CN212239905U - Tension spring feeding and assembling device - Google Patents
Tension spring feeding and assembling device Download PDFInfo
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- CN212239905U CN212239905U CN202020585278.0U CN202020585278U CN212239905U CN 212239905 U CN212239905 U CN 212239905U CN 202020585278 U CN202020585278 U CN 202020585278U CN 212239905 U CN212239905 U CN 212239905U
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- tension spring
- guide rail
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- spring
- cylinder
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Abstract
The utility model discloses a tension spring feeding and assembling device, which comprises an installation base, wherein a Y-axis guide rail is arranged on the installation base, an assembling mechanism is arranged on the Y-axis guide rail, the assembling mechanism is connected with a Y-axis stroke cylinder, and the Y-axis stroke cylinder controls the assembling mechanism to transversely move along the Y-axis guide rail; the limit stroke department of mounting base installs the feed mechanism who mutually supports with assembly devices, and assembly devices is in the control of Y axle stroke cylinder is down to the limit stroke department of mounting base, inserts from feed mechanism and gets the extension spring, inserts to get and relies on Y axle stroke cylinder to remove to the mounted position and accomplish the assembly after accomplishing. The utility model utilizes the guide rail and the positioning baffle plate for positioning, so that the tension spring hook lug is laid on the tension spring boss when the tension spring slides out of the guide rail, the tension spring can be conveniently and accurately grabbed, and the whole mechanism is stable and reliable; the draw-in groove is the semi-cylindrical groove of laminating extension spring thimble outer wall for the lug that pushes down only contacts extension spring both ends hook ear position, avoids extension spring middle part pressurized deformation.
Description
Technical Field
The utility model relates to a small-size extension spring equipment technical field, concretely relates to extension spring material loading and assembly quality.
Background
In small-size extension spring assembling process, prior art is inserted by the manual work and gets the extension spring and place the material top and accomplish the assembling process, and is inefficient, consumes a large amount of manual works, and assembles the extension spring little, be difficult for the location and insert and get, and assembly quality is uneven, influences product quality, has influenced the step of equipment automation.
The not enough to prior art, the utility model aims at providing a extension spring material loading and assembly quality that can automatic feeding and location assembly.
SUMMERY OF THE UTILITY MODEL
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a tension spring feeding and assembling device comprises an installation base, wherein a Y-axis guide rail is installed on the installation base, an assembling mechanism is installed on the Y-axis guide rail and connected with a Y-axis stroke cylinder, and the Y-axis stroke cylinder controls the assembling mechanism to move transversely along the Y-axis guide rail; the limit stroke department of mounting base installs the feed mechanism who mutually supports with assembly devices, assembly devices is in the control of Y axle stroke cylinder is down to the limit stroke department of mounting base, follows insert on the feed mechanism and get the extension spring, insert and get and rely on Y axle stroke cylinder to remove to the mounted position and accomplish the assembly after accomplishing.
Further, feed mechanism includes the base, through the bolted connection connecting plate on the base, the one side that the base was kept away from to the connecting plate is opened there is the spread groove, the one end joint guide rail of spread groove, the extension spring is placed in the guide rail inner chamber slides, the extension spring includes extension spring main part and extension spring hook ear, the equal fixed connection extension spring hook ear in both ends of extension spring main part, bolted connection locating baffle is passed through to the other end top surface of spread groove, open there is the mounting groove connecting plate and the one side both sides of base contact, the mounting groove is located the guide rail and fixes a position under the spread groove between the baffle, slide joint extension spring boss in the mounting groove, the top of extension spring boss runs through the mounting groove and stretches into in the spread groove between guide rail and the locating baffle, installation supporting spring between extension spring boss bottom.
Further, the assembling mechanism comprises a fixing plate, a downward-pressing cylinder is fixedly installed at the top of the fixing plate, a push rod of the downward-pressing cylinder penetrates through the fixing plate in a sliding mode and is fixedly connected with the mounting plate, one end of a connecting column is fixedly connected at the edge of the side wall of the mounting plate, the other end of the connecting column is connected with a connecting plate through a bolt, a gas claw cylinder is fixedly installed on the side wall of the mounting plate between the connecting columns, a pressing plate cylinder is fixedly installed on the outer wall of the connecting plate far away from the gas claw cylinder, the push rod of the pressing plate cylinder is located below the connecting plate, the push rod of the pressing plate cylinder is fixedly connected with one end of a pressing plate, the other end of the pressing plate is located under two gas claws of the gas claw cylinder, a downward-pressing lug is installed at the bottom of the pressing plate, one ends of, the mounting panel bottom fixed mounting location base, the last locating pin of installing of location base.
