A general-purpose manufacturing and correcting tool for a fairway inductor coil
The split-structure calibration mold frame enables universal calibration of different types of induction coils, solving the problem that existing tooling cannot guarantee consistency and accuracy, improving the manufacturing efficiency and accuracy of induction coils, and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG TELFORD PRECISION DRIVE MFG CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-21
AI Technical Summary
Existing tooling for manufacturing ball track induction coils requires the use of different calibration tooling, resulting in poor calibration effects, inability to guarantee sensor consistency and dimensional accuracy, and inability to guarantee accuracy over long-term use.
The calibration mold frame adopts a split structure, including a support base, side baffles, calibration plate, connecting guide pillars and movable guide plates. Through the slide rail structure of connecting guide pillars and snap-fit guide sleeves, universal calibration of different types of induction coils can be achieved, ensuring the center distance and perpendicularity accuracy of the induction coils.
This improved the consistency and precision of sensor coil manufacturing, reduced mold material and manufacturing costs, extended mold life, and reduced labor intensity and manufacturing time.
Smart Images

Figure CN224526344U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of calibration tooling technology, specifically a universal calibration tooling for ball track sensor coils. Background Technology
[0002] After the ball track sensor is manufactured, the perpendicularity between the clamping surface and the positioning surface, as well as the concentricity and perpendicularity of the effective coil position, need to be checked. To improve the detection efficiency of the ball track sensor coil, appropriate calibration fixtures are usually used.
[0003] For example, the patent with announcement number CN205332960U, titled "A Ballway Sensor Correction Device," and announcement date June 22, 2016, includes a base frame, a fixing frame for fixing the ballway sensor on the base frame, the fixing frame being movably connected to the base frame, a fixing groove on the fixing frame, a clamping assembly for clamping the ballway sensor on the fixing frame, and a guide assembly for the movement of the fixing frame. The advantages of this invention are: the ballway sensor is fixed in the fixing groove on the fixing frame, and the locking assembly locks the ballway sensor onto the fixing frame; the perpendicularity between the clamping surface and the positioning surface of the ballway sensor is detected by the perpendicularity of the first vertical part and the first horizontal part; and the concentricity and perpendicularity of the effective circle position of the ballway sensor are detected by the first vertical part and the fixing frame, resulting in high detection efficiency.
[0004] The existing technologies mentioned above have the following technical problems: the existing tooling for manufacturing ball track induction coils requires different calibration tooling for bell-shaped shells, sliding sleeves, and three-column slot shells. At the same time, the calibration effect of the calibration tooling is poor, which cannot guarantee the consistency and dimensional accuracy of the sensor. There is no self-leveling mold, and the accuracy cannot be guaranteed after long-term use.
[0005] Therefore, we propose a universal manufacturing and calibration fixture for ball track sensor coils to solve the problems mentioned above. Summary of the Invention
[0006] The purpose of this utility model is to provide a universal manufacturing and calibration fixture for ball track sensor coils, in order to solve the problems mentioned in the background art. Currently available ball track sensor coil manufacturing fixtures on the market require different calibration fixtures for bell-shaped shells, sliding sleeves, and three-column slot shells. At the same time, the calibration effect of the existing calibration fixtures is poor, which cannot guarantee the consistency and dimensional accuracy of the sensors. Furthermore, there is no self-leveling mold, and the accuracy cannot be guaranteed after long-term use.
[0007] To achieve the above objectives, the technical approach adopted by this utility model is as follows: bell-shaped shells, three-column groove shells, and cylindrical shells can all be welded and corrected using a correction mold frame. The split structure provides strong versatility, and the separate parts of different induction coil-specific molds are minimized, saving a significant amount of mold materials and manufacturing costs. The induction coil welding correction mold frame ensures the main dimensional accuracy required by the ball track sensor coil. Induction coils made with this mold frame have good consistency and high precision. The induction coil welding correction mold frame has a long lifespan, expected to last for more than 10 years, reducing sensor manufacturing costs. The induction coil welding correction mold frame is convenient and labor-saving to use, reducing labor intensity and manufacturing time costs.
