CN214793663U - Air tightness detection equipment for three-way injection molding piece - Google Patents
Air tightness detection equipment for three-way injection molding piece Download PDFInfo
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- CN214793663U CN214793663U CN202121699122.6U CN202121699122U CN214793663U CN 214793663 U CN214793663 U CN 214793663U CN 202121699122 U CN202121699122 U CN 202121699122U CN 214793663 U CN214793663 U CN 214793663U
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Abstract
The utility model belongs to the technical field of the processing of injection molding and the technique that detects and specifically relates to an air tightness check out test set of tee bend injection molding is related to, comprising a frame body, be provided with on the support body and support the piece, still be provided with the lower mould on the support body, support one side fixedly connected with that the piece is close to the lower mould and go up the mould, tee bend injection molding centre gripping is between the lower mould and last mould, the three through-hole of the common shutoff tee bend injection molding of lower mould and last mould, the detection position department coating of tee bend injection molding has bubble water, be provided with the air supply pipe that communicates to tee bend injection molding inner chamber on the lateral wall of lower mould or last mould. This application has the effect that improves the degree of accuracy of gas tightness detection operation.
Description
Technical Field
The application relates to the technical field of processing and detection of injection molding, in particular to air tightness detection equipment of a three-way injection molding.
Background
Injection molded parts are a generic term for various injection molded products produced by an injection molding machine, including various packages, parts, and the like. The injection molding part is mainly formed by injection molding of polyethylene or polypropylene and other materials.
The three-way injection molding part is a connecting piece of a fluid pipeline, is commonly used for shunting or converging fluid, and has a structure shown in figure 1, wherein one end of a main flow pipe 01 is provided with an access hole 011, the other end of the main flow pipe 01 is provided with a main access hole 012, a shunt pipe 02 is communicated and arranged on the side wall of the main flow pipe 01, an outlet of the shunt pipe 02 is arranged as an auxiliary access hole 021, and the end parts of the main flow pipe 01 and the shunt pipe 02 are arranged in a flush manner. An inner tube 03 communicating the inlet 011 and the main outlet 012 is further provided in the main flow tube 01, the fluid introduced into the inner tube 03 is discharged from the main outlet 012, the fluid introduced into the outer side of the inner tube 03 is discharged from the sub outlet 021, and the flow ratio of the main and sub outlets is determined by the cross-sectional area ratio of the inner tube 03 to the main flow tube 01.
Because the department of buckling structure of tee bend injection molding shunt tubes is comparatively complicated, and the injection moulding degree of difficulty is great, appears hole or slit easily, so need detect the gas tightness of this department. At present, three through holes of a three-way injection molding part are often plugged manually so as to detect the air tightness.
Aiming at the related technologies, the inventor thinks that the three through holes of the three-way injection molding part are plugged manually, the sealing performance of the through holes is poor, the result of air tightness detection is easily influenced, and the air tightness detection operation has the defect of low accuracy.
SUMMERY OF THE UTILITY MODEL
In order to improve the degree of accuracy of gas tightness detection operation, this application provides a gas tightness check out test set of tee bend injection molding.
The application provides a pair of three-way injection molding's gas tightness check out test set adopts following technical scheme:
the utility model provides an air tightness check out test set of tee bend injection molding, includes the support body, be provided with on the support body and support the piece, still be provided with the lower mould on the support body, support the piece and be close to go up the mould on one side fixedly connected with of lower mould, the tee bend injection molding centre gripping in the lower mould with go up between the mould, the lower mould with go up the common shutoff of mould the three through-hole of tee bend injection molding, the detection site department coating of tee bend injection molding has bubble water, the lower mould or be provided with on the lateral wall of last mould and communicate to the air supply pipe of tee bend injection molding inner chamber.
By adopting the technical scheme, the lower die and the upper die are respectively abutted to two ends of the three-way injection molding part and used for plugging three through holes of the three-way injection molding part, sealing operation is performed in a mechanical clamping mode, the sealing performance of the three through holes of the three-way injection molding part is improved, and therefore the accuracy of air tightness detection operation of the three-way injection molding part is effectively improved.
Preferably, one side of the lower die, which is close to the three-way injection molding piece, is provided with a rubber ring, and one side of the upper die, which is close to the three-way injection molding piece, is provided with a rubber layer.
