CN111805142B

CN111805142B - Pressing mechanism with pressure head structure capable of being replaced quickly

Info

Publication number: CN111805142B
Application number: CN202010674370.9A
Authority: CN
Inventors: 黎福明; 李根兴
Original assignee: HP Pelzer Automotive Interior Systems Nanjing Co Ltd
Current assignee: HP Pelzer Automotive Interior Systems Nanjing Co Ltd
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-11-23
Anticipated expiration: 2040-07-14
Also published as: CN111805142A

Abstract

The invention discloses a pressing mechanism capable of quickly replacing a pressure head structure, and belongs to the technical field of processing of automotive upholstery. Mainly include the pendulum rod, depression bar and cylinder, the pendulum rod is including installation pole and hinge bar, the draw-in groove has been seted up to the one end of installation pole, the one end that the installation pole corresponds the draw-in groove is equipped with interlock portion, the draw-in groove includes narrow groove and wide groove, the side of installation pole still is equipped with the guide way, the guide way includes the guiding groove, helicla flute and spacing groove, the depression bar includes the body of rod, fixture block and first elastic component, the circular port has been seted up in the body of rod, elliptical aperture and cavity, be equipped with the lug on the lateral wall of circular port, the fixture block sets up in the elliptical aperture, the shape and the draw-in groove of fixture block correspond the same, the fixture block includes narrow body and wide body, its one end of wide body dorsad of fixture block is equipped with the disk body, the disk body sets up in the cavity, first elastic component is installed on the interior diapire of elliptical aperture. The pressing mechanism with the pressure head structure capable of being replaced quickly can be disassembled and assembled quickly, and production efficiency is improved.

Description

Pressing mechanism with pressure head structure capable of being replaced quickly

Technical Field

The invention relates to the technical field of processing of automotive interior parts, in particular to a pressing mechanism capable of quickly replacing a pressure head structure and used for positioning the automotive interior parts.

Background

In the process of processing the automotive interior part, a connecting piece needs to be welded on the automotive interior part, and in the process of welding, the automotive interior part needs to be positioned and fixed by a hold-down mechanism. The existing pressing mechanism is shown in the attached figure 1 of the specification and mainly comprises an air cylinder 400, a swing rod 500 and a pressing rod 600, wherein one end of the swing rod 500 is hinged to the air cylinder 400, the other end of the swing rod 500 and the pressing rod 600 are detachably mounted through bolts, and pressing head structures with different shapes are arranged at the other end of the pressing rod, so that the pressing rod in the pressing mechanism can be replaced according to actual needs; the mode of bolt fastening between pendulum rod 500 and the depression bar 600 among the hold-down mechanism of present can't realize quick dismouting, thereby change the depression bar 600 and delay time influences production efficiency.

There is a need to provide a new pressing mechanism with a quick-replaceable pressing head structure to solve the above problems.

Disclosure of Invention

The technical problems to be solved by the invention are as follows: the pressing mechanism with the pressure head structure capable of being replaced quickly is capable of being disassembled and assembled quickly according to actual requirements, replacement time is saved, and production efficiency is improved.

In order to solve the technical problems, the invention adopts the following technical scheme: a pressing mechanism capable of quickly replacing a pressure head structure comprises a swing rod, a pressure rod and a cylinder; the swing rod comprises an installation rod and a hinged rod, the installation rod is sleeved with a fixed pressing rod, the hinged rod is in transmission connection with an air cylinder, a clamping groove is formed in one end, back to the hinged rod, of the installation rod, an occlusion part is formed in one end, corresponding to the clamping groove, of the installation rod, the clamping groove comprises narrow grooves with small outer intervals and wide grooves with large inner intervals, guide grooves are further formed in the side face of the installation rod and comprise guide grooves, spiral grooves and limiting grooves which are sequentially distributed, the guide grooves are distributed along the length direction of the installation rod, the pressing rod comprises a rod body, a clamping block and a first elastic part, coaxial circular holes, elliptical holes and cavities are formed in the rod body, the circular holes are located at outward positions, protruding blocks corresponding to the guide grooves are further arranged on the side wall of the circular holes in the rod body, the clamping block is arranged in the elliptical holes, and the shape of the clamping block corresponds to and is the same as the clamping groove, the fixture block comprises a thin narrow body and a thick wide body arranged at one end of the narrow body, a disc body is arranged at one end, back to the wide body, of the fixture block, the disc body is rotatably arranged in the cavity, and the first elastic piece is arranged on the inner bottom wall of the elliptical hole.

