Positioning device for convex surface mold core machining

Abstract

The utility model discloses a positioning device for convex surface mold core machining, and belongs to the technical field of convex surface mold core machining. The positioning device for convex surface mold core machining comprises a driving mechanism, the driving mechanism comprises a base, first connecting frames and second connecting frames are arranged on the outer portions, close to the two ends, of the base correspondingly, positioning mechanisms are arranged between the pair of first connecting frames and between the pair of second connecting frames correspondingly, and each positioning mechanism comprises a fixing base; the bottom face of the fixing base is attached to the top face of the base, a pair of L-shaped connecting plates is slidably arranged outside the fixing base, a pair of U-shaped blocks are connected to the faces, away from the fixing base, of the connecting plates, a mounting block is rotationally connected between the U-shaped blocks, and a positioning block is connected to the face, away from the connecting plates, of the mounting block. A first micro motor is arranged on the top face of one U-shaped block, and the output end of the first micro motor is in transmission connection with the mounting block.

Description

Technical Field

[0001] The utility model relates to the technical field of convex mold core processing, in particular to a positioning device for convex mold core processing. Background Art

[0002] The mold core is a precision part used for critical operations in the center of the mold. The mold core processing process includes multiple steps such as milling, CNC machining, heat treatment, grinding, CNC finishing, wire cutting, electrical discharge machining and polishing to ensure that the shape, size and surface quality of the mold core meet the design requirements. Finally, the mold core needs to be assembled with other mold parts and undergo mold trials to verify the mold processing quality and performance. A convex mold core refers to a mold core whose surface is convex in a certain direction. Whether it is cylindrical or square, as long as it meets the definition of convexity, it can be a convex mold core.

[0003] Based on the above, the inventors have found the following problems: the current convex mold core needs to be positioned using a positioning device during processing to improve the accuracy of its processing. However, when positioning the convex mold core, due to the different sizes of the convex mold core, a clamping block that meets its size is needed to clamp and position the convex mold core, which is very inconvenient and also reduces the practicality of the positioning device.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a positioning device for convex mold core processing is provided, in order to achieve the purpose of having more practical value. Utility Model Content

[0005] The purpose of the present utility model is to provide a positioning device for processing a convex mold core, so as to solve the problems raised in the above-mentioned background technology.

[0006] In view of the above problems, the technical solution proposed by the present invention is:

[0007] A positioning device for processing convex mold cores, including a driving mechanism, the driving mechanism including a base, a first connecting frame and a second connecting frame are respectively provided on the outside of the base near both ends, a positioning mechanism is provided between a pair of the first connecting frames and a pair of the second connecting frames, a pair of the positioning mechanisms each include a fixed seat, the bottom surface of the fixed seat is in contact with the top surface of the base, a pair of connecting plates are slidingly provided on the outside of the fixed seat, the pair of connecting plates are "L"-shaped, and a pair of U-shaped blocks are connected to the side of the pair of connecting plates away from the fixed seat, a mounting block is rotatably connected between the pair of U-shaped blocks, and a positioning block is connected to the side of the mounting block away from the connecting plate, a first micro motor is provided on the top surface of one of the U-shaped blocks, and the output end of the first micro motor is transmission-connected to the mounting block.

[0008] Furthermore, a pair of sliding grooves are opened on the side of the fixed seat away from the connecting plate, and the interior of the pair of sliding grooves is slidably connected to a movable seat, and the side of the pair of movable seats close to the upper end is respectively connected to a pair of connecting plates, and the interior of the fixed seat is rotatably connected to a bidirectional screw rod, and the two ends of the bidirectional screw rod respectively pass through a pair of movable seats and are respectively threadedly connected to a pair of movable seats.

[0009] The beneficial effect of adopting the above-mentioned further scheme is that, through the coordinated use of the bidirectional screw and the slide groove, when the bidirectional screw rotates, a pair of movable seats on the opposite threads at both ends thereof move toward the center under the sliding action of the slide groove, thereby realizing the adjustment of the distance between a pair of connecting plates on one side of the fixed seat.

[0010] Furthermore, a worm wheel is sleeved on the outer center of the bidirectional screw, and a worm is rotatably connected to the inner part of the fixed seat near the worm wheel, and the worm and the worm wheel are meshed with each other.

