CN215240437U - Chain transmission double-screw clamp - Google Patents
Chain transmission double-screw clamp Download PDFInfo
- Publication number
- CN215240437U CN215240437U CN202121747951.7U CN202121747951U CN215240437U CN 215240437 U CN215240437 U CN 215240437U CN 202121747951 U CN202121747951 U CN 202121747951U CN 215240437 U CN215240437 U CN 215240437U
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- China
- Prior art keywords
- pressing plate
- fixed
- chain
- bayonet
- chain wheel
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- 230000005540 biological transmission Effects 0.000 title description 3
- 238000003825 pressing Methods 0.000 claims abstract description 44
- 125000006850 spacer group Chemical group 0.000 claims abstract description 7
- 238000003754 machining Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims 1
- 238000005452 bending Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The utility model discloses a chain drive double-screw clamp, including fixed clamp plate, movable clamp plate, sprocket chain mechanism, screw rod, sleeve pipe handle, spacer bush, nut, sprocket chain mechanism includes drive sprocket and driven sprocket that the interval set up from top to bottom, and a screw rod is worn to be equipped with through the fixed nut of inlaying in the middle part of each sprocket, the front end of sleeve pipe handle is fixed on the rear wall of drive sprocket to coaxial cover is outside its screw rod, movable clamp plate, fixed clamp plate suit in proper order on two screw rods from front to back, movable clamp plate fix on the screw rod, be provided with the mounting hole on the fixed clamp plate and be used for fixing on the workstation, install a spacer bush between the fixed clamp plate of every screw rod and the sprocket; the movable pressing plate is provided with a first bayonet facing backwards, and the fixed pressing plate is provided with a second bayonet facing forwards and used for clamping the component together. The large opening, easy operation and more uniform stress can meet the requirements of clamping and fixing components with different shapes and sizes.
Description
Technical Field
The utility model belongs to the technical field of mechanical fixture, concretely relates to utilize chain drive to make synchronous locking of twin-screw realize that the component presss from both sides tight device.
Background
At present, most of universal clamps adopt bench clamps, pipe tongs and the like, and because of the limitation of the size of a jaw, some slightly larger components cannot be fed and clamped; point-type pressure application such as bench clamp, pipe tongs leads to the atress inhomogeneous, and it is difficult to control to apply pressure, and the atress undersize is fixed difficult tight and is easily slipped, and the atress is too big leads to the deformation easily.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a big opening, easy operation, the more even fixture device of atress to it is fixed to satisfy the component clamp of different shapes and size.
Therefore, the utility model discloses the technical scheme who adopts does: a chain transmission double-screw clamp comprises a fixed pressing plate, a movable pressing plate, a chain wheel and chain mechanism, screws, a sleeve pipe handle, spacer bushes and nuts, wherein the chain wheel and chain mechanism comprises a driving chain wheel and a driven chain wheel which are arranged at an upper interval and a lower interval; the movable pressing plate is provided with a first bayonet facing backwards, and the fixed pressing plate is provided with a second bayonet facing forwards and used for clamping the component together.
Preferably, one of the two bayonets is a semicircular bayonet, and the other is an isosceles trapezoid bayonet. The isosceles trapezoid bayonet is high in universality, and only the semicircular bayonet needs to be replaced for members with different diameters, and the isosceles trapezoid bayonet does not need to be replaced.
Preferably, the first bayonet is detachably mounted on the rear wall of the movable pressing plate, and the second bayonet is formed by machining the left end and the right end of the fixed pressing plate after being bent forwards and vertically.
Preferably, the movable pressing plate is welded at the front ends of the two screw rods, and the welding and fixing mode is simple, firm and reliable.
Preferably, the lower ends of the left side and the right side of the fixed pressing plate are welded with L-shaped mounting plates, the L-shaped mounting plates are used for being fixed with the workbench, and the mounting holes are formed in the L-shaped mounting plates, so that the L-shaped mounting plates are convenient to process and manufacture.
