CN217654694U - Automatic workpiece leakage detection equipment - Google Patents

Abstract

Automatic leak hunting equipment of work piece includes: a machine platform; the feeding assembly is arranged on the machine table; the blanking assembly is arranged on the machine table; set up in airtight detection subassembly on the board, airtight detection subassembly including movably set up in work piece holder on the board, the sealed head and the inflation head that set up relatively, drive sealed head drive unit that the head removed, drive inflate the head drive unit that the head removed, sealed head with it can relative movement to inflate the head to compress tightly in the both ends of work piece or leave the work piece. The utility model adopts the gas detection method to test whether the product has leakage, which can not cause secondary pollution and damage to the product; whether the pressure value changes is tested through an instrument, and the condition that misjudgment possibly caused by artificial subjective judgment is avoided. And a plurality of workpieces can be tested simultaneously, so that the efficiency is improved.

Description

Automatic leakage detection equipment for workpieces

Technical Field

The utility model belongs to the technical field of the check out test set, concretely relates to automatic equipment of leaking hunting for infusion pump filling opening.

Background

The infusion pump is an infusion device, and the controller is used for driving the motor to rotate, so that liquid medicine can be accurately, micro, uniformly and continuously infused into a human body, the infusion accuracy, safety and nursing quality are greatly improved, the workload of medical staff is effectively reduced, and the working efficiency of the medical staff is improved. A liquid filling port is usually arranged on a pipeline of the infusion pump, and the flow speed and the direction of the liquid medicine can be controlled through the liquid filling port. Before the infusion pump product leaves the factory, the filling opening needs to be subjected to leak detection testing, and whether the filling opening has a leakage condition or not is checked. At present the test of leaking hunting of filling opening all is manual operation, connects the intake pipe in the one end of filling opening during the test, and the other end is sealed, then puts into the aquatic, aerifys in the water is to the filling opening through the intake pipe, whether has the bubble to produce to judge the filling opening through the observation and leak. However, the leakage detection method by putting the product in water may cause pollution or damage to the product itself to a certain extent, and the product is dried after the leakage detection is finished, thereby reducing the production efficiency. The manual detection mode is limited by the experience and proficiency of workers, and the situation of misjudgment is difficult to avoid.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an efficient and can not cause the automatic equipment of leaking hunting of work piece of pollution to the product.

In order to achieve the above object, the present invention adopts the following technical solutions:

automatic equipment that leaks hunting of work piece includes: a machine platform; the feeding assembly is arranged on the machine table; the blanking assembly is arranged on the machine table; set up in airtight detection subassembly on the board, airtight detection subassembly including movably set up in work piece holder on the board, the sealed head and the head of aerifing that set up relatively, drive sealed head drive unit that the head removed, drive aerify the head drive unit that the head removed, sealed head with aerify the head relative movement to compress tightly in the both ends of work piece or leave the work piece.

Furthermore, the material loading subassembly including place the vibration dish of work piece, set up in vibration dish and along the vibration dish discharge gate of vibration dish outer wall tangential extension, set up in vibration dish discharge gate department is used for accepting the vibration dish silo of work piece, set up in the blowing board of vibration dish silo discharge gate, drive the blowing board drive unit that the blowing board removed, thereby the blowing board drive unit control down horizontal reciprocating motion with the work piece transfer to on the work piece holder.

Furthermore, the discharge end of vibration dish silo is provided with the guide block of V-arrangement, the opening of guide block is towards the supplied materials direction of vibration dish silo.

Furthermore, the discharge end of the vibration tray trough is provided with an attitude adjusting assembly, the attitude adjusting assembly comprises a blowing part and a mounting bracket, the blowing part is arranged above the discharge end of the vibration tray trough through the mounting bracket, and a gas outlet of the blowing part faces downwards and can blow gas to the workpiece from top to bottom.

