High-precision positioning device for shovel tip machining mould

Abstract

The utility model relates to the technical field of positioning devices, and discloses a shovel tip machining mould high-precision positioning device which comprises a base, an installation cavity is formed in the base, the inner wall of the installation cavity is rotationally connected with a lead screw through a bearing, and the two sides of the surface of the lead screw are both in threaded connection with stroke blocks. Clamping jaws are fixedly connected to the top ends of the two stroke blocks, a back plate is fixedly connected to the back face of the base, an electric push rod is fixedly installed at the top of the back face of the back plate, a positioning plate is fixedly connected to the output end of the electric push rod, and a detection assembly is installed on the surface of the positioning plate; pushing blocks are fixedly connected to the two sides of the two stroke blocks correspondingly, and upward jacking assemblies are installed on the two sides of the interior of the installation cavity correspondingly. According to the positioning device, shovel point machining molds of different sizes can be rapidly and accurately positioned, the universality is good, the ejector rod can be driven to move upwards after the clamping jaws on the two sides are far away, the mold on the base is jacked up, and carrying is convenient.

Description

Technical Field

[0001] This utility model relates to the field of positioning device technology, and in particular to a high-precision positioning device for a shovel tip machining fixture. Background Technology

[0002] A shovel tip machining fixture is a tool specifically designed for precise support and positioning of the workpiece in shovel tip machining processes. It is typically used to ensure the accuracy of the shovel tip's geometry and dimensions. The use of positioning devices ensures the workpiece is stably fixed during machining, preventing errors and improving machining accuracy and efficiency.

[0003] However, existing positioning devices for shovel tip machining fixtures have shortcomings. First, existing positioning devices cannot quickly and accurately position shovel tip machining fixtures of different sizes, resulting in poor versatility. Second, existing positioning devices lack a lifting structure for the fixture when it is removed, and because the bottom surface of the fixture is in contact with the platform of the positioning device, it is inconvenient to lift it. Therefore, a high-precision positioning device for shovel tip machining fixtures is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a high-precision positioning device for shovel tip processing jigs, which aims to improve the existing positioning devices' inability to quickly and accurately position shovel tip processing jigs of different sizes, their poor versatility, and the lack of an upper support structure for the jig when it is removed, which makes it inconvenient to lift.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-precision positioning device for a shovel tip machining fixture, comprising a base, an installation cavity inside the base, a lead screw rotatably connected to the inner wall of the installation cavity via bearings, stroke blocks threadedly connected to both sides of the lead screw surface, grippers fixedly connected to the top of each of the two stroke blocks, a back plate fixedly connected to the back of the base, an electric push rod fixedly installed on the top of the back of the back plate, a positioning plate fixedly connected to the output end of the electric push rod, a detection component installed on the surface of the positioning plate, push blocks fixedly connected to both sides of each of the two stroke blocks, and an upper lifting component installed on both sides inside the installation cavity;

[0006] The upper assembly includes two connecting frames, four top rods, and four inclined grooves. The two connecting frames are respectively disposed on both sides inside the mounting cavity. Top rods are fixedly connected to both sides of the top of the two connecting frames. Inclined grooves are opened on both sides of the inner wall of the connecting frames.

[0007] As a further description of the above technical solution:

[0008] The detection component includes a proximity switch and an indicator light. The proximity switch is fixedly embedded on the surface of the positioning plate, and the indicator light is fixedly installed on one corner of the top of the base.

[0009] As a further description of the above technical solution:

[0010] The indicator light is electrically connected to an external power supply via a proximity switch.

[0011] As a further description of the above technical solution:

[0012] The top of each of the two ends of the inner wall of the mounting cavity is provided with an upper opening, and the tops of the four top rods are respectively placed on the inner wall of the four upper openings.

[0013] As a further description of the above technical solution:

[0014] The bottom of the inner wall of the mounting cavity is provided with lower openings at both ends, and the bottom sides of the two connecting brackets are respectively connected to the four lower openings.

[0015] As a further description of the above technical solution:

[0016] A geared motor is fixedly installed on one side of the base, and the output end of the geared motor is fixedly connected to one end of the lead screw. The threads on both sides of the lead screw surface are in opposite directions.

[0017] As a further description of the above technical solution:

[0018] The base has displacement ports on both sides at the top, and the tops of the two travel blocks are slidably connected to the two displacement ports respectively.

[0019] As a further description of the above technical solution:

[0020] A slider is fixedly connected to the middle of the bottom end of the positioning plate, and a groove is opened at the top of the base near the positioning plate, and the slider is slidably connected to the inner wall of the groove.

[0021] This utility model has the following beneficial effects:

[0022] In this invention, an electric push rod can be activated according to the width of the jig for shovel tip processing to adjust the position of the positioning plate. During placement, simply place the rear side of the jig against the positioning plate, then activate the reduction motor to drive the grippers on both sides to gradually move the jig to the central area and clamp it on both sides for positioning. A proximity switch is provided on the positioning plate, which will only control the indicator light to light up when the rear side of the jig is against the positioning plate to ensure positioning accuracy. Thus, this positioning device can quickly and accurately position jigs for shovel tip processing of different sizes, and has excellent versatility.

