Precise large-tonnage force locking device

Abstract

The utility model relates to the technical field of force locking devices and discloses a precise large-tonnage force locking device which comprises a first end cover, a screw rod, a second end cover and a third end cover, the first end cover is fixedly connected to the top end of the outer wall of the screw rod, the second end cover is fixedly connected to one end of the outer wall of the first end cover, and the third end cover is fixedly connected to the other end of the outer wall of the screw rod. A cylinder body is installed on the inner wall of the second end cover, a piston is slidably connected to the inner wall of the cylinder body, a plurality of first springs are installed at the bottom of the cylinder body, and the screw rod is detachably connected with the third end cover through a dismounting and mounting mechanism. According to the utility model, through the arrangement of the dismounting mechanism, the fixed connection between the screw rod and the third end cover is released by the stud and the mounting seat in a separated state, so that the dismounting of the third end cover is completed, and the screw rod and the third end cover are fixedly mounted by the stud and the mounting seat in a threaded mounting state, so that the mounting of the third end cover is completed; the novel structure is convenient for operators to disassemble, assemble and replace the damaged third end cover.

Description

Technical Field

[0001] The utility model relates to the technical field of locking devices, in particular to a locking device suitable for precision large-tonnage. Background Art

[0002] In the mold production field, during the production and debugging of new equipment, the mold is placed on the workbench for a long time to close the film and open the mold. Therefore, it is necessary to use a precision large-tonnage locker to lock the workbench and nut on the mold device.

[0003] The existing precision large-tonnage locking device pressurizes the inside of the cylinder body through a pressurizing station, so that the piston inside the cylinder body is pressed to move toward the outside of the cylinder body, and the piston moving toward the outside pushes the end cover. At the same time, the multiple first springs installed between the cylinder body and the end cover are stretched by this thrust, so that the pushed end cover locks the workbench and the nut on the mold device. However, after the end cover has been used for a long period of time, the end surface of the end cover in contact with the workbench will be worn, and the end cover needs to be replaced. However, the existing end cover and the multiple springs on the cylinder body are fixedly installed, which makes it inconvenient to replace the end cover. Utility Model Content

[0004] The purpose of the utility model is to provide a locking device suitable for a large-tonnage precision in order to solve the problem of inconvenience in replacing the end cover.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a precision large-tonnage locking device, comprising a first end cover, a screw, a second end cover, and a third end cover, wherein the first end cover is fixedly connected to the top end of the outer wall of the screw, the second end cover is fixedly connected to one end of the outer wall of the screw, a cylinder is installed on the inner wall of the second end cover, a piston is slidably connected to the inner wall of the cylinder, a plurality of first springs are installed on the bottom of the cylinder, and the screw and the third end cover are detachably connected through a disassembly mechanism;

[0006] The disassembly and assembly mechanism includes a button assembly, a drive assembly, and a locking assembly;

[0007] The button assembly is used to unlock or lock the operation of the drive assembly;

[0008] The driving assembly in the unlocked state is used to drive the locking assembly to operate;

[0009] The locking assembly in the operating state is used to fix the screw rod and the third end cover.

[0010] As a further solution of the utility model: the locking assembly includes a plurality of mounting seats and studs;

[0011] The mounting seat is fixedly connected to the bottom of the first spring, the stud is rotatably mounted inside the third end cover, and the stud is threadedly connected to the protruding portion of the mounting seat.

[0012] As a further solution of the utility model: the driving assembly includes a gear ring and a plurality of gears;

[0013] The gear is fixedly mounted on the outer wall of the stud, the gear ring is rotatably mounted on the outer wall of the protruding portion of the third end cover, and a plurality of the gears are meshed with the tooth grooves of the gear ring.

[0014] As a further solution of the utility model: the gear ring in the rotating state is used to drive the multiple gears to rotate synchronously, and the multiple gears in the synchronous rotating state respectively drive the multiple studs to rotate synchronously.

