CN209831383U - Positioning and pressing mechanism for workpiece expansion pin - Google Patents
Positioning and pressing mechanism for workpiece expansion pin Download PDFInfo
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- CN209831383U CN209831383U CN201920139485.0U CN201920139485U CN209831383U CN 209831383 U CN209831383 U CN 209831383U CN 201920139485 U CN201920139485 U CN 201920139485U CN 209831383 U CN209831383 U CN 209831383U
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Abstract
The utility model relates to the field of machining, in particular to a workpiece expansion pin positioning and pressing mechanism, which comprises a positioning structure, a driving piece and an expansion connecting piece; the driving piece and the expansion piece are both arranged in a positioning structure, and the positioning structure is provided with an opening; the driving piece comprises a connecting column and a connecting piece wrapped outside the connecting column, a penetrating T-shaped chute is arranged on the connecting piece, and a sliding block matched with the T-shaped chute is arranged on the expansion connecting piece; the matching surface of the driving piece and the expansion piece is an inclined plane, and the outer diameter of the inclined plane is gradually increased from top to bottom. The workpiece expansion pin positioning and pressing mechanism can clamp a workpiece without a gap, so that the workpiece cannot fall off in the moving process. Because the expansion joint part retracts when the workpiece is placed and taken, the problem that the workpiece is difficult to take and place due to the fact that the gap between the workpiece and the expansion joint part is too small can be solved.
Description
Technical Field
The utility model relates to the field of machining, especially a work piece round pin location hold-down mechanism that expands.
Background
In the field of tooling, the structural form of a positioning mechanism is generally designed according to the shape of a workpiece so as to meet the positioning requirement of the workpiece.
The workpiece is required to be pressed when being moved, otherwise, the workpiece is easy to fall off in the moving process. The existing cylindrical workpiece is usually manually placed on a positioning table when moved, the cylindrical workpiece is fixed through the outer diameter of the positioning table, then the whole positioning table is moved to a required position and then the workpiece is manually taken out, and because the positioning table is likely to turn over during the moving process, the workpiece is easy to fall off if the workpiece cannot be in close contact with the positioning table. However, in the process of compressing a cylindrical workpiece, the domestic tool clamp is in order to conveniently place the cylindrical workpiece into or take the cylindrical workpiece out, so that a gap is reserved between the clamping structure and the workpiece, and the phenomenon of falling off can occur in the moving process due to the existence of the gap. If no gap is left, it is difficult to put and take out the work.
SUMMERY OF THE UTILITY MODEL
The invention of the utility model aims to: the workpiece expansion pin positioning and pressing mechanism is provided for solving the problems that in the prior art, a workpiece falls off due to an overlarge gap between the workpiece and a clamping mechanism or the workpiece is difficult to take and place due to an undersize gap between the clamping mechanism and the workpiece.
In order to realize the purpose, the utility model discloses a technical scheme be:
a workpiece expansion pin positioning and pressing mechanism comprises a positioning structure, a driving piece and an expansion joint piece; the driving piece and the expansion piece are both arranged in the positioning structure, and the positioning structure is provided with an opening; the driving piece comprises a connecting column and a connecting piece wrapped outside the connecting column, a penetrating T-shaped or L-shaped sliding groove is formed in the connecting piece, and a sliding block matched with the T-shaped sliding groove is arranged on the expansion connecting piece; the matching surface of the driving piece and the expansion piece is an inclined surface which is not parallel or perpendicular to the motion direction.
As a preferred scheme of the utility model, the workpiece expansion pin positioning and pressing mechanism further comprises a first base and a cylinder; the positioning structure is arranged on the first base, and the air cylinder is arranged on the first base; through holes are formed in the middle of the first base and the positioning structure; the expansion connecting piece further comprises an expansion connecting block connected with the sliding block, and the expansion connecting block penetrates through the opening. The positioning structure is arranged on the first base, and then the driving piece is driven by the cylinder to move up and down, so that the expansion joint piece is expanded, and the clamping function of the workpiece is realized.
As the utility model discloses a preferred scheme, location structure includes first setting element and second setting element, first setting element with the round platform structure is constituteed to the second setting element, first setting element is installed on the first base. The positioning structure is designed into a structure of a circular truncated cone, and the workpiece can be positioned only by being sleeved outside the second positioning part.
As the preferred scheme of the utility model, evenly be equipped with four trompils along the circumferencial direction on the location structure. Force is applied to the workpiece in four directions, so that the workpiece can be better clamped; the workpiece expansion pin positioning and pressing mechanism comprises four expansion connecting pieces, and the expansion connecting blocks correspond to the openings one to one. The four expansion connecting blocks are used for uniformly providing clamping force for the workpiece, so that the workpiece is not easy to slide.
As the utility model discloses a preferred scheme, work piece round pin location hold-down mechanism that expands still includes the second base, first base with the second base is the L type, first base with the second base passes through threaded connection. The first base and the second base are connected, and then the first base is installed at a position needing to be installed.
As the preferred scheme of the utility model, location structure's top is equipped with the mounting hole.