[0008] To achieve the above objectives, this utility model provides the following technical solution:
[0009] A universal manufacturing and calibration fixture for a ball track sensor coil includes a support base and side baffles and a calibration plate respectively installed on the left and right sides of the support base. A positioning pressure plate is installed on the support base for pressing the induction coil. A positioning pin is installed on the calibration plate, and connecting guide posts are installed through the sides of the side baffles and the calibration plate. A movable guide plate is installed on the connecting guide post, and a receiving groove is opened in the middle of the movable guide plate. A calibration split mold is installed inside the receiving groove, and the calibration split mold is fixed in the receiving groove by clamping bolts. A central positioning groove is opened on the side baffle.
[0010] Further defining the above technical solution, the side baffle and the calibration plate are distributed in parallel, and two positioning pins are symmetrically distributed on the calibration plate.
[0011] By adopting the above technical solution, through the parallel parts of the side baffle and the calibration plate, and the vertical distribution of the calibration plate to the support base, the verticality of the ball lane sensor can be calibrated.
[0012] As a further limitation of the above technical solution, the end of the connecting guide post is equipped with a snap-fit guide sleeve, and the snap-fit guide sleeve is fixed to the side baffle by bolts.
[0013] By adopting the above technical solution, the snap-fit guide sleeve is fixed with bolts, which makes it easier to remove the connecting guide post from the side baffle and the calibration plate later.
[0014] Further defining the above technical solution, the movable guide plate is capable of sliding on the connecting guide post, and the sliding gap between the movable guide plate and the connecting guide post is less than 0.04 mm.
[0015] By adopting the above technical solution and setting the sliding gap between the movable guide plate and the connecting guide post, the stability of the movable guide plate when moving on the connecting guide post can be improved.
[0016] As a further limitation of the above technical solution, the outer walls of the left and right ends of the correction mold and the inner side walls of the receiving groove are in close contact with each other.
[0017] By adopting the above technical solution and correcting the split-type setting of the split mold, it is convenient to adjust and replace different molds according to the different shapes of sensor coils.
[0018] Further defining the above technical solution, the clamping bolt and the movable guide plate are threaded together, and the contact surface between the bottom of the clamping bolt and the side of the correction split mold is set as a rough surface.
[0019] By adopting the above technical solution, the lower end can be used to press the correction mold by rotating the clamping bolt on the movable guide plate.
[0020] As a further limitation of the above technical solution, an ejector screw is installed through the side of the movable guide plate, and the end of the ejector screw is connected to the side baffle through a bearing.
[0021] By adopting the above technical solution, the rotation of the ejector screw enables the movable guide plate of the threaded connection to move.
[0022] Compared with the prior art, the beneficial effects of this utility model are: the universal manufacturing and calibration fixture for the ball track sensor coil can be used to weld and calibrate different models of sensor coils after the corresponding calibration molds are made. It has extremely strong versatility. The guide post clamping guide sleeve slide rail structure saves time and effort in calibration. It can ensure the manufacturing accuracy of the center distance of the sensor coil, as well as the verticality, trisection and other important dimensions of the sensor coil. The guide post clamping guide sleeve can also be replaced separately.
[0023] 1. It is equipped with a calibration split mold. The calibration split mold and the movable guide plate are designed separately, so that different shapes of calibration split molds can be replaced according to different models of induction coils, thereby improving the overall versatility.
[0024] 2. It is equipped with connecting guide pillars, which facilitates the movement of the movable guide plate and ensures that the center of the split mold and the center of the positioning groove are on the same straight line. This effectively adjusts and ensures the manufacturing accuracy of the center distance of the sensor coil.