Further, airtight detection subassembly still including movably set up in first slip table and second slip table on the board, it is a plurality of sealed head set up in on the first slip table, it is a plurality of aerify the head set up in on the second slip table, sealed head drive unit control the removal of first slip table, aerify first drive unit control the removal of second slip table.

Furthermore, a silica gel sealing part is arranged at the contact end of the inflation head and the sealing head and the workpiece.

Furthermore, the sealing head with between the silica gel sealing portion and aerify the head with be provided with buffer spring between the silica gel sealing portion.

Further, the hardness of the silica gel sealing part is 80 degrees.

Furthermore, the unloading subassembly including set up in installing support on the board, can set up with reciprocating in clamping jaw on the installing support and control the clamping jaw drive unit from top to bottom that the clamping jaw removed.

Furthermore, a clamping jaw mounting seat capable of moving up and down is arranged on the mounting support, the clamping jaws are arranged on the clamping jaw mounting seat, and the clamping jaw up-and-down driving unit controls the clamping jaw mounting seat to move up and down.

According to the technical scheme provided by the utility model, the utility model discloses a gas detection method tests whether there is the leakage in the product, will seal the head and aerify the head stifled both ends at the work piece, whether there is the leakage in the situation of change of observing pressure after aerifing judging, compare with traditional water detection method, can not cause secondary pollution and destruction to the product, and whether change through instrument test pressure value, and compare with whether bubble is produced with the naked eye observation, the condition of having avoided the misjudgement that the people probably leads to for subjective judgement takes place, the defective products inflow market has been stopped, and still can carry out automatic test to a plurality of work pieces simultaneously, and the efficiency is improved, personnel's input has also been reduced, the cost of labor expenditure has been reduced.

Drawings

In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive effort.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural view of the embodiment of the present invention after the cabinet body is removed;

FIG. 3 is a schematic structural view of the embodiment of the present invention at another angle after the cabinet body is removed;

fig. 4 is a schematic structural view of a discharging component and a vibrating tray trough according to the embodiment of the present invention;

fig. 5 is a schematic structural diagram of an airtight detection assembly according to an embodiment of the present invention;

fig. 6 is a schematic structural view of the air tightness detecting assembly according to another angle of the embodiment of the present invention;

fig. 7 is a schematic diagram of the detection principle of the present invention.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings, wherein for convenience of illustration, the drawings showing the structure of the device are not to scale and are partially enlarged, and the drawings are only examples, which should not limit the scope of the invention. It should be noted that all the drawings are drawn in simplified form and not to precise scale, and are only used for the purpose of facilitating and clearly assisting in the description of the embodiments of the present invention. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated; the terms "front," "back," "bottom," "upper," "lower," and the like refer to an orientation or positional relationship relative to an orientation or positional relationship shown in the drawings, which is for convenience and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Referring to fig. 1, 2 and 3, the automatic workpiece leakage detection device of the present embodiment includes a cabinet 1, a openable cabinet door 2 is provided on the cabinet 1, a machine table 3 is provided inside the cabinet 1, and a feeding assembly, an airtight detection assembly and a discharging assembly are provided on the machine table 3. The material loading subassembly is used for sending the work piece that awaits measuring to airtight detection subassembly and detecting, and airtight detection subassembly is used for applying airtight detection principle to detect whether there is the leakage condition to the work piece, and the unloading subassembly is used for transferring the work piece that finishes detecting to corresponding material recycling box 4 in.

