Assembly method of force balance acceleration sensor coil framework

Abstract

An assembling method of a force balance acceleration sensor coil framework comprises the steps that firstly, a front clamping plate and a rear clamping plate are adopted to clamp a coil from the front side and the rear side; 2, assembling a lower insulating base plate, a pendulum bob base plate or a metal base plate and an upper insulating base plate at one end of the coil in sequence, and then clamping by adopting an upper clamping plate; 3, assembling a lower insulating base plate, a metal base plate or a pendulum bob base plate and an upper insulating base plate at the other end of the coil in sequence, and then clamping by adopting a lower clamping plate; and fourthly, a push plate penetrates through the upper clamping plate or the lower clamping plate to bend the clamping jaw of the coil. The front clamping plate and the rear clamping plate are used for clamping the coil, then parts at the two ends of the coil are assembled, after one end is assembled, the upper clamping plate is used for clamping the end, then the other end is assembled, and the parts are prevented from loosening in the assembling process. And after assembly is completed, the push plate penetrates through the upper clamping plate or the lower clamping plate to bend the clamping jaw of the coil, the upper clamping plate or the lower clamping plate is used for guiding the push plate, and the accuracy of the bending size is guaranteed.

Description

Technical Field

[0001] The invention relates to an assembly method of a coil frame, in particular to an assembly method of a coil frame of a force balance acceleration sensor. Background Art

[0002] The coil skeleton used in a force balance acceleration sensor for monitoring acceleration (disclosed in the applicant's previous invention application with application number CN202211052913.9, entitled "A method for monitoring acceleration using a force balance acceleration sensor", and utility model patent with application number CN202222300593.6, entitled "A force balance acceleration sensor") has a very small product size but many parts. Manual assembly is difficult and slow, so an assembly method is designed to replace manual assembly. Summary of the invention

[0003] Aiming at the problem that the manual assembly of a coil frame used in a force balance acceleration sensor currently used to monitor acceleration is difficult and slow, the present invention proposes an assembly method for the coil frame of a force balance acceleration sensor, which can quickly assemble the parts of the coil frame into a whole.

[0004] The technical means adopted by the present invention to solve the above problems are: an assembly method of a coil frame of a force balance acceleration sensor, the first step is to clamp the coil from the front and rear sides using a front clamping plate and a rear clamping plate; the second step is to assemble the lower insulating pad, the pendulum pad or the metal pad, and the upper insulating pad to one end of the coil in sequence, and then clamp it using an upper clamping plate; the third step is to assemble the lower insulating pad, the metal pad or the pendulum pad, and the upper insulating pad to the other end of the coil in sequence, and then clamp it using a lower clamping plate; the fourth step is to use a push plate to pass through the upper clamping plate or the lower clamping plate to bend the claws of the coil. Each step uses clamping plates to clamp to prevent the coil frame from loosening during assembly.

[0005] Furthermore, after both ends of the coil frame are completely assembled and the upper clamping plate and the lower clamping plate are assembled, magnets with different polarities are placed at both ends of the coil frame to clamp the coil frame. The coil frame is clamped by the suction force of the magnets.

[0006] Furthermore, the sides of the front and rear plates facing each other are provided with positioning platforms protruding in opposite directions, which are used to clamp the coil of the coil frame; the sides of the front and rear plates facing each other are also provided with avoidance platforms at positions obliquely above the positioning platforms, which are used to accommodate the pendulum of the coil frame. During assembly, the positioning platforms of the front and rear plates are respectively inserted into the two sides of the coil, and the coil is positioned between the front and rear plates, so as to facilitate the assembly of other components at the upper and lower ends of the coil.

[0007] Furthermore, the positioning platforms of the front and rear plates are provided with pin holes, and the two ends of the fixing pins are respectively inserted into the pin holes of the front and rear plates after passing through the coil. The fixing pins cooperate with the positioning platform and the pin holes to better position the coil.