As the preferred scheme of the utility model, work piece round pin location hold-down mechanism that expands still includes the shrouding, the shrouding pass through the screw with location structure connects. A sealing plate is arranged at the top of the workpiece expanding pin positioning and pressing mechanism, and impurities such as dust can be placed into the T-shaped sliding groove to influence the movement of the driving piece.
As the utility model discloses a preferred scheme, work piece round pin location hold-down mechanism that expands still includes the sensor, the structural screw hole and the response hole that is equipped with of setting element, the sensor passes through the screw hole install in the location structure. Install the sensor in location structure through the screw hole, then survey the work piece back through the response hole, the cylinder is moving to resources are saved.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that: through the cooperation of driving piece and location structure and expanded joint spare, put into location structure with the work piece, because the fitting surface between coupling mechanism and the expanded joint spare is the inclined plane to the external diameter on inclined plane is from last down crescent, therefore along with the driving piece upward movement, thereby the expanded joint spare outwards expands realizes the zero clearance with the work piece and compresses tightly, removes the back that targets in place when the work piece, with the driving piece downstream, the expanded joint spare withdrawal, thereby light takes out the work piece. The workpiece expansion pin positioning and pressing mechanism can clamp a workpiece without a gap, so that the workpiece cannot fall off in the moving process. Because the expansion joint part retracts when the workpiece is placed and taken, the problem that the workpiece is difficult to take and place due to the fact that the gap between the workpiece and the expansion joint part is too small can be solved.
Drawings
Fig. 1 is a schematic structural view of a workpiece expansion pin positioning and pressing mechanism provided by the present invention;
fig. 2 is a schematic view of a part of the structure of the workpiece expansion pin positioning and pressing mechanism provided by the present invention;
FIG. 3 is a sectional view of the workpiece expanding pin positioning and pressing mechanism provided by the present invention;
fig. 4 is a schematic structural diagram of a positioning structure provided by the present invention;
fig. 5 is a schematic structural diagram of a driving member provided by the present invention;
fig. 6 is a top view of the driving member provided by the present invention;
fig. 7 is a schematic structural diagram of an expansion joint provided by the present invention.
The labels in the figure are: 1-a first base, 2-a positioning structure, 21-a first positioning piece, 22-a second positioning piece, 23-an opening, 24-a mounting hole, 25-a threaded hole, 26-a sensing hole, 3-a driving piece, 31-a connecting column, 32-a connecting piece, 321-a T-shaped sliding groove, 4-an expansion piece, 41-a T-shaped sliding block, 42-an expansion block, 5-an air cylinder, 6-a second base, 7-a sealing plate and 8-a workpiece.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 3, the present application provides a workpiece 8 positioning and pressing mechanism, which includes a first base 1, a positioning structure 2, a driving member 3, an expansion joint 4, a cylinder 5, a sealing plate 7, and a second base 6. The positioning structure 2 is mounted on the first base 1, the driving member 3 and the expansion member 4 are both mounted in the positioning structure 2, and the positioning structure 2 and the driving member 3 are movably connected through a T-shaped or L-shaped sliding groove 321; the cylinder 5 is mounted on the first base 1.
As shown in fig. 4, the positioning structure 2 includes a first positioning element 21 and a second positioning element 22, the first positioning element 21 and the second positioning element 22 form a circular truncated cone structure, and the first positioning element 21 is installed on the first base 1. The top of the first positioning member 21 is provided with a mounting hole 24, and the closing plate 7 is fixedly connected with the positioning structure 2 through a screw or a bolt. The workpiece 8 positioning and pressing mechanism further comprises a sensor, a threaded hole 25 and an induction hole 26 are formed in the positioning piece structure, and the sensor is installed in the positioning structure 2 through the threaded hole 25. In order to enable an automated function, a sensor is mounted in the positioning device via a threaded bore 25, which detects the workpiece 8 via a sensor bore 26 in the positioning structure 2.
The middle of the first base 1 and the positioning structure 2 is provided with a through hole, and a piston of the cylinder 5 can penetrate through the through hole. As shown in fig. 5 and 6, the driving member 3 includes a connecting column 31 and a connecting member 32 wrapped outside the connecting column 31, the connecting member 32 is circumferentially disposed along the connecting column 31, four T-shaped sliding grooves 321 are disposed on the connecting member 32, the diameter of the connecting column 31 gradually increases from top to bottom, and the T-shaped sliding grooves 321 are inclined T-shaped sliding grooves 321.
As shown in fig. 7, the expansion piece 4 includes a T-shaped slider 41 and an expansion block 42 connected to each other, the T-shaped slider 41 is installed in the T-shaped sliding groove 321, and the expansion block 42 passes through the opening 23. The workpiece 8 positioning and pressing mechanism comprises four expansion connecting pieces 4, a T-shaped sliding block 41 of each expansion connecting piece 4 corresponds to a T-shaped sliding groove 321 of the driving piece 3, and four open holes 23 are formed in the positioning structure 2. Each expansion piece 4 comprises a T-shaped or L-shaped sliding block 41 and an expansion block 42 which are connected with each other, the T-shaped sliding block 41 is installed in the T-shaped sliding groove 321, and the expansion block 42 penetrates through the opening 23. And the distance between the bottom surfaces of the two expansion blocks 42 is gradually increased from top to bottom.
