CN219759382U - Positioning equipment for capacitor installation - Google Patents

Abstract

A positioning device for capacitor installation comprises a storage plate, a fixed seat, a linkage piece, a clamping mechanism and a driving mechanism; the object placing plate is horizontally arranged, and a vertically arranged supporting frame is arranged on the object placing plate; the fixed seat is horizontally arranged above the object placing plate; the linkage piece is rotationally connected with the fixed seat and can rotate around the W axis direction; the clamping mechanism is rotationally connected with the linkage piece and can rotate around the theta axis direction; the driving mechanism is arranged on the supporting frame and is in driving connection with the fixed seat; when the electric circuit board is used, the electric circuit board is placed on the object placing plate, the capacitor is installed on the clamping mechanism, the angle position of the capacitor is adjusted through the rotation of the linkage piece and the clamping mechanism, the needle angle on the capacitor is accurately aligned with a specific point on the electric circuit board, and finally the driving mechanism is started to drive the electric circuit board which is fixed on the object placing plate to be close to the object placing plate along the vertical direction, and the electric circuit board is installed.

Description

Positioning equipment for capacitor installation

Technical Field

The utility model belongs to the technical field of capacitor installation, and particularly relates to positioning equipment for capacitor installation.

Background

Capacitors are commonly used electronic devices on circuit boards, where they play an important role in circuits such as tuning, bypass, coupling, filtering, etc.; in the process of installing the capacitor on the circuit board, the capacitor is generally supported manually by manpower and is welded and installed on the circuit board, the capacitor is easy to fall off in the whole process, and the installation efficiency is low.

For this reason, in the prior art, auxiliary installation is generally required by means of a positioning device, for example, in the patent application No. 2021227595571, a positioning device for installing a capacitor is mentioned, and the positioning device can clamp and move the capacitor to a corresponding position of a circuit board, so that quick positioning and installation of the capacitor are realized, and the installation efficiency is improved.

However, in the actual operation process, after the capacitor is placed on the positioning device, the capacitor still has the possibility of offset, and because the positioning device cannot adjust the angular position of the capacitor, the pins of the capacitor cannot accurately correspond to the specific points on the circuit board after the capacitor is close to the circuit board, so that the quality of the finished product is poor.

Disclosure of Invention

(one) solving the technical problems

The utility model provides positioning equipment for capacitor installation, which can adjust the angle position of a capacitor, so that pins of the capacitor can accurately correspond to specific points on a circuit board, and the quality of a finished product is ensured.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a positioning device for capacitor installation comprises a storage plate, a fixed seat, a linkage piece, a clamping mechanism and a driving mechanism; the object placing plate is horizontally arranged, and a vertically arranged supporting frame is arranged on the object placing plate; the fixed seat is horizontally arranged above the object placing plate; the linkage piece is rotationally connected with the fixed seat and can rotate around the W axis direction; the clamping mechanism is rotationally connected with the linkage piece and can rotate around the theta axis direction; the driving mechanism is arranged on the supporting frame and is in driving connection with the fixing seat so as to drive the fixing seat to move along the vertical direction.

Preferably, the device further comprises an adjusting bolt, a rotating groove designed towards the X-axis direction is formed in the fixing seat, and a rotating shaft which is rotationally connected with the rotating groove is arranged on the linkage piece; the fixed seat is also provided with an adjusting hole communicated with the rotating groove, the adjusting bolt is in threaded connection with the adjusting hole, and one end of the adjusting bolt can penetrate through the adjusting hole and is abutted to the rotating shaft so as to limit the linkage piece to rotate around the W axis direction.

Preferably, a first angular scale is arranged on the fixing seat, and a first indicator corresponding to the first angular scale is arranged on the rotating shaft.

Preferably, the rotary chute is further provided with a limiting bolt, a chute communicated with the rotary chute is further arranged in the fixing seat, and the inner diameter of the chute is larger than that of the rotary chute; one end of the rotating shaft extends into the sliding groove, and a sliding block which is in sliding fit with the sliding groove is arranged at the end of the rotating shaft, so that the clamping mechanism can be far away from or close to the fixed seat along the X-axis direction; the fixing seat is also provided with a limiting hole communicated with the sliding groove, the limiting bolt is in threaded connection with the limiting hole, and one end of the limiting bolt can penetrate through the limiting hole and block the sliding block.