Through adopting above-mentioned technical scheme, be provided with rubber ring and rubber layer respectively between tee bend injection molding and lower mould and the last mould, rubber ring and rubber layer have sealed effect, and the rubber ring and the rubber layer of flexible material can passive deformation in order to close the small tongue and groove of tee bend injection molding through-hole edge in the extruded in-process, have further improved the leakproofness of tee bend injection molding through-hole department, have improved the degree of accuracy that tee bend injection molding gas tightness detected the operation.
Preferably, a vent groove is formed in one side, close to the three-way injection molded part, of the lower die, an opening of the vent groove is arranged towards the three-way injection molded part, the vent groove penetrates through the rubber ring, the vent groove is communicated with an inner cavity of the three-way injection molded part, an air supply pipe is arranged on the side wall of the lower die, and the air supply pipe penetrates through the side wall of the lower die and is communicated to the interior of the vent groove.
By adopting the technical scheme, the air supply pipe is communicated to the inside of the three-way injection molding part through the air grooves in the lower die, air is introduced into the three-way injection molding part, the air pressure difference inside and outside the three-way injection molding part is improved, the air tightness detection operation is carried out, when bubbles are generated at the bending part of the flow dividing pipe, the three-way injection molding part is unqualified, and otherwise, the three-way injection molding part is qualified through the air tightness detection.
Preferably, the abutting part is arranged to be a driving cylinder, and one side, far away from the three-way injection molding part, of the upper die is fixedly connected to a driving shaft of the driving cylinder.
Through adopting above-mentioned technical scheme, move towards the tee bend injection molding through driving actuating cylinder drive mould to the realization is to the tight seal of clamp of tee bend injection molding, drives the automatic clamping process that compresses tightly of actuating cylinder and provides the convenience for the centre gripping operation of tee bend injection molding, and then has improved the operating efficiency that the gas tightness detected.
Preferably, one side of the lower die, which is close to the three-way injection molding piece, is fixedly connected with a limiting column, the limiting column penetrates through the rubber ring and penetrates through an access hole of the three-way injection molding piece, the limiting column is in clearance fit with the inner wall of the three-way injection molding piece, and the vent groove penetrates through the limiting column and is communicated to the inner cavity of the three-way injection molding piece.
Through adopting above-mentioned technical scheme, spacing post has spacing effect, has restricted the skew of tee bend injection molding towards week side, has improved the installation stability of tee bend injection molding on the lower mould.
Preferably, the opening of the vent groove is provided with a sealing plug, the sealing plug blocks the opening of the vent groove and abuts against the end part of the inner tube in the three-way injection molding part, and the side edge of the sealing plug is provided with an air supply hole which is communicated with the shunt tube in the three-way injection molding part and the vent groove.
Through adopting above-mentioned technical scheme, the sealing plug shutoff inner tube is close to the export of lower mould, and the air supply hole communicates to the intermediate layer of mainstream pipe and inner tube for during the gas in the air supply pipe lets in the shunt tubes, so that detect the gas tightness condition of shunt tubes kink.
Preferably, be provided with the air supply pipe on going up the lateral wall of mould, upward open in the mould and be equipped with air feed channel, air feed channel's entry is located go up the lateral wall of mould, and communicate to in the air supply pipe, air feed channel's export communicate to the inner chamber of tee bend injection molding.
Through adopting above-mentioned technical scheme, the air supply pipe communicates to the inside of tee bend injection molding through the air feed channel in last mould to let in gas in to the tee bend injection molding, improve the inside and outside atmospheric pressure difference of tee bend injection molding, so that carry out the gas tightness and detect the operation.
Preferably, the tightening piece is a tightening screw, the tightening screw is in threaded connection with the frame body, and the tightening screw is rotationally connected to one side, far away from the three-way injection molding piece, of the upper die.
