A watch waterproof performance test fixture and a test method thereof

Abstract

The application discloses a watch waterproof performance test fixture and a test method thereof and belongs to the technical field of watch fixtures, and comprises a fixture main body, at least one single-spindle detection device is movably installed in the cavity of the fixture main body through a rotating shaft and a servo motor, a single-spindle control device is installed on the fixture main body and corresponds to the single-spindle detection device, and a negative pressure generating device is installed in the fixture main body. The device is reasonable in structure, reliable in operation, capable of simultaneously testing multiple watches, and capable of automatically screening out qualified products and unqualified products, thereby improving work efficiency. The qualified watch indicates that the sealing property is good, and the waterproof performance of the watch is further good.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of watch fixture, and particularly relates to a watch waterproof performance test fixture and a test method thereof. BACKGROUND

[0002] The existing watch waterproof performance test on the market is mainly divided into water pressure test and air pressure test. If the water pressure test is used, the watch will be damaged directly and the cost will be high if the waterproof performance of the watch is unqualified. If the existing air pressure test method is used, the steps are complicated, the test is slow, and after the test, the unqualified products are picked out by manual observation of the instrument, which is time-consuming and laborious. SUMMARY

[0003] In view of the above problems in the prior art, the purpose of the present application is to provide a watch waterproof performance test fixture and a test method thereof.

[0004] The present application provides the following technical solutions:

[0005] A watch waterproof performance test fixture, comprising a fixture main body, at least one single-spindle detection device is movably installed in the cavity of the fixture main body through a rotating shaft cooperating with a servo motor; a single-spindle control device is installed on the fixture main body, and the single-spindle control device corresponds to the single-spindle detection device; and a negative pressure generating device is installed inside the fixture main body.

[0006] Specifically, the single-spindle detection device comprises a detection box body, a passage is arranged in the detection box body, two branches are arranged on the passage, an electric cylinder is installed on the detection box body, a piston head arranged on the electric cylinder is arranged in the passage, when the electric cylinder reaches the full stroke, the piston head seals the branches to prevent the test piece from falling into the branches, and a sealing layer is arranged on the top of the detection box body.

[0007] Specifically, the two branches are an unqualified product screening chamber and a qualified product screening chamber, the unqualified product screening chamber is communicated with a drawer, the drawer is movably installed in the detection box body, and the qualified product screening chamber is communicated with a collection frame, and the collection frame is installed on the fixture main body.

[0008] Specifically, a slot is arranged in the cavity corresponding to the single-spindle detection device, a proximity switch is installed in the slot, a buckle head is installed on the detection box body through a flexible connecting piece, and when the servo motor drives the detection box body to rotate to the angle at which the test piece falls into the unqualified product screening chamber or the qualified product screening chamber, the buckle head can be detected by the proximity switch.

[0009] Specifically, the single-spindle control device comprises a single-spindle control panel, a gas cylinder installed in the fixture main body, and a pressure-sensitive sensor installed on the gas cylinder, and a sealing element is installed between the piston rod of the gas cylinder and the fixture main body.

[0010] Specifically, the negative pressure generating device comprises a connecting air pipe II and an air pump installed in the jig main body, the air pump is connected with the connecting air pipe II through a connecting air pipe I, a plurality of air nozzles are arranged on the connecting air pipe II, the air nozzles are connected with the single-spindle detection device through air holes provided in the jig main body, and the sealing layer at the connection position of the air holes and the channel is in an excluded state.

[0011] Specifically, the jig main body further comprises a support provided at the bottom of the jig main body, an emergency stop switch, an air pump switch, a motor switch, a hand slot and a heat dissipation hole installed on the jig main body.

[0012] Specifically, the emergency stop switch, the air pump switch, the motor switch, the electric cylinder, the proximity switch, the air cylinder, the pressure sensor, the servo motor and the air pump are communicatively coupled with the single-spindle control panel.