Preferably, the device further comprises an adjusting nut, and the linkage piece is provided with a U-shaped block; the clamping mechanism comprises a ferrule, a rotating block and a fastening assembly, wherein the fastening assembly is arranged on the ferrule and used for fixing a capacitor; the rotating block is fixedly connected with the ferrule, a rotating rod which is rotationally connected with the U-shaped block is arranged on the rotating block, a stud which penetrates through the U-shaped block is arranged at the first end of the rotating rod, and the adjusting nut is in threaded connection with the stud and is used for limiting the clamping mechanism to rotate around the theta axis direction.

Preferably, a second angle scale is arranged on the U-shaped block, and a second indicator corresponding to the second angle scale is arranged at the second end of the rotating rod.

Preferably, the fastening assembly comprises a push rod and a spring, the push rod is in sliding connection with the ferrule and extends towards the center direction of the ferrule, and a stop block is arranged at one end of the push rod, which is close to the center of the ferrule; the spring is sleeved on the ejector rod, one end of the spring is abutted against the stop block, and the other end of the spring is abutted against the inner wall of the ferrule; the ejector rods are arranged in a plurality and are arranged on the ferrule in a circumferential array, and the springs are provided with a plurality of ejector rods in one-to-one correspondence.

Preferably, a rubber pad is mounted on the stop block, and the rubber pad is used for abutting against the capacitor.

Preferably, the circuit board is characterized by further comprising a enclosing mechanism, wherein the enclosing mechanism comprises a first enclosing plate and a second enclosing plate which are symmetrically arranged, the first enclosing plate and the second enclosing plate are both slidably arranged on the storage plate and can be mutually close to or far away from each other along the Y-axis direction so as to be used for fixing and loosening the circuit board.

Preferably, the enclosing mechanism further comprises a driving nut, and a first support plate and a second support plate are symmetrically arranged on two sides of the object placing plate; a guide rod designed along the Y-axis direction is further connected between the first support plate and the second support plate, and the first coaming and the second coaming are both in sliding connection with the guide rod; the first coaming is also provided with a first screw rod parallel to the guide rod, and the first screw rod penetrates through the first support plate; the second coaming is also provided with a second screw rod parallel to the guide rod, and the second screw rod penetrates through the second support plate; the driving nuts are provided with two driving nuts and are respectively rotatably arranged on the first support plate and the second support plate, and the two driving nuts are respectively in threaded connection with the first screw rod and the second screw rod.

Preferably, the driving mechanism comprises a hand wheel, a driving screw, a guide rail and a guide block, wherein the guide rail is vertically arranged on the supporting frame, the guide block is slidably arranged on the guide rail, and the fixing seat is arranged on the guide block; the driving screw is vertically and rotatably arranged on the supporting frame and is in threaded connection with the guide block; the hand wheel is installed on the driving screw rod and used for driving the driving screw rod to rotate.

(III) beneficial effects

According to the positioning equipment for capacitor installation, the bottom plate is designed for placing the circuit board, the clamping mechanism is designed for fixing the capacitor, and the linkage piece is designed to play a role of combining the fixing seat and the clamping mechanism, so that the angular position of the capacitor can be adjusted in two directions, the positioning precision of the capacitor is improved, and the quality of a finished product is ensured.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate and together with the embodiments of the utility model and do not constitute a limitation to the utility model, and in which:

FIG. 1 shows a schematic overall structure of the present utility model;

FIG. 2 shows a top view of FIG. 1;

FIG. 3 shows a cross-sectional view A-A of FIG. 2;

FIG. 4 shows a partial schematic diagram of the present utility model;

FIG. 5 shows a partial schematic diagram of a second embodiment of the present utility model;

fig. 6 shows a front view of fig. 5;

FIG. 7 shows a cross-sectional view B-B of FIG. 6;

fig. 8 shows an exploded view of fig. 5.

