CN207548354U - A kind of Vertical traverse pcb board grinding device - Google Patents
A kind of Vertical traverse pcb board grinding device Download PDFInfo
- Publication number
- CN207548354U CN207548354U CN201721163347.3U CN201721163347U CN207548354U CN 207548354 U CN207548354 U CN 207548354U CN 201721163347 U CN201721163347 U CN 201721163347U CN 207548354 U CN207548354 U CN 207548354U
- Authority
- CN
- China
- Prior art keywords
- pcb board
- rocker piece
- screw thread
- support
- connecting shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The utility model discloses a kind of Vertical traverse pcb board grinding devices, including pedestal, X-axis feed mechanism, place mould, door frame, cylinder, guide rod, supporting plate, square tube, first support, rack, shaft, servo motor, gear, second support, speed regulating motor, nog plate mechanism, pcb board is positioned over and is placed in mould, cylinder downlink pushes template mechanism to be contacted with pcb board, speed regulating motor work drives nog plate mechanism to carry out nog plate processing to pcb board, servo motor work drives shaft rotation, so as to be rotated with moving gear, since wheel and rack engages, servo motor can drive nog plate mechanism to vertically move, simultaneously, X-axis feed mechanism can drive the pcb board transverse movement for being positioned over and placing in mould, so as to carry out automatic nog plate to pcb board.The apparatus structure is simple, can carry out nog plate processing to pcb board automatically, meanwhile, abrasive material contacts uniformly with pcb board, nog plate uniformly continuous, high degree of automation, meanwhile, integrated form design effectively reduces cost.
Description
Technical field
The utility model is related to a kind of mechanical device more particularly to a kind of Vertical traverse pcb board grinding devices.
Background technology
Printed wiring board, also known as pcb board are the supporters of electronic component, are the loads of electronic component electrical connection
Body, the complex manufacturing technology of pcb board, before green oil covering is carried out, it is necessary to it is surface-treated, and being surface-treated usually has two
Kind, one kind is physics nog plate, and another kind is chemical nog plate.
A. physics nog plate：Physics nog plate adds volcanic ash polishing, coarse surface generally by mill rumble.Basic principle be by
Rumble high-speed rotation is ground, nog plate is carried out to pcb board using volcanic ash as abrasive material, removes the sundries oxide on copper surface, is increased
The binding force of copper coin and green oil.
B. chemical nog plate：Chemical nog plate is micro- to the progress of copper surface by chemical medicinal liquid (H2SO4 and NPS pickling or alkali cleaning)
Erosion, to achieve the effect that be roughened copper face.Basic principle is the faint chemical reaction by NPS (i.e. sodium peroxydisulfate) and Cu, by plate
Cu roughening on face.
Solution after being reacted due to chemical nog plate easily leads to environmental pollution, many producers use physics nog plate, but existing
The mill rumble length for having physics nog plate equipment is longer, it is difficult to which abrasive material and pcb board uniformly are carried out contact nog plate, leads to nog plate effect
Difference, simultaneously as the situation of pcb board layers of copper destruction is easily occurring in the pure of some coarse abrasive materials.In view of disadvantages described above, having in fact must
Design a kind of Vertical traverse pcb board grinding device.
Utility model content
The purpose of this utility model is to provide a kind of Vertical traverse pcb board grinding device, the Vertical traverse pcb board grinding devices
Not only nog plate uniformity is good, but also integrated form designs, and without separately setting material-feeding mechanism, effectively reduces cost, meanwhile, it is floating type to set
Meter effectively prevent coarse abrasive material damage pcb board.
