A rapid synchronization positioning device for milling groove depth

Abstract

The utility model relates to a kind of quick synchronous positioning device of milling slot depth, a: machine table, one side of which is slidably provided with milling motor, and the bottom end of the milling motor is provided with milling cutter.The utility model relates to the technical field of milling slot processing equipment.The quick synchronous positioning device of milling slot depth, the milling motor on machine table drives cutter and entire positioning device to feed downward, the bottom end of positioning rod first contacts with workpiece surface, then, the milling motor continues to go down, and the positioning rod is relatively stationary because it is against workpiece, and limiting tube is synchronously moved downward with the milling motor, and relative sliding occurs between the two, and when the lower end of the limiting tube drops to contact with the upper surface of main positioning block, the main positioning block provides rigid mechanical limit for the entire downward mechanism, the milling motor cannot continue to go down, and the milling depth reaches preset value immediately, effectively preventing the occurrence of overcut phenomenon, ensuring the machining depth precision, and the repeated positioning precision of next workpiece is high.

Description

Technical Field

[0001] This utility model relates to the technical field of milling groove processing equipment, and in particular to a rapid synchronous positioning device for milling groove depth. Background Technology

[0002] In the field of mechanical milling, precise control of the milling groove depth is crucial to ensuring product quality.

[0003] Currently, conventional milling machines typically rely on operators to manually control the feed depth, roughly positioning the machine by visually inspecting a ruler or using a dial indicator, and then repeatedly cutting, measuring, and adjusting to achieve the target depth. This method is not only inefficient and the machining accuracy is heavily dependent on the operator's experience and skill level, but it is also difficult to guarantee the consistency of depth dimensions in mass production. Although CNC machine tools can achieve precise depth control, their high cost and maintenance expenses make them unaffordable for many small and medium-sized enterprises. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a rapid synchronous positioning device for milling groove depth, so as to solve the technical problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A rapid synchronous positioning device for milling groove depth includes: The machine base has a milling motor slidably mounted on one side, a milling cutter mounted at the bottom of the milling motor, a guide ring fixedly mounted on the outer peripheral wall of the milling motor, a rotating ring rotatably mounted on the outer peripheral wall of the guide ring, and a limit tube mounted on the side wall of the rotating ring. A positioning rod is slidably arranged inside the limiting tube. The top of the positioning rod has two outer protrusions on both sides. A main control screw is rotatably arranged inside the positioning rod. A main positioning block is slidably arranged inside the positioning rod and below the limiting tube. The main positioning block is threadedly engaged with the main control screw, and both ends of the main positioning block protrude from the side wall of the positioning rod. A sliding groove is provided on one side of the top of the limiting tube. A secondary positioning block is slidably arranged inside the sliding groove. A secondary control screw is rotatably arranged inside the sliding groove. The secondary control screw is threadedly engaged with the secondary positioning block.

[0006] Furthermore, the secondary positioning block is located below the outer protrusion edge, and rotating the secondary control screw drives the secondary positioning block to rise and fall, thereby applying a thrust to the outer protrusion edge.

[0007] Furthermore, the two sides of the main positioning block are in contact with and slide against the two side walls of the positioning rod to guide the main positioning block.

[0008] Furthermore, the bottom end of the positioning rod is rotatably equipped with guide balls.

[0009] Furthermore, both the main control screw and the secondary control screw are equipped with graduated adjustment knobs at their ends, and the outer surface of the positioning rod is equipped with positioning scales.

[0010] Furthermore, the outer wall of the guide ring is provided with a guide hole, and a retaining bead is installed inside the guide hole by a spring. The inner wall of the rotating ring is provided with a limiting hole that cooperates with the retaining bead.