In the figure: 1 object placing plate, 10 supporting frame, 11 first supporting plate, 12 second supporting plate, 13 guide rod, 2 fixing seat, 21 rotating groove, 210 adjusting hole, 22 sliding groove, 220 limiting hole, 2k first angle scale, 3 linkage piece, 31 rotating shaft, 31k first indicator, 32 sliding block, 33U-shaped block, 33k second angle scale, 4 clamping mechanism, 41 ferrule, 42 rotating block, 421 rotating rod, 4210 stud, 421k second indicator, 43 fastening component, 431 ejector rod, 4311 stop, 4312 rubber pad, 432 spring, 5 driving mechanism, 51 hand wheel, 52 driving screw, 53 guide rail, 54 guide block, 6 adjusting bolt, 7 limiting bolt, 8 adjusting nut, 9 enclosing mechanism, 91 first enclosing plate, 910 first screw, 92 second enclosing plate, 920 second screw rod, 93 driving nut.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, a positioning device for installing a capacitor comprises a storage plate 1, a fixed seat 2, a linkage piece 3, a clamping mechanism 4 and a driving mechanism 5; the object placing plate 1 is horizontally arranged, and a vertically arranged supporting frame 10 is arranged on the object placing plate 1; the fixed seat 2 is horizontally arranged above the object placing plate 1; the linkage piece 3 is rotationally connected with the fixed seat 2 and can rotate around the W axis direction; the clamping mechanism 4 is rotationally connected with the linkage piece 3 and can rotate around the theta axis direction; the driving mechanism 5 is installed on the supporting frame 10 and is in driving connection with the fixing seat 2 so as to drive the fixing seat 2 to move along the vertical direction.

Specifically, when in use, the circuit board is firstly placed on the object placing plate 1, the capacitor is mounted on the clamping mechanism 4, then the rotation angle of the capacitor in the W axis direction is adjusted through the rotation of the linkage piece 3, the rotation angle of the capacitor in the theta axis direction is adjusted through the rotation of the clamping mechanism 4, so that the needle angle on the capacitor is accurately aligned with a specific point on the circuit board, and finally the driving mechanism 5 is started to drive the circuit board fixed on the object placing plate 1 to be close to the object placing plate along the vertical direction and complete the mounting.

In summary, the utility model designs the bottom plate for placing the circuit board, designs the clamping mechanism 4 for fixing the capacitor, and designs the linkage piece 3 to play a role of combining the fixing seat 2 and the clamping mechanism 4, thereby realizing the adjustment of the angular position of the capacitor in two directions, improving the positioning precision of the capacitor and ensuring the quality of the finished product.

Referring to fig. 1 and 5-8, in order to facilitate the rotation angle of the capacitor in the W-axis direction, the utility model further comprises an adjusting bolt 6, a rotating slot 21 designed towards the X-axis direction is arranged in the fixing seat 2, and a rotating shaft 31 rotationally connected with the rotating slot 21 is arranged on the linkage piece 3; the fixing seat 2 is further provided with an adjusting hole 210 communicated with the rotating groove 21, the adjusting bolt 6 is in threaded connection with the adjusting hole 210, and one end of the adjusting bolt 6 can penetrate through the adjusting hole 210 and abut against the rotating shaft 31 so as to limit the linkage piece 3 to rotate around the W axis direction.

Specifically, when the rotation angle of the capacitor needs to be adjusted, the adjusting bolt 6 is reversely screwed to be separated from the rotating shaft 31, and then the linkage piece 3 is rotated; when the rotational position is determined, the adjusting bolt 6 is screwed forward to abut against the rotating shaft 31, so that the rotating shaft 31 is restricted from moving and rotating.

Referring to fig. 8, the fixing base 2 is provided with a first angular scale 2k, the rotating shaft 31 is provided with a first indicator 31k corresponding to the first angular scale 2k, and the design is convenient for a user to observe, so that the user can finely adjust the rotation position of the capacitor in the W direction, and the positioning precision is further improved.