Further, the mounting rod is of a cylindrical structure.

Furthermore, the limiting groove is positioned at the position of the guide groove which is deflected by 90 degrees around the central shaft of the mounting rod.

Furthermore, the pressure lever also comprises a second elastic part which is arranged in the cavity and positioned between the bottom of the cavity and the disc body.

Further, the second elastic piece is a rubber block.

Further, the circular hole is in clearance fit with the mounting rod.

Further, the minor axis length of the elliptical hole is the same as the diameter length of the circular hole.

Furthermore, a pressure head is arranged at the end part of the pressure rod.

Further, the first elastic member is a compression spring.

Furthermore, one end of the hinged rod is hinged to the piston rod of the cylinder, and the other end of the hinged rod is connected with the hinged seat mounted on the cylinder through the hinged connecting rod.

The beneficial technical effects of the invention are as follows: the invention relates to a pressing mechanism capable of quickly replacing a pressure head structure, which comprises a swing rod, a pressure rod and an air cylinder, wherein the pressure rod can be sleeved along a guide groove on the side surface of a mounting rod in the swing rod through a lug on the pressure rod, so that a clamping block in an elliptical hole of the pressure rod is inserted in a clamping groove at the end part of the mounting rod, namely an engagement part, when the pressure rod is locked, a rod body is rotated to drive the lug to rotate to a position limiting groove along a spiral groove, so that a short-axis side wall on the elliptical hole in the rod body abuts against the engagement part at the end part of the mounting rod, the engagement part cannot deform outwards under stress, the clamping block is limited in the clamping groove, the pressure rod can be quickly mounted on the swing rod, when the pressure rod is dismounted, only the rod body needs to be rotated, the long-axis side wall of the elliptical hole faces the engagement part, the engagement part can expand outwards under stress, the clamping block and the pressure rod are released, the quick dismounting of the pressure rod is realized, and the quick dismounting of the pressure rod can be realized, and the pressing mechanism capable of quickly replacing the pressure head structure can realize the quick dismounting according to actual requirements, the time for replacing the pressure rod is saved, and the production efficiency is improved.

Drawings

The invention is further illustrated by the following figures and examples.

In the figure: FIG. 1 is a schematic structural diagram of a conventional pressing mechanism;

FIG. 2 is a schematic view of a hold-down mechanism of the present invention with a quick-change ram configuration;

FIG. 3 is a schematic structural view of the swing link and the compression link in FIG. 2;

FIG. 4 is an exploded view of the structure of FIG. 3;

FIG. 5 is an enlarged view of region G of FIG. 4;

FIG. 6 is a cross-sectional view taken along the line A-A in FIG. 3;

FIG. 7 is a left side view of FIG. 3;

FIG. 8 is a cross-sectional view taken along line B-B of FIG. 7;

FIG. 9 is a cross-sectional view taken at the position C-C in FIG. 8;

FIG. 10 is a schematic view of the lever and the pressing rod of FIG. 8 after being locked;

FIG. 11 is a cross-sectional view taken at the position F-F in FIG. 10;

in the figure:

100. a swing rod; 11. mounting a rod; 111. a card slot; 1111. a narrow groove; 1112. a wide groove; 112. a guide groove; 1121. a guide groove; 1122. a helical groove; 1123. a limiting groove; 113. an engaging portion; 12. a hinged lever.

200. A pressure lever; 21. a rod body; 211. a circular hole; 212. an elliptical hole; 213. a cavity; 214. a bump; 22. a clamping block; 221. a narrow body; 222. a wide body; 23. a tray body; 24. a first elastic member; 25. a second elastic member.

