CN111889754B - Tool for drilling support legs of rattan chair framework - Google Patents
Tool for drilling support legs of rattan chair framework Download PDFInfo
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- CN111889754B CN111889754B CN202010733363.1A CN202010733363A CN111889754B CN 111889754 B CN111889754 B CN 111889754B CN 202010733363 A CN202010733363 A CN 202010733363A CN 111889754 B CN111889754 B CN 111889754B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
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Abstract
The application discloses a tool for drilling support legs of a rattan chair framework, which relates to the technical field of rattan chair production and comprises a base and two abutting mechanisms, wherein the two abutting mechanisms are respectively positioned on two opposite sides of the base, and the two abutting mechanisms are connected to the base in a sliding manner so as to enable the two abutting mechanisms to be close to or far away from each other; each abutting mechanism comprises an abutting part, a guide rod arranged on the abutting part and connected to the rack in a sliding mode and a driving part arranged on the base and used for driving the abutting part to slide, and a positioning groove for embedding and positioning the supporting part is formed in one side, far away from the base, of each abutting part. Set up two and support tight mechanism for stabilizer blade centre gripping is more stable during the trompil, helps improving the position precision of through-hole, makes the trompil operation convenient more accurate.
Description
Technical Field
The application relates to the technical field of rattan chair production, more specifically says that it relates to a frock is used in stabilizer blade trompil of rattan chair skeleton.
Background
The rattan chair framework is mainly a base frame formed by splicing aluminum rods or iron rods and is mainly used as a carrier for weaving rattans. In actual production, the rod pieces need to be spliced, some rod pieces are welded, and some rod pieces are connected in a penetrating mode through bolts, for example, the joints of the support legs and the seat surface are fixed through bolts. When the bolts are used for penetrating connection, holes need to be formed in the rod pieces.
As shown in fig. 4, the conventional support leg includes a connecting portion 11 and supporting portions 12 disposed at two ends of the connecting portion 11, and the connecting portion 11 is provided with through holes 13. The through-hole 13 is generally formed by drilling or punching.
The stabilizer blade is usually by round bar bending type, during actual production, in order to make processing convenient, buckle again behind the round bar trompil usually, with round bar both ends bending type supporting part. However, the through hole position accuracy of the connecting portion is not good due to the production mode.
In order to improve the precision of the hole position, the round rod is bent and then perforated. However, the round bar is bent and then perforated, and the bent round bar is troublesome to clamp and position and needs to be improved.
Disclosure of Invention
In order to improve the trouble problem of back stabilizer blade centre gripping location when the trompil of buckling, this application provides a stabilizer blade of rattan chair skeleton frock for trompil.
The application provides a pair of stabilizer blade frock for trompil of rattan chair skeleton adopts following technical scheme:
the tool for drilling the support leg of the rattan chair framework comprises a base and two abutting mechanisms, wherein the two abutting mechanisms are respectively positioned on two opposite sides of the base, and are connected to the base in a sliding manner so as to enable the two abutting mechanisms to be close to or far away from each other; each abutting mechanism comprises an abutting portion, a guide rod and a driving piece, wherein the guide rod is arranged on the abutting portion and connected to the rack in a sliding mode, the driving piece is arranged on the base and drives the abutting portion to slide, and a positioning groove for embedding and positioning the supporting portion is formed in one side, far away from the base, of the abutting portion.
Through the technical scheme, when the round bar after buckling needs to be holed, the driving piece drives the tight mechanisms of supporting of base both sides to keep away from each other and support the stabilizer blade to tightly fix a position, at this moment, the supporting part of stabilizer blade can be embedded into the constant head tank to fix a position, so that the round bar after buckling is drilled or the in-process of punching a hole is difficult to deflect, the round bar after buckling is more stable in the clamping and fixing position of the holing in-process, the position precision of the through hole is improved, and the holing operation is more convenient and accurate.
Preferably, the locating slot is arranged in a flaring mode from the slot bottom to the slot opening.
Through above-mentioned technical scheme, the constant head tank is the flaring setting, and the constant head tank can support tightly the location to the stabilizer blade of different rod diameters to make holistic use more convenient.