Referring to fig. 2, 3 and 4, the feeding assembly of the present embodiment includes a vibration tray 5, a vibration tray chute 6, a discharging plate 7 and a discharging plate driving unit 8. The vibration plate 5 is internally provided with a liquid feeding port of the infusion pump which is the workpiece 100 to be tested, and the vibration plate 5 sends the workpieces 100 in the vibration plate out in sequence through vibration. A vibrating disk discharge port (not shown) is arranged on the vibrating disk 5, the vibrating disk discharge port extends tangentially along the outer wall of the vibrating disk 5, a vibrating disk trough 6 is arranged at the vibrating disk discharge port, and the vibrating disk trough 6 is used for receiving workpieces 100 which are sequentially sent out from the vibrating disk 5. The section of the groove opening of the vibrating disc trough 6 is consistent with that of the groove opening of the vibrating disc discharge opening, the groove openings of the two parts are on the same straight line in a static state, a non-contact state is formed between the two parts, and a small gap is reserved so as to prevent the two parts from being cut and rubbed when the vibrating disc discharge opening vibrates along with the vibrating disc 5; the vibration disc trough 6 is used for accommodating workpieces which are vibrated by the vibration disc 5 and are sent out from a discharge port of the vibration disc, and sending the workpieces to a discharging assembly consisting of a discharging plate 7 and a discharging plate driving unit 8 under the pushing action of subsequent workpieces.

As a preferred embodiment of the present invention, as shown in fig. 4, a V-shaped guide block 9 is provided at the discharge end of the vibration tray trough 6, the opening of the guide block 9 faces the material feeding direction of the vibration tray trough 6, and when the workpiece 100 moves to the guide block 9, the V-shaped groove of the guide block 9 can guide the movement of the workpiece 100, guide the fed workpiece, and enable the workpiece to move smoothly to the material placing plate 7. The discharging plate 7 can horizontally reciprocate under the control of the discharging plate driving unit 8, and after the workpiece 100 moves in place, the discharging plate 7 retreats under the control of the discharging plate driving unit 8, so that the workpiece output from the vibrating tray trough 6 can be transferred to the air tightness detection assembly. Still be provided with sensor 10 at the discharge end of vibration dish silo 6, sensor 10 is used for responding to the position of work piece, and when sensing the work piece and removing the discharge end to vibration dish silo 6, sensor 10 sends the sensing signal, and blowing board drive unit 8 then controls the action of blowing board 7, transfers work piece 100 from the discharge end of vibration dish silo 6 to airtight detection subassembly on the work piece holder. Compare and adopt 3 axle manipulator structures, the structure of this embodiment blowing subassembly is simpler, and the cost is lower, the material loading is more high-efficient, the probability of makeing mistakes is lower. More preferably, in order to ensure that the workpieces 100 are fed into the workpiece holder of the air tightness detection assembly in a consistent posture, a posture adjustment assembly is arranged above the discharge end of the vibration tray trough 6, the posture adjustment assembly of the embodiment comprises an air blowing part 61 and a mounting bracket 62, the air blowing part 61 is arranged above the discharge end of the vibration tray trough 6 through the mounting bracket 62, an air outlet of the air blowing part 61 faces downwards, when the workpieces 100 move to the discharge end of the vibration tray trough 6, the air blowing part 61 has an air blowing action, the posture of the workpieces 100 is adjusted by blowing air from top to bottom, and the posture of the workpieces is consistent before entering the next process.