[0008] Furthermore, the sides of the upper clamping plate and the lower clamping plate facing each other are provided with grooves for accommodating the structures at both ends of the coil frame, and the grooves are provided with avoidance grooves for accommodating the coil claws and avoidance holes for the platinum wire to pass through, so as to avoid damaging the structure of the coil frame.

[0009] Furthermore, the upper clamping plate and the lower clamping plate are each provided with an avoidance hole and two avoidance grooves, and the two avoidance grooves are respectively located on both sides of the avoidance hole.

[0010] Furthermore, the avoidance hole is a through hole extending to one end of the upper clamping plate or the lower clamping plate, which is convenient for processing and assembly.

[0011] Furthermore, both ends of the upper clamping plate and the lower clamping plate are provided with push holes extending to the avoidance groove, and the push plate passes through the push holes and then the push claws bend it.

[0012] Furthermore, the two push plates push the claws on both sides of the coil toward each other from the push holes at both ends of the upper clamping plate or the lower clamping plate, and bend the claws on both sides synchronously, so as to ensure that the force on both sides of the coil is uniform.

[0013] Furthermore, a push pin is provided at the top of the push plate, and a guide hole is provided in the push hole for the push pin to pass through, and the push pin pushes the bent part of the claw after passing through the guide hole. The guide hole limits the position of the push pin, so that the push pin can accurately bend the claw.

[0014] Furthermore, two push pins are arranged on the top of one push plate to bend two claws at one time.

[0015] Furthermore, two guide holes are provided at each end of the upper clamping plate and the lower clamping plate, respectively aligned with a clamping claw.

[0016] The beneficial effects of the present invention are: 1. The present invention uses the front and rear clamping plates to clamp the coil and then assemble the parts at both ends of the coil. After one end is assembled, the upper clamping plate is used to clamp this end and then the other end is assembled, so as to avoid loosening of parts during assembly. After assembly, a push plate is used to pass through the upper or lower clamping plate to bend the claws of the coil, and the upper or lower clamping plate is used to guide the push plate to ensure the accuracy of the bending size.

[0017] 2. The present invention arranges magnets of different polarities at both ends of the assembled coil frame and uses the adsorption force of the magnets to clamp the coil frame, making it easier to adjust the adsorption force and avoiding damage to various components of the coil frame due to excessive clamping force.

[0018] 3. The present invention uses a push pin of a push plate to pass through the guide holes of the upper clamping plate and the lower clamping plate to bend the coil claws, which can prevent the coil skeleton from being loose during the bending process and ensure the accuracy of the bending position. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1; Figure 2 This is a schematic diagram of the explosion of the coil skeleton of Example 1; Figure 3 This is a schematic diagram of the rear splint structure of Example 1; Figure 4 This is a schematic diagram of the front plate structure of Example 1; Figure 5 This is a schematic diagram of the upper splint structure of Example 1; Figure 6 for Figure 5 Schematic diagrams from different angles; Figure 7 for Figure 6 Schematic cross-sectional view; Figure 8 The following is a schematic diagram of the structure of a splint in an embodiment; Fig. 9 for Figure 8 Schematic diagrams from different angles; Fig.10 for Fig. 9 Schematic cross-sectional view; In the figure: 1. coil frame, 11. coil, 111. claw, 12. lower insulating pad, 13. pendulum pad, 131. pendulum, 14. upper insulating pad, 15. metal pad, 16. platinum wire, 2. rear splint, 21. positioning table, 22. pin hole, 23. avoidance table, 3. front splint, 4. upper splint, 41. push hole, 42. guide hole, 43. avoidance groove, 44. avoidance hole, 45. groove, 5. lower splint, 6. fixing pin, 7. push plate, 71. push pin. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings. The accompanying drawings are only for illustrative purposes and are only schematic diagrams, not actual pictures, and cannot be understood as limiting the present patent; in order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; it is understandable to those skilled in the art that some well-known structures and their descriptions in the accompanying drawings may be omitted. Embodiment 1

