Automatic assembling mechanism for rotary lead seal of water meter

Abstract

The invention discloses a water meter rotary lead seal automatic assembling mechanism which is used for enabling a lead seal lead wire to penetrate through a water meter shell hole and be inserted back into a lead seal hole position, finally, a lead seal upper cover is rotated to conduct mechanical locking, and a water meter positioning mechanism conducts accurate positioning on a water meter. The water meter lead seal positioning and feeding mechanism and the water meter positioning mechanism are oppositely mounted and are used for positioning the lead seal and pushing the lead seal to the water meter; the lead wire lower guiding mechanism is installed on the water meter positioning mechanism through a lower guiding connecting plate and plays a role in guiding the lead wire which does not penetrate into a meter shell hole. The lead wire upper guiding mechanism is installed on the side face of the water meter positioning mechanism, and the lead wire penetrating through the water meter hole position can move according to the path of the lead wire upper guiding mechanism. The lead wire pull-back mechanism is used for tensioning the lead wire penetrating through the lead sealing hole; and the pressing and tightening mechanism is used for controlling the curvature of the lead wire during assembly and tightening the lead sealing upper cover to complete assembly. According to the invention, high-efficiency and automatic lead sealing assembly of the soft lead wire can be realized, the production efficiency is improved, and the error-tolerant rate is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of intelligent assembly of water meters, and in particular to an automatic assembly mechanism for a rotary lead seal of a water meter. Background Art

[0002] The water meter lead seal is the last and most important step in the assembly of the water meter. It is a sign that the water meter has passed the calibration and ensures accurate water measurement. It is set to prevent water theft and leakage. Nowadays, most water meter manufacturers install the lead seal manually, which is time-consuming, labor-intensive and inefficient. At the same time, the plastic rotary lead seals used by most manufacturers are small in size, with an inner hole of only 2.1mm and a lead wire of only 0.3mm. Each time the lead wire is pierced, it is like threading a needle. After a long time, the operator will get eye fatigue, which greatly affects the delivery efficiency.

[0003] Patent CN106932619A proposes a U-shaped tube, the hole in the U-shaped tube is aligned with the lead seal, and the lead wire is passed through the guide tube and extended from the other end to achieve the purpose of fast threading of the lead wire. The patent proposes an auxiliary tool for lead seal installation, but it still has the following disadvantages: the number of labor is not reduced, the assembly operation steps are not simplified, and the production efficiency cannot be significantly improved. Moreover, the auxiliary tool is not suitable for the installation of water meter lead seals. The water meter hole is close to the shell, and the auxiliary tool will interfere with the water meter. Summary of the invention

[0004] Purpose of the invention: In view of the above problems, the purpose of the present invention is to provide an automatic assembly mechanism for a water meter rotary seal, so as to improve the efficiency of water meter assembly and fill the gap in the installation mechanism for soft wire seals.

[0005] Technical solution: A water meter rotary lead seal automatic assembly mechanism, comprising a workbench and a water meter positioning mechanism, a water meter lead seal positioning and feeding mechanism, a lead wire pulling mechanism, a lead wire lower guiding mechanism, a lead wire guiding mechanism, a pressing and tightening mechanism respectively installed thereon;

[0006] The water meter positioning mechanism and the water meter lead seal positioning and feeding mechanism are arranged at a relative interval, the lead wire lower guide mechanism is installed on the water meter positioning mechanism, the lead wire pulling back mechanism is installed on the water meter lead seal positioning and feeding mechanism, the lead wire lower guide mechanism and the lead wire pulling back mechanism are arranged at a relative interval, the lead wire upper guide mechanism is arranged on one side of the water meter positioning mechanism, and the pressing and tightening mechanism is arranged between the water meter positioning mechanism and the water meter lead seal positioning and feeding mechanism.