Through adopting above-mentioned technical scheme, support tight screw rod and drive and go up the mould and remove towards the tee bend injection molding to realize the tight seal of clamp of tee bend injection molding, and support the auto-lock nature of tight screw rod and have locking effect, can realize the stable centre gripping of tee bend injection molding, secondly, support tight screw rod simple structure, can effectively reduce gas tightness check out test set's manufacturing cost and use cost.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the lower die and the upper die are respectively abutted against two ends of the three-way injection molding part and used for plugging three through holes of the three-way injection molding part, and sealing operation is performed in a mechanical clamping mode, so that the sealing performance of the three through holes of the three-way injection molding part is improved, and the accuracy of air tightness detection operation of the three-way injection molding part is effectively improved;
2. the rubber ring and the rubber layer have a sealing effect, the rubber ring and the rubber layer made of flexible materials can be passively deformed in the extruding process to seal the small concave-convex seams at the edges of the through holes of the three-way injection molding part, the sealing performance of the through holes of the three-way injection molding part is further improved, and the air tightness detection operation accuracy of the three-way injection molding part is improved.
Drawings
FIG. 1 is a cross-sectional view of a three-way injection molded part;
FIG. 2 is a schematic view of the entire structure of embodiment 1;
FIG. 3 is a cross-sectional view at the lower die in embodiment 1, showing the fitting relationship of the three-way injection molded article and the lower die;
FIG. 4 is a sectional view at the upper die in embodiment 1 for showing the internal mechanism of the upper die;
FIG. 5 is a front view of embodiment 1;
FIG. 6 is a schematic view of the entire structure of embodiment 2;
FIG. 7 is a partial sectional view of embodiment 2, showing the internal structure of the lower mold and the fitting relationship of the lower mold and the three-way injection molded part;
FIG. 8 is a schematic view of the structure of the lower mold in embodiment 2.
Reference numerals: 0. a three-way injection molding piece; 01. a main flow pipe; 011. an access hole; 012. a main through-out hole; 02. a shunt tube; 021. an auxiliary through hole; 03. an inner tube; 1. a frame body; 11. a top plate; 12. a base plate; 13. a support pillar; 2. a lower die; 21. a limiting column; 22. a rubber ring; 23. a vent channel; 231. a snap ring; 24. a sealing plug; 241. an air supply hole; 31. tightly abutting against the screw rod; 32. a knob; 33. a connecting disc; 34. a driving cylinder; 341. a drive shaft; 4. an upper die; 41. connecting grooves; 42. a limiting ring; 43. a rubber layer; 44. a gas supply channel; 5. a gas supply pipe.
Detailed Description
The present application is described in further detail below with reference to figures 2-8.
The embodiment of the application discloses gas tightness check out test set of tee bend injection molding.
Example 1
Referring to fig. 2, the gas tightness check out test set of tee bend injection molding includes support body 1 of vertical setting, and the bottom of support body 1 is provided with lower mould 2, and the top of support body 1 is provided with supports the piece, supports the bottom of piece and is provided with mould 4, supports the piece, goes up mould 4 and lower mould 2 from the top down and arranges in proper order, and coaxial setting. Three-way injection molding 0 centre gripping is between lower mould 2 and last mould 4, and lower mould 2 and last mould 4 can the three through-hole of shutoff three-way injection molding 0, have improved the leakproofness of 0 three through-hole department of three-way injection molding to the degree of accuracy of 0 gas tightness detection operation of three-way injection molding has effectively been improved.
The support body 1 comprises a top plate 11 and a bottom plate 12 which are arranged up and down, wherein the top plate 11 and the bottom plate 12 are horizontally arranged and are arranged in a rectangular plate shape. Vertically be provided with support column 13 between roof 11 and bottom plate 12, in this application embodiment, the quantity of support column 13 sets up to two, and is close to the both ends setting of bottom plate 12 respectively, and the bottom of support column 13 welds in the last top surface of bottom plate 12, and screw fixed connection is passed through in the lower bottom surface of roof 11 on the top of support column 13.
Referring to fig. 3, in the embodiment of the present application, the lower mold 2 is generally cylindrical, the axis of the lower mold 2 is vertically disposed, and the lower mold 2 is fixedly connected to the top surface of the bottom plate 12 by screws. The top end of the lower die 2 is integrally provided with a limiting column 21, and the limiting column 21 is arranged to be a cylinder and is coaxial with the lower die 2. The top surface of lower mould 2 is provided with rubber ring 22, and rubber ring 22 level sets up, and the outside of spacing post 21 is located to rubber ring 22 cover to the adhesion is in the last top surface of lower mould 2.
