CN112207728A - Clamping tool for special-shaped workpiece - Google Patents
Clamping tool for special-shaped workpiece Download PDFInfo
- Publication number
- CN112207728A CN112207728A CN202011050117.2A CN202011050117A CN112207728A CN 112207728 A CN112207728 A CN 112207728A CN 202011050117 A CN202011050117 A CN 202011050117A CN 112207728 A CN112207728 A CN 112207728A
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- CN
- China
- Prior art keywords
- clamp body
- movable clamp
- supporting seat
- lead screw
- movable
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- 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.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B1/00—Vices
- B25B1/02—Vices with sliding jaws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B1/00—Vices
- B25B1/06—Arrangements for positively actuating jaws
- B25B1/10—Arrangements for positively actuating jaws using screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B1/00—Vices
- B25B1/24—Details, e.g. jaws of special shape, slideways
- B25B1/2405—Construction of the jaws
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
- Jigs For Machine Tools (AREA)
Abstract
A clamping tool for a profiled workpiece. The problem that when an existing bench vice is used for clamping a cylinder and an irregular-shaped workpiece, the workpiece is easy to displace, and machining precision is reduced is mainly solved. The method is characterized in that: the upper part of the base (10) is provided with two parallel guide rails, the two guide rails are respectively provided with a movable clamp body assembly, the movable clamp body assembly comprises a first clamp body supporting seat (4), the first clamp body supporting seat (4) is connected with a first movable clamp body (2), one side of the first movable clamp body (2) is a straight surface, the other side of the first movable clamp body is an arc surface, the radian of the arc surface is more than 180 degrees, and the first movable clamp body (2) is matched with the first clamp body supporting seat (4) through the arc surface; the screw rod support (6) is connected with a propelling mechanism, and the front end of the propelling mechanism is connected with a movable clamp body assembly. The clamping tool can realize reliable clamping of curved surface bodies such as cylinders and irregular-shaped workpieces, thereby improving the machining precision and being safe to operate.
Description
Technical Field
The invention relates to the field of machinery, in particular to a clamping tool for a special-shaped workpiece.
Background
Most of the existing bench vices are a pair of parallel jaws, one end of the parallel jaw is a fixed jaw, the other end of the parallel jaw is a movable jaw pushed by a screw mechanism, and a workpiece is clamped by pushing the movable jaw. When the bench vice is used for clamping cylindrical, curved and irregular parts, the parallel jaw can only realize two-point clamping, and when the bench vice is used for machining, the cutting force is large, so that a workpiece is easy to displace, the machining precision is reduced, and potential safety hazards exist.
Disclosure of Invention
In order to overcome the defect that when the conventional bench vice is used for clamping a cylindrical workpiece and an irregular workpiece, the workpiece is easy to displace so that the machining precision is reduced, the invention provides the clamping tool for the irregular workpiece, and the clamping tool can realize reliable clamping of curved surface bodies such as the cylindrical workpiece and the irregular workpiece, so that the machining precision is improved, and the operation is safe.
The technical scheme of the invention is as follows: a clamping tool for a special-shaped workpiece comprises a base, wherein a fixed clamp body is arranged at one end of the upper portion of the base, a screw rod support is arranged at the other end of the upper portion of the base, two parallel guide rails are arranged between the fixed clamp body and the screw rod support at the upper portion of the base, a first movable clamp body assembly and a second movable clamp body assembly are arranged on the two guide rails respectively, the first movable clamp body assembly comprises a first clamp body supporting seat connected onto the guide rails, a first movable clamp body is connected onto the first clamp body supporting seat through a first clamp body pin shaft, one side of the first movable clamp body is a straight surface, the other side of the first movable clamp body is an arc surface, the radian of the arc surface is larger than that of the first movable clamp body, and the first movable clamp body is matched; the second movable clamp body assembly comprises a second clamp body supporting seat on the guide rail, a second movable clamp body is connected to the second clamp body supporting seat through a second clamp body pin shaft, one side of the second movable clamp body is a straight surface, the other side of the second movable clamp body is an arc surface, the radian of the arc surface is larger than that of the arc surface, and the second movable clamp body is matched with the second clamp body supporting seat through the arc surface; the screw rod support is connected with a propelling mechanism, and the front end of the propelling mechanism is connected with a first movable clamp body assembly and a second movable clamp body assembly.
The propelling mechanism comprises a first lead screw and a second lead screw, the front end of the first lead screw is connected to the first clamp body supporting seat, and the front end of the second lead screw is connected to the second clamp body supporting seat.