[0021] A method for assembling a coil frame of a force balance acceleration sensor, such as Figure 2As shown, the coil skeleton 1 in this embodiment includes a coil 11 wound with wire, and four claws 111 are respectively provided at both ends of the coil 11, and a lower insulating pad 12, a pendulum pad 13 and an upper insulating pad 14 are sequentially embedded in the claws 111 at one end from near to far, and a lower insulating pad 12, a metal pad 15 and an upper insulating pad 14 are sequentially provided in the claws 111 at the other end from near to far, wherein the pendulum pad 13 and the metal pad 15 are both provided with a platinum wire 16, and a pendulum 131 is provided at one end of the pendulum pad 13, and after the two ends of the coil skeleton 1 are assembled, they are squeezed and pressed, and then the claws 111 of the coil 11 are bent to fix the positions of each pad.

[0022] like Figure 1 As shown, the assembly process is as follows: In the first step, the front clamping plate 3 and the rear clamping plate 2 clamp the coil 11 from the front and back sides of the coil 11 respectively. In the second step, the lower insulating pad 12, the pendulum pad 13 and the upper insulating pad 14 at one end of the coil 11 are assembled in sequence, or the lower insulating pad 12, the metal pad 15 and the upper insulating pad 14 can be assembled first, and preferably, the assembly end is facing upward, and the components are loaded into the end of the coil 11 from top to bottom. After the assembly is completed, the upper clamping plate 4 is used to clamp the coil 11 and the assembled components from this end, and then the assembled part 180 is assembled. o Flip. The third step is to assemble the lower insulating pad 12, the metal pad 15 and the upper insulating pad 14, or the lower insulating pad 12, the pendulum pad 13 and the upper insulating pad 14, at the other end of the coil 11 in sequence, and then clamp the parts at this end with the lower clamp 5. In order to ensure the compactness of each component, magnets with different polarities can be set on the outside of the upper clamp 4 and the lower clamp 5, and the coil skeleton 1 can be clamped by the adsorption force of the magnets. The fourth step is to use two push plates 7 to pass through the two ends of the upper clamp 4 or the lower clamp 5 respectively, extend into the coil skeleton 1, and bend the claws 111 on both sides of the coil 11 synchronously. You can use two push plates 7 to bend the claws 111 at both ends of the coil 11 in two times, or you can use four push plates 7 to bend the four claws 111 synchronously in sequence.

[0023] Specifically, Figure 3 and Figure 4 As shown, the rear plate 2 and the front plate 3 are provided with a positioning platform 21 on the sides facing each other, a pin hole 22 is provided in the positioning platform 21, and an avoidance platform 23 is provided at the upper side of the positioning platform 21, and two ends of a fixing pin 6 are respectively inserted into the pin holes 22 of the rear plate 2 and the front plate 3, and the positioning platforms 21 of the rear plate 2 and the front plate 3 are respectively inserted into the middle hole of the coil 11 to position the coil 11. The avoidance grooves 43 of the rear plate 2 and the front plate 3 are matched with each other to accommodate the pendulum 131.

[0024] like Figure 5-Figure 10As shown, the upper clamping plate 4 and the lower clamping plate 5 are provided with grooves 45 on the sides facing each other, which are used to accommodate the structures at both ends of the coil skeleton 1. In order to facilitate processing, in this embodiment, as shown in FIG. Figure 6 and Fig. 9 As shown, the grooves 45 are all configured as through grooves that penetrate the entire surface. Figure 6 , Figure 7 , Fig. 9 and Fig.10 As shown, an avoidance groove 43 and an avoidance hole 44 are also provided in the groove 45. There is one avoidance hole 44 in one groove, and there are two avoidance grooves 43, which are located on both sides of the avoidance hole 44. The avoidance hole 44 is a through hole for the platinum wire 16 to pass through. In order to facilitate processing, in this embodiment, the avoidance hole 44 is set to extend to an end surface of the upper clamping plate 4 or the lower clamping plate 5. The claws 111 of the coil 11 extend into the avoidance groove 43, and the two claws 111 on the same side are located in one avoidance groove 43. In this embodiment, in order to facilitate processing, the avoidance groove 43 is also designed as a through hole.