Three-way injection molding 0 is vertical to be set up, and the bottom butt in the rubber ring 22 of 2 top surfaces of lower mould, and spacing post 21 is pegged graft with the bottom of three-way injection molding 0 and is cooperated, has spacing effect to three-way injection molding 0, has restricted three-way injection molding 0 towards week side's skew, has improved three-way injection molding 0 installation stability on lower mould 2.
Referring to fig. 2 and 4, in the embodiment of the present application, the fastening member is configured to be a fastening screw 31, the fastening screw 31 is vertically disposed, and the fastening screw 31 penetrates through and is screwed to the top plate 11. The top end of the abutting screw 31 is horizontally provided with a knob 32, the knob 32 and the abutting screw 31 are integrally formed, and the abutting screw 31 can move up and down relative to the top plate 11 by rotating the knob 32. The bottom end of the abutting screw 31 is horizontally provided with a connecting disc 33, the connecting disc 33 and the abutting screw 31 are coaxially arranged, and the abutting screw 31 penetrates through the connecting disc 33 and is fixedly connected with the connecting disc 33 through threads.
Go up mould 4 and be located the bottom of roof 11, go up mould 4 and wholly be cylindricly setting, and go up the vertical setting of mould 4's axis. Go up the top of mould 4 and seted up connecting groove 41, connecting groove 41 sets up to cylindricly, and the opening up, and connecting groove 41 sets up with last mould 4 is coaxial. The connecting disc 33 is located in the connecting groove 41 and is in clearance fit with the connecting groove 41.
The opening part of connecting groove 41 is provided with spacing ring 42, and spacing ring 42 and the coaxial setting of connecting groove 41, spacing ring 42 cover establish and clearance fit support the outer wall of tight screw rod 31, and the outside of spacing ring 42 welds in the inner wall of connecting groove 41 to spacing ring 42's fixed mounting has been realized. The bottom surface of the retainer ring 42 abuts the top surface of the connection plate 33, and the retainer ring 42 restricts the connection plate 33 inside the connection groove 41. The abutting screw 31 penetrates through the limiting ring 42, extends into the connecting groove 41 and is fixedly connected with the connecting disc 33. When the tightening screw 31 moves up and down, the upper die 4 moves up and down, and the upper die 4 does not rotate with the rotation of the tightening screw 31.
Referring to fig. 5, the rubber layer 43 is provided on the bottom surface of the upper mold 4, the rubber layer 43 is provided in a disk shape and is provided coaxially with the upper mold 4, and the rubber layer 43 is adhered to the bottom surface of the upper mold 4. When going up mould 4 and the common centre gripping tee bend injection molding 0 of lower mould 2, rubber layer 43 and rubber ring 22 have sealed effect, and the rubber layer 43 and the rubber ring 22 of flexible material can passive deformation in order to seal the small tongue and groove of 0 through-hole edge of tee bend injection molding in the extruded in-process, have further improved the leakproofness of 0 through-hole department of tee bend injection molding, have improved the degree of accuracy that 0 gas tightness of tee bend injection molding detected the operation.
Referring to fig. 4 and 5, an air supply pipe 5 is provided on a sidewall of the upper mold 4, and an end of the air supply pipe 5 is screwed to the sidewall of the upper mold 4. Go up the inside of mould 4 and seted up gas supply channel 44, gas supply channel 44's entry is located the lateral wall of mould 4 to communicate with air supply pipe 5, gas supply channel 44's export is located the bottom surface of mould 4, runs through rubber layer 43, and communicates to the inner chamber of tee bend injection molding 0. The air supply pipe 5 can introduce air into the three-way injection molding part 0 through the air supply channel 44, so that the air pressure difference inside and outside the three-way injection molding part 0 is improved, and the air tightness detection operation is conveniently carried out.
The implementation principle of the embodiment 1 is as follows:
the staff will wait to detect tee bend injection molding 0 of gas tightness and place on lower mould 2, and the bottom butt of tee bend injection molding 0 is on the rubber ring 22 of lower mould 2 top surface, and tee bend injection molding 0 cover is established on spacing post 21. And rotating the knob 32 to enable the abutting screw 31 to drive the upper die 4 to move towards the top end of the three-way injection molding part 0, and clamping the three-way injection molding part 0 by the upper die 4 and the lower die 2.