Referring to fig. 1 and fig. 5-fig. 8, considering that the position of the circuit board in the X-axis direction may be shifted after the circuit board is placed on the placement board 1, at this time, a specific point on the circuit board cannot accurately correspond to the clamping mechanism 4, so that the capacitor cannot be normally installed; in order to solve the problem, the utility model also comprises a limit bolt 7, a chute 22 communicated with the rotary groove 21 is arranged in the fixed seat 2, and the inner diameter of the chute 22 is larger than the inner diameter of the rotary groove 21; one end of the rotating shaft 31 extends into the chute 22, and a sliding block 32 which is in sliding fit with the chute 22 is arranged on the end, so that the clamping mechanism 4 can be far away from or close to the fixed seat 2 along the X-axis direction; the fixing seat 2 is also provided with a limit hole 220 communicated with the chute 22, the limit bolt 7 is in threaded connection with the limit hole 220, and one end of the limit bolt 7 can penetrate through the limit hole 220 and block the sliding block 32.

Conventionally, the adjusting bolt 6 and the limiting bolt 7 are both in a tightening state, at this time, the adjusting bolt 6 can limit the movement and rotation of the rotating shaft 31, and the limiting bolt 7 can only limit the movement of the rotating shaft 31; therefore, in the actual operation process, according to different requirements, different operations need to be performed, which are specifically as follows:

firstly, when only the rotation of the adjusting shaft 31 is needed, the limiting bolt 7 is kept in a locking state, then the adjusting bolt 6 is unscrewed, at the moment, the rotation can rotate around the rotating groove 21, but the sliding block 32 is limited by the limiting bolt 7 and cannot move along the sliding groove 22; the adjusting bolt 6 is screwed after the rotating shaft 31 rotates to a proper position.

Secondly, when the position of the clamping mechanism 4 needs to be adjusted in the X-axis direction to be corresponding to the circuit board, namely, when the rotating shaft 31 needs to be adjusted to stretch, the limit bolt 7 is unscrewed to release the limit on the sliding block 32, then the adjusting bolt 6 is unscrewed to release the limit on the rotating shaft 31, at this time, the linkage piece 3 can be moved along the X-axis direction, the rotating shaft 31 stretches to a proper position, and then the adjusting bolt 6 is screwed.

It should be noted that, in the second operation, it is necessary to ensure that the first indicator 31k on the rotating shaft 31 is always aligned with the corresponding first scale during the process of extending the rotating shaft 31 to the appropriate position; therefore, the rotation angle of the rotation shaft 31 is generally adjusted, and then the telescopic length of the rotation shaft 31 is adjusted.

In summary, the above design makes the rotation angle and the telescopic length of the rotating shaft 31 adjustable, so as to adjust the positions of the capacitors on the clamping mechanism 4, thereby further improving the practicability and the positioning accuracy.

Referring to fig. 1 and 5-8, in order to facilitate the rotation angle of the capacitor in the θ axis direction, the utility model further includes an adjusting nut 8, and the linkage member 3 is provided with a U-shaped block 33; the clamping mechanism 4 comprises a ferrule 41, a rotating block 42 and a fastening assembly 43, the fastening assembly 43 being mounted on the ferrule 41 and being used for fixing the capacitor; the rotating block 42 is fixedly connected with the ferrule 41, a rotating rod 421 which is rotationally connected with the U-shaped block 33 is arranged on the rotating block 42, a stud 4210 which penetrates through the U-shaped block 33 is arranged on the first end of the rotating rod 421, and the adjusting nut 8 is in threaded connection with the stud 4210 so as to be used for limiting the clamping mechanism 4 to rotate around the theta axis direction.

Specifically, in general, the adjusting nut 8 is in a tightened state, and at this time, the adjusting nut 8 abuts against one side of the U-shaped block 33 to fix the rotating rod 421, so as to prevent the clamping mechanism 4 from rotating;

when the swing angle of the capacitor needs to be adjusted, the adjusting nut 8 is unscrewed to contact the limitation of the rotating rod 421, then the rotating block 42 is driven to rotate around the rotating rod 421, and after the capacitor rotates to a proper position in the theta axis direction, the adjusting nut 8 is screwed again.

