Actuator tail cover assembly automatic press-fit detection device

Abstract

The application discloses an automatic pressing and detecting device for an actuator tail cover assembly, which comprises a rotating disc base and a rotating disc. A power plug height detecting mechanism, a spring pressure detecting mechanism and a magnet assembly elastic force detecting mechanism are sequentially arranged on the rotating disc base and the periphery of the rotating disc. A plurality of magnet assembly positioning mechanisms are arranged on the periphery of the rotating disc. The magnet assembly positioning mechanism comprises a positioning base arranged on the periphery of the rotating disc, a tail cover tool base and a stand column arranged on the positioning base and close to each other. A push block is arranged on the upper portion of the stand column and above the tail cover tool base. The automatic pressing and detecting device can automatically and uniformly detect the power spring height, the spring pressure, the magnet assembly elastic force and the pressing position of the tail cover assembly, effectively ensures the overall quality of the tail cover assembly and obviously improves the work efficiency.

Description

Technical Field

[0001] This invention relates to a press-fitting and testing device for power drive components, specifically a press-fitting and testing device for actuator tail cover assemblies. Background Technology

[0002] Power drives can be divided into linear actuators and rotary actuators. A linear actuator is an actuator that outputs linear motion, while a rotary actuator outputs rotary motion. A linear actuator (motor) consists of a rotor and a stator. The rotor is a rotating component used to convert electrical energy into mechanical energy and vice versa. Currently, linear actuators generally include a brush holder assembly (including the brush holder body, inductor, carbon brushes, carbon brush springs, etc.), a tail cover assembly (including the tail cover body, magnets, etc.), a stator assembly (including magnets, stator housing), and a rotor assembly (including the rotor and silicon steel sheets, rotor shaft, output shaft, commutator, etc.). The tail cover assembly includes the tail cover body, magnet assembly, spring, power connector, guide spring, etc. The guide spring is pressed into the tail cover body by the magnet assembly, and the magnet assembly is then pressed and positioned by the spring. The power connector is installed in the tail cover body and mates with the connector, with a portion protruding outwards. After the tail cover assembly undergoes injection molding manufacturing, issues such as tilting or inconsistent height of the power plug may arise. It is necessary to test the elasticity of the magnet assembly to verify whether the spring is properly pressed in. There may also be issues with the guide spring being missing. At the same time, the spring pressure also needs to be tested individually. Currently, there is a lack of unified and integrated positioning and testing devices, which makes it difficult to ensure the overall quality of the tail cover assembly. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an automatic press-fitting and testing device for actuator tail cover assemblies, which can press-fit the tail cover assembly into place, detect the height of the power plug, detect the pressure of the spring, and detect the elasticity of the magnet assembly.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an automatic press-fitting and testing device for actuator tail cover assembly, comprising a turntable base and a turntable connected to a turntable rotation power source. A power plug height detection mechanism, a spring pressure detection mechanism, and a magnet assembly spring force detection mechanism are sequentially mounted on the turntable base and around the turntable. Several magnet assembly positioning mechanisms are mounted around the turntable. Each magnet assembly positioning mechanism includes a positioning base mounted around the turntable. A tail cover fixture base and a column are mounted close to each other on the positioning base. A push block is mounted on the upper part of the column, and the push block is positioned above the tail cover fixture base.

[0005] The power plug height detection mechanism includes a height detection fixed base, on which a lateral moving component is mounted, on which a height detection longitudinal moving component is mounted, and on which a displacement sensor and a displacement rod are mounted.

[0006] The spring pressure detection mechanism includes a pressure detection fixed base, on which a pressure detection longitudinal moving component is mounted. The pressure detection longitudinal moving component is connected to a pressure sensor and a spring pressing rod.

[0007] The magnet assembly elasticity detection mechanism includes an elasticity detection fixed base, on which an elasticity detection longitudinal moving component is mounted. The elasticity detection longitudinal moving component is connected to the elasticity sensor and the magnet assembly pressing head. A push block driving power source is mounted on the elasticity detection fixed base and on the side of the magnet assembly pressing head.

[0008] With the structure of this invention, the tail cover assembly to be tested is placed on the tail cover tooling base of the magnet assembly positioning mechanism and positioned by a push block pressing down on the magnet assembly. The power plug height detection mechanism detects the height of the power spring, the spring pressure detection mechanism detects the spring pressure, and the magnet assembly spring force detection mechanism detects the spring force in sequence. By automatically and uniformly completing the pressing and related performance tests of the tail cover assembly, the overall quality of the tail cover assembly is effectively guaranteed, and the work efficiency is significantly improved. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the installation structure of the present invention.

[0010] Figure 2 for Figure 1 A schematic diagram of the installation structure of the power connector height detection mechanism.

[0011] Figure 3 for Figure 1 A schematic diagram of the installation structure of the spring pressure detection mechanism.

[0012] Figure 4 for Figure 1 A schematic diagram of the installation structure of the magnet assembly elasticity detection mechanism.