As shown in fig. 5 and 6, the airtightness detection assembly includes a work clamp 11, a sealing head 12, an inflation head 13, a clamp movement drive unit 14, a sealing head drive unit 15, and an inflation head drive unit 16. The workpiece holder 11 is movably arranged on the machine platform under the control of the holder moving driving unit 14, and the workpiece holder 11 is used for bearing the workpiece 100 and moving the workpiece 100 from the discharge end of the vibrating tray trough 6 to the detection station. In order to improve efficiency, the work holder 11 is provided with a plurality of work placing positions 11a, and a plurality of works 100 can be transferred to the inspection station at a time and inspected. The jig movement drive unit 14 of the present embodiment employs a linear electric cylinder. The sealing head 12 and the inflation head 13 are oppositely arranged, when the workpiece clamp 11 moves between the sealing head 12 and the inflation head 13, one end of the workpiece 100 is blocked by the sealing head 12 for sealing, and the inflation head 13 is connected to the other end of the workpiece 100 to inflate the workpiece 100. The number of the sealing heads 12 and the gas filling heads 13 corresponds to the number of the work placing positions 11a on the work holder 11. In this embodiment, a plurality of sealing heads 12 set up jointly on first slip table 17, and sealing head drive unit 15 drives sealing head 12 that is located it and moves together through the removal of controlling first slip table 17, and during the test, sealing head drive unit 15 drives sealing head 12 and compresses tightly in the tip of work piece 100 and realizes sealing, and after accomplishing the test, sealing head drive unit 15 drives sealing head 12 and leaves work piece 100. Similarly, the inflation heads 13 are jointly arranged on the second sliding table 18, the inflation head driving unit 16 drives the inflation heads 13 on the second sliding table 18 to move together by controlling the movement of the second sliding table 18, the inflation heads 13 are connected with an external air source (not shown), during testing, the inflation head driving unit 16 drives the inflation heads 13 to press against the end portions of the workpieces 100 and inflate the workpieces 100, and after the testing is completed, the inflation head driving unit 16 drives the inflation heads 13 to leave the workpieces 100. The contact ends of the sealing head 12, the inflating head 13 and the workpiece are provided with silica gel sealing parts 20 to ensure the sealing performance during testing. The silicone sealing portion 20 has a hardness of about 80 degrees (shore hardness). More preferably, buffer springs 21 are arranged between the inflation head 13 and the silicone sealing part 20 and between the sealing head 12 and the silicone sealing part 20, and the buffer springs 21 can protect the workpiece and ensure good air tightness.

As shown in fig. 2 and 3, the blanking assembly of the present embodiment includes a jaw 19, a jaw mount 20, a jaw up-down driving unit 21, and a mounting bracket 22. The mounting bracket 22 is disposed on the machine platform 3, the clamping jaw mounting base 20 is disposed on the mounting bracket 22 in a vertically movable manner, and the clamping jaw mounting base 20 of the present embodiment is provided with clamping jaws 19 corresponding to the number of the workpiece placement bits on the workpiece fixture 11, so that the workpiece on the workpiece fixture 11 can be taken down at a time. The jaw up-and-down driving unit 21 is used for controlling the up-and-down movement of the jaw mounting base 20, thereby driving the jaws 19 to move up and down.

The leak detection process of the leak detection apparatus of the present invention will be described with reference to fig. 2, 3, 5, and 7.

After the equipment is started, the vibration disc 5 vibrates to send out the workpieces 100 in sequence, and the workpieces are sent to the discharge assembly through the vibration disc trough 6, at the moment, the workpiece clamp 11 also moves to the position of the radiotherapy assembly, and the discharge plate 7 is used for placing one workpiece onto the workpiece placing position 11a of the workpiece clamp 11 at one time; when a workpiece is placed, the workpiece clamp 11 moves forwards by one position until the workpiece placing position 11a on the workpiece clamp is full of workpieces;

after the workpiece fixture 11 is filled with a workpiece, the workpiece fixture is moved to a detection station, the sealing head driving unit 15 and the inflation head driving unit 16 respectively control the sealing head 12 and the inflation head 13 to move and tightly press the two ends of the workpiece 100, the inflation head fills clean gas into the workpiece 100, when the air pressure reaches a set value, inflation is stopped, pressure is maintained for a period of time, the pressure value after inflation is stopped is compared with the pressure value after pressure is maintained for a period of time, and if the difference value of the two values is within the threshold range, the product is determined to have no leakage.

The utility model adopts the gas detection method to test whether the product has leakage, compared with the traditional water detection method, the utility model can not cause secondary pollution and damage to the product; and whether the pressure value changes is tested through an instrument, and compared with the condition that whether bubbles are generated or not through visual observation, the condition that misjudgment possibly caused by artificial subjective judgment is avoided. And a plurality of workpieces can be tested simultaneously, so that the efficiency is improved.

