CN115901157A

CN115901157A - Directional drop test equipment with adjustable release height

Info

Publication number: CN115901157A
Application number: CN202310011669.XA
Authority: CN
Inventors: 陈昌鹤; 洪军华; 杨鑫; 彭邵华; 徐晓文
Original assignee: Yingtan Taier Internet Of Things Research Center Co ltd
Current assignee: Yingtan Taier Internet Of Things Research Center Co ltd
Priority date: 2023-01-05
Filing date: 2023-01-05
Publication date: 2023-04-04

Abstract

The invention discloses directional drop test equipment with adjustable release height, which comprises a frame, wherein a servo motor is arranged in the frame, a ball screw is arranged on an output shaft of the servo motor, a lifting slide block is matched on the ball screw, a lifting track is arranged in the frame, a rotating shaft is arranged in the lifting track in a sliding manner and is rotatably arranged in the lifting slide block, through the arrangement of the servo motor, the ball screw, the lifting slide block, the rotating shaft, a gear and a rack, the servo motor drives the ball screw to rotate, so that the lifting slide block is driven to move upwards, the lifting slide block is connected with the rotating shaft to drive the gear to move upwards, when the gear and the rack are meshed with each other, the rotation of the gear is realized, the support plate is overturned through the connection of the rotating shaft, the purpose of performing the directional drop test on electronic equipment placed on the support plate is realized, compared with the traditional test equipment, the device saves the time required by clamping of a clamping device, improves the test efficiency, and is simple and convenient to operate.

Description

Directional drop test equipment with adjustable release height

Technical Field

The invention relates to the technical field of electronic equipment testing devices, in particular to directional drop test equipment with adjustable release height.

Background

The mobile phone is a portable phone terminal which can be used in a wider range, is called as a mobile phone or a wireless phone, is only a communication tool at first, is called as a mobile phone controlled drop tester, is a special device for performing a drop fatigue test on the mobile phone at a certain height, has reasonable and unique structure and has sufficient applicability to mobile phones of different models, and the mobile phone directional drop tester is used for testing the durability of a shell and the drop resistance of an internal structure.

The existing directional drop test equipment generally utilizes a clamping device to clamp electronic equipment, utilizes a lifting device to control the electronic equipment to be lifted to a required height, and loosens the clamping device while descending, so that the electronic equipment falls off, and a directional drop test is completed.

But current directional drop test equipment operation is inconvenient, need carry out the centre gripping to electronic equipment fixed, and test efficiency is not high to because clamping device need realize clamping device's the loosening when descending, make the structure complicated, the cost is higher, consequently needs a directional drop test equipment of adjustable release height to satisfy people's demand.

Disclosure of Invention

The invention aims to provide directional drop test equipment with adjustable release height, and aims to solve the problems that the conventional directional drop test equipment in the background art is inconvenient to operate, needs to clamp and fix electronic equipment, is low in test efficiency, and is complex in structure and high in cost due to the fact that a clamping device needs to be loosened when descending.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a directional drop test equipment of adjustable release height, includes the frame, be provided with servo motor in the frame, install ball screw on servo motor's the output shaft, the adaptation has the lift slider on the ball screw, be provided with the lift track in the frame, slidable mounting has the pivot in the lift track, and the pivot is rotated and is installed in the lift slider, installs the gear in the pivot, slidable mounting has the rack in the lift track, installs T type connecting axle on one side of rack, rotates on the both sides wing shaft of T type connecting axle and installs same cam handle, the opposite side and the gear intermeshing of rack, install the connecting piece of bilateral symmetry in the pivot, all rotate in two connecting pieces and install the gyro wheel, slidable mounting has two splint, two in the lift track the gyro wheel all is located between two splint, be provided with a plurality of compression spring in the lift track, a plurality of compression spring is respectively even installs on two splint, the layer board is installed to the one end of pivot, install in the frame and connect the material frame to be located the below of layer board.

Preferably, a partition plate is installed on one side of the lifting track and located between the servo motor and the ball screw.

Preferably, a positioning hole is formed in the top end of the inner frame of the frame, a positioning shaft is mounted at the top end of the ball screw, the positioning hole and the cross section of the positioning shaft are both T-shaped, and the positioning shaft is rotatably mounted in the positioning hole.

Preferably, the lifting slide block is provided with a ball nut flange hole, and the ball screw is matched in the ball nut flange hole.

Preferably, the partition plate is provided with a guide shaft, the lifting slide block is provided with a guide hole, and the guide shaft is matched in the guide hole.

Preferably, a vertical lifting groove is formed in the center of the lifting track, the rotating shaft is located in the lifting groove, a gear groove is formed in the lifting track and communicated with one section of the lifting groove, and the rack and the gear are both located in the gear groove.