Preferably, the holding tank that supplies connecting portion location is seted up to the up end of base, the holding tank is the flaring from the tank bottom to the notch.
Through above-mentioned technical scheme, set up the holding tank, the holding tank can be fixed a position connecting portion, and the tight centre gripping of supporting of convenient follow-up tight mechanism that supports, the stabilizer blade of different specifications is processed the location to the mode convenience of holding tank flaring.
Preferably, the bottom of the accommodating groove is provided with a chip removal hole.
Through above-mentioned technical scheme, set up the chip removal hole, the chip removal hole is convenient in time with the sweeps clearance in the holding tank, has reduced the sweeps and has piled up the influence of placing the stabilizer blade for holistic use is more convenient.
Preferably, the base up end still is provided with the briquetting, the briquetting articulates on the base, the articulated axis of briquetting is vertical setting, the briquetting rotates to holding tank top and is used for contradicting the stabilizer blade and restrict connecting portion and break away from holding tank.
Through above-mentioned technical scheme, set up the briquetting, the briquetting can further fix a position the stabilizer blade for the holding tank is more stable to the location of stabilizer blade, thereby makes the position of stabilizer blade more stable in the trompil operation.
Preferably, two guide rods of each abutting mechanism are arranged along the vertical direction, the two guide rods are distributed vertically and are hinged with the end face, close to the base, of the abutting portion, and the hinge axes of the two guide rods and the abutting portion are horizontal and perpendicular to the length direction of the positioning groove;
an elastic reset piece is arranged between the two guide rods and the abutting part, and the elastic force of the elastic reset piece enables the end face, far away from the base, of the abutting part to reset to a vertical trend;
the driving piece drives the guide rod positioned below to slide so that the abutting portion moves.
Through above-mentioned technical scheme, in-service use, the stabilizer blade is the perpendicular setting of supporting part and connecting portion for some, but also has in the stabilizer blade of part the supporting part and connecting portion to be the obtuse angle setting. When the supporting part and the supporting leg vertical to the connecting part are clamped, the driving part drives the guide rod below to move, and under the action of the elastic reset part, the guide rod above basically keeps synchronous movement, so that the positioning groove of the abutting part can be buckled into the supporting leg correspondingly.
When the supporting part and the supporting part are clamped by the support leg at an obtuse angle, the driving part drives the guide rod below to move, the guide rod above the supporting part firstly follows the guide rod below to move synchronously under the action of the elastic reset part, when the upper end of the abutting part is abutted against the supporting part of the support leg, the driving part drives the guide rod below to continue to move, and the abutting part can be outwards overturned along the abutting point of the abutting part and the supporting part of the support leg until the positioning groove of the abutting part abuts against the supporting part of the support leg.
The guide rod is hinged to the abutting portion and the elastic reset piece is arranged, so that the abutting mechanism can be clamped and positioned aiming at different support legs, and the use adaptability of the abutting mechanism is better.
Preferably, the guide rod positioned above the base is a linear guide rail, the base is provided with a sliding block, the sliding block is provided with a sliding groove matched with the linear guide rail, and a plurality of rollers are rotated in the groove wall of the sliding groove.
Through above-mentioned technical scheme, conflict linear guide through the roller, the roll of roller reduces linear guide's the resistance that slides to it is more convenient to make the guide bar that is located the top slide.
Preferably, the two abutting mechanisms are symmetrically distributed on two sides of the base, and the driving part drives the guide rods below the two abutting mechanisms to synchronously and reversely move.
Through the technical scheme, the guide rods below reversely and synchronously move, so that when the two abutting mechanisms clamp the support legs, the central points of the connecting parts of the support legs are located at the centers of the two abutting mechanisms, the support legs are conveniently positioned, the whole machining is more convenient, and the accuracy of the hole opening position is improved.
Preferably, each driving piece comprises a hinge rod hinged to the lower guide rod and far away from the abutting part and a driving cylinder arranged on the base; the hinged rods are obliquely and upwards arranged towards the direction far away from the corresponding guide rods, and the driving air cylinders are vertically arranged; the hinged rods of the two driving pieces are symmetrically arranged, and the two driving pieces share one driving cylinder.