More preferably, the sleeve handle is composed of a sleeve and two steel bars vertically welded on the outer surface of the sleeve.
The utility model has the advantages that: nuts are embedded in the two chain wheels, the single chain wheel is rotated, the double screws are synchronously stretched by utilizing the driving of a chain, the movable pressing plate is pushed to be tensioned, the movable pressing plate and the fixed pressing plate fixed on the workbench jointly realize the locking and fixing of the components, and the large opening is convenient for the rapid installation of the components; the movable pressing plate and the fixed pressing plate are oppositely provided with bayonets, single-point extrusion and fixation are changed into multi-point even contact surface uniform pressure application, so that the surface of the component is more uniformly pressed, the clamping is more firm, and the component is not prone to deformation. The clamp has the advantages of simple principle, convenient manufacture, flexible operation and safe and reliable clamping.
Drawings
Fig. 1 is a half sectional view of the present invention.
Fig. 2 is the axial measurement effect diagram of the present invention.
Detailed Description
The invention will be further described by way of examples with reference to the accompanying drawings:
referring to fig. 1-2, a chain-driven double-screw clamp is mainly composed of a fixed pressing plate 1, a movable pressing plate 2, a chain wheel and chain mechanism 3, a screw 4, a sleeve handle 5, a spacer 6 and a nut 7.
The chain wheel and chain mechanism 3 consists of a driving chain wheel 3a, a driven chain wheel 3b and a chain 3c, and the driving chain wheel 3a and the driven chain wheel 3b are arranged at intervals up and down. The middle part of each chain wheel is fixedly embedded with a nut 7, a screw rod 4 penetrates through the nut 7, the nut 7 is connected with the screw rod 4 through threads, the nut 7 rotates, and the screw rod 4 moves linearly back and forth.
The front end of the sleeve handle 5 is fixed on the rear wall of the driving chain wheel 3a and coaxially sleeved outside the screw rod 4. The sleeve handle 5, the driving chain wheel 3a and the nut 7 thereof and the screw rod 4 are coaxially arranged. The sleeve handle 5 is composed of a sleeve 5a and two reinforcing bars 5b perpendicularly welded to the outer surface of the sleeve 5 a.
The movable pressing plate 2 and the fixed pressing plate 1 are sequentially sleeved on the two screw rods 4 from front to back, the movable pressing plate 2 is fixed on the screw rods 4, and preferably, the movable pressing plate 2 is welded at the front ends of the two screw rods 4. The fixed pressing plate 1 is provided with mounting holes for fixing on a workbench, preferably, the lower ends of the left side and the right side of the fixed pressing plate 1 are welded with L-shaped mounting plates 8, and the mounting holes for fixing with the workbench are arranged on the L-shaped mounting plates 8.
A spacer bush 6 is arranged between the fixed pressing plate 1 of each screw rod 4 and the chain wheel and used for separating the fixed pressing plate 1 from the chain wheel, so that the large-area contact between the chain wheel and the fixed pressing plate 1 is avoided, and the rotation resistance is large.
The movable pressure plate 2 is provided with a first bayonet 2a facing backwards, and the fixed pressure plate 1 is provided with a second bayonet 1a facing forwards, which are used for clamping components together. Preferably, one of the two bayonets is a semicircular bayonets, and the other is an isosceles trapezoid bayonets. The isosceles trapezoid bayonet is convenient for workpieces to be loaded, and the radius of the semicircular bayonet is matched according to the size of the component, so that the clamping contact area is increased, and the stress of the component is more uniform.
The first bayonet 2a is detachably arranged on the rear wall of the movable pressing plate 2 and can be replaced according to the size specification of the component; the second bayonet 1a is formed by machining after the left end and the right end of the fixed pressing plate 1 are bent forwards and vertically, and the second bayonet 1a and the fixed pressing plate 1 are integrally formed.