In order to solve the above technical problems, the technical solution of the utility model is：A kind of Vertical traverse pcb board grinding device, packet
It includes pedestal, X-axis feed mechanism, place mould, door frame, cylinder, guide rod, supporting plate, square tube, first support, rack, shaft, servo electricity
Machine, gear, second support, speed regulating motor, nog plate mechanism, the X-axis feed mechanism are located at pedestal upper end, the X-axis into
It is connected to mechanism with whorl of base, the placement mould is located at X-axis feed mechanism upper end, and the placement mould feeds machine with X-axis
Structure screw thread is connected, and the door frame is located at pedestal upper end, and the door frame is connected with whorl of base, and the cylinder is located at door frame
Upper end, the cylinder are connected with door frame screw thread, and the guide rod is through door frame and positioned at cylinder side, the guide rod and door
Frame gap is connected and is movably connected with cylinder, and the supporting plate is located at cylinder lower end and positioned at lower end of the guide rod, the supporting plate with
Cylinder screw thread is connected and is connected with guide rod screw thread, and the square tube is located at supporting plate lower end, and the square tube is connected with supporting plate screw thread,
The first support is located on the outside of square tube, and the first support is connected with square tube slip, and the rack is located under square tube
End, the rack are connected with square tube screw thread, and the shaft runs through first support, and the shaft rotates phase with first support
Even, the servo motor be located at shaft side and be located at stent side, the servo motor be connected with shaft key and with branch
Frame screw thread is connected, and the gear is located at rack lower end and is run through by shaft, and wheel and rack engagement is connected and with turning
Axis close-fitting is connected, and the second support is located at first support lower end, and the second support is connected with first support screw thread, institute
The speed regulating motor stated is located on the inside of second support, and the speed regulating motor is connected with second support screw thread, the nog plate mechanism
Positioned at speed regulating motor lower end, the nog plate mechanism is connected with speed regulating motor screw thread.
The utility model further improves as follows：
Further, the nog plate mechanism further include connecting shaft, rocker piece, elastomer block, bistrique, along the rocker piece pair
Arrangement quantity is referred to as the feed bin of 2, cushion chamber, elastic, the feeding-passage that quantity is no less than 2 is evenly distributed with along the elastomer block,
The connecting shaft is located at speed regulating motor lower end, and the connecting shaft is connected with speed regulating motor key, and the connecting shaft is through floating
Motion block, the rocker piece are connected with connecting shaft clearance, and the elastomer block is located at rocker piece lower end, and the elastomer block is with floating
Motion block screw thread is connected, and the bistrique is located at elastomer block lower end, and the bistrique is connected with elastomer block screw thread, the feed bin position
On the outside of rocker piece, the feed bin is weldingly connected with rocker piece, and the rocker piece is additionally provided with cushion chamber, the cushion chamber
At rocker piece lower central, the elastic is located at elastomer block upper end and in the cushion chamber, the elastic with
Elastomer block is integrally connected, and the rocker piece is additionally provided with feeding-passage, and the feeding-passage is with the intercommunication of feed bin cavity and with delaying
Chamber cavity intercommunication is rushed, adds in abrasive material into feed bin manually, abrasive material enters cushion chamber, then configured in elastomer block through feeding-passage
Distributing trough fall on pcb board, with the movement of bistrique, abrasive material can enter between bistrique and pcb board, when abrasive material enters bistrique
After between pcb board, elastomer block and elastic occur micro-strain and abrasive material pressure are attached to PCB surface, pre- so as to be carried out to pcb board
Nog plate is pressed, improves nog plate uniformity, meanwhile, when encountering coarse abrasive material, rocker piece can slide miniature distance along connecting shaft, prevent
Coarse abrasive wear pcb board.
Further, the connecting shaft is additionally provided with feather key, and the feather key is located on the outside of connecting shaft, and described leads
It is connected to key with connecting shaft close-fitting.
Further, the connecting shaft is additionally provided with spacing head, and the spacing head is located at connecting shaft lower end, the limit
Potential head is integrally connected with connecting shaft.
Further, the rocker piece is additionally provided with guide groove, and the guide groove is located on the inside of rocker piece, and the guide groove is not
Through rocker piece, feather key coordinates with guide groove, for rocker piece rotation and slide up and down.
Further, the elastomer block is additionally provided with distributing trough, and the distributing trough runs through elastic block main body.
Further, the distributing trough quantity is 2, is symmetrically arranged in elastomer block.
Further, the material of the elastomer block is rubber.
Further, the feed bin is additionally provided with feed bin lid, and the feed bin lid is located at feed bin upper end, the feed bin lid
It is connected with feed bin gap.