[0025] like Figure 6 , Figure 7 , Fig. 9 and Fig.10 As shown, both end surfaces of the upper clamping plate 4 and the lower clamping plate 5 are provided with push holes 41 opened toward the avoidance groove 43, and each push hole 41 is further provided with two guide holes 42, and each guide hole 42 is aligned with the bent position of the clamping claw 111.

[0026] like Figure 1 As shown, two push pins 71 are provided at one end of the push plate 7. When assembling, the push plate 7 is inserted into the push hole 41. After a push pin 71 passes through a guide hole 42, it pushes a claw 111 to bend it. One push plate 7 bends two claws 111 on the same side at one time. A coil frame 1 has eight claws 111 in total and needs to be pushed four times. An upper clamping plate 4 and a lower clamping plate 5 are each provided with two push holes 41. It can be bent by using one push plate 7 with two claws 111 each time. Preferably, as shown in FIG. Figure 1 As shown, two push plates 7 can be used to bend four claws 111 from both ends of the upper clamping plate 4 or the lower clamping plate 5 at the same time. After the four claws at the same end are bent, the four claws at the other end are bent synchronously. In this way, during the bending process, because force is applied from both sides of the coil 11 at the same time, it can avoid one side being subjected to too much force to cause deviation or even fall apart, and the bending force on both sides can be guaranteed, thereby improving the quality of the coil skeleton 1. Embodiment 2

[0027] The assembly method of this embodiment is the same as the above embodiment, but the structure of the front clamping plate 3 and the rear clamping plate 2 can be changed, such as the front clamping plate 3 and the rear clamping plate 2 are not provided with the positioning platform 21, and only the fixing pins 6 inserted into the pin holes 22 at both ends are used to position the coil 11. The problem is that, since the height of the positioning platform 21 of the embodiment 1 can be made relatively small, its outer peripheral size can be closer to the inner hole size of the coil 11, so the fit is higher, and it is also convenient to install and remove the coil 11. If only the fixing pin 6 is used, it is best to design the fixing pin 6 into a structure with different outer peripheral sizes at various locations, so that the outer peripheral size of the part in contact with the coil 11 is larger, and the sizes of other locations are smaller, so as to facilitate installation and removal.

[0028] Of course, the fixing pin 6 may not be used, and the coil 11 may be positioned only by the positioning platform 21. In this case, there may also be a problem that there is no fixing pin 6 between the front clamping plate 3 and the rear clamping plate 2 as a constraint, and it is possible that the front clamping plate 3 and the rear clamping plate 2 may be misaligned due to improper force in subsequent operations, resulting in the inability to properly clamp the coil 11. Embodiment 3

[0029] The assembly method of this embodiment is the same as that of the first embodiment, and the structure of the front clamping plate 3, the rear clamping plate 2, the upper clamping plate 4 and the lower clamping plate 5 is also changed. In this embodiment, through holes or threaded holes can be set on the front clamping plate 3, the rear clamping plate 2, the upper clamping plate 4 and the lower clamping plate 5. During the assembly process, bolts are passed through the through holes or threaded holes to lock the front clamping plate 3, the rear clamping plate 2, the upper clamping plate 4 and the lower clamping plate 5 into a whole, which is less likely to loosen during the bending operation of the claw 111.

[0030] The above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Technicians in the relevant technical field may make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also fall within the protection scope of the present invention, and the protection scope of the present invention should be defined by the claims.