Preferably, the side of the lifting track is provided with an adjusting groove, the adjusting groove is communicated with the gear groove, the width of the adjusting groove is smaller than that of the gear groove, two limiting slide blocks are arranged in the adjusting groove in a sliding manner, the two limiting slide blocks are arranged on the rack, and the belly axis of the T-shaped connecting shaft is positioned in the adjusting groove.

Preferably, the lifting track is provided with a turnover groove, the turnover groove is communicated with one section of the lifting groove, the turnover groove is parallel to the gear groove, the two clamping plates are slidably mounted in the turnover groove, and the plurality of compression springs are respectively and uniformly mounted on the inner walls of the two sides of the turnover groove.

Preferably, a plurality of slide holes are formed in the two sides of the lifting track, a slide shaft is arranged in each slide hole in a sliding mode and is located in the compression spring, and the slide shafts are respectively and uniformly arranged on the two clamping plates.

Preferably, a gasket is sleeved at the belly axis of the T-shaped connecting shaft and is positioned between the cam of the cam handle and the lifting track.

The invention has the beneficial effects that:

according to the device, the servo motor drives the ball screw to rotate through the arrangement of the servo motor, the ball screw, the lifting slider, the rotating shaft, the gear and the rack, so that the lifting slider is driven to move upwards, the lifting slider is driven to ascend through the connection of the rotating shaft, when the gear and the rack are meshed with each other, the rotation of the gear is realized, the supporting plate is overturned through the connection of the rotating shaft, the purpose that electronic equipment placed on the supporting plate is subjected to directional drop test is realized, compared with traditional test equipment, the device saves time required by clamping of a clamping device, the test efficiency is improved, and the operation is simple and convenient.

According to the invention, the purpose of a directional drop test is realized by the linkage of the lifting device and the turnover device, meanwhile, a clamping and fixing mechanism is omitted, the purpose of adjusting the release height is realized by the cooperation of the rack, the T-shaped connecting shaft and the cam handle, and the arrangement of the connecting piece, the roller, the clamping plate and the compression spring ensures that the supporting plate is always kept in a horizontal state in the lifting process, so that the stability of the electronic equipment in lifting is ensured.

Drawings

Fig. 1 is a schematic front view of a directional drop test apparatus with adjustable release height according to the present invention;

FIG. 2 is a schematic rear view of a directional drop test apparatus with adjustable release height according to the present invention;

FIG. 3 is a schematic side sectional view of a directional drop test apparatus with adjustable release height according to the present invention;

FIG. 4 is an enlarged schematic structural view of the position A in FIG. 3 of the directional drop test apparatus with adjustable release height according to the present invention;

FIG. 5 is a schematic top view, partially sectioned, and partially schematic structural view of a rotating shaft of a release height adjustable directional drop test apparatus according to the present invention;

FIG. 6 is a schematic view of a partial structure of a gear front view section of a directional drop test apparatus with adjustable release height according to the present invention;

FIG. 7 is a schematic view of a partial structure of a sliding shaft elevation section of a directional drop test device with adjustable release height according to the present invention;

fig. 8 is a schematic top view, a partial sectional view, of a T-shaped connecting shaft of the release height adjustable directional drop test apparatus according to the present invention.

In the figure: 1. a frame; 2. a servo motor; 201. a partition plate; 202. a guide shaft; 3. a ball screw; 301. positioning holes; 302. positioning the shaft; 4. a lifting slide block; 401. a ball nut flange hole; 402. a guide hole; 5. a lifting rail; 501. a lifting groove; 502. a gear groove; 503. an adjustment groove; 504. a turnover groove; 505. a slide hole; 6. a rotating shaft; 7. a gear; 8. a rack; 801. a limiting slide block; 9. a cam handle; 901. a T-shaped connecting shaft; 902. a gasket; 10. a connecting member; 11. a roller; 12. a splint; 1201. a slide shaft; 13. a compression spring; 14. a support plate; 15. and (4) receiving a material frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of 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.

