CN210893664U

CN210893664U - Hinge fatigue life test machine

Info

Publication number: CN210893664U
Application number: CN201922327215.5U
Authority: CN
Inventors: 邓冠清; 胡志英; 欧阳继强; 邓永清
Original assignee: Foshan Zhifu Furniture Accessories Co ltd
Current assignee: Foshan Zhifu Furniture Accessories Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-06-30
Anticipated expiration: 2029-12-20

Abstract

The utility model discloses a hinge fatigue life test machine, it includes controller, workstation and fixes first drive arrangement, second drive arrangement and anchor clamps on the workstation, anchor clamps are used for the fixed part of fixed hinge, first drive arrangement is connected with first crank and drives first crank and make swing motion, and first crank can promote the movable part of hinge and make the hinge open, second drive arrangement is connected with the second crank and drives the second crank and make swing motion, and the movable part that the second crank can promote the hinge makes the hinge close, the controller is connected with first drive arrangement and second drive arrangement electricity. Adopt the utility model discloses, realize the function of automatic switching hinge in succession, improve test speed, reduce workman's intensity of labour, labour saving and time saving.

Description

Hinge fatigue life test machine

Technical Field

The utility model relates to a test equipment technical field especially relates to a hinge fatigue life test machine.

Background

Furniture with adjustable use angles is generally connected by adopting a multi-gear hinge, such as a sofa, a seat, a bed, a desk and the like, and after the multi-gear hinge is produced, fatigue life test needs to be carried out on the hinge so as to determine whether the quality of the hinge reaches the standard. The traditional inspection mode is that through manual operation, the multi-gear hinge of manual swing carries out switching operation, and according to rated switching number of times after, then whether the defects such as card is dead, gear damage appear in the inspection multi-gear hinge, however this kind of test mode need go on for a long time, consuming time and wasting force.

Disclosure of Invention

The utility model aims to solve the technical problem that a hinge fatigue life test machine is provided, realizes the function of automatic switching hinge in succession, improves test speed, reduces workman's intensity of labour, labour saving and time saving.

In order to solve the technical problem, the utility model provides a hinge fatigue life test machine, include controller, workstation and fix first drive arrangement, second drive arrangement and anchor clamps on the workstation, anchor clamps are used for the fixed part of fixed hinge, first drive arrangement is connected with first crank and drives first crank and make oscillating motion, and first crank can promote the movable part of hinge and make the hinge open, second drive arrangement is connected with the second crank and drives the second crank and make oscillating motion, and the second crank can promote the movable part of hinge and make the hinge close, the controller is connected with first drive arrangement and second drive arrangement electricity.

The first driving device and the second driving device respectively comprise a base, a driving air cylinder, a rack, a transmission shaft and a gear, the base is fixed on the workbench, the transmission shaft is rotatably connected with the base, the gear is installed on the transmission shaft, the transmission shaft is close to one end of the clamp is connected with a corresponding crank, the rack is meshed with the gear, and the driving air cylinder drives the rack to slide on the base so as to enable the crank to swing.

The clamp is positioned between the first driving device and the second driving device, and the extending rod of the driving cylinder of the first driving device and the extending rod of the driving cylinder of the second driving device extend in opposite directions.

The first crank and the second crank respectively comprise a swing rod and a push rod, one end of each swing rod is connected with the corresponding driving device, and the other end of each swing rod is connected with the corresponding push rod.

The swing rod is provided with a plurality of round holes along the long edge direction, and one end of the push rod is connected with any round hole.

Wherein, the push rod is sleeved with a rubber sleeve.

The fixture comprises a fixing seat and a fastening piece, the fixing seat is fixed on the workbench, a through groove used for clamping a hinge fixing part is formed in the fixing seat, and the fastening piece transversely penetrates through the through groove to enable the hinge fixing part to be locked on the fixture.

The through groove comprises a locking fine groove and a mounting hole matched with the shape of the hinge fixing part, the locking fine groove penetrates through the side wall of the fixing seat through the mounting hole, and the width of the locking fine groove is smaller than that of the mounting hole.

Wherein, the mounting hole is a quadrilateral hole or a circular hole.

The hinge comprises a hinge body, a controller and a counter, wherein the counter is electrically connected with the controller and used for accumulating the opening or closing times of the hinge.

