CN222386446U

CN222386446U - Just, get formula positioning mechanism

Info

Publication number: CN222386446U
Application number: CN202421126946.8U
Authority: CN
Inventors: 沈勇
Original assignee: Hubei Minshengli Precision Industry Technology Co ltd
Current assignee: Hubei Minshengli Precision Industry Technology Co ltd
Priority date: 2024-05-21
Filing date: 2024-05-21
Publication date: 2025-01-24
Anticipated expiration: 2034-05-21

Abstract

The utility model provides a convenient-to-take type positioning mechanism which comprises a positioning seat and a positioning pin vertically connected with the positioning seat, wherein a lifting hole is vertically formed in the positioning seat, the outer wall of the positioning pin is movably attached to the inner wall of the lifting hole, the positioning seat comprises a fixing part and a base part connected to the bottom of the fixing part, the lifting hole is positioned on the fixing part, a yielding opening is horizontally formed in the base part and communicated with the lifting hole, a lifting mechanism for lifting the positioning pin is arranged in the yielding opening, and the lifting mechanism can control the top of the positioning pin to be higher than the fixing part or equal to the top of the fixing part. The convenient-to-take type positioning mechanism provided by the utility model has small operation difficulty.

Description

Just, get formula positioning mechanism

Technical Field

The utility model belongs to the technical field of tool clamps, and relates to a convenient-to-take type positioning mechanism.

Background

The fixture is a technological device for fast fastening workpiece during machining to maintain proper relative positions of machine tool, cutter and workpiece. That is to say, the fixture is an indispensable part for machining, and the fixture technology is developing towards high precision, high efficiency, module, combination, versatility and economy under the drive of the development of the machine tool technology towards high speed, high efficiency, precision, compound, intelligent and environment-friendly directions.

At present, in the production process of automobile parts, a large number of tool fixtures are used for fixing and positioning the parts, and then welding, polishing, grinding and other operations are performed after the fixing and positioning. When the parts are actually fixed, the parts (provided with pre-openings matched with the positioning pins) are sleeved on the positioning pins on the positioning seat, and then the parts are pressed on the positioning seat from top to bottom by the rotary pressing cylinders and the like, so that the positions of the parts can be fixed. Because the requirements of part parts are higher, the position stability of the parts is higher, and the pre-perforated holes and the positioning pins are tightly matched at the moment, so that the parts can be ensured to have sufficient position stability in the horizontal direction, but the parts are required to be taken down from the positioning pins with larger force, and the operation difficulty is larger.

Disclosure of utility model

The utility model aims to provide a convenient-to-take type positioning mechanism, and aims to solve the problem of high operation difficulty.

In order to solve the technical problems, the utility model provides a convenient-to-take positioning mechanism, which comprises a positioning seat and a positioning pin vertically connected with the positioning seat, wherein a lifting hole is vertically formed in the positioning seat, and the outer wall of the positioning pin is movably attached to the inner wall of the lifting hole;

The positioning seat comprises a fixing part and a base part connected to the bottom of the fixing part, the lifting hole is positioned on the fixing part, a yielding port is horizontally formed in the base part and communicated with the lifting hole, a lifting mechanism for lifting the positioning pin is arranged in the yielding port, and the lifting mechanism can control the top of the positioning pin to be higher than the fixing part or equal to the top of the fixing part.

The utility model is further characterized in that the side wall of the positioning pin is vertically provided with an anti-rotation part, the fixed part is provided with an anti-rotation groove which is movably matched with the anti-rotation part, and when the positioning pin is at the highest height, the top of the anti-rotation part is lower than the top of the fixed part.

The utility model further provides that two anti-rotation parts are arranged and symmetrically distributed on two sides of the positioning pin.

The lifting mechanism further comprises a first hinge arm and a second hinge arm, wherein the top of the first hinge arm is hinged with the bottom of the locating pin, the bottom of the second hinge arm is hinged with the bottom of the abdication port, and the bottom of the first hinge arm is hinged with the top of the second hinge arm;

The lifting mechanism comprises a driving piece which is horizontally movably arranged at the bottom of the yielding port, the driving piece is externally connected with a driving mechanism which is used for driving the driving piece to horizontally move, the top of the driving piece, which is close to one end of the first articulated arm, is vertically provided with a bending part, the top of the bending part is articulated with a third articulated arm, and the free end of the third articulated arm is articulated with the articulated position of the first articulated arm and the second articulated arm.