Referring to fig. 5-6, the u-shaped block 33 is provided with a second angle scale 33k, the second end of the rotating rod 421 is provided with a second indicator 421k corresponding to the second angle scale 33k, and the design is convenient for a user to observe, so that the user can finely adjust the rotation position of the capacitor in the theta direction, and the positioning precision is further improved.

Referring to fig. 5-8, the fastening assembly 43 is various, and in order to make the fastening assembly 43 fix capacitors with different specifications, in the present utility model, the fastening assembly 43 includes a push rod 431 and a spring 432, the push rod 431 is slidably connected with the ferrule 41 and extends toward the center of the ferrule 41, and a stop 4311 is disposed at one end of the push rod 431 near the center of the ferrule 41; the spring 432 is sleeved on the ejector rod 431, one end of the spring 432 is abutted against the stop block 4311, and the other end of the spring 432 is abutted against the inner wall of the ferrule 41; the plurality of ejector rods 431 are circumferentially arranged on the ferrule 41, and the plurality of springs 432 are in one-to-one correspondence with the plurality of ejector rods 431.

Specifically, in general, the spring 432 is in an initial state, and one ends of the plurality of ejector rods 431 close to the center of the ferrule 41 are mutually closed;

when the capacitor needs to be installed, the capacitor is placed in the ferrule 41 and clamped into the enclosing center of the plurality of ejector rods 431, in the process, the capacitor extrudes the plurality of ejector rods 431, so that the spring 432 stores energy and compresses, the capacitor is fixed by the plurality of ejector rods 431 under the action of the reaction force of the spring 432, and at the moment, a user can adjust the angle position of the capacitor according to actual requirements and then install the capacitor.

Therefore, the compression degree of the spring 432 is related to the outer diameter of the capacitor, and the plurality of ejector rods 431 can clamp and fix capacitors with different specifications within the recovery range of the spring 432, so that the adaptability of the clamping mechanism 4 is improved.

Referring to fig. 5-8, a rubber pad 4312 is mounted on the stopper 4311, and the rubber pad 4312 is used for abutting against the capacitor.

Specifically, the rubber pad 4312 can prevent the ejector rod 431 from contacting the capacitor, so that a certain buffering and anti-skid effect can be achieved, and the possibility of damage and falling of the capacitor is reduced;

on the other hand, since the rubber pad 4312 has a certain elasticity, the rubber pad 4312 is changed when fixing capacitors of different specifications, and the circumferential outer surface of the capacitor is always tightly adhered.

Referring to fig. 2-4, in order to facilitate the installation of the circuit board, the utility model further comprises a enclosing mechanism 9, wherein the enclosing mechanism 9 comprises a first enclosing plate 91 and a second enclosing plate 92 which are symmetrically arranged, and the first enclosing plate 91 and the second enclosing plate 92 are slidably arranged on the object placing plate 1 and can be mutually close to or far away from each other along the Y-axis direction for fixing and releasing the circuit board.

Specifically, when in use, the circuit board is placed on the object placing plate 1 and is positioned between the first enclosing plate 91 and the second enclosing plate 92, and then the first enclosing plate 91 and the second enclosing plate 92 are controlled to be close to each other, so that the circuit board can be fixed;

when the position of the circuit board needs to be adjusted in the Y-axis direction, the first board 91 and the second board 92 are controlled to move in the Y-axis negative direction or the Y-axis positive direction at the same time while keeping the distance between the first board 91 and the second board 92 unchanged.

In summary, the cooperation design of the first enclosing plate 91 and the second enclosing plate 92 is convenient for installing a circuit board, and the position of the circuit board in the Y-axis direction can be adjusted, so that the capacitor can also correspond to the circuit board in the Y-axis direction, and the installation accuracy of the capacitor is further improved.