The sleeve handle 5 rotates to drive the driving chain wheel 3a to rotate and then drive the nut 7 to rotate, so that the screw rod 4 is driven to move linearly back and forth. When the driving chain wheel 3a rotates, the chain 3c drives the driven chain wheel 3b to rotate, so that the single chain wheel is rotated, the double screws are synchronously stretched and contracted by the chain drive, the movable pressing plate 2 is pushed to be tensioned, and the component locking is realized together with the fixed pressing plate 1 fixed on the workbench.
Claims (6)
1. The utility model provides a chain drive double screw anchor clamps which characterized in that: comprises a fixed pressing plate (1), a movable pressing plate (2), a chain wheel and chain mechanism (3), a screw (4), a sleeve handle (5), a spacer bush (6) and a nut (7), the chain wheel and chain mechanism (3) comprises a driving chain wheel (3a) and a driven chain wheel (3b) which are arranged at intervals up and down, a screw rod (4) is arranged in the middle of each chain wheel in a penetrating way through a nut (7) which is fixedly embedded, the front end of the sleeve handle (5) is fixed on the rear wall of the driving chain wheel (3a), the movable pressing plate (2) and the fixed pressing plate (1) are sleeved on the two screw rods (4) in sequence from front to back, the movable pressing plate (2) is fixed on the screw rods (4), the fixed pressing plate (1) is provided with a mounting hole for fixing on a workbench, and a spacer bush (6) is arranged between the fixed pressing plate (1) and the chain wheel of each screw rod (4); the movable pressing plate (2) is provided with a first bayonet (2a) facing the rear, and the fixed pressing plate (1) is provided with a second bayonet (1a) facing the front and used for clamping the component together.
2. The chain driven twin screw clamp of claim 1, wherein: one of the two bayonets is a semicircular bayonet, and the other is an isosceles trapezoid bayonet.
3. The chain driven twin screw clamp of claim 2, wherein: the first bayonet (2a) is detachably mounted on the rear wall of the movable pressing plate (2), and the second bayonet (1a) is formed by forward and vertical bending of the left end and the right end of the fixed pressing plate (1) and machining.
4. The chain driven twin screw clamp of claim 1, wherein: the movable pressing plate (2) is welded at the front ends of the two screw rods (4).
5. The chain driven twin screw clamp of claim 1, wherein: the lower extreme welding of the fixed pressing plate (1) left and right sides has L shape mounting panel for with the workstation is fixed the mounting hole is seted up on L shape mounting panel.
6. The chain driven twin screw clamp of claim 1, wherein: the sleeve handle (5) consists of a sleeve (5a) and two reinforcing steel bars (5b) vertically welded on the outer surface of the sleeve (5 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121747951.7U CN215240437U (en) | 2021-07-29 | 2021-07-29 | Chain transmission double-screw clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121747951.7U CN215240437U (en) | 2021-07-29 | 2021-07-29 | Chain transmission double-screw clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215240437U true CN215240437U (en) | 2021-12-21 |
Family
ID=79495688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121747951.7U Active CN215240437U (en) | 2021-07-29 | 2021-07-29 | Chain transmission double-screw clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215240437U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115355858A (en) * | 2022-08-16 | 2022-11-18 | 庐江力翔电池科技有限责任公司 | Aluminum hull oral area size measurement restraint frock |
| CN116464726A (en) * | 2023-04-24 | 2023-07-21 | 中国恩菲工程技术有限公司 | Spring adjustment device, reaction device and spring adjustment method |
-
2021
- 2021-07-29 CN CN202121747951.7U patent/CN215240437U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115355858A (en) * | 2022-08-16 | 2022-11-18 | 庐江力翔电池科技有限责任公司 | Aluminum hull oral area size measurement restraint frock |
| CN116464726A (en) * | 2023-04-24 | 2023-07-21 | 中国恩菲工程技术有限公司 | Spring adjustment device, reaction device and spring adjustment method |
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