[0023] In this invention, when the two grippers are moved away from the jig to be removed, the push blocks on both sides of the stroke block will squeeze the connecting frame. With the cooperation of the inclined groove, the connecting frame and the top rod above can be moved upward, thereby lifting the jig on the base, making it convenient to move the jig for processing. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a high-precision positioning device for a shovel tip machining fixture proposed in this utility model;

[0025] Figure 2 This is a top cross-sectional view of a high-precision positioning device for a shovel tip machining fixture proposed in this utility model;

[0026] Figure 3 This is a partial cross-sectional view of a high-precision positioning device for a shovel tip machining fixture proposed in this utility model;

[0027] Figure 4 This is a rear-view perspective view of a high-precision positioning device for a shovel tip machining fixture proposed in this utility model.

[0028] Legend:

[0029] 1. Base; 2. Mounting cavity; 3. Lead screw; 4. Gear motor; 5. Stroke block; 6. Gripper; 7. Displacement port; 8. Back plate; 9. Electric push rod; 10. Positioning plate; 11. Slide groove; 12. Slider; 13. Push block; 14. Connecting frame; 15. Top rod; 16. Inclined groove; 17. Proximity switch; 18. Indicator light; 19. Top opening; 20. Bottom opening. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figures 1-4This utility model provides an embodiment of a high-precision positioning device for a shovel tip processing fixture, comprising a base 1, with the central area of ​​the top surface used to place the shovel tip processing fixture, an installation cavity 2 inside the base 1, a lead screw 3 rotatably connected to the inner wall of the installation cavity 2 via bearings, and stroke blocks 5 threadedly connected to both sides of the surface of the lead screw 3, which can drive the stroke blocks 5 to move when the lead screw 3 rotates, and a clamping claw 6 fixedly connected to the top of each of the two stroke blocks 5 for clamping and limiting the fixture on both sides, a back plate 8 fixedly connected to the back of the base 1, an electric push rod 9 fixedly installed on the top of the back of the back plate 8, a positioning plate 10 fixedly connected to the output end of the electric push rod 9, which can push the positioning plate 10 to move, and the position of the positioning plate 10 can be adjusted according to the width of the fixture, a detection component installed on the surface of the positioning plate 10 to detect the placement position of the fixture, a push block 13 fixedly connected to both sides of each of the two stroke blocks 5, and an upper lifting component installed on both sides inside the installation cavity 2 to lift the fixture for easy movement;

[0032] Reference Figure 3 The upper assembly includes two connecting frames 14, four push rods 15, and four inclined grooves 16. The two connecting frames 14 are respectively located on both sides inside the mounting cavity 2. The top sides of the two connecting frames 14 are fixedly connected to the push rods 15. The inner walls of the connecting frames 14 are provided with inclined grooves 16 on both sides. When the stroke block 5 moves to the end of the lead screw 3, the push blocks 13 on both sides of it will squeeze the connecting frame 14. With the cooperation of the inclined grooves 16, the connecting frame 14 and the push rods 15 above it can be driven to move upward, thereby lifting the fixture on the base 1.

[0033] Reference Figure 1 The detection components include a proximity switch 17 and an indicator light 18. The proximity switch 17 is fixedly embedded in the surface of the positioning plate 10 and is used to detect whether the rear side of the fixture is in contact with the positioning plate 10. The indicator light 18 is fixedly installed at one corner of the top of the base 1 and serves as an indicator by lighting up.

[0034] Reference Figure 1 The indicator light 18 is electrically connected to an external power supply via a proximity switch 17. The indicator light 18 will only be turned on when the proximity switch 17 detects that the rear side of the fixture is attached to the positioning plate 10, thus ensuring positioning accuracy.

[0035] Reference Figure 3 The top of the inner wall of the mounting cavity 2 is provided with upper openings 19 at both ends, and the tops of the four push rods 15 are respectively placed on the inner walls of the four upper openings 19. The upper openings 19 provide space for the upward movement of the push rods 15 to lift the fixture.

[0036] Reference Figure 3The bottom of the inner wall of the mounting cavity 2 is provided with lower openings 20 at both ends, and the bottom sides of the two connecting brackets 14 are respectively connected to the four lower openings 20. The lower openings 20 guide the movement of the connecting brackets 14 and prevent displacement.

[0037] Reference Figure 2 A geared motor 4 is fixedly installed on one side of the base 1, and the output end of the geared motor 4 is fixedly connected to one end of the lead screw 3. After the geared motor 4 is started, it can drive the lead screw 3 to rotate. The threads on both sides of the surface of the lead screw 3 are opposite, so that the travel blocks 5 on both sides and the upper jaw 6 can move in opposite directions.