Referring to fig. 2-4, in order to control the sliding of the first enclosing plate 91 and the second enclosing plate 92 conveniently, a screw motor may be installed on the object placing plate 1 for driving, but in order to reduce the cost, in the present utility model, the enclosing mechanism 9 further includes a driving nut 93, and the two sides of the object placing plate 1 are symmetrically provided with a first supporting plate 11 and a second supporting plate 12; a guide rod 13 designed along the Y-axis direction is also connected between the first support plate 11 and the second support plate 12, and the first coaming 91 and the second coaming 92 are both in sliding connection with the guide rod 13; the first coaming 91 is further provided with a first screw rod 910 parallel to the guide rod 13, and the first screw rod 910 penetrates through the first support plate 11; the second coaming 92 is also provided with a second screw 920 parallel to the guide rod 13, and the second screw 920 penetrates through the second support plate 12; the driving nuts 93 are provided with two driving nuts and are rotatably mounted on the first support plate 11 and the second support plate 12, respectively, and the two driving nuts 93 are in threaded connection with the first screw 910 and the second screw 920, respectively.

Specifically, when in use, the first screw 910 can be driven by rotating the driving nut 93 on the first support plate 11, and the first coaming 91 will move along the Y-axis direction under the restriction of the guide rod 13; similarly, when the drive nut 93 on the second bracket 12 is turned, the second shroud 92 will also move in the Y-axis direction.

The user can fix the circuit board on the specific position of Y-axis direction by adjusting the positions of the first coaming 91 and the second coaming 92 in Y-axis direction according to actual demands.

Referring to fig. 1 to 4, the driving mechanism 5 is various, for example, an electric cylinder structure, a screw motor structure, etc. may be used, which is not limited in the present utility model, but for convenience of understanding, in the embodiment of the present utility model, the driving mechanism 5 includes a hand wheel 51, a driving screw 52, a guide rail 53 and a guide block 54, the guide rail 53 is vertically installed on the support frame 10, the guide block 54 is slidably installed on the guide rail 53, and the fixing base 2 is installed on the guide block 54; the driving screw 52 is vertically and rotatably installed on the supporting frame 10, and the driving screw 52 is in threaded connection with the guide block 54; the hand wheel 51 is mounted on the driving screw 52 for driving the driving screw 52 to rotate; the user rotates the hand wheel 51 forward or backward to drive the driving screw 52 to rotate, so that the guide block 54 moves along the direction of the guide rail 53, and the fixing seat 2 mounted on the guide block 54 is further away from or close to the storage plate 1.

It should also be noted that while embodiments of the present utility model have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made hereto without departing from the spirit and principles of the present utility model.

Claims (10)

1. Positioning equipment for capacitor installation, including the thing board (1) of putting of level setting, install vertical setting support frame (10) on putting thing board (1), its characterized in that still includes:

the fixed seat (2) is horizontally arranged above the object placing plate (1);

the linkage piece (3), the linkage piece (3) is rotationally connected with the fixed seat (2) and can rotate around the direction of a W shaft, and the W shaft is collinear with the axial lead of the fixed seat (2);

the clamping mechanism (4) is rotationally connected with the linkage piece (3) and can rotate around the theta axis, and the theta axis is horizontally designed and is perpendicular to the W axis;

the driving mechanism (5) is arranged on the supporting frame (10) and is in driving connection with the fixing seat (2) so as to drive the fixing seat (2) to move along the vertical direction.

2. The positioning device for capacitor installation according to claim 1, further comprising an adjusting bolt (6), wherein a rotating groove (21) designed towards the X-axis direction is arranged in the fixing seat (2), and a rotating shaft (31) rotationally connected with the rotating groove (21) is arranged on the linkage piece (3); the fixed seat (2) is also provided with an adjusting hole (210) communicated with the rotating groove (21), the adjusting bolt (6) is in threaded connection with the adjusting hole (210), and one end of the adjusting bolt (6) can penetrate through the adjusting hole (210) and abut against the rotating shaft (31) so as to limit the linkage piece (3) to rotate around the W axis direction.

3. The positioning device for capacitor installation according to claim 2, wherein the fixing base (2) is provided with a first angular scale (2 k), and the rotating shaft (31) is provided with a first indicator (31 k) corresponding to the first angular scale (2 k).

