CN207390450U - Paster type resistor loading and unloading system and the production equipment comprising the loading and unloading system - Google Patents

Paster type resistor loading and unloading system and the production equipment comprising the loading and unloading system Download PDF

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Publication number
CN207390450U
CN207390450U CN201721302253.XU CN201721302253U CN207390450U CN 207390450 U CN207390450 U CN 207390450U CN 201721302253 U CN201721302253 U CN 201721302253U CN 207390450 U CN207390450 U CN 207390450U
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China
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pallet
module
horizontal
loading
unloading system
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CN201721302253.XU
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张健
温子松
吴建万
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Huizhou Darong Electronic Technology Co Ltd
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Huizhou Darong Electronic Technology Co Ltd
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Abstract

The utility model discloses a kind of paster type resistor loading and unloading system and the production equipment comprising the loading and unloading system.Loading and unloading system includes feeding device, blanking device.Feeding device includes:Horizontal cross driving module, horizontal zigzag tread patterns module, pallet bearing seat, support holder structure, transfer robot arm;The horizontal cross driving horizontal zigzag tread patterns module of module driving is moved back and forth along horizontal cross, and horizontal zigzag tread patterns module driving pallet bearing seat is moved along level is longitudinally reciprocal;Support holder structure is positioned on pallet bearing seat;Transfer robot arm includes:Horizontal drive module, vertical lifting module, transfer vacuum slot, horizontal drive module driving vertical lifting module move back and forth in the horizontal direction, and vertical lifting module driving transfer vacuum slot vertically back and forth lifts.Paster type resistor in material tray can preferably be taken out and carry out feeding by feeding device, and blanking device can be preferably by the paster type resistor blanking after detection in material tray.