[0025] 3. A snap-fit guide sleeve is provided, which is fixed to the side baffle by bolts, making it easy to replace the connecting guide post and the snap-fit guide sleeve in the future. At the same time, an ejector screw is installed on the movable guide plate, and the movable guide plate can be easily moved and adjusted by rotating the ejector screw. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0027] Figure 1 This is a schematic diagram of the calibration plate and positioning pin structure of this utility model;
[0028] Figure 2 This is a schematic diagram of the side baffle and the centering positioning groove of this utility model;
[0029] Figure 3 This is a schematic diagram of the front structure of this utility model;
[0030] Figure 4 This is a top view of the structure of this utility model;
[0031] Figure 5 This is a side view of the structure of this utility model.
[0032] In the diagram: 1. Support base; 2. Side baffle; 3. Positioning pressure plate; 4. Alignment plate; 5. Positioning pin; 6. Connecting guide post; 7. Movable guide plate; 8. Accommodating groove; 9. Alignment split mold; 10. Clamping bolt; 11. Centered positioning groove; 12. Snap-fit guide sleeve; 13. Ejection screw. Detailed Implementation
[0033] 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.
[0034] Example 1: Please refer to Figures 1-5Existing ball track induction coil manufacturing fixtures require different calibration fixtures for bell-shaped shells, sliding sleeves, and three-column slot shells. Furthermore, the calibration effect of these fixtures is poor, failing to guarantee sensor consistency and dimensional accuracy. They also lack self-leveling molds, making it difficult to guarantee accuracy over long-term use. To address these technical problems, this embodiment discloses the following technical content: a universal ball track sensor coil manufacturing calibration fixture, including a support base 1 and side baffles 2 and calibration plates 4 respectively installed on the left and right sides of the support base 1. A positioning pressure plate 3 is installed on the support base 1 to press the induction coil. A positioning pin 5 is installed on the calibration plate 4. Connecting guide posts 6 are installed through the sides of the side baffles 2 and calibration plates 4. A movable guide plate 7 is installed on the connecting guide post 6, and a receiving groove 8 is formed in the middle of the movable guide plate 7. The accommodating groove 8 is equipped with a calibration split mold 9, which is fixed in the accommodating groove 8 by a clamping bolt 10. A centering positioning groove 11 is provided on the side baffle 2. The side baffle 2 and the calibration plate 4 are parallel to each other, and two positioning pins 5 are symmetrically distributed on the calibration plate 4. The movable guide plate 7 can slide on the connecting guide post 6, and the sliding gap between the movable guide plate 7 and the connecting guide post 6 is less than 0.04mm. The outer walls of the left and right ends of the calibration split mold 9 and the inner walls of the side of the accommodating groove 8 are in contact with each other. The clamping bolt 10 and the movable guide plate 7 are threaded together, and the contact surface between the bottom of the clamping bolt 10 and the side of the calibration split mold 9 is set as a rough surface. An ejector screw 13 is installed through the side of the movable guide plate 7, and the end of the ejector screw 13 is connected to the side baffle 2 by a bearing.
[0035] During calibration, the calibration mold 9 in the receiving slot 8 is replaced according to the different shapes of the induction coils. After the calibration mold 9 is placed inside the receiving slot 8, the clamping bolt 10 on the movable guide plate 7 is turned to fix the lower end of the clamping bolt 10 to the calibration mold 9. At the same time, the induction coil is fixed to the positioning plate 3 by bolts. The movable guide plate 7 can be moved and adjusted on the connecting guide post 6. The slide rail structure of connecting guide post 6 and snap-fit guide sleeve 12 saves time and effort during calibration. It can ensure the manufacturing accuracy of the center distance of the induction coil, as well as the perpendicularity and trisection of the induction coil and all other important dimensions. At the same time, the ejector screw 13 can be used to move and adjust the threaded movable guide plate 7 when rotating. The sliding gap between the movable guide plate 7 and the connecting guide post 6 is less than 0.04mm, which can improve the stability of the movable guide plate 7 when moving on the connecting guide post 6.