[0015] As a further solution of the utility model: the key assembly includes a bracket, an insertion rod, a second spring, and a socket;

[0016] The bracket is fixedly connected to the end surface of the gear ring, the insertion rod is slidably connected to the inside of the bracket and extends to the outside, the second spring is installed on the outer wall of the insertion rod, and the two ends of the second spring are respectively fixedly connected to the end of the bracket and the protrusion of the insertion rod, and the socket is opened on the outer wall of the protrusion of the third end cover and extends to the inside.

[0017] As a further solution of the utility model: the insertion rod in the outward moving state is used to stretch the second spring, and the second spring in the reset state is used to drive the insertion rod to be inserted into the inside of the socket, and the insertion rod and the socket in the engaged state are used to lock and limit the rotation of the gear ring.

[0018] As a further solution of the utility model: a "V"-shaped ring groove is formed on the outer wall of the piston, and a sealing ring is arranged inside the "V"-shaped ring groove, and the sealing ring is used to improve the sealing performance of the inside of the cylinder body.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] By setting up a disassembly and assembly mechanism, the stud and mounting seat in the separated state release the fixed connection between the screw rod and the third end cover, so that the third end cover is disassembled, and the stud and mounting seat in the threaded installation state fix the screw rod and the third end cover, so that the installation of the third end cover is completed. This new structure makes it easy for operators to disassemble and replace the damaged third end cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0022] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0023] Figure 3 It is a schematic diagram of the disassembly and assembly mechanism structure of the utility model.

[0024] In the figure: 1. first end cover; 2. screw; 3. cylinder body; 4. second end cover; 5. third end cover; 6. disassembly and assembly mechanism; 601. mounting seat; 602. stud; 603. gear; 604. gear ring; 605. bracket; 606. plug rod; 607. second spring; 608. socket; 7. piston; 8. first spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figures 1 to 3 In the embodiment of the utility model, a locking device suitable for precision large tonnage includes a first end cover 1, a screw rod 2, a second end cover 4, and a third end cover 5. The first end cover 1 is fixedly connected to the top of the outer wall of the screw rod 2, the second end cover 4 is fixedly connected to one end of the outer wall of the screw rod 2, a cylinder body 3 is installed on the inner wall of the second end cover 4, a piston 7 is slidably connected to the inner wall of the cylinder body 3, and a plurality of first springs 8 are installed at the bottom of the cylinder body 3. The screw rod 2 and the third end cover 5 are disassembled and connected through a disassembly mechanism 6;

[0027] The disassembly and assembly mechanism 6 includes a button assembly, a drive assembly, and a locking assembly;

[0028] The button assembly is used to unlock or lock the operation of the drive assembly;

[0029] The driving component in the unlocked state is used to drive the locking component to operate;

[0030] The locking assembly in the operating state is used to fix the screw rod 2 and the third end cover 5.

[0031] In this embodiment: when the locking device is used, the inside of the cylinder body 3 is pressurized by the pressurizing station, so that the piston 7 inside the cylinder body 3 is pressed to move toward the outside of the cylinder body 3, and the piston 7 moving outward pushes the third end cover 5. At the same time, the multiple first springs 8 installed between the cylinder body 3 and the third end cover 5 are stretched by this thrust, so that the pushed third end cover 5 locks the worktable and the nut on the mold device.

[0032] When the third end cover 5 needs to be disassembled, firstly, the insertion rod 606 on the bracket 605 is pulled outward from the insertion hole 608, and the insertion rod 606 moving outward stretches the second spring 607, and the insertion hole 608 is separated from the insertion rod 606, and the separated insertion hole 608 and the insertion rod 606 release the rotation limit of the gear ring 604. At this time, the hand rotates the gear ring 604 clockwise, and because the multiple gears 603 are meshed with the tooth grooves of the gear ring 604, the gear ring 604 in the clockwise rotating state drives the multiple gears 603 to rotate synchronously, and the multiple gears 603 in the clockwise synchronous rotating state respectively drive the multiple studs 602 to rotate synchronously, so that the multiple studs 602 in the clockwise rotating state are respectively separated from the multiple mounting seats 601, and the studs 602 and the mounting seats 601 in the separated state release the fixed connection between the screw 2 and the third end cover 5, so that the third end cover 5 is disassembled;