Description

Paster type resistor loading and unloading system and the production equipment comprising the loading and unloading system
Technical field
The utility model is related to paster type resistor technical field, more particularly to a kind of paster type resistor loading and unloading system and Production equipment comprising the loading and unloading system.
Background technology
Paster type resistor have it is small, light-weight, packing density is high, shock resistance is strong, strong antijamming capability, high frequency characteristics The advantages that good, is widely used in computer, mobile phone, e-dictionary, medical electronics product, video camera, electronic electric meter and VCD machines Deng.Surface mount elements can be divided into rectangle, cylinder and special-shaped three classes in shape.There are resistor, capacitor, inductance by species point Device, transistor and Small Scale Integration etc..
It is taken pictures detection in the production process of paster type resistor, it is necessary to carry out CCD to paster type resistor, to filter out non-defective unit With defective products.
Paster type resistor would generally be positioned in material tray, how preferably to be taken the paster type resistor in material tray Go out and carry out feeding, how preferably by the paster type resistor blanking after detection in material tray, so as to improve patch type The mechanical automation production level of resistance, this is research staff's technical issues that need to address of enterprise.
Utility model content
The purpose of the utility model is to overcome shortcomings of the prior art, provide a kind of paster type resistor loading and unloading system System and the production equipment comprising the loading and unloading system, the paster type resistor in material tray is preferably taken out and carry out feeding, Preferably by the paster type resistor blanking after detection in material tray, so as to improve the machine automatization metaplasia of paster type resistor Production is horizontal.
The purpose of this utility model is achieved through the following technical solutions:
A kind of loading and unloading system, including:Feeding device, blanking device;The structure of the blanking device is filled with the feeding The structure put is identical;
The feeding device includes:Horizontal cross driving module, horizontal zigzag tread patterns module, pallet bearing seat, pallet knot Structure, transfer robot arm;
The horizontal cross driving module drives the horizontal zigzag tread patterns module to be moved back and forth along horizontal cross, the water Flat zigzag tread patterns module drives the pallet bearing seat to be moved along level is longitudinally reciprocal;
The support holder structure is positioned on the pallet bearing seat;
The transfer robot arm includes:Horizontal drive module, vertical lifting module, transfer vacuum slot, the horizontal drive Dynamic model group drives the vertical lifting module to move back and forth in the horizontal direction, and the vertical lifting module drives the transfer vacuum Suction nozzle vertically back and forth lifts.
In one of the embodiments, the pallet bearing seat includes:Tray support plate, pallet located lateral bar, pallet Radius rod, the pallet located lateral bar are fixed on the tray support plate and extend along horizontal cross, the pallet Radius rod is fixed on the tray support plate and along horizontal Longitudinal extending, the pallet located lateral bar and the pallet Radius rod is in T-shaped connection, and the tray support plate is longitudinally fixed by the pallet located lateral bar and the pallet Position bar forms the first pallet rest area of " L " font semi open model structure and the second pallet of " L " font semi open model structure is put Put area;
The support holder structure is positioned in the first pallet rest area or in the second pallet rest area, or both Have.
In one of the embodiments, the horizontal cross driving module is motor lead screw driving structure.
In one of the embodiments, the horizontal zigzag tread patterns module is motor lead screw driving structure.
In one of the embodiments, the horizontal drive module is motor lead screw driving structure.
In one of the embodiments, the vertical lifting module is cylinder driving structure.
A kind of production equipment including above-mentioned loading and unloading system, further includes detecting system;
The detecting system includes:Transportation turntable, top detection device, floor detection device, side detection device;
Wherein, the feeding device, the top detection device, the floor detection device, the side detection device, The blanking device is surrounded on the transportation turntable and sets successively.
For loading and unloading system by setting feeding device and blanking device, feeding device can preferably will be in material tray Paster type resistor takes out and carries out feeding, and blanking device can be preferably by the paster type resistor blanking after detection in material support In disk, automation level is improved.
Description of the drawings
Fig. 1 is the structure chart of the production equipment for paster type resistor of one embodiment of the utility model;
Fig. 2 is the Local map (one) of feeding device shown in FIG. 1;
Fig. 3 is the Local map (two) of feeding device shown in FIG. 1;
Fig. 4 is the structure chart of defective products blanking assembly line shown in FIG. 1;
Fig. 5 is the structure chart of top detection device shown in FIG. 1;
Fig. 6 is the structure chart of floor detection device shown in FIG. 1;
Fig. 7 is the structure chart of side detection device shown in FIG. 1.
Specific embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings It states.The better embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms It realizes, however it is not limited to embodiments described herein.On the contrary, the purpose of providing these embodiments is that make new to this practicality The more thorough and comprehensive that the disclosure of type understands.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ", For illustrative purposes only, it is unique embodiment to be not offered as " right side " and similar statement.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to the technology of the utility model The normally understood meaning of technical staff in domain is identical.It is simply in the term used in the description of the utility model herein The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " bag Include the arbitrary and all combination of one or more relevant Listed Items.
As shown in Figure 1, a kind of production equipment 10 for paster type resistor, including:Loading and unloading system, detecting system.Institute Stating loading and unloading system includes:Feeding device 100, blanking device 200.The detecting system includes:Transportation turntable 300, top inspection Survey device 400, floor detection device 500, side detection device 600.Wherein, feeding device 100, top detection device 400, bottom Portion's detection device 500, side detection device 600, blanking device 200 are surrounded on transportation turntable 300 and set successively.
Feeding device 100 is used for by paster type resistor feeding in transportation turntable 300, and transportation turntable 300 is used for patch Formula resistance transports to each station the processing for carrying out corresponding technique, and top detection device 400 is used for the top to paster type resistor Detection of taking pictures is carried out, floor detection device 500 is used to carry out detection of taking pictures, side detection device to the bottom of paster type resistor 600 for carrying out the side of paster type resistor detection of taking pictures, and blanking device 200 is used for completing the paster type resistor after detecting Carry out blanking recycling.