Of course, the technical concept of the present invention is not limited to the above embodiments, and many different specific schemes can be obtained according to the concept of the present invention, for example, the driving unit can adopt a conventional mechanical driving structure such as a motor, an electric rod, a servo mechanism, etc. besides the air cylinder, the sliding connection structure between the components can adopt a structure of a guide rail and a slide block, and can also adopt a structure of a sliding groove and a slide block; the utility model can be used for detecting whether the liquid filling port used on the infusion pump leaks or not, and can also be used for detecting other workpieces with two-way pipeline structures; such modifications and equivalents are intended to be included within the scope of the present invention.

Claims (10)

1. Automatic equipment that leaks hunting of work piece, its characterized in that includes:

a machine platform;

the feeding assembly is arranged on the machine table;

the blanking assembly is arranged on the machine table;

set up in airtight detection subassembly on the board, airtight detection subassembly including movably set up in work piece holder on the board, the sealed head and the inflation head that set up relatively, drive sealed head drive unit that the head removed, drive inflate the head drive unit that the head removed, sealed head with it can relative movement to inflate the head to compress tightly in the both ends of work piece or leave the work piece.

2. The automatic leak detection apparatus for workpieces as claimed in claim 1, wherein: the material loading subassembly including place the vibration dish of work piece, set up in the vibration dish and along the vibration dish discharge gate of vibration dish outer wall tangential extension, set up in vibration dish discharge gate department is used for accepting the vibration dish silo of work piece, set up in the blowing board of vibration dish silo discharge gate, drive the blowing board drive unit that the blowing board removed, the blowing board is in thereby horizontal reciprocating motion transfers the work piece extremely under the control of blowing board drive unit on the work piece holder.

3. The automatic leak detection apparatus for workpieces as claimed in claim 2, wherein: the discharge end of vibration dish silo is provided with the guide block of V-arrangement, the opening of guide block is towards the supplied materials direction of vibration dish silo.

4. An automatic leak hunting apparatus for workpieces according to claim 2, characterized in that: the discharge end of the vibration tray trough is provided with a posture adjusting assembly, the posture adjusting assembly comprises an air blowing part and a mounting support, the air blowing part is arranged above the discharge end of the vibration tray trough through the mounting support, and an air outlet of the air blowing part faces downwards and can blow air to a workpiece from top to bottom.

5. The automatic leak detection apparatus for workpieces as claimed in claim 1, wherein: the airtight detection assembly further comprises a first sliding table and a second sliding table which are movably arranged on the machine table, the sealing heads are arranged on the first sliding table, the inflating heads are arranged on the second sliding table, the sealing head driving unit controls the first sliding table to move, and the inflating head driving unit controls the second sliding table to move.

6. The automatic leak detection apparatus for workpieces as claimed in claim 1, wherein: and a silica gel sealing part is arranged at the contact end of the inflation head and the sealing head and the workpiece.

7. The automatic leak detection apparatus for workpieces as claimed in claim 6, wherein: the sealing head with between the silica gel sealing portion and aerify the head with be provided with buffer spring between the silica gel sealing portion.

8. The automatic leak detection apparatus for workpieces as claimed in claim 6, wherein: the hardness of the silica gel sealing part is 80 degrees.

9. The automatic leak detection apparatus for workpieces as claimed in claim 1, wherein: the blanking assembly comprises an installation support arranged on the machine table, a clamping jaw arranged on the installation support in a vertically movable mode and a clamping jaw vertical driving unit for controlling the clamping jaw to move.

10. An automatic leak hunting apparatus for workpieces according to claim 9, characterized in that: the clamping jaw mounting base capable of moving up and down is arranged on the mounting support, the clamping jaws are arranged on the clamping jaw mounting base, and the clamping jaw up-and-down driving unit controls the clamping jaw mounting base to move up and down.

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