[0007] The water meter positioning mechanism is installed on the workbench to accurately position the water meter. The water meter seal positioning and feeding mechanism and the water meter positioning mechanism are installed opposite to each other to position the lead seal and push the lead seal close to the water meter. The lead line guide mechanism is installed on the water meter positioning mechanism through the first connecting plate to guide the lead line that is about to penetrate into the case hole. The lead line guide mechanism is installed on the side of the water meter positioning mechanism and is fixed with the first profile frame. The lead line passing through the water meter hole will move along the path of the lead line guide mechanism. The pressing and tightening mechanism is suspended on the upper and front sides of the water meter positioning mechanism through the second profile frame to control the curvature of the lead line and tighten the lead seal. The lead line pulling mechanism is installed under the support plate of the water meter seal positioning and feeding mechanism to tighten the lead line passing through the seal hole.

[0008] Furthermore, the water meter positioning mechanism includes a first base, a clamping cylinder, a water meter positioning seat, a clamping mounting seat, a retaining plate, and a retaining head. The first base is mounted on a workbench, the water meter positioning seat is mounted on the upper surface of the first base, the clamping mounting seat is mounted on one side of the first base, the clamping cylinder is mounted on the upper part of the clamping mounting seat, the retaining head is connected to the clamping cylinder through the retaining plate, and the retaining head is located above the water meter positioning seat. The retaining head applies downward pressure to the water meter.

[0009] Furthermore, the lower lead line guide mechanism includes a lower guide connecting plate, a guide propulsion cylinder, and a lower lead line guide. The guide propulsion cylinder is installed on one side of the water meter positioning mechanism through the lower guide connecting plate. The lower lead line guide is connected to the guide propulsion cylinder and is used to capture and guide the lead line. The lower lead line guide captures and guides the lead line.

[0010] The best, the cross section of the lower lead guide is V-shaped. The top size is small and the bottom size is large, which can capture softer lead lines, and at the same time, it will not interfere with other mechanisms when running due to the small top size.

[0011] Furthermore, the water meter lead seal positioning and feeding mechanism includes a second base, a propulsion cylinder, a propulsion support plate, and a lead seal positioning jig. The second base is installed on a workbench, the propulsion cylinder is installed on the upper part of the second base, the lead seal positioning jig is connected to the propulsion cylinder through the propulsion support plate, and the lead seal positioning jig faces one side of the water meter positioning mechanism. The lead seal positioning jig is placed in front of the propulsion support plate, and the propulsion cylinder completes the wire feeding action of the lead seal.

[0012] The best, the lead seal positioning fixture includes a first positioning block, a second positioning block, a guide block, and a spring. The first positioning block, the second positioning block, and the guide block are arranged in a straight line at intervals at the front end of the advancement support plate. The first positioning block and the guide block are respectively connected to the advancement support plate, and the second positioning block is connected to the guide block through a spring. The first positioning block is provided with a cylindrical shaft, and the second positioning block is provided with a cylindrical groove. The cylindrical shaft and the cylindrical groove match, and the spring presses against the guide block to push the second positioning block, so that the lead seal is pressed between the first positioning block and the second positioning block.

[0013] The best lead wire pulling mechanism includes a wire pulling cylinder, a clamping finger cylinder, a clamping fixture, and a clamping connecting plate. The wire pulling cylinder is installed at the lower part of the propulsion support plate. The propulsion support plate is an inverted T-shaped structure, and a rectangular notch is provided on its horizontal plate. The lead seal positioning fixture is installed at the front edge of the rectangular notch. The clamping finger cylinder is vertically inserted into the rectangular notch and is connected to the propulsion support plate through the clamping connecting plate. The clamping fixture is connected to the cylinder shaft at the upper part of the clamping finger cylinder.

[0014] Furthermore, the lead wire guiding mechanism includes a first profile frame, a cross slide module, a module connecting plate, a rotating cylinder, a cylinder connecting plate, and an upper lead wire guiding rod. The first profile frame is installed on the workbench, the cross slide module is installed on the upper part of the first profile frame through the module connecting plate, the rotating cylinder is installed on the cross slide module through the cylinder connecting plate, and the upper lead wire guiding rod is connected to the rotating cylinder.