As shown in Figures 2 and 3, in the following, being illustrated to the concrete structure of feeding device 100:
Feeding device 100 includes:Horizontal cross driving module 110, horizontal zigzag tread patterns module 120, pallet bearing seat 130th, support holder structure 140 (as shown in Figure 1), transfer robot arm 150 (as shown in Figure 1).
Horizontal cross driving module 110 drives horizontal zigzag tread patterns module 120 to be moved back and forth along horizontal cross, horizontal longitudinal direction Driving module 120 drives pallet bearing seat 130 to be moved along level is longitudinally reciprocal.Support holder structure 140 is positioned over pallet bearing seat 130 On.
Pallet bearing seat 130 includes:Tray support plate 131, pallet located lateral bar 132, pallet radius rod 133. Pallet located lateral bar 132 is fixed on tray support plate 131 and extends along horizontal cross, and pallet radius rod 133 is fixed In on tray support plate 131 and along horizontal Longitudinal extending, pallet located lateral bar 132 is in " T " word with pallet radius rod 133 Shape connects, and it is semi-open that tray support plate 131 by pallet located lateral bar 132 forms " L " font with pallet radius rod 133 First pallet rest area 134 of formula structure and the second pallet rest area 135 of " L " font semi open model structure.
Support holder structure 140 be positioned in the first pallet rest area 134 or in the second pallet rest area 135, or both all Have.
Transfer robot arm 150 includes:Horizontal drive module 151, vertical lifting module 152, transfer vacuum slot 153.Water Flat driving module 151 drives vertical lifting module 152 to move back and forth in the horizontal direction, and the driving transfer of vertical lifting module 152 is true The vertically reciprocal lifting of suction mouth 153.
In the following, the structure of blanking device 200 is specifically described:
The structure of blanking device 200 is identical with the structure of feeding device 100, and distinctive points are:Blanking device 200 further includes Defective products blanking assembly line 210 (as shown in Figure 1) is additionally provided on the vertical lifting module of the transfer robot arm of blanking device 200 Defective products crushes blanking clamping jaw 220 (as shown in Figure 3).Defective products crush blanking clamping jaw 220 for grip be detected as defective products Paster type resistor is transferred at defective products blanking assembly line 210, while the paster type resistor of defective products is crushed place as clamping type Reason, prevents the paster type resistor for being detected as defective products to be misused and re-use, improves the yields of production.
The operation principle of loading and unloading system is illustrated:
Feeding device 100 is used for by paster type resistor feeding in transportation turntable 300, and paster type resistor is relevant in completion It after technological operation, reaches at blanking device 200, blanking device 200 is used to carry out blanking to completing the paster type resistor after detecting Recycling;
Horizontal cross driving module 110 drives horizontal zigzag tread patterns module 120 to be moved back and forth along horizontal cross, horizontal longitudinal direction Driving module 120 drives pallet bearing seat 130 to be moved along level is longitudinally reciprocal, and support holder structure is placed on pallet bearing seat 130 140, support holder structure 140 is interior to have paster type resistor to be processed, so that support holder structure 140 can be accurate to up to specific bit It puts, transfer robot arm 150 is facilitated accurately to draw the paster type resistor in support holder structure 140 into transportation turntable 300;
Horizontal drive module 151 drives vertical lifting module 152 to move back and forth in the horizontal direction, vertical lifting module 152 The vertically reciprocal lifting of transfer vacuum slot 153 is driven, transfer vacuum slot 153 is in horizontal drive module 151 and vertically It is realized under the action of lifting module 152 by the paster type resistor in support holder structure 140 into transportation turntable 300;
Similarly, the paster type resistor in transportation turntable 300 is transferred to pallet and held by the transfer robot arm of blanking device 200 In the support holder structure for carrying seat, the blanking of paster type resistor is realized.
It is noted that especially being optimized to the structure of pallet bearing seat 130, pallet located lateral bar 132 is solid Extend due on tray support plate 131 and along horizontal cross, pallet radius rod 133 is fixed on tray support plate 131 simultaneously Along horizontal Longitudinal extending, pallet located lateral bar 132 is with pallet radius rod 133 in T-shaped connection, tray support plate 131 form the first pallet of " L " font semi open model structure by pallet located lateral bar 132 and pallet radius rod 133 Rest area 134 and the second pallet rest area 135 of " L " font semi open model structure.On the one hand, formed on tray support plate 131 First pallet rest area 134 and the second pallet rest area 135, one of pallet rest area is for stocking up, and another holds in the palm Disk rest area is then for being fed, when the paster type resistor in the support holder structure in one of pallet rest area is all taken away Afterwards, the support holder structure in another pallet rest area can then be replenished in time, and prevent centre from reloading and cause production disruption The generation of phenomenon greatly improves the efficiency of production;On the other hand, pallet located lateral bar 132 and pallet radius rod 133 In T-shaped connection, so that the first pallet rest area 134 and the second pallet rest area 135 form " L " font semi open model Structure so that support holder structure 140 will not being positioned in the first pallet rest area 134 or the second pallet rest area 135 by clamping stagnation, Also it is more prone to take away from the first pallet rest area 134 or the second pallet rest area 135;In another aspect, pallet located lateral Bar 132 is in T-shaped connection with pallet radius rod 133 so that pallet located lateral bar 132 and pallet radius rod 133 play an important role of to position support holder structure 140, if by support holder structure 140 be positioned over the first pallet rest area 134 or In second pallet rest area 135, and the edge one formed along pallet located lateral bar 132 and pallet radius rod 133 Push away, can realize the positioning of support holder structure 140, facilitate manipulator accurately draw the paster type resistor in support holder structure 140 into Row feeding.
Similarly, the first pallet rest area and the second pallet rest area are set at blanking device 200, when one of pallet After support holder structure in rest area is fully loaded with paster type resistor, the support holder structure in another pallet rest area can then be replenished in time The phenomenon that coming over, preventing production from interrupting greatly improves the efficiency of production;Pallet at blanking device 200 is horizontal Locating rod also achieves the positioning to support holder structure with pallet radius rod, and manipulator is facilitated accurately to draw transportation turntable 300 In paster type resistor carry out blanking.