[0011] The beneficial effect of adopting the above further solution is that, through the coordinated use of the worm wheel and the worm, when the worm rotates, it is easy to drive the worm wheel to rotate, thereby realizing the rotation of the bidirectional screw.

[0012] Furthermore, a second micro motor is provided on one side of the outer wall of the fixing seat, and an output end of the second micro motor is transmission-connected to the worm.

[0013] The beneficial effect of adopting the above further solution is that by providing the second micro motor, when the second micro motor is started, it is easy to drive the worm to rotate.

[0014] Furthermore, the front and back sides of the base are provided with opposing moving mechanisms, and a pair of the opposing moving mechanisms each include a mounting frame, a rotating shaft is rotatably connected to one side of the inner wall of the mounting frame, a gear is externally sleeved on one end of the rotating shaft, and the inner bottom and top surfaces of the mounting frame are connected to T-shaped slides, and the outer sides of a pair of T-shaped slides are respectively slidably connected to a first rack and a second rack, and the gear is engaged with the first rack and the second rack.

[0015] The beneficial effect of adopting the above further scheme is that by setting up two mounting frames, when the rotating shafts in the two mounting frames rotate together, it is easy to realize the rotation of a pair of gears. Since the first rack and the second rack are respectively engaged on both sides of the outside of the gear, it is easy to realize the opposite movement of the first rack and the second rack.

[0016] Furthermore, one side of the outer wall of the first rack is connected to one end of the first connecting frame away from the fixed seat, one side of the outer wall of the second rack is connected to one end of the second connecting frame away from the fixed seat, and the height of the first connecting frame is greater than the height of the second connecting frame.

[0017] The beneficial effect of adopting the above-mentioned further scheme is that since the outer wall of the first rack is connected to the first connecting frame, the outer wall of the second rack is connected to the second connecting frame, the first rack is located below the gear, and the second rack is located above the gear. When the first rack and the second rack move in opposite directions, it is easy to realize the opposite movement of the first connecting frame and the second connecting frame.

[0018] Furthermore, the end of the rotating shaft away from the gear extends through the base to the interior, a cavity is provided inside the base, a dual-axis motor is provided between the two sides of the inner wall of the cavity, and the output ends of the dual-axis motor are transmission-connected to the rotating shaft.

[0019] The beneficial effect of adopting the above further solution is that by providing a dual-axis motor, the rotation directions of the two output ends of the dual-axis motor are consistent, and when the dual-axis motor is started, it is easy to drive a pair of rotating shafts to rotate in the same direction.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: the positioning device for processing convex mold core, when the square convex mold core is placed on the base, the pair of positioning mechanisms are moved in opposite directions by the opposite moving mechanism, so that a pair of fixed seats are fitted with the two vertical sides of the square convex mold core, and then the second micro motor is started to drive the worm to rotate, which drives the worm wheel to rotate, thereby realizing the rotation of the bidirectional screw rod, so that the pair of moving seats on the opposite threads at both ends of the bidirectional screw rod move in opposite directions toward the center under the sliding action of the slide groove, thereby realizing the adjustment of the distance between the pair of connecting plates on one side of the fixed seat, so that the pair of positioning blocks are fitted with the two horizontal edges of the square convex mold core. The flat edges fit together, thereby completing the clamping and positioning work of the square convex mold core. After the cylindrical convex mold core is placed on the base, the pair of positioning mechanisms are moved toward each other through the opposite moving mechanism, so that the distance between the pair of fixed seats becomes smaller, and then the distance between the pair of connecting plates on one side of the fixed seat is adjusted by starting the second micro motor, and at the same time, the pair of first micro motors on the same side are started, and the output ends of the pair of first micro motors on the same side are turned in opposite directions, so that the pair of positioning blocks on the same side rotate toward each other, so that the outer wall of the positioning block is pressed and fitted with the outer wall of the cylindrical convex mold core, thereby realizing the clamping and positioning work of the cylindrical convex mold core. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a positioning device for processing a convex mold core provided by the utility model;

[0022] Figure 2 This is an exploded three-dimensional structural diagram of a positioning mechanism of a positioning device for processing a convex mold core provided by the present invention;

[0023] Figure 3 The utility model provides a positioning device for processing a convex mold core Figure 2 A magnified schematic diagram of the structure in the middle;

[0024] Figure 4 This is a partial side sectional structural diagram of a fixing seat of a positioning device for processing a convex mold core provided by the present invention;

[0025] Figure 5 The utility model provides a top cross-sectional structural diagram of a base of a positioning device for processing a convex mold core.