[0011] In summary, this utility model has at least one of the following beneficial technical effects: 1. This is a rapid synchronous positioning device for milling groove depth. The milling motor on the machine tool drives the cutting tool and the entire positioning device to feed downwards. The bottom end of the positioning rod contacts the workpiece surface first. Then, the milling motor continues to move downwards. The positioning rod is relatively stationary because it is against the workpiece. The limiting tube moves downwards synchronously with the milling motor. The two slide relative to each other. When the lower end of the limiting tube descends to contact the upper surface of the main positioning block, the main positioning block provides a rigid mechanical limit for the entire downward movement mechanism. The milling motor can no longer move downwards, and the milling depth immediately reaches the preset value. This effectively and thoroughly prevents overcutting, ensures the machining depth accuracy, and has high repeatability positioning accuracy for the next workpiece. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a structural schematic diagram of a rapid synchronous positioning device for milling groove depth according to the present invention.

[0014] Figure 2 This is a schematic diagram of the structure of the milling motor and the limiting tube of a rapid synchronous positioning device for milling groove depth according to this utility model.

[0015] Figure 3 This is a schematic diagram of the guide ring of a rapid synchronous positioning device for milling groove depth according to the present invention.

[0016] Figure 4 This is a schematic diagram of the positioning rod of a rapid synchronous positioning device for milling groove depth according to the present invention.

[0017] In the diagram, 1. Machine base; 2. Milling motor; 3. Guide ring; 4. Rotating ring; 5. Limiting tube; 6. Positioning rod; 7. Outer flange; 8. Main control screw; 9. Main positioning block; 10. Sliding groove; 11. Secondary positioning block; 12. Secondary control screw; 13. Guide ball; 14. Adjustment knob; 15. Guide hole; 16. Clamping ball. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings.

[0019] Example: Reference Figure 1 - Figure 4 The present invention discloses a rapid synchronous positioning device for milling groove depth, comprising: The machine base 1 has a milling motor 2 slidably mounted on one side, a milling cutter mounted at the bottom of the milling motor 2, a guide ring 3 fixedly mounted on the outer peripheral wall of the milling motor 2, a rotating ring 4 rotatably mounted on the outer peripheral wall of the guide ring 3, and a limit tube 5 mounted on the side wall of the rotating ring 4. A positioning rod 6 is slidably arranged inside the limiting tube 5. The top two sides of the positioning rod 6 are provided with external protrusions 7. A main control screw 8 is rotatably arranged inside the positioning rod 6. A main positioning block 9 is slidably arranged inside the positioning rod 6 and below the limiting tube 5. The main positioning block 9 is threadedly engaged with the main control screw 8, and both ends of the main positioning block 9 protrude from the side wall of the positioning rod 6. A sliding groove 10 is provided on one side of the top end of the limiting tube 5. A secondary positioning block 11 is slidably arranged inside the sliding groove 10. A secondary control screw 12 is rotatably arranged inside the sliding groove 10. The secondary control screw 12 is threadedly engaged with the secondary positioning block 11.