It is further noted that loading and unloading system further includes substrate 700 (as shown in Figure 1), feeding device 100 and blanking Device 200 is installed on substrate 700, and defective products material-dropping hole 710 (as shown in Figure 1) is offered on substrate 700.Stream under defective products Waterline 210 includes:Defective products blanking conveyer belt 211, defective products blanking connected structure 212.Defective products blanking connected structure 212 is held in the mouth It is connected between defective products material-dropping hole 710 and defective products blanking conveyer belt 211.
As shown in figure 4, specifically, defective products blanking connected structure 212 includes:Level tune screw rod 213, linking ramp 214.Being connected ramp 214 has rotation support feet 215, and linking ramp 214 is rotatably arranged on horizontal adjust by rotating support feet 215 It saves on screw rod 213, Level tune screw rod 213 is equipped with clamp nut 216, and rotation support feet 215 is by clamp nut 216 along water Square be fixed on to adjustable on Level tune screw rod 213, linking ramp 214 be connected in defective products material-dropping hole 710 with it is bad Between product blanking conveyer belt 211.It is connected ramp 214 by setting, it can be by the defective products patch type at defective products material-dropping hole 710 Resistance is directed at defective products blanking conveyer belt 211, then is transported defective products paster type resistor by defective products blanking conveyer belt 211 It is recycled to specifying at recycling.Particularly, rotation support feet 215 is adjusted in the horizontal direction by clamp nut 216 Be fixed on Level tune screw rod 213, and be connected ramp 214 by rotate support feet 215 rotatably be arranged on Level tune spiral shell On bar 213, defective products material-dropping hole can be corresponded into the adjusting of row position in the horizontal direction by being then connected 214 one side of ramp 710, on the other hand it can also be adjusted so that defective products paster type resistor can more accurately slide by rotating the progress gradient At defective products blanking conveyer belt 211.
In the present embodiment, horizontal cross drives module 110 as motor lead screw driving structure, horizontal zigzag tread patterns module 120 be motor lead screw driving structure, and horizontal drive module 151 is motor lead screw driving structure, and vertical lifting module 152 is cylinder Driving structure.
In the following, to transportation turntable 300, top detection device 400, floor detection device 500, side detection device 600 into Row illustrates:
Top detection device 400, floor detection device 500, side detection device 600 are surrounded on transportation turntable 300 successively It sets, top detection device 400 is used to carry out CCD detections, floor detection to the top of the paster type resistor on transportation turntable 300 Device 500 is used to carry out the bottom of the paster type resistor on transportation turntable 300 CCD detections, side detection device 600 for pair The side of paster type resistor on transportation turntable 300 carries out CCD detections.
As shown in Figure 1, transportation turntable 300 is equipped with fixed jig 310, offer on transportation turntable 300 and fixed jig 310 corresponding floor detection through hole (not shown), in the present embodiment, the quantity of fixed jig 310 is multiple, and multiple fixations are controlled The circular array centered on the rotation axis of transportation turntable 300 of tool 310 is distributed.
As shown in figure 5, top detection device 400 includes:Top detection supporting rack 410, top detection CCD420, top inspection Light source 430 is surveyed, top detection CCD420 and top detection light source 430, which are vertically adjusted, is fixed on top detection supporting rack On 410, the surface that light source 430 is located at transportation turntable 300 is detected at top detection CCD420 and top;In the present embodiment, push up Portion detection CCD420 is set away from transportation turntable 300, and top detection light source 430 is set close to transportation turntable 300.
As shown in fig. 6, floor detection device 500 includes:Floor detection supporting rack 510, floor detection CCD520, bottom inspection Light source 530 is surveyed, floor detection CCD520 and floor detection light source 530, which are vertically adjusted, is fixed on floor detection supporting rack On 510, floor detection CCD520 and floor detection light source 530 are located at the underface of transportation turntable 300;In the present embodiment, bottom Portion detection CCD520 is set away from transportation turntable 300, and floor detection light source 530 is set close to transportation turntable 300.
As shown in fig. 7, side detection device 600 includes:Side detection supporting rack 610, side detection CCD620, side inspection Light source 630 is surveyed, side detection CCD620 and side detection light source 630 are adjusted in the horizontal direction is fixed on side detection supporting rack On 610, the side that light source 630 is located at transportation turntable 300 is detected in side detection CCD620 and side.In the present embodiment, side Detection CCD620 is set away from transportation turntable 300, and side detection light source 630 is set close to transportation turntable 300.
The operation principle of detecting system is as follows:
Paster type resistor to be detected is mounted on fixed jig 310, fixed jig 310 is in the band to transportation turntable 300 Top detection device 400, floor detection device 500 are reached under dynamic successively, at side detection device 600, carry out top, bottom and The detection of side;
It detects the position of light source 430 in the vertical direction by detecting CCD420 and top to top and adjusts, so as to fulfill It is clearly taken pictures to the top surface of the paster type resistor on fixed jig 310 acquisition;By to floor detection CCD520 and bottom The position of portion's detection light source 530 in the vertical direction is adjusted, so as to fulfill the bottom surface to the paster type resistor on fixed jig 310 It is clearly taken pictures acquisition;CCD620 is detected by side and side is detected the position of light source 630 in the horizontal direction and adjusted, It is clearly taken pictures acquisition so as to fulfill the side to the paster type resistor on fixed jig 310.
It is noted that it is offered on transportation turntable 300 and 310 corresponding floor detection through hole of fixed jig, then, bottom Floor detection CCD520 in portion's detection device 500 can penetrate floor detection through hole, so as to fulfill the patch to fixed jig 310 The bottom surface of plate resistor is clearly taken pictures acquisition.
The production equipment 10 for paster type resistor of the utility model, by setting loading and unloading system and detecting system, And the structure of each system is optimized, feeding is carried out to paster type resistor, to each orientation of paster type resistor into Row CCD is detected, and is carried out blanking to paster type resistor, is improved the mechanical automation production level of paster type resistor.
Particularly, for loading and unloading system by setting feeding device 100 and blanking device 200, feeding device 100 can be more preferable The paster type resistor in material tray is taken out and carries out feeding, blanking device 200 can be preferably by the patch after detection Plate resistor blanking improves automation level in material tray.
Embodiment described above only expresses the several embodiments of the utility model, and description is more specific and detailed, But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this field For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.