Through above-mentioned technical scheme, the symmetry setting of articulated rod makes the upset of two articulated rods keep in step for two below guide bars that support tight mechanism remove more in step, thereby make and drive actuating cylinder and drive two and support tight mechanism and remove more in step.
In summary, the present application includes at least one of the following beneficial technical effects:
(1) by arranging the two abutting mechanisms, the clamping of the support legs is more stable during the tapping, the position precision of the through hole is improved, and the tapping operation is more convenient and accurate;
(2) the containing groove and the chip removal hole are arranged, so that the whole use is more convenient;
(3) the driving piece drives the two lower guide rods abutting against the tight mechanism to move reversely and synchronously, so that the supporting legs are conveniently positioned, and the accuracy of the hole opening position is improved.
Drawings
FIG. 1 is an overall schematic view of an embodiment;
FIG. 2 is a schematic structural diagram of a tightening mechanism according to an embodiment;
FIG. 3 is a schematic view of a usage state of the embodiment;
fig. 4 is a schematic view of a support leg structure.
Reference numerals: 1. a base; 2. a tightening mechanism; 21. a tightening part; 211. positioning a groove; 22. a guide bar; 23. a drive member; 231. a hinged lever; 232. a driving cylinder; 3. an accommodating chamber; 4. accommodating grooves; 5. chip removal holes; 6. a material guide plate; 7. briquetting; 8. a slider; 9. a chute; 10. an elastic reset member; 11. a connecting portion; 12. a support portion; 13. and a through hole.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
Example (b):
a tool for drilling support legs of a rattan chair framework comprises a base 1 and two tightening mechanisms 2 symmetrically distributed on two opposite sides of the base 1, as shown in figure 1. The preceding terminal surface of base 1 has been seted up and has been held chamber 3, holds chamber 3 and runs through base 1 setting. Holding tank 4 has been seted up to the up end of base 1, and holding tank 4 runs through base 1 along two both ends that support tight mechanism 2's distribution direction and sets up. The holding tank 4 is the symmetry setting along two lateral walls of horizontal direction, and holding tank 4 is the flaring setting from the tank bottom to the notch. Chip removal holes 5 are formed in the bottom of the accommodating groove 4, in the embodiment, two chip removal holes 5 are formed in the length direction of the accommodating groove 4, the two chip removal holes 5 are arranged corresponding to the open holes of the support legs, each chip removal hole 5 is arranged in a long hole, and the long holes can be used for processing the support legs of the through holes 13 (see fig. 4) with different distances.
The chip removal holes 5 are vertically and downwardly formed and communicated into the containing cavity 3, the material guide plate 6 is further arranged in the containing cavity 3, the material guide plate 6 is fixed on the base 1, and the material guide plate 6 is correspondingly positioned below the two chip removal holes 5 and is obliquely and downwardly arranged towards the direction perpendicular to the distribution direction of the two abutting mechanisms 2.
As shown in fig. 1, the upper end surface of the base 1 is further provided with a pressing block 7, the pressing block 7 is hinged on the base 1, and the hinge axis of the pressing block 7 is located on one side of the accommodating groove 4 and is vertically arranged. The pressing block 7 can be turned over to be positioned above the accommodating groove 4 and also can be turned over to be staggered with the accommodating groove 4. In this embodiment, two pressing blocks 7 are distributed along the length direction of the accommodating groove 4, and the two pressing blocks 7 are distributed on one side of the two chip removal holes 5 away from each other.
As shown in fig. 1 and fig. 2, each of the tightening mechanisms 2 includes a tightening portion 21, a guide rod 22 disposed on the tightening portion 21 and slidably connected to the frame, and a driving member 23 disposed on the base 1 for driving the tightening portion 21 to slide. The driving member 23 drives the two abutting portions 21 to slide and make the two abutting mechanisms 2 approach or separate from each other.
The abutting portions 21 are plate-shaped and vertically arranged, a positioning groove 211 is formed in one side, away from the base 1, of each abutting portion 21, and the positioning groove 211 penetrates through the abutting portions 21 along the end faces of the abutting portions 21 in the vertical direction. The constant head tank 211 is located same vertical face and corresponds the alignment setting with holding tank 4, and the constant head tank 211 sets up along two lateral walls symmetries of horizontal direction, and the constant head tank 211 is the flaring setting from the tank bottom to the notch.
As shown in fig. 1 and 2, two guide rods 22 of each tightening mechanism 2 are arranged along the vertical direction, the two guide rods 22 are distributed up and down, the two guide rods 22 are slidably arranged on the base 1 along the horizontal direction and penetrate into the accommodating cavity 3, and the two guide rods 22 are arranged below the accommodating cavity 3 and are located below the material guide plate 6.
Of the two guide rods 22 of each tightening mechanism 2, the guide rod 22 located above is a linear guide rail. The base 1 is provided with a through hole which is arranged corresponding to the guide rod 22 positioned above. A sliding block 8 is fixed in the through hole of the base 1, a sliding groove 9 matched with the linear guide rail is formed in the sliding block 8, and a plurality of rollers (not shown) rotate in the groove wall of the sliding groove 9. The guide rod 22 located above is connected with the base 1 in a sliding mode through the linear guide rail and the sliding groove 9, the roller abuts against the outer side wall of the linear guide rail, sliding resistance of the linear guide rail is reduced due to rolling of the roller, and therefore sliding of the guide rod 22 located above is flexible.
Two guide rods 22 of each abutting mechanism 2 are hinged to the end face, close to the base 1, of the corresponding abutting portion 21, and the hinge axes of the two guide rods 22 and the abutting portion 21 are horizontal and perpendicular to the length direction of the positioning groove 211. An elastic reset piece 10 is further arranged between the two guide rods 22 and the abutting portion 21, in this embodiment, the elastic reset piece 10 is a torsion spring arranged at the position of the hinge shaft of the corresponding guide rod 22 and the abutting portion 21, and the elastic force of the elastic reset piece 10 enables the abutting portion 21 to be reset to the vertical trend away from the end face of the base 1.
The driving members 23 are respectively connected to the lower guide rods 22 of the tightening mechanism 2 and drive the lower guide rods 22 to slide so that the tightening part 21 moves. The driving part 23 drives the two guide rods 22 below the tightening mechanism 2 to move synchronously and reversely. The driving member 23 may be a cylinder (not shown) directly connected to the lower guide rod 22, and the lower guide rods 22 of the two tightening mechanisms 2 move synchronously and reversely by controlling the synchronous operation of the two cylinders.
In this embodiment, each driving member 23 includes a hinge rod 231 hinged to the lower guide rod 22 away from the abutting portion 21, and a driving cylinder 232 provided on the base 1. The hinge rod 231 is inclined upward toward a direction away from the corresponding guide rod 22, and the driving cylinder 232 is located in the accommodating chamber 3 and is vertically disposed. The hinge rods 231 of the two driving members 23 are symmetrically arranged, and the two driving members 23 share one driving cylinder 232.
The working principle of the embodiment is as follows:
the legs are somewhat provided with the support portion 12 arranged perpendicular to the connecting portion 11, but there are also some legs in which the support portion 12 is arranged at a symmetrical obtuse angle to the connecting portion 11.
Referring to fig. 1 and 3, when the support legs with the support portions 12 perpendicular to the connection portions 11 are clamped, the connection portions 11 of the support legs are placed on the accommodating grooves 4 to be positioned, the support portions 12 at the two ends of the connection portions 11 droop under the action of gravity, the pressing blocks 7 are turned over the accommodating grooves 4 to abut against the support legs and limit the connection portions 11 to be separated from the accommodating grooves 4, then the piston rods of the driving cylinders 232 retract, and at the moment, the driving pieces 23 drive the guide rods 22 below to move. Under the effect of elasticity piece 10 that resets, the guide bar 22 of top keeps synchronous motion basically to make the constant head tank 211 of conflict portion can correspond the supporting part 12 of stabilizer blade and detain, constant head tank 211 conflicts the supporting part 12 of stabilizer blade at this moment and fixes a position the stabilizer blade, thereby realizes the centre gripping location to the stabilizer blade.
When the stabilizer blade that is the obtuse angle to supporting part 12 and connecting portion 11 carries out the centre gripping, place the connecting portion 11 of stabilizer blade on holding tank 4 earlier and fix a position, the supporting part 12 at connecting portion 11 both ends is flagging under the effect of gravity, overturns briquetting 7 again to holding tank 4 top and is used for contradicting the stabilizer blade and restrict connecting portion 11 and break away from holding tank 4, then drives the piston rod retraction of actuating cylinder 232, and actuating piece 23 drives the guide bar 22 removal of below this moment. Under the action of the elastic reset piece 10, the upper guide rod 22 basically keeps moving synchronously, when the upper end of the abutting portion 21 abuts against the supporting portion 12 of the supporting leg, the driving piece 23 drives the lower guide rod 22 to continue moving, at this time, the abutting portion 21 can turn outwards along the abutting point between the upper portion of the abutting portion 21 and the supporting portion 12 of the supporting leg until the positioning groove 211 of the abutting portion 21 abuts against the supporting portion 12 of the supporting leg, and at this time, the two abutting mechanisms 2 clamp the supporting leg to be processed.
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 (5)
1. The utility model provides a frock is used in stabilizer blade trompil of rattan chair skeleton which characterized in that: the clamping device comprises a base (1) and two abutting mechanisms (2), wherein the two abutting mechanisms (2) are respectively positioned at two opposite sides of the base (1), and the two abutting mechanisms (2) are connected to the base (1) in a sliding manner so that the two abutting mechanisms (2) are close to or far away from each other; each abutting mechanism (2) comprises an abutting part (21), a guide rod (22) which is arranged on the abutting part (21) and connected to the base (1) in a sliding manner, and a driving part (23) which is arranged on the base (1) and drives the abutting part (21) to slide, and a positioning groove (211) for embedding and positioning the supporting part (12) is formed in one side, away from the base (1), of each abutting part (21); the positioning groove (211) is arranged from the groove bottom to the notch in a flaring manner;
an accommodating groove (4) for positioning the connecting part (11) is formed in the upper end face of the base (1), and the accommodating groove (4) is flared from the groove bottom to the notch;
the upper end face of the base (1) is further provided with a pressing block (7), the pressing block (7) is hinged to the base (1), the hinge axis of the pressing block (7) is vertically arranged, and the pressing block (7) rotates to a position above the accommodating groove (4) and is used for abutting against the supporting legs and limiting the connecting part (11) to be separated from the accommodating groove (4);
two guide rods (22) of each abutting mechanism (2) are arranged along the vertical direction, the two guide rods (22) are vertically distributed and are hinged with the end face, close to the base (1), of the abutting portion (21), and the hinge axes of the two guide rods (22) and the abutting portion (21) are horizontal and perpendicular to the length direction of the positioning groove (211);
an elastic resetting piece (10) is further arranged between the two guide rods (22) and the abutting part (21), and the elastic force of the elastic resetting piece (10) enables the end face, away from the base (1), of the abutting part (21) to be in a trend of resetting to be vertical;
the driving piece (23) drives the guide rod (22) positioned below to slide so that the abutting part (21) moves.
2. The tool for drilling the supporting legs of the rattan chair framework as claimed in claim 1, wherein the tool comprises: chip removal holes (5) are formed in the bottom of the accommodating groove (4).
3. The tool for drilling the supporting legs of the rattan chair framework as claimed in claim 1, wherein the tool comprises: the guide rod (22) positioned above is a linear guide rail, a sliding block (8) is arranged on the base (1), a sliding groove (9) matched with the linear guide rail is formed in the sliding block (8), and a plurality of rollers are rotationally connected to the groove wall of the sliding groove (9).