[0013] Figure 5 for Figure 1 A schematic diagram of the tail cap assembly. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Reference Figure 1As can be seen, the automatic pressing and testing device for the actuator tail cover assembly of the present invention includes a turntable base 51 and a turntable 52. The turntable 52 is connected to a turntable rotation power source 53. On the turntable base 51 and around the turntable 52, a power plug height detection mechanism 54, a spring pressure detection mechanism 55, and a magnet assembly spring force detection mechanism 56 are installed in sequence. Around the turntable 52, a number of magnet assembly positioning mechanisms 57 (four in total, serving as four different workstations: installation or disassembly A, power plug height detection B, spring pressure detection C, and magnet assembly spring force detection D) are installed. The magnet assembly positioning mechanism 57 includes a positioning base 5 mounted around the turntable. On the positioning base 5, a tail cover tooling base 7 and a column 8 are mounted close to each other. A push block 6 is mounted on the upper part of the column 8, and the push block 6 is located above the tail cover tooling base 7. The power plug height detection mechanism 54, the spring pressure detection mechanism 55, and the magnet assembly elasticity detection mechanism 56 are all electrically connected to the microcomputer control mechanism 59 and are uniformly controlled by it.

[0016] like Figure 1 , Figure 5 As shown, the tail cover assembly 58 installed on the tail cover tooling base 7 of the magnet assembly positioning mechanism 57 includes a tail cover body 11, a magnet assembly 13, a spring 14, a power plug 15, a guide spring 12, etc. The guide spring 12 is pressed into the tail cover body 11 by the magnet assembly 13, and the magnet assembly 13 is then pressed and positioned by the spring 14. The power plug 15 (two pieces) is installed in the tail cover body 11 and is connected to the connector, with a portion protruding outward.

[0017] like Figure 1 , Figure 2 As shown, the power plug height detection mechanism 54 includes a height detection fixing base 22, on which a lateral moving component 21 is mounted. A height detection longitudinal moving component 25 is mounted on the lateral moving component 21. A displacement sensor 24 (at the upper position) and a displacement rod 26 (at the lower position) are mounted on the height detection longitudinal moving component 25 (via a displacement fixing base 23). Below the displacement rod 26 are the magnet assembly positioning mechanism 57, which has been rotated into position, and the tail cover assembly 58 mounted on the tail cover tooling base 7.

[0018] like Figure 1 , Figure 3 As shown, the spring pressure detection mechanism 55 includes a pressure detection mounting base 34, on which a pressure detection longitudinal movement component 31 is mounted. The pressure detection longitudinal movement component 31 is connected to a pressure sensor 32 (upper position) and a spring pressing rod 33 (lower position). Below the spring pressing rod 33 are the magnet assembly positioning mechanism 57, which has been rotated into position, and the tail cover assembly 58, which is mounted on the tail cover tooling base 7.

[0019] like Figure 1 , Figure 4 As shown, the magnet assembly spring force detection mechanism 56 includes a spring force detection fixing base 44, on which a spring force detection longitudinal moving component 41 is mounted. The spring force detection longitudinal moving component 41 is connected to the spring force sensor 42 (upper position) and the magnet assembly pressing head 43 (lower position). A push block pushing power source 45 (a push block pushing cylinder with a cylinder piston push rod) is mounted on the spring force detection fixing base 44 and on the side of the magnet assembly pressing head 43. Below the magnet assembly pressing head 43 are the magnet assembly positioning mechanism 57, which has been rotated into position, and the tail cover assembly 58 mounted on the tail cover tooling base 7.

[0020] The working process of this invention is as follows: I. Description of the installation or disassembly process of station A: First, the guide spring 12, magnet assembly 13, spring piece 14, power plug 15, etc. are pre-assembled to form the tail cover assembly 58 to be tested, with the magnet assembly 13, spring piece 14, and power plug 15 facing upwards. Then, the push block 6 of the magnet assembly positioning mechanism 57 is pushed to pre-install, press, and position the magnet assembly 13, and place it on the tail cover tooling base 7. Press the start button, and the turntable rotates to the next station, "Power Plug Height Detection B". At the same time, this station A is also the disassembly and transfer station after the relevant tests are completed.

[0021] II. Power Connector Height Detection Station B Workflow Description: After rotating from Station A, the lateral moving component 21, along with the height detection longitudinal moving component 25, moves to directly above the power connector 15. Then, the height detection longitudinal moving component 25, along with the displacement fixing seat 23, displacement sensor 24, and displacement rod 26, moves downwards to detect the height of one power connector. The detection displacement range is 12.6-12.9 mm. After detection, the height detection longitudinal moving component 25, along with the displacement fixing seat 23, displacement sensor 24, and displacement rod 26, moves upwards back to the starting point. The lateral moving component 21 then moves the height detection longitudinal moving component 25 to directly above another power connector. Then, the height detection longitudinal moving component, along with the sensor fixing seat 23, displacement sensor 24, and displacement rod 26, moves downwards to detect the height of another power connector. The detection displacement range is 12.6-12.9 mm. If the displacement exceeds this range, an alarm will be triggered. After the test is completed, the lateral moving components return to their initial positions. Press the start button, and the turntable rotates to the next station, "Spring Pressure Detection C". The purpose of this station is to detect the height of the power connector using a displacement sensor to prevent problems such as tilting or uneven height of the power connector after the tail cover assembly is injection molded.

