Water inlet joint screwing structure

Abstract

The utility model belongs to the technical field of water pump assembly, and relates to a water inlet joint screwing structure which comprises a clamping assembly for clamping a water pump and a rotating assembly for screwing a water inlet joint, a plurality of tooth-shaped buckles distributed in the radial direction are arranged at the bottom of the water inlet joint, and the clamping assembly comprises a workbench. A pair of semicircular clamping plates for clamping the water pump in a matched mode are arranged on the workbench in the vertical direction of the axis of the water pump in a sliding mode, the rotating assembly comprises a rotating clamping jaw and a power device for driving the rotating clamping jaw to rotate, and a plurality of clamping jaw protruding blocks matched with the tooth-shaped buckles are arranged at the end of the rotating clamping jaw. The clamping jaw protruding blocks are inserted into gaps of the tooth-shaped buckles and drive the water inlet joint to rotate. According to the water inlet joint screwing structure, the automation degree, the installation efficiency and the installation quality of installation of the water inlet joint can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pump assembly and relates to a water inlet joint tightening structure. Background Art

[0002] The water inlet section of the water pump is connected by a threaded structure. During assembly, the water inlet section needs to be screwed into the water pump to form a fastened connection structure. In order to improve the installation efficiency of the water inlet section of the water pump, it is necessary to design an automated assembly line for the installation of the water inlet section.

[0003] Chinese utility model patent CN203209975U (publication date: 2013-09-25) discloses an automatic assembly machine for a submersible pump, comprising: a pump body segmented assembly device, the pump body segmented assembly device comprises a segmented bracket body, a power actuator is fixed on the top of the segmented bracket, a push rod is connected to the output end of the power actuator, and the power actuator applies a force relative to the top of the bracket to the push rod; it also comprises a pump body assembly assembly device, the pump body assembly assembly device comprises a small accessory assembly table, and a switch console connected to the small accessory assembly table, a speed reduction conversion device is also fixed on the switch console, the speed reduction conversion device is connected to the power device through a transmission system, a locking joint is connected to the output end of the speed reduction device, and an assembly bracket is also arranged at the corresponding position of the locking joint; after the pump body segmented equipment device assembles each segment of the pump body, it is sent to the pump body assembly assembly device for overall assembly.

[0004] Although the above-mentioned assembly machine realizes the automated installation of the water inlet section, its structure is relatively complex and there is still room for improvement. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a water inlet joint tightening structure, which can improve the degree of automation, installation efficiency and installation quality of the water inlet joint installation.

[0006] In order to solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions:

[0007] A water inlet joint tightening structure comprises a clamping assembly for clamping a water pump and a rotating assembly for tightening the water inlet joint, a plurality of radially distributed toothed buckles are arranged at the bottom of the water inlet joint, the clamping assembly comprises a workbench, a pair of semicircular clamping plates for clamping the water pump are slidably arranged on the workbench in the vertical direction of the water pump axis, the rotating assembly comprises a rotating claw and a power device for driving the rotating claw, a plurality of claw protrusions cooperating with the toothed buckles are arranged at the end of the rotating claw, the claw protrusions are inserted into the gaps of the toothed buckles and drive the water inlet joint to rotate.

[0008] In the above-mentioned water inlet joint tightening structure, the power device is a servo motor.

[0009] In the above-mentioned water inlet joint tightening structure, the power device may also use other devices, such as a rotating cylinder, etc.

[0010] In the above-mentioned water inlet joint tightening structure, the servo motor drives the rotating claw to rotate through the rotating connecting rod, the motor shaft of the servo motor is connected to the rotating connecting rod through a coupling, and the rotating claw is sleeved on the end of the rotating connecting rod and connected through a flat key. Preferably, a pair of flat keys are provided.

[0011] In the above-mentioned water inlet joint tightening structure, the servo motor is an adjustable motor, and the servo motor controls the rotation speed, rotation angle and torque of the rotating claw.