Implement the utility model has the advantages that:

the utility model discloses a test machine is through the first crank rotation of first drive arrangement drive, and first crank promotes the hinge and opens, and through second drive arrangement drive second crank rotation, the second crank promotes the hinge and closes, and a circulation of hinge is accomplished promptly with a switch to one opening of hinge. Adopt the utility model discloses a during the test machine, the rated switch number of times of hinge is accomplished to first drive arrangement of controller control and second drive arrangement, if the rated switch number of times is accomplished the back hinge can also normally be opened and closed, then indicates that the hinge accords with the standard. It is thus clear that adopt the utility model discloses a test machine can realize the function of automatic switching hinge in succession, need not the manual work and carries out the life-span test of hinge, not only can improve test speed, can also save present expensive human cost.

Furthermore, the utility model discloses a test machine is owing to accomplish the switching of hinge through articulate promotion, only needs to install the hinge and can carry out the life-span test on the anchor clamps of looks adaptation, and is visible, the utility model discloses a test machine is applicable to the hinge of test different grade type.

Drawings

Fig. 1 is a perspective view of a hinge fatigue life testing machine provided by the present invention;

fig. 2 is another perspective view of the hinge fatigue life tester provided by the present invention;

fig. 3 is a top view of a hinge fatigue life testing machine provided by the present invention;

fig. 4 is a top view of a first embodiment of a fixture in a hinge fatigue life testing machine according to the present invention;

fig. 5 is a top view of a second embodiment of a fixture in the hinge fatigue life testing machine according to the present invention;

fig. 6 is a schematic diagram illustrating a connection between a counter and a controller in the hinge fatigue life testing machine according to the present invention;

fig. 7 is a perspective view of another usage state of the hinge fatigue life testing machine provided by the present invention;

fig. 8 is a perspective view of another view angle of another using state of the hinge fatigue life testing machine according to the present invention.

In the figure: 1. a work table; 2. a first driving device; 21. a first base; 22. a first driving cylinder; 23. a first rack; 24. a first drive shaft; 25. a first gear; 3. a second driving device; 31. a second base; 32. a second driving cylinder; 33. a second rack; 34. a second drive shaft; 35. a second gear; 4. a clamp; 41. a fixed seat; 411. a through groove; 4111. locking the slot; 4112. mounting holes; 42. a fastener; 5. a first crank; 51. a first swing link; 52. a first push rod; 6. a second crank; 61. a second swing link; 62. a second push rod; 7. a controller; 8. a counter.

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 embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the utility model relates to a hinge fatigue life test machine, it includes controller 7, workstation 1 and fixes first drive arrangement 2, second drive arrangement 3 and anchor clamps 4 on workstation 1, anchor clamps 4 are used for the fixed part of fixed hinge, first drive arrangement 2 is connected with first crank 5, and controller 7 controls first drive arrangement 2 drive first crank 5 and makes swing motion, and first crank 5 is used in one side of hinge movable part to promote the hinge and open, second drive arrangement 3 is connected with second crank 6, and controller 7 controls second drive arrangement 2 drive second crank 6 and makes swing motion, and second crank 6 is used in the opposite side of hinge movable part, thereby promotes the hinge and close, and the hinge is opened, is closed for a cycle, circulates according to this.

For realizing that first crank 5, second crank 6 promote the hinge and open and close, first drive arrangement 2, second drive arrangement 3 all include the base, drive actuating cylinder, rack, transmission shaft and gear, the base is fixed on the workstation, the transmission shaft rotates with the base to be connected, the gear is installed on the transmission shaft, and the transmission shaft is close to the one end and the crank connection that corresponds of anchor clamps, the rack sets up with gear engagement, it slides on the base to drive actuating cylinder drive actuating rack, rack and gear engagement to make the crank swing.