The utility model is further characterized in that two first hinging seats are arranged at the bottom of the positioning pin, two second hinging seats are arranged on the base part, the first hinging arms are U-shaped with downward openings, the second hinging arms are convex, the tops of the first hinging arms are positioned between the two first hinging seats and hinged with the two first hinging seats, the bottoms of the second hinging arms are positioned between the two second hinging seats and hinged with the two second hinging seats, the tops of the second hinging arms are positioned in the openings of the first hinging arms, hinging rods are arranged horizontally penetrating through the first hinging arms and the second hinging arms, and the free ends of the third hinging arms, the first hinging arms and the second hinging arms are all in rotary connection with the hinging rods.

The utility model further provides that two third articulated arms are arranged, the two third articulated arms are connected to two ends of the articulated rod, the first articulated arm and the second articulated arm are both positioned between the two third articulated arms, when the locating pin is at the highest height, the first articulated arm and the second articulated arm are both in a vertical state, and the third articulated arm is in a horizontal state.

The utility model further provides that the bottom of the yielding port is vertically provided with a termination part, one side, close to the driving piece, of the first hinge arm and one side, close to the driving piece, of the second hinge arm are respectively abutted against the termination part, and the bottom of the termination part is lower than the bottom of the positioning pin.

The utility model further provides that the bottom of the locating pin is horizontally provided with a termination plate, the top of the termination plate is abutted against the top of the abdication port, and an elastic piece which is continuously in an extension state is arranged between the bottom of the termination plate and the bottom of the abdication port.

The utility model is further characterized in that a guide piece with a U-shaped longitudinal section with a downward opening is arranged at the bottom of the abdication opening, the longitudinal section of the opening of the guide piece is rectangular, and the driving piece is movably attached to the abdication opening and the inner wall of the guide piece;

The free end of the driving piece is provided with a linkage arm vertical to the driving piece, the linkage arm is positioned at the outer side of the abdication port, the free end of the linkage arm is horizontally provided with a cylindrical linkage cylinder, the linkage cylinder is provided with a plurality of positioning bolts in a threaded connection manner, and each positioning bolt penetrates through the linkage cylinder;

The automatic control device is characterized by further comprising a power rod, wherein the power rod penetrates through the linkage cylinder, the positioning bolt is abutted against the outer wall of the power rod, and a driving cylinder for driving the power rod to horizontally move is externally connected with the power rod.

The utility model is further arranged that a plurality of linkage cylinders are sleeved on the power rod.

Compared with the prior art, the utility model provides a convenient-to-take positioning mechanism, when a part is positioned, the top of a positioning pin is higher than the top of a fixing part, then a pre-opening on the part is sleeved on the positioning pin, the bottom of the part is abutted against the top of the fixing part, then a pressing cylinder or an air cylinder is rotated to press the part from top to bottom, so that different parts can be fixed, and finally the operations of welding, polishing and the like are performed, and a lifting mechanism in a yielding opening lowers the positioning pin after the processing is completed, and the top of the positioning pin is lower than the top of the fixing part or is equal to the top of the fixing part, so that the positioning pin is separated from the part, the operation of taking down the part can be simply performed, and the operation convenience is high.

Drawings

FIG. 1 is a schematic view of an embodiment of a portable positioning mechanism according to the present utility model;

FIG. 2 is a cross-sectional view of one embodiment of a ready-to-use positioning mechanism of the present utility model;

FIG. 3 is an enlarged view of portion A of FIG. 2;

Fig. 4 is a schematic view of an embodiment of a lifting mechanism in a conveniently-fetched positioning mechanism according to the present utility model.

Wherein, 1, a positioning seat; 1a, a fixing part, 1b, a base part, 2, a locating pin, 3, a lifting hole, 4, a yielding port, 5, an anti-rotation part, 6, a first hinge arm, 7, a second hinge arm, 8, a driving piece, 9, a bending part, 10, a third hinge arm, 11, a first hinge seat, 12, a second hinge seat, 13, a hinge rod, 14, a termination part, 15, a termination plate, 16, an elastic piece, 17, a guide piece, 18, a linkage arm, 19, a linkage cylinder, 20 and a locating bolt.

Detailed Description

The utility model provides a convenient positioning mechanism which is further described in detail below with reference to the accompanying drawings and the specific embodiments. The advantages and features of the present utility model will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the utility model. The same or similar reference numbers in the drawings refer to the same or similar parts.