[0015] The rotating cylinder is used to drive the upper lead wire guide rod to rotate, so that the lead wire that originally passed through the water meter case hole vertically upward is driven by the upper lead wire guide rod to rotate and change the direction of the lead wire head.

[0016] The upper lead wire guide rod is thick at the rear end and thin at the front end, with an open cylindrical groove at the very front end. A trumpet mouth is opened at the end of the cylindrical groove close to the hole of the water meter case, which can better capture the lead wire passing through the hole of the water meter. At the same time, the open cylindrical groove can also be better withdrawn after the lead seal is installed.

[0017] Furthermore, the pressing and tightening mechanism includes a second profile frame, an electric cylinder, a tightening connecting plate, a rotating motor, a guide and tightening rod, the second profile frame is N-type, and is installed on the workbench between the water meter positioning mechanism and the water meter seal positioning and feeding mechanism. The electric cylinder is installed on the upper part of the second profile frame, and the rotating motor is installed on the second profile frame through the tightening connecting plate, and the guide and tightening rod are connected to the rotating motor.

[0018] The tightening connection plate is used to support the rotating motor, which transmits the rotational movement to the guide and tightening rod.

[0019] Preferably, the guide and tightening rod is vertically arranged, and a deep transverse groove is formed on the bottom surface thereof, and a shallow V-shaped groove perpendicular to the deep transverse groove is formed on the guide and tightening rod. After the guide mechanism on the lead wire guides the direction of the lead wire, the shallow V-shaped groove can dynamically adjust the curvature of the lead wire at the hole position of the water meter case.

[0020] The automatic assembly of the above-mentioned water meter rotary seal automatic assembly mechanism includes the following steps:

[0021] S1: The water meter and the lead seal are loaded and placed in the water meter positioning seat and the lead seal positioning fixture by a robot;

[0022] S2: The pressing cylinder is started, the buckling head is pressed down to apply a pressing force to the water meter, and the spring in the lead seal positioning fixture applies a pressing force to the lead seal, thereby completing the positioning of the water meter and the lead seal;

[0023] S3: the propulsion cylinder is started, the propulsion support plate drives the lead seal close to the water meter, the guide propulsion cylinder is extended to bring the upper end of the lower lead wire guide close to the water meter case hole, the lead wire contacts the lower lead wire guide during the forward movement, and passes through the water meter case hole along the groove in the lower lead wire guide under the action of thrust;

[0024] S4: The initial position of the upper lead wire guide rod is directly above the water meter case hole. After the lead wire passes through the water meter case hole, it goes straight into the cylindrical groove of the upper lead wire guide rod. The cross slide module is started, and the rotary cylinder rotates slowly at the same time, driving the lead wire to make an arc motion and move away from the water meter and slowly approach the lead seal.

[0025] S5: The guide and tightening rod is moved downward, and the lead wire is supported by the "V"-shaped groove to prevent it from shaking left and right. At the same time, the lead wire is pressed downward to reduce the curvature of the bent lead wire and keep the lead wire head parallel to the lead sealing hole. The smaller curvature ensures that the lead wire will not get stuck.

[0026] S6: the upper lead wire guide rod is horizontal to the lead seal hole and slowly approaches it, and the lead wire begins to pass through the lead seal through hole;

[0027] S7: When the lead wire slowly passes through the through hole, the clamping finger cylinder clamps inward, the clamping fixture clamps the lead wire, and the wire pulling cylinder shrinks away from the lead seal. At this time, the guide cylinder drives the lower lead wire to shrink downward, no longer guiding the lower lead wire, and avoiding collision with other mechanisms;

[0028] S8: The guide and tightening rod moves upward, and the propulsion cylinder and the tensioning cylinder stop moving after reaching their stroke. At this time, the lead wire has been tightened, and the lead seal is close to the water meter case hole. The guide and tightening rod moves downward to clamp the upper shell of the lead seal, and the rotating motor drives the guide and tightening rod to rotate 90° to tighten the lead seal.