Claims (7)

1. a kind of loading and unloading system, which is characterized in that including:Feeding device, blanking device;The structure of the blanking device and institute The structure for stating feeding device is identical;
The feeding device includes:Horizontal cross driving module, horizontal zigzag tread patterns module, pallet bearing seat, support holder structure, turn Move manipulator;
The horizontal cross driving module drives the horizontal zigzag tread patterns module to be moved back and forth along horizontal cross, described horizontal vertical To driving module the pallet bearing seat is driven to be moved along level is longitudinally reciprocal;
The support holder structure is positioned on the pallet bearing seat;
The transfer robot arm includes:Horizontal drive module, vertical lifting module, transfer vacuum slot, the horizontal drive mould Group drives the vertical lifting module to move back and forth in the horizontal direction, and the vertical lifting module drives the transfer vacuum slot Vertically reciprocal lifting.
2. loading and unloading system according to claim 1, which is characterized in that the pallet bearing seat includes:Tray support plate, Pallet located lateral bar, pallet radius rod, the pallet located lateral bar are fixed on the tray support plate and along water Flat to extend laterally, the pallet radius rod is fixed on the tray support plate and along horizontal Longitudinal extending, the pallet Located lateral bar with the pallet radius rod in T-shaped connection, by the pallet laterally determined by the tray support plate Position bar and the pallet radius rod formed " L " font semi open model structure the first pallet rest area and " L " font it is half-open Put the second pallet rest area of formula structure;
The support holder structure be positioned in the first pallet rest area or in the second pallet rest area, or both all Have.
3. loading and unloading system according to claim 1, which is characterized in that the horizontal cross driving module is motor lead screw Driving structure.
4. loading and unloading system according to claim 1, which is characterized in that the horizontal zigzag tread patterns module is motor lead screw Driving structure.
5. loading and unloading system according to claim 1, which is characterized in that the horizontal drive module drives for motor lead screw Structure.
6. loading and unloading system according to claim 1, which is characterized in that the vertical lifting module is cylinder driving knot Structure.
7. a kind of production equipment, which is characterized in that including the loading and unloading system described in any one in claim 1 to 6, also wrap Include detecting system;
The detecting system includes:Transportation turntable, top detection device, floor detection device, side detection device;
Wherein, the feeding device, the top detection device, the floor detection device, the side detection device, described Blanking device is surrounded on the transportation turntable and sets successively.
CN201721302253.XU 2017-10-09 2017-10-09 Paster type resistor loading and unloading system and the production equipment comprising the loading and unloading system Active CN207390450U (en)