Specifically, as shown in fig. 2 and 3, the first driving device 2 includes a first base 21, a first driving cylinder 22, a first rack 23, a first transmission shaft 24 and a first gear 25, the first base 21 is fixed on the workbench 1 through a screw, the first transmission shaft 24 is rotatably connected to the first base 21, the first gear 25 is installed on the first transmission shaft 24, one end of the first transmission shaft 24 close to the clamp 4 is connected to the first crank 5, the first gear 25 is meshed with the first rack 23, a sliding groove is formed in the first base 21, the sliding groove has a guiding function, the first rack 23 is slidably connected to the sliding groove, the first driving cylinder 22 is fixed on the first base 21 or the workbench 1, preferably, a cylinder body of the first driving cylinder 22 is fixed on the first base 21, and an extension rod of the first driving cylinder 22 is connected to the first rack 23. When the hinge needs to be opened, the controller 7 controls the extension rod of the first driving cylinder 22 to extend to drive the first rack 23 to move forwards, the first rack 23 is meshed with the first gear 25, so that the first driving shaft 24 rotates, the first driving shaft 24 drives the first crank 5 to swing around the axial lead of the first driving shaft 24, the first crank 5 acts on one side of the hinge movable part, so that the hinge is pushed to be opened, then the controller 7 controls the extension rod of the first driving cylinder 22 to retract to drive the first rack 23 to reset, the first rack 23 is meshed with the first gear 25, so that the first driving shaft 24 rotates reversely, the first crank 5 resets, and the next action cycle is waited. As shown in fig. 1 and 3, the second driving device 3 includes a second base 31, a second driving cylinder 32, a second rack 33, a second transmission shaft 34 and a second gear 35, the second base 31 is fixed on the workbench 1 by screws, the second transmission shaft 34 is rotatably connected with the second base 31, the second gear 35 is mounted on the second transmission shaft 34, one end of the second transmission shaft 34 close to the clamp 4 is connected with the second crank 6, the second gear 35 is meshed with the second rack 33, a sliding groove is formed on the second base 31, the sliding groove has a guiding function, the second rack 33 is slidably connected with the sliding groove, the second driving cylinder 32 is fixed on the second base 31 or the workbench 1, preferably, a cylinder body of the second driving cylinder 32 is fixed on the second base 31, and an extending rod of the second driving cylinder 32 is connected with the second rack 33. When the hinge needs to be closed, the controller 7 controls the extension rod of the second driving cylinder 32 to extend to drive the second rack 33 to move forwards, the second rack 33 is meshed with the second gear 35, so that the second transmission shaft 34 rotates, the second transmission shaft 34 drives the second crank 6 to swing around the axial lead of the second transmission shaft 34, the second crank 6 acts on the other side of the hinge movable part, so that the hinge is pushed to be closed, then the controller 7 controls the extension rod of the second driving cylinder 32 to retract to drive the second rack 33 to reset, the second rack 33 is meshed with the second gear 35, so that the second transmission shaft 34 rotates reversely, the second crank 6 resets, and the next action cycle is waited.

Further, in order to arrange the positions of the first driving device 2 and the second driving device 3 reasonably, the clamp 4 is positioned between the first driving device 2 and the second driving device 3, and the extending rod extending directions of the first driving cylinder 22 and the second driving cylinder 32 are opposite.

Further, the first driving cylinder 22 and the second driving cylinder 32 may be stroke-adjustable cylinders or cylinders with magnetic switches, and the stroke-adjustable cylinders and the cylinders with magnetic switches all adjust the extension lengths of the extension rods, and preferably are stroke-adjustable cylinders. The moving distance of the first rack 23 is controlled by adjusting the extension length of the extension rod of the first driving cylinder 22, and the first rack 23 and the first gear 25 can control the rotating angles of the first gear 25 and the first transmission shaft 24 and further control the swinging angle of the first crank 5, so that the first crank 5 can push the hinge to be completely opened; the moving distance of the second rack 33 is controlled by adjusting the extension length of the extension rod of the second driving cylinder 32, and the second rack 33 and the second gear 35 can control the rotating angles of the second gear 35 and the second transmission shaft 34, and further control the swinging angle of the second crank 6, so that the first crank 5 can push the hinge to be in a closed state, and the driving device can drive the crank to swing in a manner suitable for hinges with different opening angles.