[0029] Beneficial effects: Compared with the prior art, the advantages of the present invention are:

[0030] 1) The water meter is threaded by the guide mechanism and changing the curvature of the lead wire, which has a simple structure and low cost;

[0031] 2) It fills the gap in the automatic assembly of lead wire seals, realizes efficient and automatic lead seal assembly, and greatly improves production efficiency;

[0032] 3) The automatic assembly mechanism of water meter lead seal replaces manual work, which greatly reduces the rate of manual errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Schematic diagram of encapsulating a water meter with a plastic rotary seal;

[0034] Figure 2 It is a schematic diagram of the automatic assembly mechanism of the water meter lead seal;

[0035] Figure 3 It is a schematic diagram of the water meter positioning mechanism and the lead line guiding mechanism;

[0036] Figure 4 It is a schematic diagram of the water meter lead seal positioning and feeding mechanism and the lead seal pulling back mechanism;

[0037] Figure 5 It is a schematic diagram of the guiding mechanism on the lead wire;

[0038] Figure 6 It is a structural schematic diagram of the upper lead line guide rod;

[0039] Figure 7 It is a schematic diagram of the pressing and tightening mechanism;

[0040] Figure 8 It is a schematic diagram of the structure of the guide and tightening rod. DETAILED DESCRIPTION

[0041] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0042] A water meter rotary seal automatic assembly mechanism, such as Figures 1 to 8 As shown, it includes a workbench 1 and a water meter positioning mechanism 0100, a water meter lead seal positioning and feeding mechanism 0200, a lead wire pulling back mechanism 0300, a lead wire lower guiding mechanism 0400, a lead wire guiding mechanism 0500, and a pressing and tightening mechanism 0600 respectively installed thereon; the water meter rotary lead seal automatic assembly mechanism is used to pass the lead seal lead wire through the water meter case hole and insert it back into the lead seal hole, and finally rotate the lead seal cover for mechanical locking.

[0043] The water meter positioning mechanism 0100 and the water meter lead seal positioning and feeding mechanism 0200 are arranged at a relative interval, the lead line lower guide mechanism 0400 is installed on the water meter positioning mechanism 0100, the lead line pulling back mechanism 0300 is installed on the water meter lead seal positioning and feeding mechanism 0200, the lead line lower guide mechanism 0400 and the lead line pulling back mechanism 0300 are spaced relative to each other, the lead line guide mechanism 0500 is arranged on one side of the water meter positioning mechanism 0100, and the pressing and tightening mechanism 0600 is arranged between the water meter positioning mechanism 0100 and the water meter lead seal positioning and feeding mechanism 0200.

[0044] The water meter positioning mechanism 0100 includes a first base 2, a clamping cylinder 3, a water meter positioning seat 4, a clamping mounting seat 5, a retaining plate 6, and a retaining head 7. The first base 2 is installed on the workbench 1, and the water meter positioning seat 4 is installed on the front of the first base 2 to accurately position the water meter 8. The clamping cylinder 3 is connected to the first base 2 through the clamping mounting seat 5. There is a retaining plate 6 at the front end of the clamping cylinder 3. The retaining head 7 is installed on the retaining plate 6 to apply downward pressure to the water meter 8.

[0045] The water meter seal positioning and feeding mechanism 0200 is installed on the workbench 1 opposite to the water meter positioning mechanism 0100, including a second base 9, a propulsion cylinder 10, a propulsion support plate 11, and a seal positioning fixture; the second base 9 is installed on the workbench 1 surface, and the propulsion cylinder 10 is installed on the second base 9. The propulsion cylinder 10 is connected to the propulsion support plate 11, and the seal positioning fixture is placed in front of the propulsion support plate 11, and the propulsion cylinder 10 completes the wire feeding action of the seal 16.

[0046] The lead seal positioning fixture is assembled at the front of the pushing support plate 11, and includes a first positioning block 12, a second positioning block 13, a guide block 14, and a spring 15. The first positioning block 12 is provided with a cylindrical shaft, and the second positioning block 13 is provided with a cylindrical groove. The two are engaged with each other, and the spring 15 pushes the second positioning block 13 forward against the guide block 14 to press the lead seal 16.