[0026] In the figure: 100, driving mechanism; 1001, base; 1002, dual-axis motor; 200, opposing moving mechanism; 2001, mounting frame; 2002, rotating shaft; 2003, gear; 2004, T-shaped slide; 2005, first rack; 2006, second rack; 300, first connecting frame; 400, second connecting frame; 500, positioning mechanism; 5001, fixing seat; 5002, connecting plate; 5003, U-shaped block; 5004, mounting block; 5005, positioning block; 5006, first micro motor; 5007, slide; 5008, moving seat; 5009, bidirectional lead screw; 5010, worm gear; 5011, worm; 5012, second micro motor. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 5The utility model provides a technical solution: a positioning device for processing a convex mold core, including a driving mechanism 100, the driving mechanism 100 includes a base 1001, the base 1001 is respectively provided with a first connecting frame 300 and a second connecting frame 400 near the outside of the two ends, a positioning mechanism 500 is provided between the pair of first connecting frames 300 and between the pair of second connecting frames 400, and the pair of positioning mechanisms 500 includes a fixed seat 5001, the bottom surface of the fixed seat 5001 is in contact with the top surface of the base 1001, and the fixed seat 5001 is fixed. A pair of connecting plates 5002 are provided on the outside of the fixed seat 5001 for sliding movement. The pair of connecting plates 5002 are in an "L" shape, and a pair of U-shaped blocks 5003 are connected to one side of the pair of connecting plates 5002 away from the fixed seat 5001. A mounting block 5004 is rotatably connected between the pair of U-shaped blocks 5003. A positioning block 5005 is connected to one side of the mounting block 5004 away from the connecting plate 5002. A first micro motor 5006 is provided on the top surface of one of the U-shaped blocks 5003. The output end of the first micro motor 5006 is provided on the top surface of the first micro motor 5006. The mounting block 5004 is connected to the mounting block 5004. When the square convex mold is placed on the base 1001, the pair of positioning mechanisms 500 move toward each other, so that the pair of fixing seats 5001 fit with the two vertical sides of the square convex mold. When the pair of connecting plates 5002 on one side of the fixing seat 5001 move toward each other, the pair of positioning blocks 5005 fit with the two horizontal sides of the square drawing mold, thereby completing the clamping and positioning of the square convex mold. When the cylindrical convex mold is placed on the base 1001, when a The positioning mechanism 500 moves toward each other, so that the distance between the pair of fixed seats 5001 becomes smaller. When the pair of connecting plates 5002 on one side of the fixed seat 5001 move toward each other, the pair of first micro motors 5006 on the same side are started. The output ends of the pair of first micro motors 5006 on the same side rotate in opposite directions, so that the pair of positioning blocks 5005 on the same side rotate toward each other, so that the outer wall of the positioning block 5005 is pressed and fitted against the outer wall of the cylindrical convex mold core, thereby realizing the clamping and positioning of the cylindrical convex mold core.

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 5The present invention provides a technical solution: a pair of slide grooves 5007 are provided on one side of the fixed seat 5001 away from the connecting plate 5002, and a movable seat 5008 is slidably connected to the inside of the pair of slide grooves 5007. The side of the pair of movable seats 5008 close to the upper end is respectively connected to the pair of connecting plates 5002. The interior of the fixed seat 5001 is rotatably connected to a two-way screw rod 5009. The two ends of the two-way screw rod 5009 pass through the pair of movable seats 5008 respectively and are threadedly connected to the pair of movable seats 5008. A worm gear 5010 is sleeved on the outer center of the two-way screw rod 5009. A worm gear 5011 is rotatably connected to the inside of the fixed seat 5001 near the worm gear 5010. The worm 5011 and the worm wheel 5010 are meshed with each other, and a second micro motor 5012 is provided on one side of the outer wall of the fixed seat 5001. The output end of the second micro motor 5012 is connected to the worm 5011. By starting the second micro motor 5012, the worm 5011 is driven to rotate, which drives the worm wheel 5010 to rotate, thereby realizing the rotation of the bidirectional lead screw 5009, so that a pair of movable seats 5008 on opposite threads at both ends of the bidirectional lead screw 5009 can move toward the center under the sliding action of the slide groove 5007, thereby realizing the adjustment of the distance between a pair of connecting plates 5002 on one side of the fixed seat 5001, and thereby realizing the adjustment of the distance between a pair of positioning blocks 5005.