[0013] Based on the above device, the application further provides a test method using the watch waterproof performance test jig, which comprises the following steps:

[0014] S1, placing the watch on the placing rack on the top of the piston head in the channel, and the piston head is at the highest point;

[0015] S2, starting the servo motor by pressing the motor switch, and the servo motor drives the detection box body to rotate until the top of the detection box body and the cavity arc surface are attached; at this time, the channel is in a sealed state, the air cylinder is started, the pressure sensor and the surface of the watch are attached, the pressure sensor measures a group of data, and the data is fed back to the single-spindle control panel;

[0016] S3, opening the air pump by pressing the air pump switch, and the air nozzle removes the gas near the watch, if the watch sealing performance is poor, the gas in the watch is also removed; the pressure sensor measures the data and feeds back the result to the single-spindle control panel, the single-spindle control panel processes the two measurement data and compares them;

[0017] S4, after the test, the single-spindle control panel controls the movement of the electric cylinder, when the watch is detected to be qualified, the piston head moves to the vicinity of the qualified product screening room, when the watch is detected to be unqualified, the piston head moves to the vicinity of the unqualified product screening room, then the single-spindle control panel controls the servo motor to start, and then the detection box body is rotated, wherein the unqualified product falls into the unqualified product screening room, and the qualified product falls into the qualified product screening room, if the unqualified product is detected, the warning light on the single-spindle control panel will light up to remind, and the drawer is opened regularly for cleaning;

[0018] S5, when the detection box body is rotated to a certain position, the buckle head buckles the proximity switch at this time, the proximity switch transmits a signal to the single-spindle control panel, the single-spindle control panel controls the servo motor to be closed, and then the watch is placed for detection.

[0019] The application has the following beneficial effects:

[0020] The device has reasonable structure, reliable operation, can test multiple watches at the same time, and can automatically screen out qualified products and unqualified products, thereby improving work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and are included to provide a further understanding of the application, and are made a part of the specification and are used to explain the application, but do not constitute a limitation on the application. In the drawings:

[0022] Figure 1 is a three-dimensional view of the application;

[0023] Figure 2 is a structural schematic view of the application without a single-spindle detection device;

[0024] Figure 3 is a schematic view of the internal structure of the single-spindle detection device in the application;

[0025] Figure 4 is Figure 2 is an enlarged view of A in

[0026] Figure 5 is a structural schematic view of the single-spindle control device in the application;

[0027] Figure 6 is a structural schematic view of the negative pressure generating device in the application;

[0028] Figure 7 is a three-dimensional view of the single-spindle detection device in the application;

[0029] Figure 8 is a flowchart of the test method in the application;

[0030] In the drawings, 100 is a jig main body; 101 is a cavity; 102 is a rotating shaft; 103 is a servo motor; 104 is a slot; 105 is an air hole; 106 is a support; 107 is a heat dissipation hole; 108 is a hand slot; 109 is a motor switch; 110 is an air pump switch; 111 is an emergency stop switch; 112 is a single-spindle control device; 113 is a negative pressure generating device; 114 is a single-spindle detection device; 115 is a collection frame; 116 is a proximity switch;

[0031] 1121 is a single-spindle control board; 1122 is an air cylinder; 1123 is a pressure sensitive sensor;

[0032] 1131 is an air pump; 1132 is a connecting air pipe one; 1133 is an air nozzle; 1134 is a connecting air pipe two;

[0033] 1141, detection box; 1142, buckle head; 1143, flexible connecting piece; 1144, channel; 1145, defective product screening chamber; 1146, drawer; 1147, qualified product screening chamber; 1148, cylinder; 1149, piston head. DETAILED DESCRIPTION

[0034] As shown in Figure 1 and Figure 2 , the present application provides a watch waterproof performance test fixture, comprising a fixture main body 100, the fixture main body 100 bottom is provided with a support 106, at least one single spindle detection device 114 is movably installed in the cavity 101 of the fixture main body 100 through the rotating shaft 102 and cooperates with the servo motor 103, the single spindle control device 112 is installed on the fixture main body 100, and the single spindle control device 112 corresponds to the single spindle detection device 114, the single spindle control device 112 is used for testing the test piece, the fixture main body 100 is internally provided with a negative pressure generating device 113, the negative pressure generating device 113 is used for generating negative pressure in the single spindle detection device 114, and the fixture main body 100 is further provided with a collection frame 115.

[0035] Firstly, the test piece is manually placed in the single spindle detection device 114, then the servo motor 103 is rotated, so that a sealed space is formed in the single spindle detection device 114, at this time, the initial state data of the test piece is detected by the single spindle control device 112, then the negative pressure generating device 113 is started, and the negative pressure state is maintained for 90 seconds, the negative pressure state data of the test piece is detected by the single spindle control device 112, finally, the negative pressure state data and the initial state data are compared, if the data has no change, it is determined that the test piece is unqualified, if the data shows a change, it is determined that the test piece is qualified, and finally the qualified test piece enters the collection frame 115.