300. And a cylinder.

400. A cylinder; 500. a swing rod; 600. a pressure lever.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 2, but hold-down mechanism of quick replacement pressure head structure, including cylinder 300, the pendulum rod 100 that articulates on cylinder 300 and the depression bar 200 of cover at the pendulum rod 100 other end, the piston rod motion through cylinder 300 drives the pendulum rod 100 swing during the use, and then drives the depression bar 200 swing of installing on pendulum rod 100, press the head (not shown in the figure) of keeping away from cylinder 300 one end on through depression bar 200 and support to press fixedly the material, in order to adapt to different shapes, the structural quilt supports and presses the material, can carry out quick assembly disassembly to depression bar 200 and change the depression bar 200 that has different pressure heads promptly.

Further, the swing link 100 includes a cylindrical mounting rod 11 and an articulated rod 12 disposed at one end of the mounting rod 11, one end of the articulated rod 12 is articulated on the piston rod of the cylinder 300, and the other end of the articulated rod 12 is connected to an articulated seat mounted on the cylinder 300 through an articulated connecting rod, so that when the piston rod of the cylinder 300 extends out, the swing link 100 can be driven to rotate clockwise in fig. 2, and when the piston rod of the cylinder 300 retracts, the swing link 100 can be driven to rotate counterclockwise to the position shown in fig. 2 again.

Referring to fig. 4, in the present embodiment, a clamping groove 111 is formed at an end of the mounting rod 11 facing away from the hinge rod 12, an engaging portion 113 is formed at an end of the mounting rod 11 corresponding to the clamping groove 111 through the clamping groove 111, and the clamping groove 111 includes a narrow groove 1111 having a small outer distance and a wide groove 1112 having a large inner distance; referring to fig. 5, the outer side surface of the mounting rod 11 is further provided with a guide groove 112, the guide groove 112 includes a guide groove 1121, a spiral groove 1122, and a limit groove 1123, which are connected in sequence, the guide groove 1121 is distributed along the length direction of the mounting rod 11, the limit groove 112 is located at a position where the guide groove 1121 is deflected by 90 ° around the central axis of the mounting rod 11, the limit groove 112 is biased toward the hinge rod 12, one end of the spiral groove 1122 is communicated with the guide groove 1121, and the other end of the spiral groove 1122 is communicated with the limit groove 1123.

In the present embodiment, the pressing rod 200 includes a rod 21, a latch 22, a first elastic member 24 and a second elastic member 25.

Referring to fig. 6, a circular hole 211, an elliptical hole 212 and a cavity 213 are sequentially formed in the rod body 21 and corresponding to the mounting rod 11, the circular hole 211 is located at an outward position and is in clearance fit with the mounting rod 11, a minor axis of the elliptical hole 212 is the same as a diameter of the circular hole 211, and a protrusion 214 corresponding to the guide groove 112 is fixedly formed on a side wall of the circular hole 211 in the rod body 21; the latch 22 is located in the elliptical hole 212, and the shape of the latch 22 corresponds to and is the same as that of the latch slot 111, so that the latch 22 also comprises a thin narrow body 221 and a thick wide body 222 arranged at one end of the narrow body 221, a disc body 23 is fixedly arranged at one end of the latch 22, which is opposite to the wide body 222, and the disc body 23 is rotatably arranged in the cavity 213; the first elastic member 24 is fixedly installed at the center of the inner bottom wall of the elliptical hole 212, in this embodiment, the first elastic member 24 is a compression spring, and in other embodiments not shown, the first elastic member 24 may also be other elastic members such as a spring plate; the second elastic member 25 is fixedly installed in the cavity 213 and located between the bottom of the cavity 213 and the tray 23, for the convenience of installation, the second elastic member 25 is a rubber block in this embodiment, in other embodiments not shown, the second elastic member 25 may be replaced by an elastic sheet or other elastic member, and the second elastic member 25 functions as: when the pressing rod 200 is not yet installed on the swinging rod 100, the second elastic member 25 can support and fix the disc 23, so as to prevent the fixture block 22 from randomly shaking to cause dislocation, which is not convenient to align with the clamping groove 111 on the installation rod 11.