In order to realize that the first crank 5 and the second crank 6 can better push the movable part of the hinge, the first crank 5 and the second crank 6 both comprise a swing rod and a push rod, one end of the swing rod is connected with a corresponding driving device, and the other end of the swing rod is connected with the push rod. Specifically, as shown in fig. 1 and 2, the first crank 5 includes a first swing link 51 and a first push rod 52, one end of the first swing link 51 is connected to one end of the first transmission shaft 24 close to the clamp 4, and the other end is connected to the first push rod 52, when the first transmission shaft 24 rotates, the first swing link 51 drives the first push rod 52 to rotate around the axial lead of the first transmission shaft 24, and the peripheral wall of the first push rod 52 acts on one side of the hinge moving portion to push the hinge to open; the second crank 6 comprises a second swing rod 61 and a second push rod 62, one end of the second swing rod 61 is connected with one end of the second transmission shaft 34 close to the clamp 4, the other end of the second swing rod is connected with the second push rod 62, when the second transmission shaft 34 rotates, the second swing rod 61 drives the second push rod 62 to rotate around the axial lead of the second transmission shaft 34, and the peripheral wall of the second push rod 62 acts on the other side of the hinge movable part to push the hinge to close.

Furthermore, in order to match the situation that the lengths of the hinge movable parts are different, the first swing rod 51 and the second swing rod 62 are provided with 4 round holes along the long side direction, and one end of the first push rod 52 is connected with any round hole on the first swing rod 51, so that the first push rod 52 can act on one side of the hinge movable part; one end of the second pushing rod 62 is connected with any round hole on the second swing link 61, so that the second pushing rod 62 can act on the other side of the hinge movable part.

Further, rubber sleeves are sleeved on the surfaces of the first push rod 52 and the second push rod 62, and the rubber sleeves play a role in protecting the surfaces of the hinges so as to prevent the hinges from being scratched when the first push rod 52 and the second push rod 62 push the hinges to open and close.

In order to improve the stability of the fixing portion of the hinge of the clamp 4, referring to fig. 4 and 5, the clamp 4 includes a fixing seat 41 and a fastening member 42, the fixing seat 41 is fixed on the worktable 1, a through groove 411 for clamping the fixing portion of the hinge is opened on the fixing seat 41, the fastening member 42 crosses the through groove 411 so as to lock the fixing portion of the hinge on the clamp 4, specifically, the fastening member 42 is a screw, when the hinge is fixed, an operator firstly unscrews the screw, then inserts the fixing portion of the hinge into the through groove 411, and finally, the operator screws the screw.

Further, lead to groove 411 includes locking slot 4111 and the mounting hole 4112 with hinge fixing part shape adaptation, locking slot 4111 runs through out the lateral wall of fixing base 41 by mounting hole 4112, and locking slot 4111's width is little than mounting hole 4112, and the shape phase-match of mounting hole 4112 shape and hinge fixing part, the fixing part of tight hinge can be pressed from both sides better to anchor clamps 4, avoids shifting at the in-process hinge of test, influences the test result.

Further, in order to achieve the purpose that the present invention can be applied to hinges of different types, the shape of the mounting hole 4112 has two schemes, as shown in fig. 1 and 4, the first scheme is that the mounting hole 4112 is a quadrilateral hole, and is suitable for sofa backrest, armrest and headrest hinges; as shown in fig. 5 and 7, a second solution is that the mounting hole 4112 is a circular hole, which is suitable for use in a sofa headrest hinge.

In order to record the number of times of testing the hinge, referring to fig. 6, the hinge testing device further comprises a counter 8, the counter 8 is electrically connected with the controller 7, the counter 8 is used for accumulating the number of times of opening or closing the hinge, the controller 7 controls the first driving cylinder 22 and the second driving cylinder 32 to extend and simultaneously sends signals to the counter 8, the counter 8 accumulates the received number of times, the number of times of testing the hinge can be obtained, and when the number of times of testing the hinge is accumulated to a rated number, the counter 8 returns to 0. In addition, the extension rod of the first driving air cylinder 22 or the extension rod of the second driving air cylinder 32 can be detected to extend through the infrared sensing switch, when the extension rod triggers the infrared sensing switch to generate a signal, the infrared sensing switch sends the signal to the counter 8, the counter 8 accumulates the received times, the testing times of the hinge can be obtained, and when the rated times are accumulated, the counter 8 returns to 0.