[0047] The lead wire re-pulling machine includes a wire pulling cylinder 17, a clamping finger cylinder 18, a clamping fixture 19, and a clamping connecting plate 20. The wire pulling cylinder 17 is directly installed under the propulsion support plate 11, the clamping finger cylinder 18 is installed on the wire pulling cylinder 17 through the clamping connecting plate 20, and the clamping fixture 19 is installed on the clamping finger cylinder 18.

[0048] The lower lead line guiding mechanism 0400 includes a lower guide connecting plate 21, a guide propulsion cylinder 22, and a lower lead line guide 23, wherein the guide propulsion cylinder 22 is installed on the first base 2 through the lower guide connecting plate 21, and the lower lead line guide 23 is installed on the guide propulsion cylinder 22 to capture and guide the lead line.

[0049] The cross section of the lower lead wire guide 23 is V-shaped, with a small top size and a large bottom size, which can capture softer lead wires. At the same time, the small top size will not interfere with other mechanisms during operation.

[0050] The lead wire guiding mechanism 0500 includes a first profile frame 24, a cross slide module 25, a module connecting plate 26, a rotating cylinder 27, a cylinder connecting plate 28 and an upper lead wire guiding rod 29. The cross slide module 25 is installed on the first profile frame 24 through the module connecting plate 26, and the rotating cylinder 27 is installed on the cross slide module 25 through the cylinder connecting plate 28, which is used to drive the upper lead wire guiding rod 29 to rotate, so that the lead wire that originally passes through the water meter case hole 35 vertically upward is driven by the upper lead wire guiding rod 29 to rotate and change the direction of the lead wire head.

[0051] The upper lead wire guide rod 29 has a thick rear end and a thin front end, and an open cylindrical groove is formed at the front end. A bell mouth is formed at one end of the cylindrical groove close to the water meter case hole 35, which can better capture the lead wire passing through the water meter hole. At the same time, the open cylindrical groove can also be better withdrawn after the lead seal is installed.

[0052] The pressing and tightening mechanism 0600 includes a second profile frame 30, an electric cylinder 31, a tightening connecting plate 32, a rotating motor 33, and a guide and tightening rod 34. The electric cylinder 31 is installed on the second profile frame 30, and the tightening connecting plate 32 is installed on the electric cylinder 31, which is used to support the rotating motor 33. The rotating motor 33 transmits the rotational motion to the guide and tightening rod 34.

[0053] The guide and tightening rod 34 is slender, with a deep transverse groove at the bottom. The lead seal 16 is locked by the rotation of the rotating motor 33. A shallow V-shaped groove is opened perpendicular to the transverse groove. After the guide mechanism 05000500 on the lead wire guides the direction of the lead wire, the shallow V-shaped groove can dynamically adjust the curvature of the lead wire at the hole 35 of the water meter case.

[0054] The following is a detailed description of the working steps of the automatic assembly mechanism of the water meter rotary seal:

[0055] S1: Loading water meter 8 and lead seal 16, and placing them in water meter positioning seat 4 and lead seal positioning fixture 0010 by the robot;

[0056] S2: The clamping cylinder 3 is started, the buckling head 7 is pressed down to give a clamping force to the water meter 8, and the spring 15 in the lead seal positioning fixture 0010 gives a clamping force to the lead seal 16, completing the positioning of the water meter 8 and the lead seal 16;

[0057] S3: The propulsion cylinder 10 is started, the propulsion support plate 11 drives the lead seal 16 to approach the water meter 8, and the guide propulsion cylinder 22 is extended to bring the upper end of the lower lead wire guide 23 close to the water meter case hole 35. The lead wire contacts the lower lead wire guide 23 during the forward movement, and passes through the water meter case hole 35 along the groove in the lower lead wire guide under the action of the thrust;

[0058] S4: The upper lead wire guide rod 29 is initially positioned above the water meter case hole 35. After the lead wire passes through the water meter case hole 35, it directly passes into the cylindrical groove of the upper lead wire guide rod 29. The cross slide module 25 is started, and the rotary cylinder 27 rotates slowly, driving the lead wire to make an arc motion and move away from the water meter 8, and slowly approach the lead seal 16.