The operation of the pressing mechanism with the quick-replaceable pressure head structure of the invention is described below with reference to the accompanying drawings:

referring to fig. 6, when the pressing rod 200 is installed, the protrusion 214 on the rod body 21 is aligned with the guide groove 1121 of the installation rod 11 in the swing rod 100 and is sleeved, so that the latch 22 in the pressing rod 200 is conveniently aligned with the slot 111 on the installation rod 11 to be inserted, and in the process that the protrusion 214 slides along the guide groove 1121, the latch 22 is finally guided to be inserted into the slot 111, as shown in fig. 8 and 9, since the major axis of the elliptical hole 212 in the rod body 21 is located on the same horizontal plane as the engaging portion 113 on the rod body 21, at this time, the side wall of the major axis of the elliptical hole 212 is far away from the installation rod 11, when the wide body 222 of the latch 22 enters the narrow groove 1111 position of the slot 111, the engaging portion 113 is forced to expand outward, allowing the wide body 222 of the latch 22 to finally move to the wide groove 1112 position of the slot 111, and finally, the engaging portion 113 is engaged with the latch 22, and then the rod body 21 is rotated to move the protrusion 214 along the spiral groove 1122 to the limiting groove 1123, since the latch 22 is inserted into the engaging portion 113, the latch 22 is rotatably connected to the rod 21, the relative position between the latch 22 and the rod 21 is not changed during the rotation of the rod 21, and finally the short-axis side wall of the elliptical hole 212 abuts against the engaging portion 113, and when the protrusion 214 moves to the position corresponding to the position-limiting groove 1123 along the spiral groove 1122, the protrusion 214 is released, and the rod 21 is pushed by the elastic restoring force of the first elastic member 24 to move in the direction away from the mounting rod 11, and finally the protrusion 214 moves and stays in the position-limiting groove 1123 (refer to fig. 10), and as shown in fig. 10, since the short-axis side wall of the elliptical hole 212 abuts against the engaging portion 113, the engaging portion 113 cannot expand outward to release the latch 22, and further the pressing rod 200 cannot fall off the swing rod 100.

When the pressing rod 200 needs to be disassembled and replaced, the pressing rod 200 is pushed towards the direction close to the swing rod 100 by force, the pressing rod 200 is rotated reversely, so that the bump 214 slides to the position of the guide groove 1121 along the spiral groove 1122, because the pressing rod 200 is in the state shown in fig. 8 at this time, and the engaging portion 113 no longer abuts against the short-axis side wall of the elliptical hole 212 with reference to fig. 9, when the pressing rod 200 is pulled towards the direction away from the swing rod 100 at this time, the wide body 222 of the fixture block 22 forces the engaging portion 113 to deform and expand outwards, so that the fixture block 22 is separated from the clamping groove 111, and finally the pressing rod 200 is disassembled from the swing rod 100 and then is installed on the swing rod 100 again.

The invention relates to a pressing mechanism capable of quickly replacing a pressure head structure, which comprises a swing rod 100, a pressure rod 200 and an air cylinder 300, wherein the pressure rod 200 can be sleeved in along a guide groove 1121 on the side surface of an installation rod 11 in the swing rod 100 through a lug 214 on the pressure rod 200, so that a clamping block 22 in an elliptical hole 212 of the pressure rod 200 is inserted in a clamping groove 111 at the end part of the installation rod 11, namely an engagement part 113, when the pressing rod is locked, a rod body 21 is rotated to drive the lug 214 to rotate to a position of a limiting groove 1123 along a spiral groove 1122, so that a short-axis side wall on the elliptical hole 212 in the rod body 21 is abutted against the engagement part 113 at the end part of the installation rod 11, the engagement part 113 cannot expand outwards through deformation, the clamping block 22 is limited in the clamping groove 111, the pressure rod 200 can be quickly installed on the swing rod 100, when the pressure rod 200 is disassembled, only the rod body 21 needs to rotate, the long-axis side wall of the elliptical hole 212 faces the engagement part 113, and further the pressing part 113 can expand outwards under stress, the clamping block 22 and the pressing rod 200 are released, so that the pressing rod 200 can be rapidly disassembled, and in summary, the pressing mechanism with the quick-replaceable pressing head structure can be rapidly disassembled and assembled according to actual requirements, so that the time for replacing the pressing rod 200 is saved, and the production efficiency is improved.