The propelling mechanism comprises a first screw and a second screw, wherein the front end of the first screw is connected with a fixing plate, one end of the fixing plate is fixed on the first clamp body supporting seat, the other end of the fixing plate is located behind the second clamp body supporting seat, the second screw is connected to the fixing plate, and the front end of the second screw is connected with the second clamp body supporting seat.
The first clamp body supporting seat is connected with the second clamp body supporting seat through a dovetail groove.
A first clamp body pin shaft sleeve is arranged between the first movable clamp body and the first clamp body pin shaft, the first movable clamp body and the first clamp body pin shaft sleeve are in interference fit, and the first clamp body pin shaft sleeve and the first clamp body pin shaft are in clearance fit.
The invention has the following beneficial effects: by adopting the scheme, one fixed clamp body and two movable clamp bodies are adopted, and one side of each movable clamp body is a straight surface and the other side of each movable clamp body is an arc surface, so that when a curved surface body or an irregular workpiece is machined, a clamping surface can be selected according to the shape of the workpiece, the clamping is firmer, the workpiece is prevented from displacing during machining, the machining precision of the workpiece is improved, and safety accidents are avoided.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a cross-sectional view taken along line C-C of FIG. 1;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 5 is a top plan view of a second propulsion mechanism;
FIG. 6 is a top view of the first embodiment;
FIG. 7 is a plan view of the second embodiment;
FIG. 8 is a plan view of the third embodiment.
In the figure, 1-a fixed jaw, 2-a first movable clamp body, 3-a first clamp body pin shaft sleeve, 4-a first clamp body supporting seat, 5-a first lead screw fixing pin, 6-a lead screw supporting seat, 7-a lead screw sleeve fastening screw, 8-a first lead screw sleeve, 9-a first lead screw, 10-a base, 11-a first clamp body pin shaft, 12-a second movable clamp body, 13-a second clamp body pin shaft sleeve, 14-a second clamp body supporting seat, 15-a second lead screw fixing pin, 19-a second lead screw, 20-a fixing plate and 21-a second clamp body pin shaft.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1 to 5, a clamping tool for a special-shaped workpiece includes a base 10, a fixed clamp body 1 is disposed at one end of the upper portion of the base 10, the fixed clamp body 1 is fixed on the base 10, and a clamping surface is a straight surface. The other end of the upper part of the base 10 is provided with a screw rod support 6, two parallel guide rails are arranged between the fixed clamp body 1 on the upper part of the base 10 and the screw rod support 6, the guide rails can be in a dovetail shape or a rectangular shape, and a first movable clamp body assembly and a second movable clamp body assembly are respectively connected onto the two guide rails. The first movable clamp assembly comprises a first clamp supporting seat 4 connected to the guide rail, a first movable clamp 2 is connected to the first clamp supporting seat 4 through a first clamp pin shaft 11, a first clamp pin shaft sleeve 3 is arranged between the first movable clamp 2 and the first clamp pin shaft 11, the first movable clamp 2 and the first clamp pin shaft sleeve 3 are in interference fit, the first clamp pin shaft sleeve 3 and the first clamp pin shaft 11 are in clearance fit, the first clamp pin shaft sleeve 3 is made of copper and rotates together with the first movable clamp 2, and the first clamp pin shaft 11 can be protected. One side of the first movable clamp body 2 is a straight surface, the other side of the first movable clamp body is an arc surface, and the radian of the arc surface is larger than 180 degrees. The first movable clamp body 2 is matched with the first clamp body supporting seat 4 through an arc surface, and a gap is reserved between the first movable clamp body and the first clamp body supporting seat, so that the first movable clamp body 2 can rotate freely.
The second movable caliper body assembly is the same as the first movable caliper body assembly in structure and comprises a second caliper body supporting seat 14 on the guide rail, a second movable caliper body 12 is connected to the second caliper body supporting seat 14 through a second caliper body pin shaft 21, similarly, a second caliper body pin shaft sleeve 13 is arranged between the second movable caliper body 12 and the second caliper body pin shaft 21, the second movable caliper body 12 and the second caliper body pin shaft sleeve 13 are in interference fit, the second caliper body pin shaft sleeve 13 and the second caliper body pin shaft 21 are in clearance fit, the second caliper body pin shaft sleeve 13 is made of copper and rotates along with the second movable caliper body 12, and the second caliper body pin shaft 21 can be protected. Similarly, one side of the second movable clamp body 12 is a straight surface, the other side is an arc surface, the radian of the arc surface is larger than 180 degrees, the second movable clamp body 12 is matched with the second clamp body supporting seat 14 through the arc surface, and a gap is reserved between the second movable clamp body and the second movable clamp body.