The convenient-to-take positioning mechanism comprises a positioning seat 1 and a positioning pin 2 vertically connected with the positioning seat 1, wherein a lifting hole 3 is vertically formed in the positioning seat 1, and the outer wall of the positioning pin 2 is movably attached to the inner wall of the lifting hole 3;

the positioning seat 1 comprises a fixing portion 1a and a base portion 1b connected to the bottom of the fixing portion 1a, the lifting hole 3 is located on the fixing portion 1a, a yielding opening 4 is horizontally formed in the base portion 1b, the yielding opening 4 is communicated with the lifting hole 3, a lifting mechanism for lifting the positioning pin 2 is arranged in the yielding opening 4, and the lifting mechanism can control the top of the positioning pin 2 to be higher than the fixing portion 1a or equal to the top of the fixing portion 1 a.

The side wall of the locating pin 2 is vertically provided with an anti-rotation part 5, the fixing part 1a is provided with an anti-rotation groove which is movably matched with the anti-rotation part 5, and when the locating pin 2 is at the highest height, the top of the anti-rotation part 5 is lower than the top of the fixing part 1 a.

The anti-rotation parts 5 are arranged in two, and the two anti-rotation parts 5 are symmetrically distributed on two sides of the positioning pin 2.

The lifting mechanism comprises a first hinge arm 6 and a second hinge arm 7, wherein the top of the first hinge arm 6 is hinged with the bottom of the positioning pin 2, the bottom of the second hinge arm 7 is hinged with the bottom of the yielding port 4, and the bottom of the first hinge arm 6 is hinged with the top of the second hinge arm 7;

The lifting mechanism comprises a driving piece 8 which is horizontally movably arranged at the bottom of the yielding port 4, the driving piece 8 is externally connected with a driving mechanism which is used for driving the driving piece 8 to horizontally move, the top of the driving piece 8, which is close to one end of the first articulated arm 6, is vertically provided with a bending part 9, the top of the bending part 9 is hinged with a third articulated arm 10, and the free end of the third articulated arm 10 is hinged with the hinge position of the first articulated arm 6 and the second articulated arm 7.

The bottom of locating pin 2 is provided with two first articulated seats 11, be provided with two second articulated seats 12 on the base portion 1b, first articulated arm 6 is the decurrent U font of opening, second articulated arm 7 is the protruding font, the top of first articulated arm 6 is located two between first articulated seats 11, and with two first articulated seats 11 articulated, the bottom of second articulated arm 7 is located two between second articulated seats 12, and with two second articulated seats 12 articulated, the top of second articulated arm 7 is located in the opening of first articulated arm 6, horizontal movement passes first articulated arm 6 with second articulated arm 7 is provided with articulated lever 13, the free end of third articulated arm 10 first articulated arm 6 and second articulated arm 7 all with articulated lever 13 rotates to be connected.

The third hinge arms 10 are provided with two, two third hinge arms 10 are connected to two ends of the hinge rod 13, the first hinge arm 6 and the second hinge arm 7 are located between the two third hinge arms 10, when the positioning pin 2 is at the highest height, the first hinge arm 6 and the second hinge arm 7 are in a vertical state, and the third hinge arm 10 is in a horizontal state.

The bottom of the yielding port 4 is vertically provided with a termination portion 14, one side, close to the driving piece 8, of the first hinge arm 6 and the second hinge arm 7 is abutted against the termination portion 14, and the bottom of the termination portion 14 is lower than the bottom of the positioning pin 2.

The bottom level of locating pin 2 is provided with termination board 15, the top of termination board 15 conflict in the top of letting mouth 4, the bottom of termination board 15 with be provided with between the bottom of letting mouth 4 and be in the elastic component 16 of extension state continuously.

The bottom of the abdication port 4 is provided with a guide piece 17 with a U-shaped longitudinal section with a downward opening, the longitudinal section of the opening of the guide piece 17 is rectangular, and the driving piece 8 is movably attached to the abdication port 4 and the inner wall of the guide piece 17;

the free end of the driving piece 8 is provided with a linkage arm 18 perpendicular to the driving piece 8, the linkage arm 18 is positioned at the outer side of the abdication port 4, the free end of the linkage arm 18 is horizontally provided with a cylindrical linkage cylinder 19, the linkage cylinder 19 is provided with a plurality of positioning bolts 20 in a threaded connection manner, and each positioning bolt 20 penetrates through the linkage cylinder 19;

The device also comprises a power rod, wherein the power rod passes through the linkage cylinder 19, the positioning bolt 20 is abutted against the outer wall of the power rod, and a driving cylinder for driving the power rod to horizontally move is externally connected with the power rod. The power rod is sleeved with a plurality of linkage cylinders 19.