The workpiece 8 positioning and pressing mechanism further comprises a second base 6, the first base 1 and the second base 6 are both L-shaped, and the first base 1 is connected with the second base 6 through threads. The expansion piece 4 comprises a T-shaped sliding block 41 and an expansion block 42 which are connected with each other, the T-shaped sliding block 41 is installed in the T-shaped sliding groove 321, and the expansion block 42 penetrates through the opening 23.
The application needs the multi-cylindrical workpiece 8 to be positioned and compressed and then the workpiece 8 is processed. During the use, at first place work piece 8 on positioning mechanism, the boss department that has just been constituteed at first setting element 21 and second setting element 22 to the bottom of work piece 8 realizes fixing a position, detects through the sensor that there is work piece 8 back cylinder 5 to ventilate on the location structure 2, and the piston of cylinder 5 drives driving piece 3 upward movement, realizes driving piece 3 and the relative motion of bloated joint 4 through T type spout 321 and T type slider 41. Because the diameter of the connecting column 31 of the driving piece 3 is gradually increased from top to bottom, the driving piece 3 drives the expansion piece 4 to expand outwards, so that the expansion block 42 of the expansion piece 4 compresses the workpiece 8 from the inner wall of the workpiece 8, and the workpiece 8 cannot shake.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A workpiece expansion pin positioning and pressing mechanism is characterized by comprising a positioning structure (2), a driving piece (3) and an expansion piece (4); the driving piece (3) and the expansion piece (4) are both arranged in the positioning structure (2), and an opening (23) is formed in the positioning structure (2); the driving piece (3) comprises a connecting column (31) and a connecting piece (32) wrapped outside the connecting column (31), a penetrating T-shaped sliding groove (321) is formed in the connecting piece (32), and a sliding block (41) matched with the T-shaped or L-shaped sliding groove (321) is arranged on the expansion piece (4); the matching surface of the driving piece (3) and the expansion piece (4) is an inclined plane, and the inclined plane is not parallel to the motion direction and is not vertical to the motion direction.
2. The workpiece expansion pin positioning and pressing mechanism according to claim 1, further comprising a first base (1) and a cylinder (5); the positioning structure (2) is arranged on the first base (1), and the air cylinder (5) is arranged on the first base (1); through holes are formed in the middle of the first base (1) and the positioning structure (2); the expansion joint piece (4) further comprises an expansion joint block (42) connected with the sliding block (41), and the expansion joint block (42) penetrates through the opening (23).
3. The workpiece expansion pin positioning and pressing mechanism according to claim 2, wherein the positioning structure (2) comprises a first positioning element (21) and a second positioning element (22), the first positioning element (21) and the second positioning element (22) form a circular truncated cone structure, and the first positioning element (21) is mounted on the first base (1).
4. The workpiece expansion pin positioning and pressing mechanism as recited in claim 2, characterized in that four openings (23) are uniformly arranged on the positioning structure (2) along the circumferential direction; the workpiece expansion pin positioning and pressing mechanism comprises four expansion connecting pieces (4), and the expansion connecting blocks (42) correspond to the open holes (23) one by one.
5. The workpiece expansion pin positioning and pressing mechanism according to claim 2, further comprising a second base (6), wherein the first base (1) and the second base (6) are L-shaped, and the first base (1) is in threaded connection with the second base (6).
6. The workpiece expansion pin positioning and pressing mechanism as recited in claim 1, characterized in that the top of the positioning structure (2) is provided with a mounting hole (24).
7. The workpiece expansion pin positioning and pressing mechanism according to claim 6, further comprising a sealing plate (7), wherein the sealing plate (7) is connected with the positioning structure (2) through a screw.
8. The workpiece expansion pin positioning and pressing mechanism according to claim 1, further comprising a sensor, wherein the positioning structure (2) is provided with a threaded hole (25) and a sensing hole (26), and the sensor is mounted in the positioning structure (2) through the threaded hole (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920139485.0U CN209831383U (en) | 2019-01-25 | 2019-01-25 | Positioning and pressing mechanism for workpiece expansion pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920139485.0U CN209831383U (en) | 2019-01-25 | 2019-01-25 | Positioning and pressing mechanism for workpiece expansion pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209831383U true CN209831383U (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920139485.0U Active CN209831383U (en) | 2019-01-25 | 2019-01-25 | Positioning and pressing mechanism for workpiece expansion pin |
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| CN (1) | CN209831383U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113953751A (en) * | 2021-11-17 | 2022-01-21 | 浙江正裕工业股份有限公司 | Positioning device |
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2019
- 2019-01-25 CN CN201920139485.0U patent/CN209831383U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113953751A (en) * | 2021-11-17 | 2022-01-21 | 浙江正裕工业股份有限公司 | Positioning device |
| CN113953751B (en) * | 2021-11-17 | 2024-02-02 | 浙江正裕工业股份有限公司 | Positioning device |
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