The working principle is as follows: depending on the type of hinge tested, the appropriate clamp 4 is selected and the extension rod extension length of the first and

second drive cylinders

22, 32 is adjusted. An operator fixes a fixing part of a hinge on a clamp 4, when the hinge is tested to be opened for the first time, a controller 7 controls a first driving device 2 to drive a first crank 5 to swing for an angle, so that the first crank 5 pushes the hinge to be opened to a maximum gear, then the controller controls the first driving device 2 to drive the first crank 5 to reset, when the hinge is tested to be closed for the first time, a controller controls a second driving device 3 to drive a second crank 6 to swing for an angle, so that the second crank 6 pushes the hinge to be closed, then the controller controls the second driving device 3 to drive the second crank 6 to reset, the process is repeated, when a counter 9 counts 50000 times, the controller controls the first driving device 2 and the second driving device 3 to stop, and the operator can check whether the defects such as jamming, gear damage and the like occur. Adopt the utility model discloses, realize the function of automatic switching hinge in succession, improve test speed, reduce workman's intensity of labour, labour saving and time saving.

The utility model discloses the test machine can be used to sofa backrest, handrail, headrest hinge fatigue life test, and the structure can refer to 1, 2, the utility model discloses the test machine can be used to sofa headrest hinge fatigue life test, and the structure can refer to 7, 8, so according to the type of hinge, can rationally arrange first drive arrangement 2, the fatigue life test experiment of hinge is carried out to the position of second drive arrangement 3 and anchor clamps 4, in addition, the length of first pendulum rod 51 and second pendulum rod 61 also can be selected according to the length of hinge movable part for first catch bar 51 and second catch bar 52 can be used in the movable part of hinge

Furthermore, the utility model discloses the test machine is not only limited to the hinge in the furniture technical field and uses, through the anchor clamps 4 of changing the adaptation, still can be used to the hinge in other technical fields and use, like car handrail hinge.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The hinge fatigue life testing machine is characterized by comprising a controller, a workbench, a first driving device, a second driving device and a clamp, wherein the first driving device, the second driving device and the clamp are fixed on the workbench, the clamp is used for fixing a fixing part of a hinge, the first driving device is connected with a first crank and drives the first crank to swing, the first crank can push a movable part of the hinge to open the hinge, the second driving device is connected with a second crank and drives the second crank to swing, the second crank can push the movable part of the hinge to close the hinge, and the controller is electrically connected with the first driving device and the second driving device.

2. The hinge fatigue life testing machine of claim 1, wherein each of the first driving device and the second driving device comprises a base, a driving cylinder, a rack, a transmission shaft and a gear, the base is fixed on the worktable, the transmission shaft is rotatably connected with the base, the gear is mounted on the transmission shaft, one end of the transmission shaft close to the clamp is connected with a corresponding crank, the rack is engaged with the gear, and the driving cylinder drives the rack to slide on the base so as to enable the crank to swing.

3. A hinge fatigue life tester as claimed in claim 2, wherein said jig is located between the first driving means and the second driving means, and the extension bar of the driving cylinder of the first driving means and the extension bar of the driving cylinder of the second driving means extend in opposite directions.

4. The hinge fatigue life testing machine as claimed in claim 1, wherein each of the first crank and the second crank comprises a swing link and a push rod, one end of the swing link is connected with the corresponding driving device, and the other end of the swing link is connected with the push rod.

5. The hinge fatigue life tester as claimed in claim 4, wherein said swing link is formed with a plurality of circular holes along a long side direction thereof, and one end of said push rod is connected to any one of the circular holes.

6. A hinge fatigue life tester as claimed in claim 4 or 5, wherein said push rod is sleeved with a rubber sleeve.

7. A hinge fatigue life tester as claimed in any one of claims 1 to 5, wherein said clamp comprises a fixing base fixed on the table, a through slot for holding the fixing portion of the hinge is opened on said fixing base, and a fastener is passed through the through slot to lock the fixing portion of the hinge to the clamp.

8. The hinge fatigue life tester as claimed in claim 7, wherein said through slot includes a locking slot and a mounting hole adapted to the shape of the hinge fixing portion, said locking slot extends through the side wall of the fixing base from the mounting hole, and the width of the locking slot is smaller than the width of the mounting hole.

9. The hinge fatigue life tester as claimed in claim 8, wherein the mounting hole is a quadrilateral hole or a circular hole.

10. A hinge fatigue life tester according to any one of claims 1 to 5, further comprising a counter electrically connected to the controller, the counter being configured to count the number of times the hinge is opened or closed.