The utility model provides a convenient-to-take positioning mechanism, which is characterized in that when a part is positioned, the top of a positioning pin 2 is higher than the top of a fixing part 1a, then a pre-opening on the part is sleeved on the positioning pin 2, the bottom of the part is abutted against the top of the fixing part 1a, then a pressing cylinder or an air cylinder is rotated from top to bottom to press the part, so that different parts can be fixed, and finally, operations such as welding, polishing and the like are performed, a lifting mechanism in a yielding opening 4 lowers the positioning pin 2 after the processing is completed, and the top of the positioning pin 2 is lower than the top of the fixing part 1a or is equal to the top of the fixing part 1a, so that the positioning pin 2 is separated from the part, the operation of taking down the part can be performed simply, and the operation convenience is high.

When the parts are sleeved on the positioning pin 2, the driving cylinder (preferably an air cylinder or an oil cylinder, etc.) drives the power rod to move, and simultaneously drives all the linkage cylinders 19 on one tool to move, wherein the shapes of the corresponding linkage arms 18 (namely, the shapes, the lengths, etc. of the different linkage arms 18 can be different) are designed according to the different parts in the actual use process, so that the power rod can be connected with a plurality of linkage cylinders 19, and simultaneously, a plurality of linkage arms 18 can be driven to move.

Under the driving action of the power rod, all the third articulated arms 10 pull the first articulated arms 6 and the second articulated arms 7 to be in a vertical state, the stop parts 14 can limit and support the first articulated arms 6 and the second articulated arms 7, and at the moment, parts can be directly sleeved on the positioning pins 2, wherein the peripheral edge of the top of the positioning pins 2 is preferably in a chamfer or round angle state, so that the sleeving is convenient.

After the machining is finished, the driving cylinder drives the power rod to move forwards, the power rod drives all the linkage cylinders 19 to move forwards, then the linkage cylinders 19, the linkage arms 18, the driving piece 8, the bending part 9 and the third hinge arm 10 are all movable, the first hinge arm 6 and the second hinge arm 7 are driven to rotate, the height of the locating pin 2 is lowered in the rotating process, and therefore the top of the locating pin 2 can be separated from the parts.

The locating pin 2 is in the lift in-process, and the anti-rotation portion 5 of its both sides has received the spacing of anti-rotation groove, consequently makes locating pin 2 can only vertically go up and down, can not take place to rotate, so makes first articulated arm 6, second articulated arm 7 and third articulated arm 10 can be stable move about, excellent in use effect.

After the parts are taken down, the driving rod drives all the driving pieces 8 to move back through the power rod, so that the first articulated arm 6 and the second articulated arm 7 are pulled to rotate through the third articulated arm 10, and meanwhile, the positioning pin 2 is lifted to the highest position until the final termination plate 15 is abutted against the top of the yielding port 4. Since both the first hinge arm 6 and the second hinge arm 7 are in a vertical state during use, the strength and the support stability of the positioning pin 2 can be ensured. Secondly, when the positioning pin 2 is lowered, the elastic piece 16 can also play an auxiliary role, so that the positioning pin 2 can smoothly descend.

The above description is only illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the appended claims.

Claims

1. The convenient-to-take positioning mechanism is characterized by comprising a positioning seat (1) and a positioning pin (2) vertically connected with the positioning seat (1), wherein a lifting hole (3) is vertically formed in the positioning seat (1), and the outer wall of the positioning pin (2) is movably attached to the inner wall of the lifting hole (3);

The positioning seat (1) comprises a fixing part (1 a) and a base part (1 b) connected to the bottom of the fixing part (1 a), the lifting hole (3) is formed in the fixing part (1 a), a yielding opening (4) is horizontally formed in the base part (1 b), the yielding opening (4) is communicated with the lifting hole (3), a lifting mechanism for lifting the positioning pin (2) is arranged in the yielding opening (4), and the lifting mechanism can control the top of the positioning pin (2) to be higher than the fixing part (1 a) or equal to the top of the fixing part (1 a).