Claims

1. A method for assembling a coil skeleton of a force balance acceleration sensor, characterized in that: The first step is to clamp the coil (11) from the front and rear sides using a front clamping plate (3) and a rear clamping plate (2); the second step is to assemble the lower insulating pad (12), the pendulum pad (13) or the metal pad (15), and the upper insulating pad (14) to one end of the coil (11) in sequence, and then clamp them using an upper clamping plate (4); the third step is to assemble the lower insulating pad (12), the metal pad (15) or the pendulum pad (13), and the upper insulating pad (14) to the other end of the coil (11) in sequence, and then clamp them using a lower clamping plate (5); the fourth step is to use a push plate (7) to pass through the upper clamping plate (4) or the lower clamping plate (5) to bend the claw (111) of the coil (11).

2. The method for assembling a coil frame of a force balance acceleration sensor according to claim 1, characterized in that: After both ends of the coil frame (1) are completely assembled and the upper clamping plate (4) and the lower clamping plate (5) are assembled, magnets with different polarities are respectively placed at both ends of the coil frame (1) to clamp the coil frame (1).

3. The method for assembling a coil frame of a force balance acceleration sensor according to claim 1, characterized in that: Positioning platforms (21) protruding in opposite directions are provided on the sides of the front clamping plate (3) and the rear clamping plate (2) facing each other, and are used to clamp the coil (11) of the coil frame (1); and avoidance platforms (23) are also provided on the sides of the front clamping plate (3) and the rear clamping plate (2) facing each other, and are located at a position obliquely above the positioning platforms (21), and are used to accommodate the pendulum (131) of the coil frame (1).

4. The method for assembling a coil frame of a force balance acceleration sensor as claimed in claim 3, characterized in that: A pin hole (22) is also provided in the positioning platform (21) of the front clamping plate (3) and the rear clamping plate (2). A fixing pin (6) is also provided which passes through the coil (11) and has its two ends inserted into the pin holes (22) of the front clamping plate (3) and the rear clamping plate (2) respectively.

5. The method for assembling a coil frame of a force balance acceleration sensor according to claim 1, characterized in that: The upper clamping plate (4) and the lower clamping plate (5) are provided with grooves (45) for accommodating the structures at both ends of the coil frame (1) on the sides facing each other, and the grooves (45) are provided with avoidance grooves (43) for accommodating the claws (111) of the coil (11), and avoidance holes (44) for the platinum wire (16) to pass through.

6. The method for assembling a coil frame of a force balance acceleration sensor according to claim 5, characterized in that: The upper clamping plate (4) and the lower clamping plate (5) are each provided with an avoidance hole (44) and two avoidance grooves (43), and the two avoidance grooves (43) are respectively located on both sides of the avoidance hole (44); the avoidance hole (44) is a through hole extending to one end of the upper clamping plate (4) or the lower clamping plate (5).

7. The method for assembling a coil frame of a force balance acceleration sensor according to claim 5, characterized in that: Both ends of the upper clamping plate (4) and the lower clamping plate (5) are provided with push holes (41) extending to the avoidance groove (43), and the push plate (7) passes through the push hole (41) and the rear push claw (111) is bent.

8. The method for assembling a coil frame of a force balance acceleration sensor according to claim 7, characterized in that: The two push plates (7) push the claws (111) on both sides of the coil (11) toward each other from the push holes (41) at both ends of the upper clamping plate (4) or the lower clamping plate (5) at the same time, and bend the claws (111) on both sides synchronously.

9. The method for assembling a coil frame of a force balance acceleration sensor according to claim 7, characterized in that: A push pin (71) is also provided at the top end of the push plate (7), and a guide hole (42) for the push pin (71) to pass through is also provided in the push hole (41). After the push pin (71) passes through the guide hole (42), it pushes the bent portion of the clamping claw (111).

10. The method for assembling a coil frame of a force balance acceleration sensor according to claim 9, characterized in that: Two push pins (71) are provided on the top of a push plate (7), two guide holes (42) are provided at each end of the upper clamping plate (4) and the lower clamping plate (5), and a push pin (71) passes through a guide hole (42) and is aligned with a claw (111).

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