Compared with prior art, the Vertical traverse pcb board grinding device during work, pcb board is positioned over and is placed in mould, gas
Cylinder downlink pushes nog plate mechanism to be contacted with pcb board, and speed regulating motor work drives nog plate mechanism to carry out nog plate processing to pcb board, watches
It takes motor work and drives shaft rotation, so as to be rotated with moving gear, since wheel and rack engages, servo motor
Second support is driven to be vertically moved along square tube by first support, so as to which nog plate mechanism be driven to vertically move, meanwhile, X-axis feeding
Mechanism can drive the pcb board transverse movement for being positioned over and placing in mould, so as to carry out automatic nog plate to pcb board.The apparatus structure
Simply, nog plate processing can be carried out to pcb board automatically, meanwhile, abrasive material contacts uniformly with pcb board, nog plate uniformly continuous, automates journey
Degree is high, meanwhile, integrated form design effectively reduces cost.
Description of the drawings
Fig. 1 shows the utility model front view
Fig. 2 shows the utility model nog plate mechanism structure diagrams
Fig. 3 shows the utility model rocker piece vertical view
Fig. 4 shows the utility model elastomer block vertical view
1 X-axis feed mechanism 2 of pedestal
Place 3 door frame 4 of mould
5 guide rod 6 of cylinder
7 square tube 8 of supporting plate
9 rack 10 of first support
11 servo motor 12 of shaft
13 second support 14 of gear
15 nog plate mechanism 16 of speed regulating motor
1601 rocker piece 1602 of connecting shaft
1603 bistrique 1604 of elastomer block
1605 cushion chamber 1606 of feed bin
1607 feeding-passage 1608 of elastic
1609 spacing head 1610 of feather key
1611 distributing trough 1612 of guide groove
Feed bin lid 1613
Specific embodiment
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of Vertical traverse pcb board grinding device, including pedestal 1, X-axis feed mechanism 2,
Place mould 3, door frame 4, cylinder 5, guide rod 6, supporting plate 7, square tube 8, first support 9, rack 10, shaft 11, servo motor 12, gear
13rd, second support 14, speed regulating motor 15, nog plate mechanism 16, the X-axis feed mechanism 2 are located at 1 upper end of pedestal, the X-axis
Feed mechanism 2 is connected with 1 screw thread of pedestal, and the placement mould 3 is located at 2 upper end of X-axis feed mechanism, the placement mould 3 and X-axis
2 screw thread of feed mechanism is connected, and the door frame 4 is located at 1 upper end of pedestal, and the door frame 4 is connected with 1 screw thread of pedestal, described
Cylinder 5 is located at 4 upper end of door frame, and the cylinder 5 is connected with 4 screw thread of door frame, and the guide rod 6 is through door frame 4 and positioned at cylinder 5
Side, the guide rod 6 are connected with 4 gap of door frame and are movably connected with cylinder 5, and the supporting plate 7 is located at 5 lower end of cylinder and position
In 6 lower end of guide rod, the supporting plate 7 is connected with 5 screw thread of cylinder and is connected with 6 screw thread of guide rod, and the square tube 8 is located at supporting plate 7
Lower end, the square tube 8 are connected with 7 screw thread of supporting plate, and the first support 9 is located at 8 outside of square tube, the first support 9
It is connected with the slip of square tube 8, the rack 10 is located at 8 lower end of square tube, and the rack 10 is connected with 8 screw thread of square tube, described
Shaft 11 runs through first support 9, and the shaft 11 is rotatedly connected with first support 9, and the servo motor 12 is located at shaft
11 sides and positioned at stent side, the servo motor 12 is connected with 11 key of shaft and is connected with stent screw thread, the tooth
Wheel 13 is located at and 10 lower end of rack and is run through by shaft 11, the gear 13 engaged with rack 10 it is connected and with 11 close-fitting phase of shaft
Even, the second support 14 is located at 9 lower end of first support, and the second support 14 is connected with 9 screw thread of first support, described
Speed regulating motor 15 be located at the inside of second support 14, the speed regulating motor 15 is connected with 14 screw thread of second support, the mill
Trigger structure 16 is located at 15 lower end of speed regulating motor, and the nog plate mechanism 16 is connected with 15 screw thread of speed regulating motor, the Plate grinder
Structure 16 further includes connecting shaft 1601, rocker piece 1602, elastomer block 1603, bistrique 1604, is arranged symmetrically along the rocker piece 1602