2. The conveniently-taken positioning mechanism according to claim 1, wherein an anti-rotation part (5) is vertically arranged on the side wall of the positioning pin (2), an anti-rotation groove which is movably matched with the anti-rotation part (5) is formed in the fixed part (1 a), and when the positioning pin (2) is at the highest height, the top of the anti-rotation part (5) is lower than the top of the fixed part (1 a).

3. The easy-to-take positioning mechanism according to claim 2, wherein two rotation preventing parts (5) are provided, and the two rotation preventing parts (5) are symmetrically distributed on two sides of the positioning pin (2).

4. The easy-to-take positioning mechanism according to claim 1, wherein the lifting mechanism comprises a first articulated arm (6) and a second articulated arm (7), the top of the first articulated arm (6) is articulated with the bottom of the positioning pin (2), the bottom of the second articulated arm (7) is articulated with the bottom of the yielding port (4), and the bottom of the first articulated arm (6) is articulated with the top of the second articulated arm (7);

The lifting mechanism comprises a driving piece (8) which is horizontally movably arranged at the bottom of the yielding port (4), the driving piece (8) is externally connected with a driving mechanism which is used for driving the driving piece (8) to horizontally move, the driving piece (8) is close to the top of one end of the first articulated arm (6) and is vertically provided with a bending part (9), the top of the bending part (9) is hinged with a third articulated arm (10), and the free end of the third articulated arm (10) is hinged with the hinged position of the first articulated arm (6) and the second articulated arm (7).

5. The conveniently-taken positioning mechanism according to claim 4, wherein two first hinge bases (11) are arranged at the bottom of the positioning pin (2), two second hinge bases (12) are arranged on the base portion (1 b), the first hinge arms (6) are in a U-shaped structure with downward openings, the second hinge arms (7) are in a convex shape, the top of each first hinge arm (6) is located between the two first hinge bases (11) and hinged with the two first hinge bases (11), the bottom of each second hinge arm (7) is located between the two second hinge bases (12) and hinged with the two second hinge bases (12), the top of each second hinge arm (7) is located in an opening of each first hinge arm (6), hinge rods (13) are arranged on each second hinge arm (7) and horizontally movably penetrate through the first hinge arms (6), and the free ends of the third hinge arms (10) are connected with the first hinge arms (6) and the second hinge arms (7) in a hinged mode.

6. The easy-to-take positioning mechanism according to claim 5, wherein two third hinge arms (10) are provided, two third hinge arms (10) are connected to both ends of the hinge rod (13), the first hinge arm (6) and the second hinge arm (7) are both located between the two third hinge arms (10), when the positioning pin (2) is at the highest height, the first hinge arm (6) and the second hinge arm (7) are both in a vertical state, and the third hinge arm (10) is in a horizontal state.

7. The easy-to-take positioning mechanism according to claim 6, wherein a termination portion (14) is vertically arranged at the bottom of the yielding port (4), one side of the first hinge arm (6) and one side of the second hinge arm (7) close to the driving piece (8) are respectively abutted against the termination portion (14), and the bottom of the termination portion (14) is lower than the bottom of the positioning pin (2).

8. The easy-to-take positioning mechanism according to claim 7, wherein a termination plate (15) is horizontally arranged at the bottom of the positioning pin (2), the top of the termination plate (15) is abutted against the top of the yielding port (4), and an elastic piece (16) which is continuously in an elongation state is arranged between the bottom of the termination plate (15) and the bottom of the yielding port (4).

9. The convenient-to-take positioning mechanism according to claim 4, wherein a guide piece (17) with a U-shaped longitudinal section with a downward opening is arranged at the bottom of the yielding port (4), the longitudinal section of the opening of the guide piece (17) is rectangular, and the driving piece (8) is movably attached to the inner walls of the yielding port (4) and the guide piece (17);

The free end of the driving piece (8) is provided with a linkage arm (18) perpendicular to the driving piece (8), the linkage arm (18) is positioned at the outer side of the abdication port (4), the free end of the linkage arm (18) is horizontally provided with a cylindrical linkage cylinder (19), the linkage cylinder (19) is provided with a plurality of positioning bolts (20) in a threaded connection manner, and each positioning bolt (20) penetrates through the linkage cylinder (19);

The automatic control device is characterized by further comprising a power rod, wherein the power rod passes through the linkage cylinder (19), the positioning bolt (20) is abutted against the outer wall of the power rod, and the power rod is externally connected with a driving cylinder for driving the power rod to horizontally move.

10. A positioning mechanism according to claim 9, wherein said power lever is sleeved with a plurality of said interlocking cylinders (19).