[0033] When the third end cover 5 needs to be installed, the hand rotates the gear ring 604 counterclockwise, so that the gear ring 604 in the counterclockwise rotating state drives the multiple studs 602 to rotate counterclockwise synchronously through the multiple gears 603, and the multiple studs 602 in the counterclockwise rotating state are threadedly connected with the multiple mounting seats 601 respectively, and the studs 602 and the mounting seats 601 in the threaded mounting state fix the screw 2 and the third end cover 5. Finally, the hand loosens the plug rod 606, so that the second spring 607 in the reset state drives the plug rod 606 to move inward and insert it into the inside of the socket 608, and the plug rod 606 and the socket 608 in the engaged state lock and limit the rotation of the gear ring 604, so that the multiple studs 602 cannot rotate, and thus the installation of the third end cover 5 is completed.

[0034] Please refer to Figure 2 , the locking assembly includes a plurality of mounting seats 601 and studs 602;

[0035] The mounting seat 601 is fixedly connected to the bottom of the first spring 8 , the stud 602 is rotatably mounted inside the third end cover 5 , and the stud 602 is threadedly connected to the protruding portion of the mounting seat 601 .

[0036] In this embodiment: a plurality of studs 602 in a counterclockwise rotating state are respectively threadedly connected with a plurality of mounting seats 601 , and the studs 602 and mounting seats 601 in a threaded mounting state fix the screw rod 2 and the third end cover 5 .

[0037] Please refer to Figure 3 , the driving assembly includes a gear ring 604 and a plurality of gears 603;

[0038] The gear 603 is fixedly mounted on the outer wall of the stud 602 , the gear ring 604 is rotatably mounted on the outer wall of the protruding portion of the third end cover 5 , and the plurality of gears 603 are meshed with the tooth grooves of the gear ring 604 .

[0039] In this embodiment: the gear ring 604 is rotated clockwise by hand, and since the multiple gears 603 are meshed with the tooth grooves of the gear ring 604, the gear ring 604 in the clockwise rotating state drives the multiple gears 603 to rotate synchronously, and the multiple gears 603 in the clockwise synchronous rotating state respectively drive the multiple studs 602 to rotate synchronously.

[0040] Please refer to Figure 3 The rotating gear ring 604 is used to drive the multiple gears 603 to rotate synchronously, and the multiple gears 603 in the synchronous rotation state respectively drive the multiple studs 602 to rotate synchronously.

[0041] In this embodiment: by rotating the gear ring 604 counterclockwise by hand, the gear ring 604 in the counterclockwise rotating state drives the multiple studs 602 to rotate counterclockwise synchronously through the multiple gears 603, and the multiple studs 602 in the counterclockwise rotating state are threadedly connected with the multiple mounting seats 601 respectively.

[0042] Please refer to Figure 3 , the button assembly includes a bracket 605, an insert rod 606, a second spring 607, and a socket 608;

[0043] The bracket 605 is fixedly connected to the end face of the gear ring 604, the insertion rod 606 is slidably connected to the inside of the bracket 605 and extends to the outside thereof, the second spring 607 is installed on the outer wall of the insertion rod 606, and the two ends of the second spring 607 are respectively fixedly connected to the end of the bracket 605 and the protrusion of the insertion rod 606, and the hole 608 is opened on the outer wall of the protrusion of the third end cover 5 and extends to the inside thereof.

[0044] In this embodiment: the insertion rod 606 on the bracket 605 is pulled outward from the insertion hole 608, the insertion rod 606 moving outward stretches the second spring 607, and the insertion hole 608 is separated from the insertion rod 606, and the separated insertion hole 608 and the insertion rod 606 release the rotation limit on the gear ring 604.

[0045] Please refer to Figure 3 The insertion rod 606 in the outward moving state is used to stretch the second spring 607, and the second spring 607 in the reset state is used to drive the insertion rod 606 to be inserted into the inside of the hole 608, and the insertion rod 606 and the hole 608 in the engaged state are used to lock and limit the rotation of the gear ring 604.

[0046] In this embodiment: the insertion rod 606 is loosened by hand, so that the second spring 607 in the reset state drives the insertion rod 606 to move inward and insert into the inside of the socket 608, and the insertion rod 606 and the socket 608 in the engaged state lock and limit the rotation of the gear ring 604, so that the multiple studs 602 cannot rotate.