Further, guide rail inner chamber width equals the length of extension spring main part, guide rail inner chamber both sides are opened there is the spacing groove, extension spring hook ear slip joint is at the spacing inslot.
Further, the extension spring boss becomes the cuboid structure of square for the terminal surface, and extension spring boss's terminal surface length of side is greater than the diameter of extension spring hook ear, the one side interval that the extension spring boss is close to mutually equals the length of extension spring main part, and the one side that the extension spring boss is close to mutually and guide rail inner chamber lateral wall parallel and level.
Further, the extension spring boss is close to the one end outer wall fixed mounting dog of mounting groove, the extension spring boss is close to the uide pin of the one end terminal surface fixed mounting cylinder structure of mounting groove, the uide pin slip joint is in supporting spring, just the uide pin diameter equals the supporting spring internal diameter, supporting spring is in compression state all the time, supporting spring's external diameter equals the width of mounting groove.
Further, the support plate is fixedly installed at the bottom of the connecting groove between the tension spring bosses, the outer walls of the tension spring bosses are attached to two ends of the support plate, and the top of the support plate is of an arc structure attached to the outer wall of the tension spring main body.
Furthermore, the two ends of the pressing plate are respectively provided with a waist-shaped hole, the downward pressing lug is wedged into the waist-shaped hole of the pressing plate, the tension spring thimble slidably penetrates through the downward pressing lug, the protruding part of the downward pressing lug is tightly attached to the outer wall of the tension spring thimble, and the distance between the tension spring thimbles is equal to the distance between the tension spring hook lugs at the two ends under the natural state of the tension spring, so that the tension spring can be conveniently inserted and taken.
Furthermore, the width of the connecting block of the downward pressing lug is slightly smaller than the diameter of the waist-shaped hole, the widths of the upper stop block and the lower stop block of the downward pressing lug are larger than the diameter of the waist-shaped hole, and two protruding parts are arranged and respectively tightly attached to the outer walls of the two ends of the straight line of the center point of the tension spring thimble.
Further, the press-down protrusion is integrally formed.
The beneficial effects of the utility model reside in that: the utility model utilizes the guide rail and the positioning baffle plate for positioning, so that the tension spring hook lug is laid on the tension spring boss when the tension spring slides out of the guide rail, and the inserting and taking mechanism of the assembly machine is convenient for accurately grabbing the tension spring; the extension spring boss supports extension spring hook ear, and extension spring boss bottom supports through supporting spring, and the position of getting of inserting of assembly machine passes extension spring hook ear and pushes down the extension spring boss for supporting spring compression, the layer board supports and backward extrusion to extension spring main part position, makes extension spring hook ear slide along inserting the position of getting, is convenient for get the material. The workpiece is initially positioned by inserting and taking a tension spring through a tension spring thimble and pre-tensioning the tension spring, then a downward pressing lug is designed above the tension spring thimble, and the hook lug part of the tension spring is pressed downwards by the protruding part of the downward pressing lug in the process of installing the downward pressing tension spring, so that the phenomenon that the tension spring cannot be pressed in place is avoided, and the whole mechanism is stable and reliable; the width of the connecting block of the downward pressing lug is slightly smaller than the diameter of the waist-shaped hole, the widths of an upper stop block and a lower stop block of the downward pressing lug are larger than the diameter of the waist-shaped hole, so that the tension spring ejector pins can move to pull the tension spring to be pre-tensioned, the distance between the two tension spring ejector pins is equal to the distance between the tension spring hook lugs at two ends of the tension spring in a natural state, and the tension spring can be inserted and taken conveniently; the extension spring thimble slides and runs through the lug that pushes down, the protruding position of lug that pushes down closely laminates the outer wall of extension spring thimble for the protruding position of lug that pushes down only contacts extension spring both ends hook ear position, avoids extension spring middle part pressurized deformation.