[0036] Specifically, if the watch sealing performance is not good under the negative pressure state, the glass of the watch will not sink, or the glass sinks at the beginning of the pressure, but quickly recovers; if the watch glass can always maintain the sinking state when maintaining the negative pressure state for 90 seconds, it indicates that the watch sealing performance is good. When the watch sealing performance is good, the watch glass is in a slight deformation state under the negative pressure state, and when it returns to the normal pressure environment, the watch glass can recover to the original state, and the single spindle control device 112 can detect the pressure formed by the deformation state, so the negative pressure state data detected by the single spindle control device 112 will change; on the contrary, if the sealing performance is not good, the data will not change.

[0037] Please refer to Figure 3The single-spindle detection device 114 comprises a detection box 1141, a passage 1144 is arranged in the detection box 1141, two branches are arranged on the passage 1144, the two branches are a defective product screening chamber 1145 and a qualified product screening chamber 1147 respectively, the defective product screening chamber 1145 is communicated with a drawer 1146, the drawer 1146 is movably arranged in the detection box 1141, the qualified product screening chamber 1147 is communicated with a collection frame 115, and an electric cylinder 1148 is arranged on the detection box 1141. A piston head 1149 arranged on the electric cylinder 1148 is arranged in the passage 1144. When the electric cylinder 1148 is in a full stroke state, the piston head 1149 seals the branch, so that the test piece cannot fall into the branch. A buckle head 1142 is arranged on the detection box 1141 through a flexible connecting piece 1143, and a sealing layer is arranged at the top of the detection box 1141.

[0038] In the initial state, the top end of the passage 1144 is located outside the cavity 101, the detection box 1141 is in an inclined state, and the electric cylinder 1148 is in a full stroke state. Then, the test piece is placed on the piston head 1149 through the passage 1144 by artificial operation, the servo motor 103 is started, the detection box 1141 is driven to rotate by the servo motor 103, so that the sealing layer is tightly attached to the cavity 101. Then, the negative pressure generating device 113 is started, so that the test piece is in a negative pressure state. At the same time, the pressure value of the test piece is compared through the single-spindle control device 112. If the data changes, it is determined that the test piece is qualified. The electric cylinder 1148 is started, the piston head 1149 is retracted into the qualified product screening chamber 1147, then the servo motor 103 is started, and the detection box 1141 is driven to rotate by the servo motor 103, so that the test piece can fall into the collection frame 115 along the qualified product screening chamber 1147. If the data shows no change, it is determined that the test piece is unqualified. The electric cylinder 1148 is started, the piston head 1149 is retracted into the defective product screening chamber 1145, then the servo motor 103 is started, and the detection box 1141 is driven to rotate by the servo motor 103, so that the test piece can fall into the drawer 1146 along the defective product screening chamber 1145.

[0039] Further, please refer to Figure 4 A slot 104 is arranged in the cavity 101 corresponding to the single-spindle detection device 114. A proximity switch 116 is arranged in the slot 104. When the detection box 1141 is rotated to an angle at which the test piece falls into the defective product screening chamber 1145 or the qualified product screening chamber 1147 by the servo motor 103, the buckle head 1142 can be detected by the proximity switch 116. After the signal is transmitted, the servo motor 103 is turned off.

[0040] Please refer to Figure 2 and Figure 5The single-spindle control device 112 comprises a single-spindle control board 1121, a pneumatic cylinder 1122 installed in the jig main body 100, a pressure sensor 1123 installed on the pneumatic cylinder 1122, and a sealing element installed between the piston rod of the pneumatic cylinder 1122 and the jig main body 100.

[0041] When the single-spindle detection device 114 needs to detect the pressure change of the test piece, the pneumatic cylinder 1122 is started, and the pressure sensor 1123 is sent into the single-spindle detection device 114 by the pneumatic cylinder 1122 to detect the pressure of the test piece.

[0042] Please refer to Figure 6 The negative pressure generating device 113 comprises a connecting air pipe two 1134 and a gas pump 1131 installed in the jig main body 100, the gas pump 1131 is connected with the connecting air pipe two 1134 through a connecting air pipe one 1132, a plurality of air nozzles 1133 are arranged on the connecting air pipe two 1134, and the air nozzles 1133 are connected with the single-spindle detection device 114 through the air holes 105 provided in the jig main body 100, and please refer to Figure 7 The sealing layer at the connection position of the air hole 105 and the channel 1144 is in a state of being removed, so as to avoid that the sealing layer seals the air hole 105, thereby affecting the negative pressure state.