[0059] S5: The guide and tightening rod 34 moves downward, and the V-shaped groove is used to hold the lead wire to prevent it from shaking left and right. At the same time, the lead wire is pressed downward to reduce the curvature of the bent lead wire and keep the lead wire head parallel to the lead sealing hole. The smaller curvature ensures that the lead wire will not get stuck.

[0060] S6: The upper lead wire guide rod 29 is horizontal to the lead seal hole and slowly approaches it, and the lead wire begins to pass through the lead seal through hole;

[0061] S7: When the lead wire slowly passes through the through hole, the clamping finger cylinder 18 clamps inward, the clamping fixture 19 clamps the lead wire, and the wire pulling cylinder 17 shrinks away from the lead seal 16. At this time, the guide propulsion cylinder 22 drives the lower lead wire guide 23 to shrink downward, no longer guiding the lower lead wire, and avoiding collision with other mechanisms;

[0062] S8: The guide and tightening rod 34 moves upward, and the propulsion cylinder 10 and the wire pulling cylinder 17 reach the stroke and stop moving. At this time, the lead wire has been tightened, and the lead seal 16 is close to the water meter case hole 35. The guide and tightening rod 34 moves downward again to clamp the upper shell of the lead seal 8. The rotating motor 33 drives the guide and tightening rod 34 to rotate 90° to tighten the lead seal 16.

[0063] The present invention can replace manual assembly of lead seals, effectively solve the problems of difficulty in lead wire punching, time-consuming and labor-intensive, and low labor efficiency, realize efficient and automated soft lead wire lead seal assembly, improve production efficiency, and reduce fault tolerance.

Claims

1. A water meter rotary seal automatic assembly mechanism, characterized in that: It comprises a workbench (1) and a water meter positioning mechanism (0100), a water meter lead seal positioning and feeding mechanism (0200), a lead wire pulling back mechanism (0300), a lead wire lower guiding mechanism (0400), a lead wire upper guiding mechanism (0500), and a pressing and tightening mechanism (0600) respectively installed thereon; The water meter positioning mechanism (0100) and the water meter lead seal positioning and feeding mechanism (0200) are arranged at a relative interval, the lead line lower guide mechanism (0400) is installed on the water meter positioning mechanism (0100), the lead line pulling mechanism (0300) is installed on the water meter lead seal positioning and feeding mechanism (0200), the lead line lower guide mechanism (0400) and the lead line pulling mechanism (0300) are arranged at a relative interval, the lead line upper guide mechanism (0500) is arranged on one side of the water meter positioning mechanism (0100), and the pressing and tightening mechanism (0600) is arranged between the water meter positioning mechanism (0100) and the water meter lead seal positioning and feeding mechanism (0200).

2. The automatic assembly mechanism for a water meter rotary seal according to claim 1, characterized in that: The water meter positioning mechanism (0100) comprises a first base (2), a clamping cylinder (3), a water meter positioning seat (4), a clamping mounting seat (5), a retaining plate (6), and a retaining head (7); the first base (2) is mounted on a workbench (1); the water meter positioning seat (4) is mounted on the upper surface of the first base (2); the clamping mounting seat (5) is mounted on one side of the first base (2); the clamping cylinder (3) is mounted on the upper part of the clamping mounting seat (5); the retaining head (7) is connected to the clamping cylinder (3) through the retaining plate (6), and the retaining head (7) is located above the water meter positioning seat (4).

3. The automatic assembly mechanism for a water meter rotary seal according to claim 1, characterized in that: The lead line lower guide mechanism (0400) comprises a lower guide connecting plate (21), a guide propulsion cylinder (22), and a lower lead line guide (23). The guide propulsion cylinder (22) is installed on a side surface of the water meter positioning mechanism (0100) through the lower guide connecting plate (21). The lower lead line guide (23) is connected to the guide propulsion cylinder (22) and is used to capture and guide the lead line.