Feed bin 1605 that quantity is 2, cushion chamber 1606, be evenly distributed with along the elastomer block 1603 quantity be no less than 2 elastic 1607,
Feeding-passage 1608, the connecting shaft 1601 are located at 15 lower end of speed regulating motor, the connecting shaft 1601 and speed regulating motor 15
Key is connected, and the connecting shaft 1601 runs through rocker piece 1602, and the rocker piece 1602 is connected with 1601 gap of connecting shaft, institute
The elastomer block 1603 stated is located at 1602 lower end of rocker piece, and the elastomer block 1603 is connected with 1602 screw thread of rocker piece, described
Bistrique 1604 is located at 1603 lower end of elastomer block, and the bistrique 1604 is connected with 1603 screw thread of elastomer block, the feed bin 1605
Positioned at 1602 outside of rocker piece, the feed bin 1605 is weldingly connected with rocker piece 1602, and the rocker piece 1602 is additionally provided with
Cushion chamber 1606, the cushion chamber 1606 are located at 1602 lower central of rocker piece, and the elastic 1607 is located at elasticity
1603 upper end of block and in the cushion chamber 1606, the elastic 1607 is integrally connected with elastomer block 1603, the floating
Block 1602 is additionally provided with feeding-passage 1608, the feeding-passage 1608 with 1605 cavity intercommunication of feed bin and with 1606 chamber of cushion chamber
Body intercommunication, adds in abrasive material into feed bin 1605 manually, and abrasive material enters cushion chamber 1606, then configured in bullet through feeding-passage 1608
Property block 1603 on distributing trough 1612 fall on pcb board, with the movement of bistrique 1604, abrasive material can enter bistrique 1604 with
Between pcb board, after abrasive material enters between bistrique 1604 and pcb board, micro-strain occurs for elastomer block 1603 and elastic 1607
Abrasive material pressure is attached to PCB surface, so as to carry out precompressed nog plate to pcb board, improves nog plate uniformity, meanwhile, when encountering coarse mill
During material, rocker piece 1602 can slide miniature distance along connecting shaft 1601, prevent coarse abrasive wear pcb board, the connecting shaft
1601 are additionally provided with feather key 1609, and the feather key 1609 is located at 1601 outside of connecting shaft, and the feather key 1609 is with connecting
1601 close-fitting of spindle is connected, and the connecting shaft 1601 is additionally provided with spacing head 1610, and the spacing head 1610 is located at connecting shaft
1601 lower ends, the spacing head 1610 are integrally connected with connecting shaft 1601, and the rocker piece 1602 is additionally provided with guide groove 1611,
The guide groove 1611 is located at the inside of rocker piece 1602, the guide groove 1611 not through rocker piece 1602, feather key 1609 with
Guide groove 1611 coordinates, for rocker piece 1602 rotation and slide up and down, the elastomer block 1603 is additionally provided with distributing trough 1612,
The distributing trough 1612 runs through 1603 main body of elastomer block, and 1612 quantity of distributing trough is 2, is symmetrically arranged in elastomer block
1603, the material of the elastomer block 1603 is rubber, and the feed bin 1605 is additionally provided with feed bin lid 1613, the feed bin lid
1613 are located at 1605 upper end of feed bin, and the feed bin lid 1613 is connected with 1605 gap of feed bin, Vertical traverse pcb board nog plate dress
It puts, during work, pcb board is positioned over and is placed in mould 3,5 downlink of cylinder pushes nog plate mechanism 16 to be contacted with pcb board, speed regulating motor
15 work drive nog plate mechanism 16 to carry out nog plate processing to pcb board, and the work of servo motor 12 drives shaft 11 to rotate, so as to drive
Gear 13 rotates, since gear 13 is engaged with rack 10, servo motor 12 can pass through first support 9 and drive second
Frame 14 is vertically moved along square tube 8, so as to which nog plate mechanism 16 be driven to vertically move, meanwhile, X-axis feed mechanism 2 can drive placement
In placing the pcb board transverse movement in mould 3, so as to carry out automatic nog plate to pcb board.The apparatus structure is simple, can be automatically to PCB
Plate carries out nog plate processing, meanwhile, abrasive material contacts uniformly with pcb board, nog plate uniformly continuous, high degree of automation, meanwhile, integrated form
Design, effectively reduces cost.