[0022] III. Description of the C-station workflow for spring pressure testing: After rotating from station B, the longitudinal moving assembly 31 for pressure testing, along with the pressure sensor 32 and spring pressing rod 33, moves downwards onto the spring 14. The pressure sensor 32 detects the pressure on the spring to determine whether it is properly pressed in. The pressure range is set between 400-1600N; if the pressure exceeds this range, an alarm will be triggered. After the spring is pressed in, the longitudinal moving assembly for pressure testing returns to its initial position. Pressing the start button causes the turntable to rotate, heading towards the next station, "Magnet Assembly Spring Force Testing D". The purpose of this station is primarily to press in the spring. During the pressing process, the pressure sensor detects the pressure on the spring to ensure it is properly pressed in.

[0023] IV. Description of the workflow for the magnet assembly spring force testing station D: After rotating through process C, the pusher block pushes the power source 45 to push the pusher block 6, ejecting the magnet assembly 13. Then, the spring force detection longitudinal moving component 41 operates, with the spring force sensor 42 and the magnet assembly pressing head 43 moving downwards onto the magnet assembly. The spring force sensor 42 detects the magnitude of the spring force of the magnet assembly. The spring force (pressing force) range is set between 4-12N; if it exceeds this range, an alarm will be sounded to verify whether the spring is properly pressed in. After the test is completed, the spring force detection longitudinal moving component returns to its initial position. Pressing the start button causes the turntable to rotate, heading towards the next "installation or disassembly A" station to disassemble the tail cover assembly that has been tested and install the tail cover assembly to be tested. The purpose of this station is mainly to detect the magnitude of the spring force of the magnet assembly through the spring force sensor to verify whether the spring is properly pressed in, and also to prevent the guide spring 12 from being missed (if the guide spring is missed, the spring force of the magnet assembly will be 0).

Claims

1. An automatic press-fitting and testing device for actuator tail cap assembly, comprising a turntable base and a turntable, the turntable being connected to a turntable rotation power source, characterized in that: On the turntable base and around the turntable, a power plug height detection mechanism, a spring pressure detection mechanism, and a magnet assembly spring force detection mechanism are sequentially installed. Several magnet assembly positioning mechanisms are also installed around the turntable. Each magnet assembly positioning mechanism includes a positioning base mounted around the turntable, on which a tail cover fixture base and a column are mounted close together. A push block is mounted on the upper part of the column, positioned above the tail cover fixture base. The power plug height detection mechanism includes a height detection fixing seat, on which a lateral movement assembly is mounted, and on which a height detection longitudinal... The moving component includes a displacement sensor and a displacement rod mounted on the height detection longitudinal moving component; the spring pressure detection mechanism includes a pressure detection fixed base, on which a pressure detection longitudinal moving component is mounted, and the pressure detection longitudinal moving component is connected to the pressure sensor and the spring pressing rod; the magnet assembly spring force detection mechanism includes a spring force detection fixed base, on which a spring force detection longitudinal moving component is mounted, and the spring force detection longitudinal moving component is connected to the spring force sensor and the magnet assembly pressing head; a push block driving power source is mounted on the spring force detection fixed base and on the side of the magnet assembly pressing head. The tail cover assembly mounted on the tail cover fixture base of the magnet assembly positioning mechanism includes a tail cover body, a magnet assembly, a spring, a power connector, and a guide spring. The guide spring is pressed into the tail cover body by the magnet assembly, and the magnet assembly is then pressed and positioned by the spring. The power connector consists of two pieces mounted in the tail cover body, which mate with the connector and partially protrude outwards. With the magnet assembly, spring, and power connector facing upwards, the push block of the magnet assembly positioning mechanism is pushed to pre-install, press, and position the magnet assembly, placing it on the tail cover fixture base. Pressing the start button causes the turntable to rotate. The system includes a power connector height detection station, a spring contact pressure detection station, and a magnet assembly spring force detection station. At the power connector height detection station, a horizontal moving assembly, along with a height detection vertical moving assembly, moves to directly above the power connector. The vertical moving assembly, along with a displacement sensor and displacement rod, then moves downwards to detect the height of the power spring contact. At the spring contact pressure detection station, a vertical moving assembly, along with a pressure sensor and spring contact pressing rod, moves downwards onto the spring contact. The pressure sensor detects the pressure applied to the spring contact to determine if it is properly pressed in place. Magnet assembly spring force detection station: The pusher pushes the power source to push the pusher block open and pop out the magnet assembly. Then the spring force detection longitudinal moving component works and the spring force sensor and magnet assembly pressing head move down to the magnet assembly. The spring force sensor detects the magnitude of the spring force of the magnet assembly.

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