CN201684786U - Clamping structure of hydraulic clamping trolley - Google Patents
Clamping structure of hydraulic clamping trolley Download PDFInfo
- Publication number
- CN201684786U CN201684786U CN2010201415767U CN201020141576U CN201684786U CN 201684786 U CN201684786 U CN 201684786U CN 2010201415767 U CN2010201415767 U CN 2010201415767U CN 201020141576 U CN201020141576 U CN 201020141576U CN 201684786 U CN201684786 U CN 201684786U
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- Prior art keywords
- conical
- clamping
- head
- clamp body
- tension block
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- Expired - Fee Related
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Abstract
The utility model discloses a clamping structure of a hydraulic clamping trolley, which mainly comprises a clamp body. A tension block driven by a hydraulic oil cylinder and a conical press head matched with the tension block are arranged inside the clamp body, the tension block can be movably disposed inside the conical press head, the inner lateral face of the tension block is a conical face, a telescopic retaining conical rod driven by the hydraulic oil cylinder is further arranged inside the clamp body and is arranged at the center of the conical press head, a conical ejector head is arranged at the front end of the retaining conical rod, and the conical face of the conical ejector head is matched with the inner lateral face of the tension block. The clamping structure is simple in structure, accomplishes fine clamping effect, completely meets production requirements, can finish clamping acts without manufacturing a pull head, accordingly is simpler in production procedures, increases production efficiency, can completely avoid pipe waste in 'heading' and 'head removal', and effectively reduces production cost.
Description
Technical field
The utility model relates to the clamping structure in a kind of steel pipe's production, especially a kind of clamping structure of hydraulic clamp dolly.
Background technology
In the cold-drawn production technology of steel pipe, because the clamping structure deficiency structurally of existing hydraulic clamp dolly, in order to play good clamping effect, it is flat with the base pipe clamp to prevent to clamp dolly again, at first want the processing of taking the lead of base pipe, can be to make by the solid termination of the clamping structure clamping of hydraulic clamp dolly, promptly the drawing head carries out drawing procedure afterwards; The base pipe is extracted the base pipe, and then is decaptitated after the traction drawing by mould, cut away solid drawing head useless.So cycle operation reaches needed finished size until the base pipe.So in the technological process of this processing mode, the base pipe must via repeatedly " take the lead ", " decaptitating " operation, on the one hand make technological process more complicated, time-consuming, reduced production efficiency; On the other hand, also waste the pipe material, be unfavorable for the control of cost.
Summary of the invention
The purpose of this utility model is a kind of nothing of providing for the deficiency that solves above-mentioned technology and the clamping structure of the hydraulic clamp dolly that the drawing head just can clamp.
In order to achieve the above object, the clamping structure of the hydraulic clamp dolly that the utility model is designed, it mainly comprises clamp body, be provided with the tensioning piece that drives by hydraulic jack in the clamp body, and the conical indenter that matches with the tensioning piece, the tensioning piece is removably set in the conical indenter, the medial surface of described tensioning piece is the conical surface, also being provided with one in the described clamp body is driven by hydraulic jack, telescopic retaining awl bar, this retaining awl bar is positioned at the center of conical indenter, its front end is taper top, and the conical surface of this taper top matches with the medial surface of tensioning piece.Be relative X shape after the wing plate that steel tube place uses is repressed, after the wing plate of steel pipe stretched into dolly, two clamping cylinders of level travelled forward, and after the tensioning cover was clamped wing plate, center retaining awl bar stretched in wing plate, and it is close on the tensioning piece.
In order to reach good clamping effect, make clamping force more even, described tensioning piece is two semicircular tensioning covers, each tensioning cover is connected with clamping cylinder respectively.
The clamping structure of the hydraulic clamp dolly that the utility model obtains, simple in structure, and clamp respond well, satisfy production technology fully, can just can not finish the clamping action, make that not only whole production process is simpler, improve production efficiency by making the drawing head, and the pipe material waste that can avoid in the past " taking the lead ", " decaptitating " to be caused fully, effectively reduce production cost.
Description of drawings
Fig. 1 is the structural representation of embodiment 1.
Among the figure: clamp body 1, tensioning piece 2, conical indenter 3, retaining awl bar 4, taper top 5, clamping cylinder 6, wing plate 7, hydraulic jack 8.
The specific embodiment
The utility model will be further described in conjunction with the accompanying drawings below by embodiment.
As shown in Figure 1, the clamping structure of the described hydraulic clamp dolly of present embodiment, it mainly comprises clamp body 1, be provided with the tensioning piece 2 that drives by two clamping cylinders 6 in the clamp body 1, and the conical indenter 3 that matches with tensioning piece 2, tensioning piece 2 is removably set in the conical indenter 3, described tensioning piece 2 is two semicircular tensioning covers, its medial surface is the conical surface, also being provided with one in the described clamp body 1 is driven by hydraulic jack 8, telescopic retaining awl bar 4, this retaining awl bar 4 is positioned at the center of conical indenter 3, and its front end is taper top 5, and the conical surface of this taper top 5 matches with the medial surface of tensioning piece 2.
When producing, be relative X shape after wing plate that steel tube place uses 7 is repressed, after the wing plate 7 of steel pipe stretches into dolly, two clamping cylinders of level travel forward, tensioning is enclosed within the effect of conical indenter 3 conical surfaces shrinks gradually, after clamping wing plate 7, hydraulic jack 8 actions, center retaining awl bar 4 is stretched in wing plate 7, and wing plate 7 is close on the tensioning piece 2, thereby play good clamping effect, and draw backward when dialling motion when dolly, all taperings can make " pulling force is big more, and clamping force is strong more ", with wing plate 7 more firm grip in dolly.
The clamping structure of this hydraulic clamp dolly, simple in structure, and clamp respond well, satisfy production technology fully, can just can not finish the clamping action, make that not only whole production process is simpler, improve production efficiency by making the drawing head, and the pipe material waste that can avoid in the past " taking the lead ", " decaptitating " to be caused fully, effectively reduce production cost.
Claims (2)
1. the clamping structure of a hydraulic clamp dolly, it mainly comprises clamp body, be provided with the tensioning piece that drives by hydraulic jack in the clamp body, and the conical indenter that matches with the tensioning piece, the tensioning piece is removably set in the conical indenter, the medial surface that it is characterized in that described tensioning piece is the conical surface, also be provided with a retaining awl bar that drive by hydraulic jack, telescopic in the described clamp body, this retaining awl bar is positioned at the center of conical indenter, its front end is taper top, and the conical surface of this taper top matches with the medial surface of tensioning piece.
2. the clamping structure of hydraulic clamp dolly according to claim 1 is characterized in that described tensioning piece is two semicircular tensioning covers, and each tensioning cover is connected with clamping cylinder respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201415767U CN201684786U (en) | 2010-03-25 | 2010-03-25 | Clamping structure of hydraulic clamping trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201415767U CN201684786U (en) | 2010-03-25 | 2010-03-25 | Clamping structure of hydraulic clamping trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201684786U true CN201684786U (en) | 2010-12-29 |
Family
ID=43373077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201415767U Expired - Fee Related CN201684786U (en) | 2010-03-25 | 2010-03-25 | Clamping structure of hydraulic clamping trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201684786U (en) |
-
2010
- 2010-03-25 CN CN2010201415767U patent/CN201684786U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20130325 |