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] See also Figure 1-Figure 5The utility model provides a technical solution: the front and back sides of the base 1001 are both provided with opposing moving mechanisms 200, and a pair of opposing moving mechanisms 200 both include a mounting frame 2001, one side of the inner wall of the mounting frame 2001 is rotatably connected to a rotating shaft 2002, and one end of the rotating shaft 2002 is sleeved with a gear 2003. The inner bottom and top surfaces of the mounting frame 2001 are both connected to a T-shaped slide 2004, and the outer sides of the pair of T-shaped slides 2004 are respectively slidably connected to a first rack 2005 and a second rack 2006, and the gear 2003 is meshed with the first rack 2005 and the second rack 2006. The outer wall side of the first rack 2005 is connected to the end of the first connecting frame 300 away from the fixed seat 5001, and the outer wall side of the second rack 2006 is connected to the end of the second connecting frame 400 away from the fixed seat 5001. The height of the first connecting frame 300 is greater than the height of the second connecting frame 400, and the rotating shaft 2002 is away from One end of the gear 2003 passes through the base 1001 and extends to the interior. A cavity is provided inside the base 1001, and a dual-axis motor 1002 is provided between the two sides of the inner wall of the cavity. The output ends of the dual-axis motor 1002 are transmission-connected to the rotating shaft 2002. By setting the dual-axis motor 1002, the rotation directions of the two output ends of the dual-axis motor 1002 are consistent. When the dual-axis motor 1002 is started, it is easy to drive a pair of rotating shafts 2002 to rotate in the same direction, so as to realize the rotation of a pair of gears 2003. Since the first rack 2005 and the second rack 2006 are respectively engaged with the outer sides of the gear 2003, it is easy to realize the opposite movement of the first rack 2005 and the second rack 2006, thereby realizing the opposite movement of the first connecting frame 300 and the second connecting frame 400, and then making the fixed seat 5001 connected between the pair of first connecting frames 300 and the fixed seat 5001 connected between the pair of second connecting frames 400 move oppositely.

[0033] Specifically, the working principle of the positioning device for processing convex mold core is as follows: when in use, after the square convex mold core is placed on the base 1001, the dual-axis motor 1002 is started to drive a pair of rotating shafts 2002 to rotate in the same direction, so as to realize the rotation of a pair of gears 2003. Since the first rack 2005 and the second rack 2006 are respectively engaged on the outer sides of the gear 2003, it is convenient to realize the opposite movement of the first rack 2005 and the second rack 2006, thereby realizing the first connecting frame The first connecting frame 300 and the second connecting frame 400 move in opposite directions, thereby causing the fixing base 5001 connected between the pair of first connecting frames 300 and the fixing base 5001 connected between the pair of second connecting frames 400 to move in opposite directions, so that the pair of fixing bases 5001 fit into the two vertical sides of the square convex mold core, and then the second micro motor 5012 is started to drive the worm 5011 to rotate, which drives the worm wheel 5010 to rotate, thereby realizing the rotation of the bidirectional screw rod 5009, so that the two ends of the bidirectional screw rod 5009 are aligned. The pair of movable seats 5008 on the reverse thread move toward the center under the sliding action of the slide groove 5007, thereby adjusting the distance between the pair of connecting plates 5002 on one side of the fixed seat 5001, and then adjusting the distance between the pair of positioning blocks 5005, so that the pair of positioning blocks 5005 fit with the two horizontal edges of the square mold core, thereby completing the clamping and positioning work of the square convex mold core. When the cylindrical convex mold core is placed on the base 1001, when the pair of positioning mechanisms 50 0 move towards each other, so that the distance between the pair of fixing seats 5001 becomes smaller. When the pair of connecting plates 5002 on one side of the fixing seat 5001 move towards each other, the pair of first micro motors 5006 on the same side are started. The output ends of the pair of first micro motors 5006 on the same side rotate in opposite directions, thereby causing the pair of positioning blocks 5005 on the same side to rotate towards each other, so that the outer walls of the positioning blocks 5005 are pressed and fitted against the outer walls of the cylindrical convex mold core, thereby achieving the clamping and positioning work of the cylindrical convex mold core.