4. The positioning device for capacitor installation according to claim 2, further comprising a limit bolt (7), wherein a chute (22) for connecting the rotary groove (21) is further arranged in the fixing seat (2), and the inner diameter of the chute (22) is larger than the inner diameter of the rotary groove (21); one end of the rotating shaft (31) extends into the sliding groove (22), and a sliding block (32) which is in sliding fit with the sliding groove (22) is arranged on the end of the rotating shaft, so that the clamping mechanism (4) can be far away from or close to the fixed seat (2) along the X-axis direction; the fixing seat (2) is also provided with a limiting hole (220) communicated with the sliding groove (22), the limiting bolt (7) is in threaded connection with the limiting hole (220), and one end of the limiting bolt (7) can penetrate through the limiting hole (220) and block the sliding block (32).

5. A positioning device for mounting a capacitor according to claim 1, further comprising an adjusting nut (8), said linkage (3) being provided with a U-shaped block (33); the clamping mechanism (4) comprises a ferrule (41), a rotating block (42) and a fastening assembly (43), wherein the fastening assembly (43) is mounted on the ferrule (41) and used for fixing a capacitor; the rotating block (42) is fixedly connected with the ferrule (41), the rotating block (42) is provided with a rotating rod (421) which is rotationally connected with the U-shaped block (33), the first end of the rotating rod (421) is provided with a stud (4210) penetrating through the U-shaped block (33), and the adjusting nut (8) is in threaded connection with the stud (4210) so as to be used for limiting the clamping mechanism (4) to rotate around the theta axis direction.

6. The positioning device for mounting a capacitor according to claim 5, wherein a second angular scale (33 k) is provided on the U-shaped block (33), and a second indicator (421 k) corresponding to the second angular scale (33 k) is provided on a second end of the rotating lever (421).

7. The positioning device for mounting a capacitor according to claim 5, wherein the fastening assembly (43) comprises a push rod (431) and a spring (432), the push rod (431) is slidably connected with the ferrule (41) and extends toward the center of the ferrule (41), and a stop block (4311) is arranged at one end of the push rod (431) close to the center of the ferrule (41); the spring (432) is sleeved on the ejector rod (431), one end of the spring (432) is abutted against the stop block (4311), and the other end of the spring (432) is abutted against the inner wall of the ferrule (41); the ejector rods (431) are arranged in a plurality and are arranged on the ferrule (41) in a circumferential array, and the springs (432) are arranged in a plurality and one-to-one correspondence with the plurality of ejector rods (431).

8. The positioning device for mounting a capacitor according to claim 7, wherein a rubber pad (4312) is mounted on the stopper (4311), and the rubber pad (4312) is used for abutting against the capacitor.

9. The positioning device for mounting a capacitor according to claim 1, further comprising a closing mechanism (9), wherein the closing mechanism (9) comprises a first shroud (91) and a second shroud (92) which are symmetrically arranged, and the first shroud (91) and the second shroud (92) are slidably arranged on the storage board (1) and can be moved close to or away from each other in the Y-axis direction for fixing and releasing the circuit board.

10. The positioning device for mounting a capacitor according to claim 9, wherein the enclosing mechanism (9) further comprises a driving nut (93), and a first support plate (11) and a second support plate (12) are symmetrically arranged on two sides of the object placing plate (1); a guide rod (13) designed along the Y-axis direction is further connected between the first support plate (11) and the second support plate (12), and the first coaming (91) and the second coaming (92) are both in sliding connection with the guide rod (13);

the first coaming (91) is also provided with a first screw rod (910) parallel to the guide rod (13), and the first screw rod (910) penetrates through the first support plate (11); the second coaming (92) is also provided with a second screw rod (920) parallel to the guide rod (13), and the second screw rod (920) penetrates through the second support plate (12); the driving nuts (93) are provided with two driving nuts and are respectively rotatably arranged on the first support plate (11) and the second support plate (12), and the two driving nuts (93) are respectively in threaded connection with the first screw rod (910) and the second screw rod (920).