[0020] In this embodiment, when in use, the operator first presets the depth according to the processing requirements, and drives the secondary positioning block 11 to rise in the sliding groove 10 by rotating the secondary control screw 12. Since the secondary positioning block 11 is located below the outer protrusion 7, its rising process applies an upward thrust to the outer protrusion 7, thereby pushing the entire positioning rod 6 to slide upward inside the limiting tube 5, realizing the rapid coarse adjustment of the initial distance between the milling cutter and the bottom end of the positioning rod 6. Next, the main control screw 8 is rotated to drive the main positioning block 9 to move precisely up and down inside the positioning rod 6. The two sides of the main positioning block 9 slide against the side wall of the positioning rod 6, which plays a good guiding role and ensures the stability and accuracy of the fine adjustment process. When milling begins, the milling motor 2 on the machine tool 1 drives the cutting tool and the entire positioning device to feed downwards. When the guide ball 13, which is rotated at the bottom of the positioning rod 6, first contacts the workpiece surface, the rolling friction characteristics of the guide ball 13 greatly reduce the frictional resistance and scratch risk with the workpiece surface. Subsequently, the milling motor 2 continues to move downwards, the positioning rod 6 remains relatively stationary due to its contact with the workpiece, and the limit tube 5 moves downwards synchronously with the milling motor 2, and the two slide relative to each other. When the lower end of the limiting tube 5 descends to contact the upper surface of the pre-set main positioning block 9, the main positioning block 9 provides a rigid mechanical limit for the entire downward movement mechanism, the milling motor 2 cannot continue to descend, and the milling depth immediately reaches the preset value, effectively and thoroughly preventing the overcut phenomenon, ensuring the machining depth accuracy, and having high repeatability accuracy for the next workpiece. After processing, the milling motor 2 is raised and the entire device is reset. The rotational fit design between the guide ring 3 and the rotating ring 4 allows the operator to easily rotate the spring ball 16 on the outer wall of the entire limiting tube 5 to fit with the limiting hole on the inner wall of the rotating ring 4. This provides a clear positioning feel and self-locking function after rotation into place, preventing damage to the settings due to accidental rotation during processing and improving the reliability of the device. The graduated adjustment knobs 14 at the ends of the main control screw 8 and the secondary control screw 12, combined with the positioning scale on the outer surface of the positioning rod 6, provide a quantifiable reading reference for the depth setting process. This greatly facilitates operators to quickly and accurately preset and fine-tune, further improving processing efficiency and consistency of precision.

[0021] In a further preferred embodiment of this utility model, such as Figure 4 As shown, the secondary positioning block 11 is located below the outer protrusion 7. Rotating the secondary control screw 12 drives the secondary positioning block 11 to rise and fall, thereby applying a thrust to the outer protrusion 7.

[0022] In this embodiment, the secondary positioning block 11 is installed below the outer protrusion 7. By rotating the secondary control screw 12, the secondary positioning block 11 is driven to move upward along the sliding groove 10, thereby pushing the outer protrusion 7 at the top of the positioning rod 6 from below, forcing the entire positioning rod 6 to slide upward within the limiting tube 5, thereby quickly and significantly adjusting the relative height between the bottom end of the positioning rod 6 and the milling cutter.

[0023] In a further preferred embodiment of this utility model, such as Figure 4 As shown, the two sides of the main positioning block 9 are in contact with and slide against the two side walls of the positioning rod 6, which is used to guide the main positioning block 9.

[0024] In this embodiment, the two sides of the main positioning block 9 maintain a large-area contact and sliding fit with the inner sidewall of the positioning rod 6. When the main positioning block 9 moves under the drive of the main control screw 8, its two side planes always slide close to the inner wall of the positioning rod 6. These two inner walls form a precise guide track, which effectively constrains the movement trajectory of the main positioning block 9 and prevents it from deflecting or getting stuck under the drive of the screw.

[0025] In a further preferred embodiment of this utility model, such as Figure 4 As shown, the bottom end of the positioning rod 6 is rotatably equipped with a guide ball 13.

[0026] In this embodiment, a guide ball 13 is rotatably provided at the bottom end of the positioning rod 6. During the milling feed process, when the device descends, the guide ball 13 contacts the workpiece surface before the rod body of the positioning rod 6, and then rolls on the workpiece surface until the milling is completed. It transforms the sliding friction between the positioning rod 6 and the workpiece surface into rolling friction, which greatly reduces the moving resistance and contact stress, and protects the workpiece surface from scratches.

[0027] In a further preferred embodiment of this utility model, such as Figure 2 As shown, both the main control screw 8 and the secondary control screw 12 are equipped with graduated adjustment knobs 14 at their ends, and the outer surface of the positioning rod 6 is equipped with positioning scales.

[0028] In this embodiment, the operator can quantitatively control the movement of the secondary positioning block 11 and the main positioning block 9 by observing the number of turns on the knob and combining the readings with the positioning scale on the outer surface of the positioning rod 6. This allows for quick and accurate preset of initial values ​​and precise fine-tuning, greatly improving processing efficiency, repeatability, and batch consistency.