The first caliper body support seat 4 and the second caliper body support seat 14 are connected through a dovetail groove, and can slide along the guide rail together or relatively slide.
The screw support 6 is connected with a propelling mechanism, and the structure of the propelling mechanism is divided into two conditions:
the first method comprises the following steps: the propelling mechanism comprises a first lead screw 9 and a second lead screw 19, the first lead screw 9 penetrates through the lead screw support 6, a first lead screw sleeve 8 is arranged between the first lead screw 9 and the lead screw support 6, and the first lead screw sleeve 8 is fixed on the lead screw support 6 through a lead screw sleeve fastening screw 7. The front end of a first lead screw 9 is connected to a first clamp body supporting seat 4 through a first lead screw fixing pin 5, a second lead screw 19 also penetrates through a lead screw supporting seat 6, the front end of the second lead screw 19 is connected to a second clamp body supporting seat 14 through a second lead screw fixing pin 15, and the two lead screws can respectively control the two movable clamp body assemblies to move.
And the second method comprises the following steps: the propelling mechanism comprises a first screw rod 9 and a second screw rod 19, wherein the front end of the first screw rod 9 is connected with a fixing plate 20, one end of the fixing plate 20 is fixed on the first caliper body supporting seat 4, the other end of the fixing plate 20 is positioned behind the second caliper body supporting seat 14, and the fixing plate 20 is not connected with the second caliper body supporting seat 14. The second lead screw 19 is connected to the fixing plate 20, and the front end thereof is connected to the second caliper body support base 14. Thus, the first lead screw 9 is a main lead screw and can simultaneously control the two movable caliper body assemblies to move, and the second lead screw 19 is an auxiliary lead screw and can control the second movable caliper body assemblies to move for fine adjustment.
When the clamping tool is used, different clamping tools can be selected according to different shapes of clamped workpieces. The following examples illustrate:
the first embodiment is as follows: as shown in fig. 6, when clamping a polygonal workpiece, one straight edge of the workpiece can be tightly attached to the fixed caliper body 1, the positions of the first caliper body support seat 4 and the second caliper body support seat 14 are adjusted by the lead screw, so that the straight edges of the first movable caliper body 2 and the second movable caliper body 12 are aligned with the workpiece, and then the first lead screw 9 and the second lead screw 19 are respectively screwed, so that the directions of the two movable caliper bodies are automatically adjusted, and the workpiece is clamped.
Example two: as shown in fig. 7, when clamping a cylindrical or spherical workpiece, the arc surfaces of the first movable clamp body 2 and the second movable clamp body 12 are aligned with the workpiece, the screw is tightened, and the two movable clamp bodies and the fixed clamp body 1 form three-point clamping together, so that clamping is more reliable.
Example three: as shown in fig. 8, a second type of clamping tool may be used when clamping irregularly shaped workpieces. One straight edge of a workpiece is tightly attached to the fixed clamp body 1, the first lead screw 9 is rotated to enable the first movable clamp body 2 to be tightly attached to one side of the workpiece, then the second lead screw 19 is rotated to enable the second movable clamp body 12 to be tightly attached to the other side of the workpiece, and the lead screw is screwed down to clamp the workpiece.
Claims (5)
1. The utility model provides a clamping tool for heterotypic work piece, includes base (10), and base (10) upper portion one end is equipped with fixed pincers body (1), and the other end is equipped with lead screw support (6), its characterized in that: two parallel guide rails are arranged between a fixed clamp body (1) at the upper part of the base (10) and the screw support (6), a first movable clamp body assembly and a second movable clamp body assembly are respectively arranged on the two guide rails, the first movable clamp body assembly comprises a first clamp body support seat (4) connected onto the guide rails, a first movable clamp body (2) is connected onto the first clamp body support seat (4) through a first clamp body pin shaft (11), one side of the first movable clamp body (2) is a straight surface, the other side of the first movable clamp body is an arc surface, the radian of the arc surface is larger than 180 degrees, and the first movable clamp body (2) is matched with the first clamp body support seat (4) through the arc surface; the second movable clamp body assembly comprises a second clamp body supporting seat (14) on the guide rail, the second clamp body supporting seat (14) is connected with a second movable clamp body (12) through a second clamp body pin shaft (21), one side of the second movable clamp body (12) is a straight surface, the other side of the second movable clamp body is an arc surface, the radian of the arc surface is larger than 180 degrees, and the second movable clamp body (12) is matched with the second clamp body supporting seat (14) through the arc surface; the screw rod support (6) is connected with a propelling mechanism, and the front end of the propelling mechanism is connected with the first movable clamp body assembly and the second movable clamp body assembly.