[0047] Please refer to Figure 2 A “V”-shaped ring groove is formed on the outer wall of the piston 7 , and a sealing ring is arranged inside the “V”-shaped ring groove, and the sealing ring is used to improve the sealing performance inside the cylinder body 3 .

[0048] In this embodiment: the interior of the cylinder body 3 is pressurized by a pressurizing station, so that the piston 7 inside the cylinder body 3 is pressed and moves toward the outside of the cylinder body 3, and the piston 7 moving outward pushes the third end cover 5. At the same time, multiple first springs 8 installed between the cylinder body 3 and the third end cover 5 are stretched by the secondary thrust, so that the pushed third end cover 5 locks the worktable and the nut on the mold device.

[0049] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A locking device suitable for a high-tonnage precision, comprising a first end cover (1), a screw (2), a second end cover (4), and a third end cover (5), wherein the first end cover (1) is fixedly connected to the top end of the outer wall of the screw (2), the second end cover (4) is fixedly connected to one end of the outer wall of the screw (2), a cylinder (3) is installed on the inner wall of the second end cover (4), a piston (7) is slidably connected to the inner wall of the cylinder (3), and a plurality of first springs (8) are installed on the bottom of the cylinder (3), characterized in that: The screw rod (2) and the third end cover (5) are detachably connected via a disassembly mechanism (6); The disassembly and assembly mechanism (6) comprises a button assembly, a drive assembly, and a locking assembly; The button assembly is used to unlock or lock the operation of the drive assembly; The driving assembly in the unlocked state is used to drive the locking assembly to operate; The locking assembly in the operating state is used to fix the screw rod (2) and the third end cover (5) in a fixed manner.

2. The locking device for high-precision large tonnage according to claim 1 is characterized in that: The locking assembly comprises a plurality of mounting seats (601) and studs (602); The mounting seat (601) is fixedly connected to the bottom of the first spring (8), the stud (602) is rotatably mounted inside the third end cover (5), and the stud (602) is threadedly connected to the protruding portion of the mounting seat (601).

3. The locking device suitable for high-precision large-tonnage use according to claim 2 is characterized in that: The driving assembly comprises a gear ring (604) and a plurality of gears (603); The gear (603) is fixedly mounted on the outer wall of the stud (602), the gear ring (604) is rotatably mounted on the outer wall of the protruding portion of the third end cover (5), and a plurality of the gears (603) are meshed with tooth grooves of the gear ring (604).

4. The locking device for high-precision large-tonnage as claimed in claim 3 is characterized in that: The gear ring (604) in a rotating state is used to drive the plurality of gears (603) to rotate synchronously, and the plurality of gears (603) in a synchronously rotating state respectively drive the plurality of studs (602) to rotate synchronously.

5. The locking device suitable for high-precision large-tonnage use according to claim 3 is characterized in that: The key assembly comprises a bracket (605), an insertion rod (606), a second spring (607), and a socket (608); The bracket (605) is fixedly connected to the end surface of the gear ring (604), the insertion rod (606) is slidably connected to the inside of the bracket (605) and extends to the outside thereof, the second spring (607) is installed on the outer wall of the insertion rod (606), and the two ends of the second spring (607) are respectively fixedly connected to the end of the bracket (605) and the protrusion of the insertion rod (606), and the insertion hole (608) is opened on the outer wall of the protrusion of the third end cover (5) and extends to the inside thereof.

6. The locking device for high-precision large-tonnage as claimed in claim 5 is characterized in that: The insertion rod (606) in the outward moving state is used to stretch the second spring (607), and the second spring (607) in the reset state is used to drive the insertion rod (606) to be inserted into the inside of the insertion hole (608), and the insertion rod (606) and the insertion hole (608) in the engaged state are used to lock and limit the rotation of the gear ring (604).

7. The locking device for high-precision large-tonnage as claimed in claim 1 is characterized in that: The outer wall of the piston (7) is provided with a V-shaped ring groove, and a sealing ring is arranged inside the V-shaped ring groove, wherein the sealing ring is used to improve the sealing performance inside the cylinder body (3).

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