[0029] In a further preferred embodiment of this utility model, such as Figure 3 As shown, the outer wall of the guide ring 3 is provided with a guide hole 15, and a retaining bead 16 is installed inside the guide hole 15 by a spring. The inner wall of the rotating ring 4 is provided with a limiting hole that cooperates with the retaining bead 16.

[0030] In this embodiment, a retaining bead 16 is installed in the guide hole 15 on the outer wall of the guide ring 3 by means of a spring, and cooperates with the limiting hole on the inner wall of the rotating ring 4. When the rotating ring 4 rotates to a specific angle, the ball part of the retaining bead 16 will be embedded in the corresponding limiting hole under the action of the spring, ensuring that it will not deflect due to equipment vibration or accidental contact during operation, thereby ensuring the stability of the set processing posture and enhancing the operation feel and reliability of the entire device.

[0031] The implementation principle of the above embodiment is as follows: First, the secondary positioning block 11 is driven to rise by rotating the secondary control screw 12, which pushes the outer protruding edge 7 of the positioning rod 6 from below. Then, the main positioning block 9 is driven to move precisely by rotating the main control screw 8. During machining, as the milling motor 2 moves downward, the guide ball 13 at the bottom of the positioning rod 6 first contacts the workpiece surface, and then the limiting tube 5 continues to move downward with the motor until it contacts the main positioning block 9, forming a rigid mechanical limit, thereby precisely controlling the milling depth.

[0032] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A rapid synchronous positioning device for milling groove depth, characterized in that, Including: The machine base (1) has a milling motor (2) slidably mounted on one side. A milling cutter is mounted at the bottom of the milling motor (2). A guide ring (3) is fixedly mounted on the outer peripheral wall of the milling motor (2). A rotating ring (4) is rotatably mounted on the outer peripheral wall of the guide ring (3). A limit tube (5) is mounted on the side wall of the rotating ring (4). A positioning rod (6) is slidably arranged inside the limiting tube (5). The top two sides of the positioning rod (6) are provided with external protrusions (7). A main control screw (8) is rotatably arranged inside the positioning rod (6). A main positioning block (9) is slidably arranged inside the positioning rod (6) and below the limiting tube (5). The main positioning block (9) is threadedly engaged with the main control screw (8), and both ends of the main positioning block (9) protrude from the side wall of the positioning rod (6). A sliding groove (10) is provided on one side of the top end of the limiting tube (5). A secondary positioning block (11) is slidably arranged inside the sliding groove (10). A secondary control screw (12) is rotatably arranged inside the sliding groove (10). The secondary control screw (12) is threadedly engaged with the secondary positioning block (11).

2. The rapid synchronous positioning device for milling groove depth according to claim 1, characterized in that, The secondary positioning block (11) is located below the outer protrusion (7). Rotating the secondary control screw (12) drives the secondary positioning block (11) to rise and fall, which is used to apply thrust to the outer protrusion (7).

3. The rapid synchronous positioning device for milling groove depth according to claim 2, characterized in that, The two sides of the main positioning block (9) are in contact with and slide against the two side walls of the positioning rod (6) to guide the main positioning block (9).

4. The rapid synchronous positioning device for milling groove depth according to claim 3, characterized in that, The bottom end of the positioning rod (6) is rotatably equipped with a guide ball (13).

5. The rapid synchronous positioning device for milling groove depth according to claim 4, characterized in that, The ends of the main control screw (8) and the secondary control screw (12) are provided with graduated adjustment knobs (14), and the outer surface of the positioning rod (6) is provided with positioning scale.

6. The rapid synchronous positioning device for milling groove depth according to claim 5, characterized in that, The outer wall of the guide ring (3) is provided with a guide hole (15), and a retaining bead (16) is installed inside the guide hole (15) by a spring. The inner wall of the rotating ring (4) is provided with a limiting hole that cooperates with the retaining bead (16).

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