Claims

1. A positioning device for processing a convex mold core, characterized in that: The invention comprises a driving mechanism (100), wherein the driving mechanism (100) comprises a base (1001), wherein a first connecting frame (300) and a second connecting frame (400) are respectively provided on the outside of the base (1001) near both ends, and a positioning mechanism (500) is provided between a pair of the first connecting frames (300) and a pair of the second connecting frames (400), and each pair of the positioning mechanisms (500) comprises a fixing seat (5001), wherein the bottom surface of the fixing seat (5001) is in contact with the top surface of the base (1001), and the outside of the fixing seat (5001) is provided with a pair of connecting plates (5001) for sliding. 02), a pair of the connecting plates (5002) are in an "L" shape, and a pair of U-shaped blocks (5003) are connected to one side of the pair of connecting plates (5002) away from the fixing seat (5001), a mounting block (5004) is rotatably connected between the pair of U-shaped blocks (5003), and a positioning block (5005) is connected to one side of the mounting block (5004) away from the connecting plate (5002), and a first micro motor (5006) is provided on the top surface of one of the U-shaped blocks (5003), and an output end of the first micro motor (5006) is transmission-connected to the mounting block (5004).

2. A positioning device for processing a convex mold core according to claim 1, characterized in that: A pair of slide grooves (5007) are provided on a side of the fixed seat (5001) away from the connecting plate (5002), and a movable seat (5008) is slidably connected inside the pair of slide grooves (5007). The side of the pair of movable seats (5008) close to the upper end is respectively connected to a pair of connecting plates (5002). The interior of the fixed seat (5001) is rotatably connected to a bidirectional screw rod (5009), and the two ends of the bidirectional screw rod (5009) respectively pass through the pair of movable seats (5008) and are respectively threadedly connected to the pair of movable seats (5008).

3. A positioning device for processing a convex mold core according to claim 2, characterized in that: A worm wheel (5010) is sleeved on the outer center of the bidirectional screw rod (5009), and a worm (5011) is rotatably connected to the inner portion of the fixed seat (5001) near the worm wheel (5010), and the worm (5011) and the worm wheel (5010) are meshed with each other.

4. A positioning device for processing a convex mold core according to claim 3, characterized in that: A second micro motor (5012) is provided on one side of the outer wall of the fixing seat (5001), and an output end of the second micro motor (5012) is transmission-connected to the worm (5011).

5. A positioning device for processing a convex mold core according to claim 1, characterized in that: The front and back sides of the base (1001) are both provided with opposing moving mechanisms (200), and a pair of opposing moving mechanisms (200) each include a mounting frame (2001), one side of the inner wall of the mounting frame (2001) is rotatably connected to a rotating shaft (2002), one end of the rotating shaft (2002) is externally sleeved with a gear (2003), the inner bottom surface and top surface of the mounting frame (2001) are both connected to T-shaped slides (2004), the outer sides of the pair of T-shaped slides (2004) are respectively slidably connected to a first rack (2005) and a second rack (2006), and the gear (2003) is meshed with the first rack (2005) and the second rack (2006).

6. A positioning device for processing a convex mold core according to claim 5, characterized in that: One side of the outer wall of the first rack (2005) is connected to an end of the first connecting frame (300) away from the fixed seat (5001), and one side of the outer wall of the second rack (2006) is connected to an end of the second connecting frame (400) away from the fixed seat (5001), and the height of the first connecting frame (300) is greater than the height of the second connecting frame (400).

7. A positioning device for processing a convex mold core according to claim 6, characterized in that: One end of the rotating shaft (2002) away from the gear (2003) passes through the base (1001) and extends to the interior. A cavity is provided inside the base (1001). A dual-axis motor (1002) is provided between two sides of the inner wall of the cavity. The output ends of the dual-axis motor (1002) are both in transmission connection with the rotating shaft (2002).

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