Drawings
FIG. 1 is a schematic view of the feeding and assembling structure of the present invention;
FIG. 2 is a schematic view of a tension spring feeding mechanism of the present invention;
FIG. 3 is a schematic view of the tension spring assembly mechanism of the present invention;
FIG. 4 is a schematic diagram of a right-side view section structure of a tension spring boss;
FIG. 5 is a schematic sectional view of the connecting groove;
FIG. 6 is a schematic front view of the tension spring inserting and removing part of the present invention;
FIG. 7 is a schematic side view of the extension spring insertion and removal portion of the present invention;
FIG. 8 is a schematic perspective view of the extension spring insertion and removal portion of the present invention;
FIG. 9 is a cross-sectional view of the extension spring portion of the present invention;
FIG. 10 is a schematic structural view of the push-down bump of the present invention;
reference numerals: 1. a tension spring feeding mechanism; 2. a Y-axis guide rail; 3. a tension spring assembly mechanism; 4. mounting a base; 5. A Y-axis stroke cylinder; 11 base, 12 connecting plate, 13 connecting groove, 14 guide rail, 15 extension spring boss, 16 positioning baffle, 17 extension spring, 171 extension spring main body, 172 extension spring hook ear, 18 limiting groove, 19 stop block, 110 guide pin, 111 supporting spring, 112 mounting groove and 113 supporting plate; 31 fixed plate, 32 pushing cylinder, 33 mounting plate, 34 air claw cylinder, 35 connecting column, 36 connecting plate, 37 pressing plate cylinder, 38 pressing plate, 39 pushing convex block, 310 tension spring thimble, 311 positioning base, 312 positioning pin, 313 waist-shaped hole, 316 convex part, 317 upper block, 318 lower block, 319 connecting block.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments:
example one
As shown in fig. 1, a tension spring feeding and assembling device comprises an installation base, wherein a Y-axis guide rail is installed on the installation base, an assembling mechanism is installed on the Y-axis guide rail, the assembling mechanism is connected with a Y-axis stroke cylinder, and the Y-axis stroke cylinder controls the assembling mechanism to move transversely along the Y-axis guide rail; the limit stroke department of mounting base installs the feed mechanism who mutually supports with assembly devices, assembly devices is in the control of Y axle stroke cylinder is down to the limit stroke department of mounting base, follows insert on the feed mechanism and get the extension spring, insert and get and rely on Y axle stroke cylinder to remove to the mounted position and accomplish the assembly after accomplishing.
As shown in figure 2 of the drawings, in which, fig. 4 and fig. 5, extension spring feed mechanism 1 includes base 11, through bolted connection connecting plate 12 on the base 11, connecting plate 12 is kept away from base 1's one side and is opened there is spread groove 13, spread groove 13's one end joint guide rail 14, extension spring 17 is placed in the slide of guide rail 14 inner chamber, extension spring 17 includes extension spring main part 171 and extension spring shackle 172, the equal fixed connection extension spring shackle 172 in both ends of extension spring main part 171, bolted connection location baffle 16 is passed through to spread groove 13's other end top surface, open the one side both sides of connecting plate 12 and base 11 contact has mounting groove 112, mounting groove 112 is located guide rail 14 and the spread groove 13 between location baffle 16 under, slide extension spring joint boss 15 in the mounting groove 112, the top of extension spring boss 15 runs through mounting groove 112 and stretches into in the spread groove 13 between guide rail 14 and location baffle 16, installation supporting spring 111 between extension spring boss 15 bottom. Extension spring 17 passes through the vibration dish screening back and gets into in guide rail 14, when continuous feeding, extension spring 17 slides in guide rail 14, roll off the guide rail just when extension spring 17 touches locating baffle 16, extension spring 17 makes extension spring hook 172 lie flat on extension spring boss 15 in the action of gravity whereabouts, accomplish the location, the position of getting of inserting of assembly machine passes extension spring hook 172 and pushes down extension spring boss 15 for supporting spring 111 compresses, extension spring 17 cup joints on inserting the part of getting through extension spring hook 172, the completion is got the material.