4. The automatic assembly mechanism for a water meter rotary seal according to claim 3, characterized in that: The cross section of the lower lead wire guide (23) is V-shaped.

5. The automatic assembly mechanism for a water meter rotary seal according to claim 1, characterized in that: The water meter lead seal positioning and feeding mechanism (0200) comprises a second base (9), a propulsion cylinder (10), a propulsion support plate (11), and a lead seal positioning jig. The second base (9) is installed on a workbench (1), the propulsion cylinder (10) is installed on the upper part of the second base (9), the lead seal positioning jig is connected to the propulsion cylinder (10) via the propulsion support plate (11), and the lead seal positioning jig faces one side of the water meter positioning mechanism (0100).

6. The automatic assembly mechanism for a water meter rotary seal according to claim 5, characterized in that: The lead seal positioning fixture comprises a first positioning block (12), a second positioning block (13), a guide block (14), and a spring (15). The first positioning block (12), the second positioning block (13), and the guide block (14) are sequentially arranged at intervals in a straight line at the front end of a propulsion support plate (11). The first positioning block (12) and the guide block (14) are respectively connected to the propulsion support plate (11). The second positioning block (13) is connected to the guide block (14) through the spring (15). The first positioning block (12) is provided with a cylindrical shaft, and the second positioning block (13) is provided with a cylindrical groove. The cylindrical shaft and the cylindrical groove match. The spring (15) presses against the guide block (14) to push the second positioning block (13), so that the lead seal (16) is pressed between the first positioning block (12) and the second positioning block (13).

7. The automatic assembly mechanism for a water meter rotary seal according to claim 5, characterized in that: The lead wire pulling mechanism (0300) comprises a wire pulling cylinder (17), a clamping finger cylinder (18), a clamping fixture (19), and a clamping connecting plate (20). The wire pulling cylinder (17) is installed at the lower part of the propulsion support plate (11). The propulsion support plate (11) is an inverted T-shaped structure, and a rectangular notch is arranged on its horizontal plate. The lead seal positioning fixture is installed at the front edge of the rectangular notch. The clamping finger cylinder (18) is vertically inserted into the rectangular notch and is connected to the propulsion support plate (11) through the clamping connecting plate (20). The clamping fixture (19) is connected to the cylinder shaft at the upper part of the clamping finger cylinder (18).

8. The automatic assembly mechanism for a water meter rotary seal according to claim 1, characterized in that: The lead wire upper guide mechanism (0500) comprises a first profile frame (24), a cross slide module (25), a module connecting plate (26), a rotary cylinder (27), a cylinder connecting plate (28), and an upper lead wire guide rod (29); the first profile frame (24) is mounted on a workbench (1); the cross slide module (25) is mounted on the upper part of the first profile frame (24) through the module connecting plate (26); the rotary cylinder (27) is mounted on the cross slide module (25) through the cylinder connecting plate (28); and the upper lead wire guide rod (29) is connected to the rotary cylinder (27).

9. The automatic assembly mechanism for a water meter rotary seal according to claim 1, characterized in that: The pressing and tightening mechanism (0600) comprises a second profile frame (30), an electric cylinder (31), a tightening connecting plate (32), a rotating motor (33), and a guiding and tightening rod (34). The second profile frame (30) is n-shaped and is installed on a workbench (1) between a water meter positioning mechanism (0100) and a water meter lead seal positioning and feeding mechanism (0200). The electric cylinder (31) is installed on the upper part of the second profile frame (30). The rotating motor (33) is installed on the second profile frame (30) through the tightening connecting plate (32). The guiding and tightening rod (34) is connected to the rotating motor (33).

10. The automatic assembly mechanism for a water meter rotary seal according to claim 9, characterized in that: The guide and tightening rod (34) is vertically arranged, and a deep transverse groove is provided on its bottom surface. A shallow V-shaped groove perpendicular to the deep transverse groove is also provided on the guide and tightening rod (34).

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