And then, coating bubble water on the bent part of the shunt pipe 02 of the three-way injection molding part 0, introducing gas into the inner cavity of the three-way injection molding part 0 through the gas supply pipe 5, observing the bent part of the shunt pipe 02 of the three-way injection molding part 0, if bubbles are generated, indicating that the three-way injection molding part 0 is an unqualified product, and if no bubbles are generated in a specified time, indicating that the three-way injection molding part 0 is a qualified product.
Example 2
Referring to fig. 6 and 7, the present embodiment is different from embodiment 1 in that the fastening member is provided as a driving cylinder 34, the driving cylinder 34 is vertically provided, and the bottom end is fixedly connected to the upper top surface of the top plate 11. The bottom end of the driving cylinder 34 is provided with a driving shaft 341, the driving shaft 341 is vertically arranged, and the driving shaft 341 penetrates through the top plate 11 and is in threaded connection with the top end of the upper die 4, so that the upper die 4 is fixedly mounted on the driving shaft 341 of the driving cylinder 34. In the embodiment of the application, the upper die 4 is arranged to be cylindrical, the axis of the upper die is vertically arranged, and the bottom end of the upper die 4 is adhered with the rubber layer 43.
Referring to fig. 7 and 8, the lower mold 2 is provided with a vent groove 23 along the axis thereof, and the vent groove 23 penetrates through the limiting column 21 and is provided with an upward opening. The opening part of air channel 23 is provided with sealing plug 24, and sealing plug 24 is whole to be cylindric setting, in the embodiment of this application, sealing plug 24 is the rubber material, sealing plug 24 and air channel 23 interference fit, and sealing plug 24's bottom level is provided with joint ring 231, and joint ring 231 is whole to be the setting of semicircle ring-type, and welds in the inner wall of air channel 23 for butt sealing plug 24 realizes the axial fixity to sealing plug 24. The diameter of the sealing plug 24 is larger than the aperture of the inner tube 03, and the sealing plug 24 abuts against and seals the bottom opening of the inner tube 03.
An air supply hole 241 is vertically formed at one side of the sealing plug 24, the air supply hole 241 is disposed apart from the clamping ring 231, and the air supply hole 241 communicates with the vent groove 23 and the shunt tube 02. An air supply pipe 5 is arranged on the side wall of the lower die 2, and the air supply pipe 5 is in threaded connection with the side wall of the lower die 2 and communicated to the vent groove 23. The gas in the gas supply pipe 5 passes through the vent grooves 23 and the gas supply holes 241 in sequence, and is introduced into the shunt pipes 02 through the interlayer of the main flow pipe 01 and the inner pipe 03 so as to detect the airtightness of the bent parts of the shunt pipes 02.
The implementation principle of the embodiment 2 is as follows:
the staff will wait to detect tee bend injection molding 0 of gas tightness and place on lower mould 2, and the bottom butt of tee bend injection molding 0 is on the rubber ring 22 of 2 top surfaces of lower mould, and the cover of tee bend injection molding 0 is established on spacing post 21, and the bottom opening of 0 inner tube 03 of sealing plug 24 butt and shutoff tee bend injection molding. And the driving air cylinder 34 is used for abutting the upper die 4 against the top end of the three-way injection molding part 0, so that the three-way injection molding part 0 is clamped.
And then, coating bubble water at the bent part of the shunt pipe 02 of the three-way injection molding part 0, and introducing gas into the inner cavity of the three-way injection molding part 0 through the gas supply pipe 5. The upper die 4 and the sealing plug 24 respectively seal the main through hole 012 and the bottom opening of the inner tube 03, so that the gas in the gas supply tube 5 can only pass through the vent groove 23 and the gas supply hole 241 in sequence and then enter the shunt tube 02, and the gas tightness detection operation of the bent part of the shunt tube 02 is performed. And (3) observing the bent part of the shunt pipe 02 of the three-way injection molding piece 0, if bubbles are generated, the three-way injection molding piece 0 is a non-qualified product, and if no bubbles are generated within a specified time, the three-way injection molding piece 0 is a qualified product.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides an air tightness check out test set of tee bend injection molding, a serial communication port, including support body (1), be provided with on support body (1) and support piece (3), still be provided with lower mould (2) on support body (1), it is close to support piece (3) go up mould (4) on one side fixedly connected with of lower mould (2), tee bend injection molding (0) centre gripping in lower mould (2) with go up between mould (4), lower mould (2) with go up the common shutoff of mould (4) the three through-hole of tee bend injection molding (0), the detection site department coating of tee bend injection molding (0) has the bubble water, lower mould (2) or be provided with on the lateral wall of last mould (4) and communicate to air supply pipe (5) of tee bend injection molding (0) inner chamber.