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CN201721302253.XU CN207390450U (en) 2017-10-09 2017-10-09 Paster type resistor loading and unloading system and the production equipment comprising the loading and unloading system

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Application Number Priority Date Filing Date Title
CN201721302253.XU CN207390450U (en) 2017-10-09 2017-10-09 Paster type resistor loading and unloading system and the production equipment comprising the loading and unloading system

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109047035A (en) * 2018-08-03 2018-12-21 华侨大学 A kind of composite polycrystal-diamond surface defect automatic detection device
CN110449372A (en) * 2019-08-30 2019-11-15 成都宏明双新科技股份有限公司 Groove depth detection and balance equipment on a kind of electronic product
CN117148031A (en) * 2023-11-01 2023-12-01 深圳市业展电子有限公司 Automatic measuring equipment for temperature coefficient of resistance of precision alloy
CN117483273A (en) * 2023-12-29 2024-02-02 赣州山达士电子有限公司 Full-automatic intelligent ageing equipment for resistor porcelain rod

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109047035A (en) * 2018-08-03 2018-12-21 华侨大学 A kind of composite polycrystal-diamond surface defect automatic detection device
CN110449372A (en) * 2019-08-30 2019-11-15 成都宏明双新科技股份有限公司 Groove depth detection and balance equipment on a kind of electronic product
CN117148031A (en) * 2023-11-01 2023-12-01 深圳市业展电子有限公司 Automatic measuring equipment for temperature coefficient of resistance of precision alloy
CN117148031B (en) * 2023-11-01 2024-01-02 深圳市业展电子有限公司 Automatic measuring equipment for temperature coefficient of resistance of precision alloy
CN117483273A (en) * 2023-12-29 2024-02-02 赣州山达士电子有限公司 Full-automatic intelligent ageing equipment for resistor porcelain rod
CN117483273B (en) * 2023-12-29 2024-04-12 赣州山达士电子有限公司 Full-automatic intelligent ageing equipment for resistor porcelain rod

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