The utility model is not limited to above-mentioned specific embodiment, and those of ordinary skill in the art visualize from above-mentioned
Hair, without performing creative labour, the various transformation made are all fallen within the scope of protection of the utility model.
Claims (9)
1. a kind of Vertical traverse pcb board grinding device, it is characterised in that including pedestal, X-axis feed mechanism, place mould, door frame, gas
Cylinder, guide rod, supporting plate, square tube, first support, rack, shaft, servo motor, gear, second support, speed regulating motor, Plate grinder
Structure, the X-axis feed mechanism are located at pedestal upper end, and the X-axis feed mechanism is connected with whorl of base, the placement mould
Positioned at X-axis feed mechanism upper end, the placement mould is connected with X-axis feed mechanism screw thread, and the door frame is located at pedestal upper end,
The door frame is connected with whorl of base, and the cylinder is located at door frame upper end, and the cylinder is connected with door frame screw thread, described
Guide rod through door frame and positioned at cylinder side, the guide rod is connected with door frame gap and is movably connected with cylinder, described
Supporting plate is located at cylinder lower end and positioned at lower end of the guide rod, and the supporting plate is connected with cylinder screw thread and is connected with guide rod screw thread, described
Square tube be located at supporting plate lower end, the square tube is connected with supporting plate screw thread, and the first support is located on the outside of square tube, described
First support is connected with square tube slip, and the rack is located at square tube lower end, and the rack is connected with square tube screw thread, described
Shaft runs through first support, and the shaft is rotatedly connected with first support, and the servo motor is located at shaft side and position
In stent side, the servo motor is connected with shaft key and is connected with stent screw thread, and the gear is located at rack lower end
And run through by shaft, wheel and rack engagement is connected and is connected with shaft close-fitting, and the second support is located at first
Pedestal lower end, the second support are connected with first support screw thread, and the speed regulating motor is located on the inside of second support, described
Speed regulating motor be connected with second support screw thread, the nog plate mechanism is located at speed regulating motor lower end, the nog plate mechanism with
Speed regulating motor screw thread is connected.
2. Vertical traverse pcb board grinding device as described in claim 1, it is characterised in that the nog plate mechanism further includes connection
Axis, elastomer block, bistrique, is arranged symmetrically along the rocker piece feed bin, cushion chamber that quantity is 2, along the elastomer block at rocker piece
Uniformly distributed quantity is no less than elastic, the feeding-passage of 2, and the connecting shaft is located at speed regulating motor lower end, the connecting shaft
It is connected with speed regulating motor key, the connecting shaft runs through rocker piece, and the rocker piece is connected with connecting shaft clearance, the bullet
Property block is located at rocker piece lower end, and the elastomer block is connected with rocker piece screw thread, and the bistrique is located at elastomer block lower end, described
Bistrique be connected with elastomer block screw thread, the feed bin is located on the outside of rocker piece, and the feed bin is weldingly connected with rocker piece, institute
The rocker piece stated is additionally provided with cushion chamber, and the cushion chamber is located at rocker piece lower central, and the elastic is located at elasticity
Block upper end and in the cushion chamber, the elastic is integrally connected with elastomer block, and the rocker piece is additionally provided with feeding-passage,
The feeding-passage with the intercommunication of feed bin cavity and with cushion chamber cavity intercommunication.
3. Vertical traverse pcb board grinding device as claimed in claim 2, it is characterised in that the connecting shaft is additionally provided with guiding
Key, the feather key are located on the outside of connecting shaft, and the feather key is connected with connecting shaft close-fitting.
4. Vertical traverse pcb board grinding device as claimed in claim 2, it is characterised in that the connecting shaft is additionally provided with limiting
Head, the spacing head are located at connecting shaft lower end, and the spacing head is integrally connected with connecting shaft.