[0038] Reference Figure 2 The base 1 has displacement openings 7 on both sides of its top end, and the tops of the two travel blocks 5 are slidably connected to the two displacement openings 7 respectively. The displacement openings 7 provide space for the travel blocks 5 to pass through and guide their movement.

[0039] Reference Figure 1 and Figure 2 A slider 12 is fixedly connected to the middle of the bottom end of the positioning plate 10. A groove 11 is provided at the top of the base 1 near the positioning plate 10, and the slider 12 is slidably connected to the inner wall of the groove 11. The slider 12 and the groove 11 guide and limit the movement of the positioning plate 10, thereby improving the stability during movement.

[0040] Working principle: The electric push rod 9 can be activated according to the width of the jig for machining the shovel tip, adjusting the position of the positioning plate 10. During placement, simply place the rear side of the jig against the positioning plate 10, then activate the reduction motor 4 to drive the lead screw 3 to rotate. Because the threads on both sides of the lead screw 3 are in opposite directions, and guided by the displacement port 7, the travel blocks 5 on both sides move in opposite directions, thereby causing the grippers 6 on both sides to gradually move closer, moving the jig to the central area and clamping it on both sides for positioning. A proximity switch 17 is provided on the positioning plate 10; only when... When the rear side of the jig is attached to the positioning plate 10, the indicator light 18 will be lit to ensure positioning accuracy. Thus, the positioning device can quickly and accurately position jigs of different sizes for shovel tip processing. It has good versatility. When the two grippers 6 are moved away to prepare to remove the jig, the push blocks 13 on both sides of the stroke block 5 will squeeze the connecting frame 14. With the cooperation of the inclined groove 16, the connecting frame 14 and the top rod 15 above can be driven to move upward, thereby lifting the jig on the base 1, making it convenient to move the jig for shovel tip processing. The proximity switch 17 is model BLX51-J.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-precision positioning device for a point processing mould, comprising a base (1), characterized in that: The inside of the base (1) is provided with a mounting cavity (2), the inner wall of the mounting cavity (2) is rotatably connected with a lead screw (3) through a bearing, the surface of the lead screw (3) is threadedly connected with a stroke block (5) on both sides, the top of the two stroke blocks (5) is fixedly connected with a clamping jaw (6), the back of the base (1) is fixedly connected with a back plate (8), the top of the back of the back plate (8) is fixedly installed with an electric push rod (9), the output end of the electric push rod (9) is fixedly connected with a positioning plate (10), the surface of the positioning plate (10) is provided with a detection assembly, the two sides of the two stroke blocks (5) are fixedly connected with a push block (13), and the inside of the mounting cavity (2) is provided with an upper top assembly on both sides; The upper top assembly comprises two connecting frames (14), four top rods (15) and four inclined grooves (16), two connecting frames (14) are arranged on the two sides of the inside of the mounting cavity (2), the two sides of the top of the two connecting frames (14) are fixedly connected with a top rod (15), and the two sides of the inner wall of the connecting frame (14) are provided with an inclined groove (16).

2. The high-precision positioning device for a point processing mould according to claim 1, characterized in that: The detection assembly comprises a proximity switch (17) and an indicator light (18), the proximity switch (17) is fixedly embedded on the surface of the positioning plate (10), and the indicator light (18) is fixedly installed at a corner of the top of the base (1).

3. The high-precision positioning device for a point processing mould according to claim 2, characterized in that: The indicator light (18) is electrically connected with an external power supply through the proximity switch (17).

4. The high-precision positioning device for a point processing mold according to claim 1, characterized in that: The two ends of the top of the inner wall of the mounting cavity (2) are provided with upper openings (19), and the tops of the four top rods (15) are respectively arranged in the inner walls of the four upper openings (19).

5. The high-precision positioning device for a point processing mould according to claim 1, characterized in that: The two ends of the bottom of the inner wall of the mounting cavity (2) are provided with lower openings (20), and the bottoms of the two connecting frames (14) are respectively connected with the four lower openings (20).

6. The high-precision positioning device for a point processing mould according to claim 1, characterized in that: One side of the base (1) is fixedly installed with a speed reducer (4), one end of the speed reducer (4) is fixedly connected with the lead screw (3), and the thread directions of the two sides of the surface of the lead screw (3) are opposite.

7. The high-precision positioning device for a point processing mould according to claim 1, characterized in that: The two sides of the top of the base (1) are provided with displacement openings (7), and the tops of the two stroke blocks (5) are respectively connected with the two displacement openings (7) in a sliding manner.

8. The high-precision positioning device for a point processing mould according to claim 1, characterized in that: The middle of the bottom of the positioning plate (10) is fixedly connected with a sliding block (12), the top of the base (1) is provided with a sliding groove (11) near the positioning plate (10), and the sliding block (12) is slidably connected to the inner wall of the sliding groove (11).

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