2. The device for detecting the air tightness of the three-way injection molding part according to claim 1, wherein a rubber ring (22) is arranged on one side of the lower mold (2) close to the three-way injection molding part (0), and a rubber layer (43) is arranged on one side of the upper mold (4) close to the three-way injection molding part (0).
3. The apparatus for detecting the airtightness of a three-way injection molded part according to claim 2, wherein a vent groove (23) is formed in a side of the lower mold (2) close to the three-way injection molded part (0), an opening of the vent groove (23) is disposed toward the three-way injection molded part (0), the vent groove (23) penetrates through the rubber ring (22), the vent groove (23) communicates with an inner cavity of the three-way injection molded part (0), an air supply pipe (5) is disposed on a side wall of the lower mold (2), and the air supply pipe (5) penetrates through a side wall of the lower mold (2) and communicates into the vent groove (23).
4. The device for detecting the tightness of a three-way injection molded part according to claim 3, wherein the retaining member (3) is provided as a driving cylinder (34), and the side of the upper mold (4) remote from the three-way injection molded part (0) is fixedly connected to a driving shaft (341) of the driving cylinder (34).
5. The device for detecting the air tightness of the three-way injection molding part according to claim 4, wherein a limiting column (21) is fixedly connected to one side of the lower mold (2) close to the three-way injection molding part (0), the limiting column (21) penetrates through the rubber ring (22) and penetrates through the access hole (011) of the three-way injection molding part (0), the limiting column (21) is in clearance fit with the inner wall of the three-way injection molding part (0), and the vent groove (23) penetrates through the limiting column (21) and is communicated to the inner cavity of the three-way injection molding part (0).
6. The device for detecting the air tightness of the three-way injection molded part according to claim 5, wherein the opening of the vent groove (23) is provided with a sealing plug (24), the sealing plug (24) blocks the opening of the vent groove (23) and abuts against the end of the inner tube (03) in the three-way injection molded part (0), and an air supply hole (241) for communicating the shunt tube (02) in the three-way injection molded part (0) with the vent groove (23) is formed in the side edge of the sealing plug (24).
7. The air tightness detection device of the three-way injection molding part according to claim 2, characterized in that an air supply pipe (5) is arranged on the side wall of the upper mold (4), an air supply channel (44) is arranged in the upper mold (4), the inlet of the air supply channel (44) is located on the side wall of the upper mold (4) and is communicated to the air supply pipe (5), and the outlet of the air supply channel (44) is communicated to the inner cavity of the three-way injection molding part (0).
8. The device for detecting the air tightness of the three-way injection molding part according to claim 7, wherein the abutting piece (3) is provided as an abutting screw rod (31), the abutting screw rod (31) is in threaded connection with the frame body (1), and the abutting screw rod (31) is rotatably connected to one side of the upper mold (4) away from the three-way injection molding part (0).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121699122.6U CN214793663U (en) | 2021-07-24 | 2021-07-24 | Air tightness detection equipment for three-way injection molding piece |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121699122.6U CN214793663U (en) | 2021-07-24 | 2021-07-24 | Air tightness detection equipment for three-way injection molding piece |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114216398A (en) * | 2021-12-11 | 2022-03-22 | 上海万卡信实业有限公司 | High-speed transmission harness automatic detection device |
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2021
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114216398A (en) * | 2021-12-11 | 2022-03-22 | 上海万卡信实业有限公司 | High-speed transmission harness automatic detection device |
| CN114216398B (en) * | 2021-12-11 | 2024-05-14 | 上海万卡信实业有限公司 | Automatic detection device for high-speed transmission wire harness |
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