[0036] In this embodiment, the calibration mold 9 and the movable guide plate 7 are designed as separate parts, so that different shapes of calibration mold 9 can be replaced according to different models of induction coils, thereby improving the overall versatility. The setting of the connecting guide post 6 makes it easy to move the movable guide plate 7. At the same time, the center of the calibration mold 9 and the center of the central positioning groove 11 are on the same straight line, so that the movement and adjustment can be effectively adjusted to ensure the manufacturing accuracy of the center distance of the induction coil.
[0037] Example 2: The technical content disclosed in this example is a further improvement based on Example 1 described above. The following technical content is disclosed in this example: Figures 1-3 As shown, a snap-fit guide sleeve 12 is installed at the end of the connecting guide post 6, and the snap-fit guide sleeve 12 is fixed to the side baffle 2 by bolts.
[0038] The connecting guide post 6 facilitates the movement of the movable guide plate 7. Meanwhile, the snap-fit guide sleeve 12 is fixed to the side baffle 2 by bolts, which makes it easy to unscrew the bolts and release the fixation of the snap-fit guide sleeve 12 and the connecting guide post 6, making it convenient to replace the snap-fit guide sleeve 12 and the connecting guide post 6.
[0039] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0040] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of this utility model to facilitate understanding and application by those skilled in the art. It should not be construed that the specific implementation of this utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of this utility model, without requiring creative effort. Therefore, any simple improvements made to this utility model by those skilled in the art based on its disclosure should be within the protection scope of this utility model.
Claims
1. A universal manufacturing and calibration fixture for a ball track sensor coil, comprising a support base (1) and side baffles (2) and a calibration plate (4) respectively installed on the left and right sides of the support base (1), characterized in that: The support base (1) is equipped with a positioning pressure plate (3) for pressing the induction coil. The calibration plate (4) is equipped with a positioning pin (5). The side baffle (2) and the calibration plate (4) are connected by a connecting guide post (6). The connecting guide post (6) is equipped with a movable guide plate (7). The movable guide plate (7) has a receiving groove (8) in the middle. The receiving groove (8) is equipped with a calibration split mold (9). The calibration split mold (9) is fixed in the receiving groove (8) by a clamping bolt (10). The side baffle (2) has a central positioning groove (11).
2. The universal manufacturing and calibration fixture for a ball track sensor coil according to claim 1, characterized in that: The side baffle (2) and the calibration plate (4) are parallel to each other, and two positioning pins (5) are symmetrically distributed on the calibration plate (4).
3. The universal manufacturing and calibration fixture for a ball track sensor coil according to claim 1, characterized in that: The end of the connecting guide post (6) is equipped with a snap-fit guide sleeve (12), and the snap-fit guide sleeve (12) is fixed to the side baffle (2) by bolts.
4. The universal manufacturing and calibration fixture for a ball track sensor coil according to claim 1, characterized in that: The movable guide plate (7) can slide on the connecting guide post (6), and the sliding gap between the movable guide plate (7) and the connecting guide post (6) is less than 0.04 mm.
5. The universal manufacturing and calibration fixture for a ball track sensor coil according to claim 1, characterized in that: The outer walls of the left and right ends of the correction mold (9) and the inner side walls of the receiving groove (8) are in contact with each other.
6. The universal manufacturing and calibration fixture for a ball track sensor coil according to claim 1, characterized in that: The clamping bolt (10) and the movable guide plate (7) are threaded together, and the contact surface between the bottom of the clamping bolt (10) and the side of the correction split mold (9) is set as a rough surface.
7. The universal manufacturing and calibration fixture for a ball track sensor coil according to claim 1, characterized in that: The side of the movable guide plate (7) is fitted with an ejector screw (13), and the end of the ejector screw (13) is connected to the side baffle (2) by a bearing.