The width of the inner cavity of the guide rail 14 is equal to the length of the tension spring main body 171, the limiting grooves 18 are formed in two sides of the inner cavity of the guide rail 14, and the tension spring hook lugs 172 are slidably clamped in the limiting grooves 18, so that the tension spring 17 is ensured to be in a horizontal state in the tension spring hook lugs 172 in the moving process, and the tension spring hook lugs 172 lie on the tension spring bosses 15 after the tension spring 17 slides out of the guide rail.
The end face of the tension spring boss 15 is a square cuboid structure, the side length of the end face of the tension spring boss 15 is larger than the diameter of the tension spring hook lug 172, the distance between the adjacent sides of the tension spring boss 15 is equal to the length of the tension spring main body 171, and the adjacent sides of the tension spring boss 15 are flush with the side wall of the inner cavity of the guide rail 14, so that the tension spring boss 15 is ensured to be over against the tension spring hook lug 172.
The supporting plate 113 is fixedly installed at the bottom of the connecting groove 13 between the tension spring bosses 15, the two ends of the supporting plate 113 are tightly attached to the outer wall of the tension spring boss 15, the top of the supporting plate 113 is of an arc structure attached to the outer wall of the tension spring main body 171, and when the tension spring boss 115 is pressed down by the inserting part of the assembling machine, the supporting plate 113 supports and reversely extrudes the part of the tension spring main body 171, so that the tension spring hook lug 172 slides upwards along the inserting part to finish material taking.
As shown in fig. 3, the tension spring assembly mechanism includes a fixing plate 31, a down-pressure cylinder 32 is fixedly installed on the top of the fixing plate 31, a push rod of the down-pressure cylinder 32 penetrates through the fixing plate 31 in a sliding manner and is fixedly connected with a mounting plate 33, one end of a connecting column 35 is fixedly connected with the edge of the side wall of the mounting plate 33, the other end of the connecting column 35 is connected with a connecting plate 36 through a bolt, a pneumatic claw cylinder 34 is fixedly installed on the side wall of the mounting plate 33 between the connecting columns 35, a pressure plate cylinder 37 is fixedly installed on the outer wall of the connecting plate 36 far away from the pneumatic claw cylinder 34, the push rod of the pressure plate cylinder 37 is located below the connecting plate 36, one end of a pressure plate 38 is fixedly connected with the push rod of the pressure plate cylinder 37, the other end of the pressure plate 38 is located right below two pneumatic claws of the pneumatic claw cylinder 34, a down-pressure bump 39, the bottom of the mounting plate 33 is fixedly provided with a positioning base 311, and the positioning base 311 is provided with a positioning pin 312. The push rod of the pressing cylinder 32 drives the mounting plate 33 to move downwards, so as to drive the tension spring thimble 310 to move downwards to be inserted into the tension spring hook ears 172 at two ends of the tension spring 17, the air claw of the air claw cylinder 34 is opened to enable the tension spring thimble 310 to pull the tension spring 17 to be pre-tensioned, so as to clamp the tension spring 17, the push rod of the pressing cylinder 32 is contracted to lift the tension spring 17, the fixing plate 1 is driven to move through the Y-axis stroke cylinder 5, so as to move the tension spring 17 to the position of the tension spring for workpiece mounting, the pressing cylinder 32 is pressed downwards again and is positioned through the positioning pin 312, the position of the tension spring thimble 310 for opening the tension spring 17 is ensured to be consistent with the position of the tension spring 17 for workpiece mounting, and the pressing plate cylinder 37 drives the pressing plate 38 to.