5. Vertical traverse pcb board grinding device as claimed in claim 2, it is characterised in that the rocker piece is additionally provided with guide groove,
The guide groove is located on the inside of rocker piece, and the guide groove is not through rocker piece.
6. Vertical traverse pcb board grinding device as claimed in claim 2, it is characterised in that the elastomer block is additionally provided with cloth
Slot, the distributing trough run through elastic block main body.
7. Vertical traverse pcb board grinding device as claimed in claim 6, it is characterised in that the distributing trough quantity is 2, right
Title is arranged in elastomer block.
8. Vertical traverse pcb board grinding device as claimed in claim 2, it is characterised in that the material of the elastomer block is rubber.
9. Vertical traverse pcb board grinding device as claimed in claim 2, it is characterised in that the feed bin is additionally provided with feed bin lid,
The feed bin lid is located at feed bin upper end, and the feed bin lid is connected with feed bin gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721163347.3U CN207548354U (en) | 2017-09-12 | 2017-09-12 | A kind of Vertical traverse pcb board grinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721163347.3U CN207548354U (en) | 2017-09-12 | 2017-09-12 | A kind of Vertical traverse pcb board grinding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207548354U true CN207548354U (en) | 2018-06-29 |
Family
ID=62676159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721163347.3U Active CN207548354U (en) | 2017-09-12 | 2017-09-12 | A kind of Vertical traverse pcb board grinding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207548354U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107511729A (en) * | 2017-09-12 | 2017-12-26 | 苏州市吴通电子有限公司 | A kind of Vertical traverse pcb board grinding device |
| CN110253360A (en) * | 2019-05-10 | 2019-09-20 | 谢洁萍 | Slurry system is used in a kind of processing of gypsum board manufacture |
-
2017
- 2017-09-12 CN CN201721163347.3U patent/CN207548354U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107511729A (en) * | 2017-09-12 | 2017-12-26 | 苏州市吴通电子有限公司 | A kind of Vertical traverse pcb board grinding device |
| CN110253360A (en) * | 2019-05-10 | 2019-09-20 | 谢洁萍 | Slurry system is used in a kind of processing of gypsum board manufacture |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103786087B (en) | Pcb board Plate grinder | |
| CN207548354U (en) | A kind of Vertical traverse pcb board grinding device | |
| CN207103209U (en) | A kind of computer motherboard cleaning device | |
| CN107511729A (en) | A kind of Vertical traverse pcb board grinding device | |
| CN109848782B (en) | Timber burr treatment device | |
| CN106181695A (en) | A kind of pan automatic edging device | |
| CN206263757U (en) | A kind of burnishing device of electric ceramic | |
| CN106270813A (en) | A kind of motor gear processing unit (plant) | |
| CN206066103U (en) | A kind of mobile phone shell surface grinding machine | |
| CN107471010A (en) | A kind of prepressing type pcb board grinding device | |
| CN208681275U (en) | A kind of grinding device of diamond abrasive tool | |
| CN108067983A (en) | A kind of irregular surface strip boards interval sanding apparatus | |
| CN207239845U (en) | A kind of Vertical traverse pcb board nog plate mechanism | |
| CN208531532U (en) | A kind of lubricant feed system | |
| CN204700696U (en) | A kind of ultra-thin glass beveling device | |
| CN205085748U (en) | Round nose milling cutter circularity processing equipment | |
| CN207656377U (en) | A kind of cylindrical work grinding device easy to use | |
| CN207840894U (en) | A kind of prepressing type pcb board grinding device | |
| CN206140303U (en) | Rotatory swing fixture device | |
| CN110405578A (en) | Grinding device is used in a kind of processing of Computerized flat knitting machine accessory | |
| CN207255978U (en) | A kind of multi-selection sanding apparatus | |
| CN206897494U (en) | A kind of Chinese medicine lapping device | |
| CN115816224A (en) | Show screen frame frock for numerical control multiaxis processing | |
| CN213275864U (en) | Pretreatment device for chip detection | |
| CN205465713U (en) | PCB board grinds board device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |