CN210256187U - Adjustable connecting rod positioning clamp - Google Patents
Adjustable connecting rod positioning clamp Download PDFInfo
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- CN210256187U CN210256187U CN201920818165.8U CN201920818165U CN210256187U CN 210256187 U CN210256187 U CN 210256187U CN 201920818165 U CN201920818165 U CN 201920818165U CN 210256187 U CN210256187 U CN 210256187U
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- clamping
- groove
- clamping arm
- connecting rod
- rod positioning
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Abstract
An adjustable connecting rod positioning clamp comprises a clamp body, an output rod, a connecting rod mechanism and a clamping device; wherein, clamping device includes: the connecting structure of the clamping arm and the connecting rod mechanism allows the clamping arm to be rotatably adjusted and is provided with a fixing device which can prevent the clamping arm from moving; the connection of the clamping arm to the clamping jaw allows a lateral sliding adjustment and is provided with a fastening device preventing the clamping jaw from moving. The clamping position of the connecting rod positioning clamp can be adjusted in multiple directions, the clamping position comprises rotation of the clamping claw and transverse movement of the clamping claw, and the eccentric load induced by the offset lever and simultaneous distortion, bending or deformation of clamping can be effectively reduced by matching with a plurality of symmetrical loosening gaskets on the clamping claw, so that uneven clamping force is caused.
Description
Technical Field
The utility model relates to a will supply tight clamping device of work piece etc. clamp of machining, specifically be relate to a connecting rod positioning fixture with adjustable.
Background
Conventional link clamps are designed to hold parts directly in front of the clamp and therefore must be equipped with offset clamping levers to hold parts offset from the front face of the clamp. Unfortunately, the offset lever induces a high eccentric load and therefore requires a low clamp pressure to prevent damage to the tool. The offset lever may also twist, bend or deform while clamping, causing uneven clamping force.
Adjustable link clamps have been developed to allow clamping at different positions relative to the clamp housing, but known versions of these adjustable clamps suffer from various limitations that limit their utility.
Disclosure of Invention
The technical problems are as follows:
in a first aspect, the present invention provides a link positioning fixture that provides an adjustable clamping position from the side of the part, multiple clamping positions, and effective reduction of offset lever induced eccentric loading.
The technical scheme is as follows:
the utility model provides a connecting rod positioning fixture with adjustable, its includes binding clasp body, output rod, link mechanism and clamping device, the output rod can be along the axial do telescopic movement, drive clamping device through link mechanism and do and loosen and press from both sides tight action, clamping device include: the clamping mechanism comprises a clamping arm and a clamping claw, wherein a connecting rod of the connecting rod mechanism is provided with a first groove, one end of the clamping arm can be inserted into the first groove in a matching mode, the insertion angle of the clamping arm can be adjusted in a rotating mode, and a fixing device is arranged to prevent the clamping arm from moving; the clamping claw is provided with a second groove, the other end of the clamping arm can be inserted into the second groove in a matching mode, the insertion position of the clamping arm can be adjusted in a transverse moving mode, and fixing devices are arranged to prevent the clamping claw from moving.
The first groove is a columnar groove; correspondingly, one end of the clamping arm is matched with the columnar groove to be columnar.
The side surface of the columnar groove can be a plurality of edges, and the edges are symmetrically distributed; the grooves can also be smooth strip-shaped grooves which are symmetrically distributed; correspondingly, one end of the clamping arm is matched with the columnar groove, and the outer surface of the clamping arm is provided with a plurality of symmetrically distributed edges or a plurality of symmetrically distributed smooth strip-shaped bulges.
The columnar groove can be selected from a square column, a triangular column, a prism and a spline groove; the side surface of the spline groove can be or is not provided with a plurality of ridges, and the side surface of the spline groove can be or is not provided with a smooth strip-shaped groove; correspondingly, one end of the clamping arm is matched with the columnar groove, and the outer surface of the clamping arm is a square column, a triangular column, a prism and a spline shaft.
The columnar groove is a spline groove; the side surface of the spline groove is provided with a plurality of ridges; correspondingly, one end of the clamping arm is a spline shaft, and the outer surface of the clamping arm is provided with a plurality of ridges.
The fixing device comprises a screw hole, a screw and an annular groove; the screw hole is arranged at one side of the first groove, and the annular groove is arranged at one end of the clamping arm; the screw can be embedded into the annular groove of the clamping arm through the screw hole, and the front position and the rear position of the clamping arm are fixed.
The second groove is a columnar groove; correspondingly, the other end of the clamping arm is matched with the columnar groove to be columnar.
Two edges of the cross section of the columnar groove are arranged in parallel, and the edges on the other two sides are or are not arranged in parallel; correspondingly, two sides of the clamping arm are arranged in parallel, and the sides on the other two sides are or are not arranged in parallel.
The other two edges are circular arcs, and the two circular arcs are symmetrically arranged; correspondingly, the edges on the other two sides are symmetrically arranged circular arcs.
The clamping jaw is also provided with a plurality of anti-loosening gaskets, the anti-loosening gaskets are symmetrically arranged on the clamping jaw, and the surfaces of the anti-loosening gaskets are provided with grains.
The invention has the beneficial effects that: the invention provides a connecting rod positioning clamp, wherein the clamping position of the connecting rod positioning clamp can be adjusted in multiple directions, including the rotation of a clamping claw and the transverse movement of the clamping claw; the symmetrical multiple loosening pads on the cooperating clamping jaws may effectively reduce offset lever induced eccentric loads and simultaneous twisting, bending or distortion of the clamping, resulting in uneven clamping forces.
Drawings
FIG. 1 is a schematic view of an adjustable connecting rod positioning fixture mounting arrangement.
FIG. 2 is a cross-sectional view of the clamp arm spline shaft.
FIG. 3 is a cross-sectional view of the clamp arm spline shaft.
FIG. 4 is a cross-sectional view of a connecting rod spline groove.
FIG. 5 is a cross-sectional view of a connecting rod spline groove.
FIG. 6 is a top view of the clamping jaw.
FIG. 7 is a cross-sectional view of the clamping jaw.
Fig. 8 is a schematic view of an installation structure of the check washer.
Fig. 9 is a front view of the clamp arm.
Fig. 10 is a top view of the clamp arm.
Fig. 11 is a left side view of the clamp arm.
FIG. 12 is a schematic view of a clamp arm and clamp jaw mounting arrangement.
In the figure, 1-gripper body, 2-output rod, 3-linkage, 31-link, 4-gripper, 5-gripper arm, 51-spline shaft, 6-gripper jaw, 61-anti-loose washer, 7-first groove, 7A-spline groove, 8-fixture, 81-screw, 82-screw hole, 83-annular groove, 9-second groove, 91-arc, 10-fastening device.
Detailed Description
An adjustable connecting rod positioning jig according to the present invention will be described in detail with reference to the accompanying drawings.
The invention is mainly used for clamping workpieces and the like for machining, can fasten parts to a fixture, and is convenient for machining and working on the parts.
As can be seen from fig. 1, 2, 3, 4, 5, 9, 10, 11, and 12, the adjustable connecting rod positioning fixture of the present invention includes a fixture body 1, an output rod 2, a connecting rod mechanism 3, and a clamping device 4, wherein the output rod 2 can perform telescopic movement along an axial direction, and the connecting rod mechanism 3 drives the clamping device 4 to perform loosening and clamping actions, and the clamping device 4 includes: a clamping arm 5 and a clamping claw 6, wherein a connecting rod 31 of the connecting rod mechanism 3 is provided with a first groove 7, one end of the clamping arm 5 can be inserted into the first groove 7 in a matching way, the insertion angle can be adjusted in a rotating way, and a fixing device 8 is arranged to prevent the clamping arm 5 from moving; the clamping jaw 6 is provided with a second recess 9, into which the other end of the clamping arm 5 is fittingly insertable, the width of which allows lateral sliding adjustment and is provided with a fastening device 10 preventing the clamping jaw 6 from moving.
As can be seen from fig. 1, 2, 3, 4, 5, 9, 10, 11, and 12, the first groove 7 and the clamping arm 5 are fittingly insertable, and the insertion angle thereof is rotatably adjustable, so that the connection structure of the first groove 7 and the clamping arm 5 is a key for realizing the rotation adjustment, and a non-cylindrical groove is also connected with the clamping arm 5; however, in view of the function of the rotation adjustment and the need for an adaptive insertion and angle adjustment, the first recess 7 is designed as a cylindrical recess, and accordingly, the end of the clamping arm 5 and the cylindrical recess are adapted to be cylindrical.
Preferably, the side surface of the columnar groove can be a plurality of edges, and the edges are symmetrically distributed; the grooves can also be smooth strip-shaped grooves which are symmetrically distributed; correspondingly, one end of the clamping arm 5 is matched with the columnar groove, and the outer surface of the clamping arm is provided with a plurality of symmetrically distributed edges or a plurality of symmetrically distributed smooth strip-shaped bulges; the clamping arm has the advantages that the plurality of ridges and the strip-shaped grooves which are symmetrically distributed are beneficial to rotatably adjusting the angle of the clamping arm 5, and simultaneously play a role in fixing the clamping arm 5 in the radial direction to prevent the clamping arm 5 from rotating in the radial direction.
Preferably, the columnar groove can be selected from a square column, a triangular column, a prism and a spline groove 7A; the key groove of the spline groove 7A can be provided with a plurality of ridges or smooth strip grooves; correspondingly, one end of the clamping arm 5 is matched with the columnar groove, and the outer surface of the clamping arm is a square column, a triangular column, a prism and a spline shaft 51.
Preferably, the cylindrical groove is a spline groove 7A; the key groove of the spline groove is provided with a plurality of edges; correspondingly, one end of the clamping arm 5 is a spline shaft 51, and a spline groove of the spline shaft has a plurality of edges. The multi-direction adjustment mechanism has the advantages that the spline key grooves are more, and multi-direction rotation adjustment is facilitated.
In order to prevent the clamp arm 5 from moving in the working state (clamping state), thereby causing the workpiece to twist, bend or deform, resulting in uneven clamping force; a fixing device 8 needs to be added.
The fixing device comprises a screw hole 82, a screw 81 and an annular groove 83; the screw hole 82 is arranged at one side of the first groove 7, and the annular groove 83 is arranged at one end of the clamping arm 5; the screw 81 can be inserted into the annular groove 83 of the clamp arm 5 through the screw hole 82 and fix the clamp arm 5 in the front-rear position.
As can be seen from fig. 1, 2, 3, 4, 5, 9, 10, 11 and 12, the second groove 9 is a cylindrical groove; correspondingly, the other end of the clamping arm 5 is matched with the columnar groove to be columnar.
Preferably, two sides of the cross section of the columnar groove are arranged in parallel, and the sides on the other two sides are or are not arranged in parallel; correspondingly, two sides of the clamping arm 5 are arranged in parallel, and the sides on the other two sides are or are not arranged in parallel; the cross section of the columnar groove is parallel to two edges, so that the relative positions of the clamping arm 5 and the clamping claw 6 can be adjusted conveniently in a transverse sliding mode.
Preferably, the other two sides are circular arcs 91, and the two circular arcs 91 are symmetrically arranged; correspondingly, the edges of the other two sides of the clamping arm 5 are symmetrically arranged circular arcs 91.
As can be seen from fig. 6, 7, 8 and 12, in order to prevent the clamping member from being damaged while the part has uniform clamping force at one end of the clamping jaw 6 for clamping the part, the invention further provides a plurality of anti-loose washers 61 on the clamping jaw 6, wherein the anti-loose washers 61 are symmetrically arranged on the clamping jaw 6, and the surfaces of the anti-loose washers 61 are provided with grains.
Example 1
As can be seen from fig. 1, an adjustable connecting rod positioning fixture comprises a fixture body 1, an output rod 2, a link mechanism 3 and a clamping device 4, wherein the output rod 2 can move in a telescopic manner along an axial direction, the clamping device 4 is driven by the link mechanism 3 to perform loosening and clamping actions, and the clamping device 4 comprises: a clamping arm 5 and a clamping jaw 6; wherein one end of the clamping arm 5 is connected with the connecting rod 31 of the link mechanism 3, and the other end is connected with the clamping claw 6. When the connecting rod positioning clamp works, the clamp body 1 drives the output rod 2 to do axial telescopic movement, and the connecting rod 31 drives the clamping arm 5 and the clamping claw 6 to do clamping action; wherein the connection structure of the clamping arm 5 and the linkage 3 allows for rotational adjustment and is provided with a fixing device 8 to prevent the clamping arm 5 from moving; wherein the connection of the clamping arm 5 to the clamping jaw 6 allows a lateral sliding adjustment thereof and is provided with a fastening device 10 preventing the clamping jaw 6 from moving.
As can be seen from fig. 2, 3, 4, 5, 9, 10, and 11, spline shafts 51 are provided at one end of the clamp arm 5 connected to the connecting rod 31, and 6 spline grooves of the spline shafts 51 are symmetrical; the spline shaft 51 is also provided with an annular groove 83; correspondingly, the connecting rod 31 is provided with a matched spline groove 7A, one side of the connecting rod 31 is provided with a symmetrical screw hole 82, and the position of the screw hole 82 is matched with the position of the annular groove 83 on the spline shaft 51. When the connecting rod 31 is assembled with the clamping arm 5, the spline shaft 51 at one end of the clamping arm 5 adjusts the position of the clamping arm 5 inserted into the connecting rod 31 according to the required clamping position, and after the clamping arm is inserted to be close to the bottom of the connecting rod, the screw 81 is inserted into the screw hole 82 at one side of the connecting rod 31 for fastening.
As can be seen from fig. 6, 7, 8, 9, 10 and 11, the clamping claw 6 is provided with a second groove 9, the second groove 9 is a cylindrical groove, two opposite sides of the second groove are arranged in parallel, and the other two opposite sides are symmetrical circular arcs 91. The other side of the clamping claw 6 is used for clamping and positioning the part; and two anti-loosening gaskets 61 are arranged on the other side of the clamping claw 6 and are positioned at two symmetrical ends of the clamping claw 6. One end of the clamping arm 5 is a spline shaft 51, and the other end is connected with the clamping claw 6; as can be seen from fig. 4, the left side view of one end of the clamping arm 5 connected to the clamping jaw 6 is shown in fig. 11, two opposite sides of the end are arranged in parallel, the other two sides are symmetrical circular arcs 91, the size of the circular arc 91 is matched with the size of the second groove 9, and the width of the circular arc 91 is shorter than the width of the second groove 9, so that the clamping arm 5 can be adjusted in a sliding manner relative to the second groove 9. When the clamping claw 6 is assembled with the clamping arm 5, the position of one end of the clamping arm 5, which is inserted into the second groove 9 in the clamping claw 6, is adjusted according to the required clamping station, and the clamping arm is inserted into the bottom of the clamping claw and then fastened.
As can be seen from fig. 12, for the installation structure of the clamping arm 5 and the clamping jaw 6, the position of the end of the clamping arm 5 inserted into the second groove 9 of the clamping jaw 6 is adjusted according to the required clamping position, and after the clamping arm 5 is inserted to abut against the bottom of the clamping jaw 6, the fastening device is tightened, and the fastening device is a screw 81.
Claims (10)
1. The utility model provides a connecting rod positioning fixture with adjustable, its includes binding clasp body (1), output rod (2), link mechanism (3) and clamping device (4), output rod (2) can be along the axial and do telescopic movement, drive clamping device (4) through link mechanism (3) and do and loosen and press from both sides tight action, its characterized in that, clamping device (4) include: the clamping mechanism comprises a clamping arm (5) and a clamping claw (6), wherein a connecting rod (31) of the connecting rod mechanism (3) is provided with a first groove (7), one end of the clamping arm (5) can be inserted into the first groove (7) in a matching mode, the insertion angle of the clamping arm can be adjusted in a rotating mode, and a fixing device (8) is arranged to prevent the clamping arm (5) from moving; the clamping claw (6) is provided with a second groove (9), the other end of the clamping arm (5) can be inserted into the second groove (9) in a matching mode, the width of the clamping arm allows the clamping arm to be adjusted in a transverse sliding mode, and a fastening device (10) is arranged to prevent the clamping claw (6) from moving.
2. An adjustable connecting rod positioning clamp according to claim 1, characterized in that said first recess (7) is a cylindrical recess; correspondingly, one end of the clamping arm (5) is matched with the columnar groove into a columnar shape.
3. The adjustable connecting rod positioning fixture of claim 2, wherein the side surface of the cylindrical groove can be a plurality of edges, and the edges are symmetrically distributed; the grooves can also be smooth strip-shaped grooves which are symmetrically distributed; correspondingly, one end of the clamping arm (5) is matched with the columnar groove, and the outer surface of the clamping arm is provided with a plurality of symmetrically distributed edges or a plurality of symmetrically distributed smooth strip-shaped bulges.
4. An adjustable connecting rod positioning fixture as claimed in claim 3, wherein said cylindrical recess is selected from the group consisting of square, triangular, prismatic and splined grooves (7A); the key groove of the spline groove (7A) can be provided with a plurality of ridges or smooth strip grooves; correspondingly, one end of the clamping arm (5) is matched with the columnar groove and is a square column, a triangular column, a prism and a spline shaft (51).
5. An adjustable connecting rod positioning clamp according to claim 4, wherein the cylindrical recess is a spline groove (7A); the key groove of the spline groove (7A) is provided with a plurality of ridges; correspondingly, one end of the clamping arm is provided with a spline shaft (51), and a spline groove of the spline shaft is provided with a plurality of ridges.
6. An adjustable connecting rod positioning clamp as claimed in claim 1, wherein said fixing means comprises a screw hole (82), a screw (81) and an annular groove (83); the screw hole (82) is arranged at one side of the first groove (7), and the annular groove (83) is arranged at one end of the clamping arm (5); the screw (81) can be embedded into the annular groove (83) of the clamping arm (5) through the screw hole (82) and fixes the front position and the rear position of the clamping arm (5).
7. An adjustable connecting rod positioning clamp according to claim 1, characterized in that said second recess (9) is a cylindrical recess; correspondingly, the other end of the clamping arm (5) is matched with the columnar groove to be columnar.
8. The adjustable connecting rod positioning clamp of claim 7, wherein two sides of the cross section of the cylindrical groove are arranged in parallel, and the other two sides of the cross section of the cylindrical groove are or are not arranged in parallel; correspondingly, two sides of the clamping arm (5) are arranged in parallel, and the sides on the other two sides are arranged in parallel or not.
9. The adjustable connecting rod positioning clamp according to claim 8, wherein the other two sides of the cylindrical groove are circular arcs (91), and the two circular arcs (91) are symmetrically arranged; correspondingly, the edges of the other two sides of the clamping arm (5) are symmetrically arranged circular arcs (91).
10. The adjustable connecting rod positioning clamp as claimed in claim 1, wherein the clamping jaw (6) is further provided with a plurality of anti-loosening gaskets (61), the anti-loosening gaskets (61) are symmetrically arranged on the clamping jaw (6), and the surface of each anti-loosening gasket (61) is provided with grains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920818165.8U CN210256187U (en) | 2019-06-03 | 2019-06-03 | Adjustable connecting rod positioning clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920818165.8U CN210256187U (en) | 2019-06-03 | 2019-06-03 | Adjustable connecting rod positioning clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210256187U true CN210256187U (en) | 2020-04-07 |
Family
ID=70040160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920818165.8U Active CN210256187U (en) | 2019-06-03 | 2019-06-03 | Adjustable connecting rod positioning clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210256187U (en) |
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2019
- 2019-06-03 CN CN201920818165.8U patent/CN210256187U/en active Active
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