As shown in fig. 6 to 10, two ends of the pressing plate 38 are respectively provided with a waist-shaped hole 313, the downward pressing protrusion 39 is wedged into the waist-shaped hole 313 of the pressing plate 38, the tension spring thimble 310 slidably penetrates through the downward pressing protrusion 39, a protruding portion 316 of the downward pressing protrusion 39 is tightly attached to the outer wall of the tension spring thimble 310, and the distance between the two tension spring thimbles 310 is equal to the distance between the tension spring hooking lugs 172 at two ends of the tension spring 17 in a natural state, so that the tension spring 17 can be conveniently inserted and taken out; the width of the connecting block 319 of the downward pressing lug 39 is slightly smaller than the diameter of the waist-shaped hole 313, the widths of the upper retaining block 317 and the lower retaining block 318 of the downward pressing lug 39 are larger than the diameter of the waist-shaped hole 313, so that the extension spring thimble 310 can move to pull the extension spring 17 for pretension, two protruding parts 316 of the downward pressing lug 39 are respectively attached to the outer walls of two ends of a straight line passing through the central point of the extension spring thimble 310, so that the extension spring 17 can be inserted and bent conveniently, the thickness of the protruding part 316 of the downward pressing lug 39 is larger than the radius of the extension spring hook ears, the diameter of the extension spring thimble 310 is smaller than, when the pressing plate cylinder 37 drives the pressing plate 38 to press down, the convex part 316 of the pressing lug 39 presses down the tension spring hook ear 172 of the tension spring, so as to avoid pressing to the middle of the tension spring 17 to bend the tension spring 17, thereby facilitating installation by pressing the tension spring 17 to the position where the tension spring is installed on the workpiece, and the depressing projection 39 is integrally formed.
Principle of operation
The tension spring 17 of the tension spring feeding mechanism 1 is screened by a vibrating disc and then enters the guide rail 14, when the continuous feeding is carried out, the tension spring 17 slides in the guide rail 14, when the tension spring 17 touches the positioning baffle 16, the tension spring just slides out of the guide rail 14, the tension spring 17 falls under the action of gravity, so that the tension spring hook lug 172 lies on the tension spring boss 15, and the positioning is finished; the push rod of the pressing cylinder 32 of the tension spring assembly mechanism 3 drives the mounting plate 33 to move downwards, so as to drive the tension spring thimble 310 to move downwards and insert into the tension spring hook ears 172 at the two ends of the tension spring 17, the tension spring thimble 310 penetrates through the tension spring hook ears 172 and presses the tension spring boss 15 downwards, so that the support spring 111 is compressed, the support plate 113 supports and reversely extrudes the part of the tension spring main body 171, so that the tension spring hook ears 172 slide upwards along the tension spring thimble 310, the air claw of the air claw cylinder 34 is opened so that the tension spring thimble 310 pulls the tension spring 17 to pre-tension, so as to clamp the tension spring, the push rod of the pressing cylinder 32 is contracted to lift the tension spring 17, the fixing plate 31 is driven by the Y-axis stroke cylinder 5 to move along the Y-axis guide rail 2, the tension spring 17 is moved to the position where the tension spring 17 is mounted on the workpiece, the pressing cylinder 32 is pressed downwards again and is, the pressing plate cylinder 37 drives the pressing plate 38 to press downwards, and the convex part 316 of the downward pressing lug 39 presses the tension spring hook lug 172 of the tension spring 17 downwards, so that the tension spring is pressed to the workpiece mounting position for mounting.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.
Claims (10)
1. A tension spring feeding and assembling device is characterized by comprising an installation base, wherein a Y-axis guide rail is installed on the installation base, an assembling mechanism is installed on the Y-axis guide rail and connected with a Y-axis stroke cylinder, and the Y-axis stroke cylinder controls the assembling mechanism to move transversely along the Y-axis guide rail; the limit stroke department of mounting base installs the feed mechanism who mutually supports with assembly devices, assembly devices is in the control of Y axle stroke cylinder is down to the limit stroke department of mounting base, follows insert on the feed mechanism and get the extension spring, insert and get and rely on Y axle stroke cylinder to remove to the mounted position and accomplish the assembly after accomplishing.
2. The tension spring feeding and assembling device as recited in claim 1, wherein the feeding mechanism comprises a base, the base is connected with a connecting plate through a bolt, one side of the connecting plate, which is far away from the base, is provided with a connecting groove, one end of the connecting groove is clamped with the guide rail, a tension spring is arranged in the inner cavity of the guide rail in a sliding manner, the tension spring comprises a tension spring main body and a tension spring hook lug, the two ends of the tension spring main body are fixedly connected with tension spring hook lugs, the top surface of the other end of the connecting groove is connected with a positioning baffle plate through a bolt, the two sides of the contact surface of the connecting plate and the base are provided with mounting grooves which are positioned under the connecting grooves between the guide rails and the positioning baffle plates, slide joint extension spring boss in the mounting groove, in the mounting groove is run through and the spread groove between guide rail and location baffle is stretched into to the top of extension spring boss, installation supporting spring between extension spring boss bottom and mounting groove bottom.