In light of the foregoing description of preferred embodiments in accordance with the invention, it is to be understood that numerous changes and modifications may be made by those skilled in the art without departing from the scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a but hold-down mechanism of quick replacement pressure head structure, includes pendulum rod (100), depression bar (200) and cylinder (300), its characterized in that: pendulum rod (100) including cup joint installation pole (11) of fixed depression bar (200) and articulated pole (12) of being connected with the cylinder transmission, draw-in groove (111) have been seted up to its one end of articulated pole (12) of installation pole (11) dorsad, the one end that installation pole (11) correspond draw-in groove (111) is formed with interlock portion (113), draw-in groove (111) are including leaning on outer less narrow groove (1111) of interval and leaning on the great wide groove (1112) of interior interval, the side of installation pole (11) still is equipped with guide way (112), guide way (112) are including guide groove (1121), spiral groove (1122) and spacing groove (1123) that distribute in proper order, guide groove (1121) distribute along the length direction of installation pole (11), depression bar (200) are including the body of rod (21), fixture block (22) and first elastic component (24), coaxial circular port (211) have been seted up in the body of rod (21), Elliptical hole (212) and cavity (213), circular hole (211) are located the position outwards, still be equipped with on the lateral wall of circular hole (211) in the body of rod (21) and correspond with guide way (112) lug (214), fixture block (22) set up in elliptical hole (212), the shape and draw-in groove (111) of fixture block (22) correspond and the same, fixture block (22) include thinner narrow body (221) and set up at the wide body (222) of narrow body (221) one end, its one end of being back to wide body (222) of fixture block (22) is equipped with disk body (23), and disk body (23) rotationally set up in cavity (213), first elastic component (24) are installed on the interior diapire of elliptical hole (212).

2. The clamping mechanism for a quick-change ram configuration as claimed in claim 1, wherein: the mounting rod (11) is of a cylindrical structure.

3. The clamping mechanism for a quick-change ram configuration as claimed in claim 1, wherein: the limiting groove (1123) is positioned at the position where the guide groove (1121) deflects by 90 degrees around the central axis of the mounting rod (11).

4. The clamping mechanism for a quick-change ram configuration as claimed in claim 1, wherein: the pressure lever (200) further comprises a second elastic piece (25), and the second elastic piece (25) is arranged in the cavity (213) and is positioned between the bottom of the cavity (213) and the disc body (23).

5. The clamping mechanism for a quick-change ram configuration as claimed in claim 4, wherein: the second elastic piece (25) is a rubber block.

6. The clamping mechanism for a quick-change ram configuration as claimed in claim 1, wherein: the circular hole (211) is in clearance fit with the mounting rod (11).

7. The clamping mechanism for a quick-change ram construction as claimed in claim 1 or claim 6, wherein: the minor axis length of the elliptical hole (212) is the same as the diameter length of the circular hole (211).

8. The clamping mechanism for a quick-change ram configuration as claimed in claim 1, wherein: the end part of the pressure lever (200) is also provided with a pressure head.

9. The clamping mechanism for a quick-change ram configuration as claimed in claim 1, wherein: the first elastic member (24) is a compression spring.

10. The clamping mechanism for a quick-change ram configuration as claimed in claim 1, wherein: one end of the hinged rod (12) is hinged to a piston rod of the air cylinder (300), and the other end of the hinged rod (12) is connected with a hinged seat arranged on the air cylinder (300) through a hinged connecting rod.