[0043] The watch waterproof performance test jig further comprises an emergency stop switch 111, a gas pump switch 110, a motor switch 109, a hand groove 108 and a heat dissipation hole 107 installed on the jig main body 100.

[0044] The emergency stop switch 111, the gas pump switch 110, the motor switch 109, the pneumatic cylinder 1148, the proximity switch 116, the pneumatic cylinder 1122, the pressure sensor 1123, the servo motor 103 and the gas pump 1131 are communicatively coupled with the single-spindle control board 1121.

[0045] The single-spindle control board 1121 comprises a PLC controller, the PLC controller is a programmable numerical control system, the PLC is used as a central control system, a touch screen is used to realize program input and running control of the whole machine, and full automation in the transportation process is realized. The control system can be used as a system for connecting various execution elements to move according to a logical track, and the execution elements are controlled to run according to required running steps through programming.

[0046] Please refer to Figure 8 Based on the above device, the application further provides a test method using the watch waterproof performance test jig, which comprises the following steps.

[0047] Step one, place the watch on the top of the piston head 1149 in the channel 1144, and the piston head 1149 is at the highest point.

[0048] Step two, press the motor switch 108 to start the servo motor 103, the servo motor 103 drives the detection box 1141 to rotate until its top and the cavity 101 arc surface are attached; At this time, the channel 1144 is in a sealed state, open the air cylinder 1122, the pressure sensor 1123 and the watch surface are attached, the pressure sensor 1122 measures a set of data, and feeds back the data to the single spindle control panel 1121;

[0049] Step three, open the air pump 1131 by pressing the air pump switch 110, the air nozzle 1133 removes the gas near the watch, if the watch sealing is not good, the gas in it is also removed; The pressure sensor 1122 measures the data and feeds back the result to the single spindle control panel 1121, the single spindle control panel 1121 processes the two measurement data and compares them;

[0050] Step four, after the test, the single spindle control panel 1121 controls the electric cylinder 1148 to move, when the watch is detected to be qualified, the piston head 1149 moves to the vicinity of the qualified product screening room 1147, when the watch is detected to be unqualified, the piston head 1149 moves to the vicinity of the unqualified product screening room 1145, then the single spindle control panel 1121 controls the servo motor 103 to start, and then rotates the detection box 1141, wherein the unqualified product falls into the unqualified product screening room 1145, and the qualified product falls into the qualified product screening room 1147, if the unqualified product is detected, the warning light on the single spindle control panel 1121 will light up to remind, and the drawer 1146 is opened regularly for cleaning;

[0051] Step five, when the detection box 1141 rotates to a certain position, the buckle head 1142 buckles the proximity switch 116, the proximity switch 116 transmits a signal to the single spindle control panel 1121, the single spindle control panel 1121 controls the servo motor 103 to be closed, and then the watch is placed for detection.

[0052] The device has reasonable structure and reliable operation, can test multiple watches at the same time, and can automatically screen qualified products and unqualified products, thereby improving work efficiency. The qualified watch indicates good sealing performance, which can further indicate good waterproof performance.

[0053] The above only describes the preferred embodiments of the present application and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A watch waterproof performance testing fixture, comprising a fixture body (100), characterized in that, Also includes At least one single-spindle detection device (114) is movably installed in the cavity (101) of the fixture body (100) via a rotating shaft (102) and a servo motor (103); A single-spindle control device (112) is installed on the fixture body (100), and the single-spindle control device (112) corresponds to the single-spindle detection device (114); A negative pressure generating device (113) is installed inside the fixture body (100); The single-spindle testing device (114) includes a testing box (1141), which has a channel (1144) inside. The channel (1144) has two branches. An electric cylinder (1148) is installed on the testing box (1141). The piston head (1149) on the electric cylinder (1148) is placed inside the channel (1144). When the electric cylinder (1148) reaches its full stroke, the piston head (1149) seals the branch to prevent the test piece from falling into the branch. The top of the testing box (1141) is provided with a sealing layer. The two branches are a defective product screening chamber (1145) and a qualified product screening chamber (1147). The defective product screening chamber (1145) is connected to a drawer (1146), which is movably installed inside the testing box (1141). The qualified product screening chamber (1147) is connected to a collection frame (115), which is installed on the fixture body (100). After the test is completed, if the watch passes the test, the electric cylinder (1148) drives the piston head (1149) to move to the vicinity of the qualified product screening chamber (1147). If the watch fails the test, the electric cylinder (1148) drives the piston head (1149) to move to the vicinity of the defective product screening chamber (1145). Then the servo motor (103) starts and rotates the detection box (1141), where defective products fall into the defective product screening chamber (1145) and qualified products fall into the qualified product screening chamber (1147).