2. A clamping tool for profiled workpieces as claimed in claim 1, wherein: the propelling mechanism comprises a first lead screw (9) and a second lead screw (19), the front end of the first lead screw (9) is connected to the first clamp body supporting seat (4), and the front end of the second lead screw (19) is connected to the second clamp body supporting seat (14).
3. A clamping tool for profiled workpieces as claimed in claim 1, wherein: the propelling mechanism comprises a first lead screw (9) and a second lead screw (19), wherein the front end of the first lead screw (9) is connected with a fixing plate (20), one end of the fixing plate (20) is fixed on the first clamp body supporting seat (4), the other end of the fixing plate is located behind the second clamp body supporting seat (14), the second lead screw (19) is connected onto the fixing plate (20), and the front end of the second lead screw is connected with the second clamp body supporting seat (14).
4. A clamping tool for profiled workpieces according to claim 2 or 3, characterized in that: the first clamp body supporting seat (4) is connected with the second clamp body supporting seat (14) through a dovetail groove.
5. A clamping tool for profiled workpieces according to claim 4, characterized in that: a first clamp body pin shaft sleeve (3) is arranged between the first movable clamp body (2) and the first clamp body pin shaft (11), the first movable clamp body (2) and the first clamp body pin shaft sleeve (3) are in interference fit, and the first clamp body pin shaft sleeve (3) and the first clamp body pin shaft (11) are in clearance fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011050117.2A CN112207728A (en) | 2020-09-29 | 2020-09-29 | Clamping tool for special-shaped workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011050117.2A CN112207728A (en) | 2020-09-29 | 2020-09-29 | Clamping tool for special-shaped workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112207728A true CN112207728A (en) | 2021-01-12 |
Family
ID=74051428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011050117.2A Pending CN112207728A (en) | 2020-09-29 | 2020-09-29 | Clamping tool for special-shaped workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112207728A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2157203A (en) * | 1983-12-23 | 1985-10-23 | Yang Tai Her | Servo-clamping device |
| CN2092403U (en) * | 1990-12-28 | 1992-01-08 | 李辉 | Bench clamp with quick locking and force limitting arrangement |
| GB2273896A (en) * | 1993-01-04 | 1994-07-06 | Yang Tai Her | Clamping device |
| CN2257510Y (en) * | 1996-07-10 | 1997-07-09 | 湖南胜基电子有限公司 | Multifunction jaw vice |
| CN101138839A (en) * | 2006-09-05 | 2008-03-12 | 刘慧� | High-precision round-mouth vice |
| CN105014421A (en) * | 2014-04-21 | 2015-11-04 | 唐嘉溢 | Self-adaptive flat tongs |
| CN208663536U (en) * | 2018-08-27 | 2019-03-29 | 四川工程职业技术学院 | A kind of flat-nose pliers |
-
2020
- 2020-09-29 CN CN202011050117.2A patent/CN112207728A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2157203A (en) * | 1983-12-23 | 1985-10-23 | Yang Tai Her | Servo-clamping device |
| CN2092403U (en) * | 1990-12-28 | 1992-01-08 | 李辉 | Bench clamp with quick locking and force limitting arrangement |
| GB2273896A (en) * | 1993-01-04 | 1994-07-06 | Yang Tai Her | Clamping device |
| CN2257510Y (en) * | 1996-07-10 | 1997-07-09 | 湖南胜基电子有限公司 | Multifunction jaw vice |
| CN101138839A (en) * | 2006-09-05 | 2008-03-12 | 刘慧� | High-precision round-mouth vice |
| CN105014421A (en) * | 2014-04-21 | 2015-11-04 | 唐嘉溢 | Self-adaptive flat tongs |
| CN208663536U (en) * | 2018-08-27 | 2019-03-29 | 四川工程职业技术学院 | A kind of flat-nose pliers |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210112 |
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| RJ01 | Rejection of invention patent application after publication |