3. The tension spring feeding and assembling device according to claim 1, wherein the assembling mechanism comprises a fixing plate, a down-pressing cylinder is fixedly installed on the top of the fixing plate, a push rod of the down-pressing cylinder penetrates through the fixing plate and is fixedly connected with a mounting plate, one end of a connecting column is fixedly connected to the edge of the side wall of the mounting plate, the other end of the connecting column is connected with a connecting plate through a bolt, a gas claw cylinder is fixedly installed on the side wall of the mounting plate between the connecting columns, a pressing plate cylinder is fixedly installed on the outer wall of the connecting plate far away from the gas claw cylinder, the push rod of the pressing plate cylinder is located below the connecting plate, one end of a pressing plate is fixedly connected to the push rod of the pressing plate cylinder, the other end of the pressing plate is located under two gas claws of the gas claw cylinder, a down-pressing bump is installed at the bottom of the pressing, the other end of the extension spring thimble slides and runs through the pressing plate and pushes down the lug, mounting panel bottom fixed mounting location base, the last installation locating pin of location base.
4. The tension spring feeding and assembling device as claimed in claim 2, wherein the width of the guide rail cavity is equal to the length of the tension spring main body, limiting grooves are formed in two sides of the guide rail cavity, and the tension spring hooking lugs are slidably clamped in the limiting grooves.
5. The tension spring feeding and assembling device as claimed in claim 2, wherein the tension spring boss is a rectangular parallelepiped structure with a square end face, the side length of the end face of the tension spring boss is greater than the diameter of the tension spring hook lug, the distance between the adjacent sides of the tension spring boss is equal to the length of the tension spring main body, and the adjacent side of the tension spring boss is flush with the side wall of the guide rail inner cavity.
6. The tension spring feeding and assembling device as claimed in claim 2, wherein a stop block is fixedly installed on the outer wall of one end of the tension spring boss close to the installation groove, a guide pin of a cylindrical structure is fixedly installed on the end face of one end of the tension spring boss close to the installation groove, the guide pin is slidably clamped in the support spring, the diameter of the guide pin is equal to the inner diameter of the support spring, the support spring is always in a compressed state, and the outer diameter of the support spring is equal to the width of the installation groove.
7. The tension spring loading and assembling device as claimed in claim 2, wherein a supporting plate is fixedly mounted at the bottom of the connecting groove between the tension spring bosses, two ends of the supporting plate are tightly attached to the outer wall of each tension spring boss, and the top of the supporting plate is of an arc structure attached to the outer wall of the tension spring main body.
8. The tension spring feeding and assembling device as claimed in claim 3, wherein a waist-shaped hole is formed at each of the two ends of the pressing plate, the downward pressing protrusion is wedged in the waist-shaped hole of the pressing plate, the tension spring ejector pin slidably penetrates through the downward pressing protrusion, the protruding portion of the downward pressing protrusion is tightly attached to the outer wall of the tension spring ejector pin, and the distance between the tension spring ejector pins is equal to the distance between the hook lugs at the two ends of the tension spring in a natural state of the tension spring, so that the tension spring can be conveniently inserted and taken.
9. The tension spring feeding and assembling device according to claim 8, wherein the width of the connecting block of the downward pressing protrusion is slightly smaller than the diameter of the kidney-shaped hole, the widths of the upper stopper and the lower stopper of the downward pressing protrusion are larger than the diameter of the kidney-shaped hole, and two protruding portions are provided and respectively attached to the outer walls of two ends of a straight line passing through the center point of the tension spring thimble.
10. The tension spring feeding and assembling device according to claim 8, wherein the hold-down protrusions are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020585278.0U CN212239905U (en) | 2020-04-17 | 2020-04-17 | Tension spring feeding and assembling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020585278.0U CN212239905U (en) | 2020-04-17 | 2020-04-17 | Tension spring feeding and assembling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212239905U true CN212239905U (en) | 2020-12-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020585278.0U Active CN212239905U (en) | 2020-04-17 | 2020-04-17 | Tension spring feeding and assembling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212239905U (en) |
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2020
- 2020-04-17 CN CN202020585278.0U patent/CN212239905U/en active Active
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