2. The watch waterproof performance testing fixture according to claim 1, characterized in that, The cavity (101) is provided with a slot (104) corresponding to the single-spindle detection device (114). A proximity switch (116) is installed in the slot (104). At the same time, a buckle head (1142) is installed on the detection box (1141) through a flexible connecting piece (1143). When the servo motor (103) drives the detection box (1141) to rotate to the angle where the test piece falls into the defective product screening chamber (1145) or the qualified product screening chamber (1147), the buckle head (1142) can be detected by the proximity switch (116).

3. A watch waterproof performance testing fixture according to claim 1 or 2, characterized in that, The single-spindle control device (112) includes a single-spindle control board (1121), a cylinder (1122) installed in the fixture body (100), a pressure sensor (1123) installed on the cylinder (1122), and a seal is installed between the piston rod of the cylinder (1122) and the fixture body (100).

4. The watch waterproof performance testing fixture according to claim 3, characterized in that, The negative pressure generating device (113) includes a connecting air pipe two (1134) and an air pump (1131) installed in the fixture body (100). The air pump (1131) is connected to the connecting air pipe two (1134) through the connecting air pipe one (1132). The connecting air pipe two (1134) is provided with a number of air nozzles (1133). The air nozzles (1133) are connected to the single ingot detection device (114) through the air holes (105) provided in the fixture body (100). The sealing layer at the connection between the air hole (105) and the channel (1144) is removed.

5. The watch waterproof performance testing fixture according to claim 4, characterized in that, It also includes a support (106) at the bottom of the fixture body (100), an emergency stop switch (111), an air pump switch (110), a motor switch (109), a hand slot (108), and a heat dissipation hole (107) installed on the fixture body (100).

6. A watch waterproof performance testing fixture according to claim 5, characterized in that, An emergency stop switch (111), an air pump switch (110), a motor switch (109), an electric cylinder (1148), a proximity switch (116), an air cylinder (1122), a pressure sensor (1123), a servo motor (103), and an air pump (1131) are communicatively coupled to a single-spindle control board (1121).

7. A testing method using a watch water resistance testing fixture as described in claim 1, characterized in that, Includes the following steps: S1, place the watch on the top shelf of the piston head (1149) in the channel (1144), with the piston head (1149) at its highest point; S2, press the motor switch (109) to start the servo motor (103). The servo motor (103) drives the detection box (1141) to rotate until its top and the arc surface of the cavity (101) are in contact. At this time, the channel (1144) is in a sealed state. Open the cylinder (1122), and the pressure sensor (1123) is in contact with the watch surface. The pressure sensor (1123) measures a set of data and feeds the data back to the single ingot control board (1121). S3, press the air pump switch (110) to turn on the air pump (1131), the air nozzle (1133) draws away the gas near the watch. If the watch is not well sealed, the gas inside it will also be drawn away. The pressure sensor (1123) measures the data and feeds the result back to the single-spindle control board (1121). The single-spindle control board (1121) processes the two measurement data and compares them. S4. After the test is completed, the single-spindle control board (1121) controls the electric cylinder (1148) to move. When the watch passes the test, the piston head (1149) moves to the vicinity of the qualified product screening chamber (1147). When the watch fails the test, the piston head (1149) moves to the vicinity of the defective product screening chamber (1145). Then, the single-spindle control board (1121) controls the servo motor (103) to start, and then rotates the detection box (1141). Defective products will fall into the defective product screening chamber (1145), and qualified products will fall into the qualified product screening chamber (1147). If a defective product is detected, the warning light on the single-spindle control board (1121) will light up to remind the user. The drawer (1146) should be opened regularly for cleaning. S5, when the detection box (1141) rotates to a certain position, the buckle head (1142) latches the proximity switch (116), the proximity switch (116) transmits the signal to the single ingot control board (1121), the single ingot control board (1121) controls the servo motor (103) to shut down, making it easier to place the watch for detection.

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