4. The tool for drilling the supporting legs of the rattan chair framework as claimed in claim 1, wherein the tool comprises: the two abutting mechanisms (2) are symmetrically distributed on two sides of the base (1), and the driving piece (23) drives the guide rods (22) below the two abutting mechanisms (2) to synchronously and reversely move.
5. The tool for drilling the supporting legs of the rattan chair framework, according to claim 4, is characterized in that: the driving piece (23) comprises a hinge rod (231) hinged to one end, far away from the abutting part (21), of the guide rod (22) positioned below and a driving cylinder (232) arranged on the base (1); the hinged rod (231) is obliquely and upwards arranged towards the direction far away from the corresponding guide rod (22), and the driving cylinder (232) is vertically arranged; two hinged rods (231) of the driving piece (23) are symmetrically arranged, and the two hinged rods (231) share one driving cylinder (232).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010733363.1A CN111889754B (en) | 2020-07-27 | 2020-07-27 | Tool for drilling support legs of rattan chair framework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010733363.1A CN111889754B (en) | 2020-07-27 | 2020-07-27 | Tool for drilling support legs of rattan chair framework |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111889754A CN111889754A (en) | 2020-11-06 |
| CN111889754B true CN111889754B (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010733363.1A Active CN111889754B (en) | 2020-07-27 | 2020-07-27 | Tool for drilling support legs of rattan chair framework |
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| Country | Link |
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| CN (1) | CN111889754B (en) |
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| KR200389713Y1 (en) * | 2005-04-14 | 2005-07-14 | 이호영 | Rotating apparatus for pipe |
| CN201505824U (en) * | 2009-09-15 | 2010-06-16 | 中煤张家口煤矿机械有限责任公司 | Positioning and clamping device for rail support bent plate boreholes |
| CN104400497A (en) * | 2014-11-25 | 2015-03-11 | 常州正康硬质合金有限公司 | Rapid centre hole drilling tooling |
| CN106363434A (en) * | 2016-10-14 | 2017-02-01 | 王庆昊 | Large-stroke tightening device for clamping center hole of hub |
| CN209288775U (en) * | 2018-10-31 | 2019-08-23 | 安徽稳卓汽车部件有限公司 | A kind of automotive hub external process fixture |
| CN110289742A (en) * | 2019-05-30 | 2019-09-27 | 安徽宏远机械制造有限公司 | A kind of low vibration electric motor end cap manufacturing method |
| CN210475595U (en) * | 2019-07-30 | 2020-05-08 | 嘉兴市余新罗中五金厂(普通合伙) | Hardware fitting perforating device |
| CN210756605U (en) * | 2019-10-24 | 2020-06-16 | 阜宁县鸿达铸件有限公司 | Internal stay anchor clamps are used in motor housing processing |
-
2020
- 2020-07-27 CN CN202010733363.1A patent/CN111889754B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200389713Y1 (en) * | 2005-04-14 | 2005-07-14 | 이호영 | Rotating apparatus for pipe |
| CN201505824U (en) * | 2009-09-15 | 2010-06-16 | 中煤张家口煤矿机械有限责任公司 | Positioning and clamping device for rail support bent plate boreholes |
| CN104400497A (en) * | 2014-11-25 | 2015-03-11 | 常州正康硬质合金有限公司 | Rapid centre hole drilling tooling |
| CN106363434A (en) * | 2016-10-14 | 2017-02-01 | 王庆昊 | Large-stroke tightening device for clamping center hole of hub |
| CN209288775U (en) * | 2018-10-31 | 2019-08-23 | 安徽稳卓汽车部件有限公司 | A kind of automotive hub external process fixture |
| CN110289742A (en) * | 2019-05-30 | 2019-09-27 | 安徽宏远机械制造有限公司 | A kind of low vibration electric motor end cap manufacturing method |
| CN210475595U (en) * | 2019-07-30 | 2020-05-08 | 嘉兴市余新罗中五金厂(普通合伙) | Hardware fitting perforating device |
| CN210756605U (en) * | 2019-10-24 | 2020-06-16 | 阜宁县鸿达铸件有限公司 | Internal stay anchor clamps are used in motor housing processing |
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| CN111889754A (en) | 2020-11-06 |
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