[0012] In the above-mentioned water inlet joint tightening structure, a pair of guide rails are arranged on the workbench, the semicircular clamping plates are slidably arranged on the guide rails, and the two semicircular clamping plates are driven by a cylinder to move toward or away from each other. Further, the semicircular clamping plates and the guide rails are assembled by a dovetail structure. Further, the two semicircular clamping plates are driven by the same cylinder and are arranged as a linkage structure.

[0013] In the above-mentioned water inlet joint tightening structure, the toothed buckle includes a plurality of convex ribs arranged at intervals and grooves between adjacent convex ribs.

[0014] In the above-mentioned water inlet joint tightening structure, the workbench is slidably arranged along the axial direction of the water pump.

[0015] In the above-mentioned water inlet joint tightening structure, there are multiple workbenches, which are slidably arranged on the assembly line, each workbench corresponds to a group of rotating components, and the workbench slides between the loading and unloading stations and the installation station along the axis direction of the water pump.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The utility model provides a water inlet joint tightening structure, which clamps the water pump through a clamping assembly, connects the rotating claw through the toothed buckle at the bottom of the water inlet joint, and then drives the rotating claw through a power device to drive the water inlet joint to rotate to tighten the water inlet joint. The utility model provides an installation structure for automatically tightening the water inlet joint, which can improve the automation, installation efficiency and installation quality of the water inlet joint installation.

[0018] 2. The utility model drives the rotating claw through a servo motor, which can control the torque and rotation amount to avoid damage to parts such as the ribs of the water inlet joint due to over-tightening. In addition, after the installation is completed, the servo motor can also judge whether it is tightened by the final tightening torque, thereby further improving the installation quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the utility model clamping water pump;

[0021] Figure 3 It is a structural schematic diagram of the utility model in working state 1;

[0022] Figure 4 It is a structural schematic diagram of the second working state of the utility model;

[0023] Figure 5 This is a structural schematic diagram of the utility model in working state three;

[0024] Figure numerals: 1, water pump; 2, water inlet joint; 3, toothed buckle; 4, workbench; 5, semicircular clamp; 6, rotating claw; 7, claw protrusion; 8, rotating connecting rod; 9, flat key; 10, guide rail. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings. Figure 1-5 :

[0026] A water inlet joint tightening structure, including a clamping assembly for clamping a water pump 1 and a rotating assembly for tightening the water inlet joint 2, a plurality of radially distributed toothed buckles 3 are arranged at the bottom of the water inlet joint 2, the clamping assembly includes a workbench 4, a pair of semicircular clamping plates 5 for clamping the water pump 1 are slidably arranged on the workbench 4 in the vertical direction of the axis of the water pump 1, the rotating assembly includes a rotating claw 6 and a power device for driving the rotating claw 6, a plurality of claw protrusions 7 for cooperating with the toothed buckle 3 are arranged at the end of the rotating claw 6, the claw protrusion 7 is inserted into the gap of the toothed buckle 3 and drives the water inlet joint 2 to rotate.

[0027] In this embodiment, the power device is a servo motor.

[0028] Compare with Figure 1 In this embodiment, the transmission structure of the servo motor driving the rotating claw 6 is: the servo motor drives the rotating claw 6 to rotate through the rotating connecting rod 8, the motor shaft of the servo motor is connected to the rotating connecting rod 8 through a coupling, and the rotating claw 6 is sleeved on the end of the rotating connecting rod 8 and connected through a flat key 9. Preferably, a pair of flat keys 9 are provided.

[0029] Preferably, the servo motor is an adjustable motor, and the servo motor controls the rotation speed, rotation angle and torque of the rotating claw 6 .

[0030] In this embodiment, the clamping drive structure of the water pump 1 is: a pair of guide rails 10 are provided on the workbench 4, the semicircular clamping plate 5 is slidably provided on the guide rails 10, and the two semicircular clamping plates 5 are driven by a cylinder to move toward or away from each other. Further, the semicircular clamping plate 5 and the guide rail 10 are assembled by a dovetail structure. Further, the two semicircular clamping plates 5 are driven by the same cylinder and are provided as a linkage structure.

[0031] Compare with Figure 2 The toothed buckle 3 includes a plurality of spaced convex ribs and grooves between adjacent convex ribs.

[0032] In order to facilitate the operation, the workbench 4 is slidably arranged along the axial direction of the water pump 1. The workbench 4 can slide on the ground or on a bracket. Preferably, the workbench 4 is driven to slide by a cylinder.

[0033] This embodiment can be further applied to an assembly line: a plurality of workbenches 4 are provided and slidably arranged on the assembly line, each workbench 4 corresponds to a set of rotating components, and the workbench 4 slides between the loading and unloading station and the installation station along the axis direction of the water pump 1. The device of this embodiment can shorten the production cycle of a single unit in the water pump 1 installation assembly line by more than 15%.

[0034] The working process of this embodiment is:

[0035] Step 1: Compare the attached Figure 3 , step on the pneumatic switch, the semicircular clamping plate 5 is separated to both sides, the water pump 1 is placed in the semicircular clamping plate 5, the pneumatic switch is released, the semicircular clamping plate 5 is closed, and the water pump 1 is clamped;

[0036] Step 2: Compare the attached Figure 4 , click the start button, the workbench 4 continues to move from the loading and unloading station to the installation station, close to the rotating claw 6, until the toothed buckle 3 at the bottom is matched with the rotating claw 6;

[0037] Step 3: Compare the attached Figure 5 , the servo motor starts, drives the rotating claw 6 to rotate by rotating the connecting rod 8, and drives the water inlet section 2 to rotate into the water pump 1;

[0038] Step 4: After tightening, the servo motor determines whether it is tightened according to the final tightening torque. After tightening, the workbench 4 automatically returns to its original position, the semicircular clamping plate 5 is opened, and the water pump 1 with the water inlet section 2 installed is taken out.

[0039] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A water inlet joint tightening structure, comprising a clamping assembly for clamping a water pump (1) and a rotating assembly for tightening the water inlet joint (2), characterized in that: The bottom of the water inlet joint (2) is provided with a plurality of radially distributed toothed buckles (3); the clamping assembly comprises a workbench (4); a pair of semicircular clamping plates (5) for clamping the water pump (1) are slidably arranged on the workbench (4) in a vertical direction along the axis of the water pump (1); the rotating assembly comprises a rotating claw (6) and a power device for driving the rotating claw to rotate; the end of the rotating claw (6) is provided with a plurality of claw protrusions (7) for cooperating with the toothed buckle (3); the claw protrusions (7) are inserted into the gap of the toothed buckle (3) and drive the water inlet joint (2) to rotate.

2. A water inlet joint tightening structure according to claim 1, characterized in that: The power device is a servo motor.

3. A water inlet joint tightening structure according to claim 2, characterized in that: The servo motor drives the rotating claw (6) to rotate via a rotating connecting rod (8); the motor shaft of the servo motor is connected to the rotating connecting rod (8) via a coupling; the rotating claw (6) is sleeved on the end of the rotating connecting rod (8) and is connected via a flat key (9).

4. A water inlet joint tightening structure according to claim 3, characterized in that: The servo motor is an adjustable motor, and the servo motor controls the rotation speed, rotation angle and torque of the rotating claw (6).

5. The water inlet joint tightening structure according to claim 1, characterized in that: A pair of guide rails (10) are arranged on the workbench (4), and the semicircular clamping plates (5) are slidably arranged on the guide rails (10). The two semicircular clamping plates (5) are driven by a cylinder to move toward or away from each other.

6. The water inlet joint tightening structure according to claim 1, characterized in that: The toothed buckle (3) comprises a plurality of convex ribs arranged at intervals and grooves between adjacent convex ribs.

7. The water inlet joint tightening structure according to claim 1, characterized in that: The workbench (4) is slidably arranged along the axial direction of the water pump (1).

8. A water inlet joint tightening structure according to claim 7, characterized in that: The workbench (4) is provided in plurality and is slidably arranged on the assembly line. Each workbench (4) corresponds to a group of rotating components. The workbench (4) slides between the loading and unloading station and the installation station along the axis direction of the water pump (1).

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