Referring to fig. 1-8, a directional drop test device with adjustable release height comprises a frame 1, a servo motor 2 is arranged in the frame 1, a ball screw 3 is arranged on an output shaft of the servo motor 2, a lifting slide block 4 is adapted on the ball screw 3, a lifting track 5 is arranged in the frame 1, a rotating shaft 6 is slidably arranged in the lifting track 5, the rotating shaft 6 is rotatably arranged in the lifting slide block 4, a gear 7 is arranged on the rotating shaft 6, a rack 8 is slidably arranged in the lifting track 5, a T-shaped connecting shaft 901 is arranged on one side of the rack 8, the same cam handle 9 is rotatably arranged on wing shafts on two sides of the T-shaped connecting shaft 901, the other side of the rack 8 is mutually meshed with the gear 7, connecting pieces 10 with symmetrical sides are arranged on the rotating shaft 6, rollers 11 are rotatably arranged in the two connecting pieces 10, and two clamping plates 12 are slidably arranged in the lifting track 5, the two rollers 11 are positioned between the two clamping plates 12, the lifting track 5 is internally provided with a plurality of compression springs 13, the plurality of compression springs 13 are respectively and uniformly arranged on the two clamping plates 12, one end of the rotating shaft 6 is provided with a supporting plate 14, the frame 1 is internally provided with a receiving frame 15, the receiving frame 15 is positioned below the supporting plate 14, the electronic equipment is placed on the supporting plate 14, when the release height needs to be adjusted, the cam handle 9 is rotated, at the moment, the cam handle 9 is perpendicular to the lifting track 5, so that the cam at the joint of the cam handle 9 and the T-shaped connecting shaft 901 rotates, the outer wall of the cam closer to the wing shaft center of the T-shaped connecting shaft 901 is close to the lifting track 5, and because the extension length of the web shaft of the T-shaped connecting shaft 901 is reduced, a gap is generated between the cam handle 9 and the lifting track 5, and the rack 8 can vertically slide in the lifting track 5, adjusting a rack 8 to a required height, turning a cam handle 9, enabling the cam handle 9 to be parallel to a lifting track 5 at the moment, enabling the outer wall of a cam far away from the center of a wing shaft of a T-shaped connecting shaft 901 to be close to the lifting track 5, enabling the rack 8 to be attached and fixed on the lifting track 5 due to the fact that the cam increases the extension length of the web shaft of the T-shaped connecting shaft 901, achieving the purpose of adjusting and fixing the height of the rack 8, driving a servo motor 2 at the moment, enabling an output shaft of the servo motor 2 to drive a ball screw 3 to rotate in a single direction, enabling a lifting slider 4 to lift in the vertical direction on the ball screw 3, enabling a gear 7 and a supporting plate 14 to lift together through connection of a rotating shaft 6, and enabling the gear 7 to rotate under the state of being meshed with the rack 8 due to the fact that the rotating shaft 6 is rotatably connected in the lifting slider 4 when the gear 7 is lifted to the height of the bottom end of the rack 8, thereby driving one end of the rotating shaft 6 to rotate in the lifting slide block 4, the supporting plate 14 installed on the other end of the rotating shaft 6 to make the electronic equipment on the supporting plate 14 fall into the receiving frame 15, the receiving frame 15 effectively prevents the loose parts of the electronic equipment falling from flying, and is convenient to collect, when the rotating shaft 6 is driven by the lifting slide block 4 to lift, the two connecting pieces 10 and the two rollers 11 are respectively positioned at two lower sides of the rotating shaft 6 in the vertical direction, at this time, the compression spring 13 is in the original state, the two clamping plates 12 are respectively positioned at two sides of the rollers 11, when the gear 7 is meshed with the rack 8 to generate rotation, the rotating shaft 6 rotates, the two vertical connecting pieces 10 perform circular motion with the rotating shaft 6 as the center, thereby driving the rollers 11 to drive the two clamping plates 12, so that the distance between the two clamping plates 12 is increased, at this time, the compression spring 13 is compressed by force, when the electronic equipment on the supporting plate 14 falls into the material receiving frame 15, the power supply of the servo motor 2 is turned off, the appearance and the performance of the electronic equipment are observed, and therefore the directional drop test of the electronic equipment is completed, the connection between the T-shaped connecting shaft 901 and the rack 8 is realized through the cam handle 9, and the linkage of turning between the rack 8 and the gear 7 is realized, so that the equipment has the function of adjusting the release height, and is fast and convenient to adjust, through the arrangement of the compression spring 13 and the clamping plate 12, the problem that the supporting plate 14 is inclined and turned over and the rotating shaft 6 is driven to rotate due to the influence of gravity center deviation of the electronic equipment on the supporting plate 14 when the two connecting pieces 10, the two rollers 11 and the rotating shaft 6 are lifted is effectively avoided, the horizontal stability of the supporting plate 14 when the lifting is lifted is ensured, and compared with the traditional test equipment, a clamping mechanism is omitted, the time for clamping and fixing the electronic equipment is relatively saved, the structure is simple, the operation is convenient, the cost is reduced, and the test efficiency is improved.

Referring to fig. 2-3, in the present embodiment, a partition 201 is installed on one side of the lifting track 5, the partition 201 is located between the servo motor 2 and the ball screw 3, and the partition 201 separates the servo motor 2 from the ball screw 3 to provide a limit for the descending stroke of the lifting slider 4, so as to prevent the lifting slider 4 from descending and overtravel and separating from the ball screw 3.

Referring to fig. 3, in this embodiment, a positioning hole 301 is formed in the top end of the inner frame of the frame 1, a positioning shaft 302 is installed at the top end of the ball screw 3, the cross sections of the positioning hole 301 and the positioning shaft 302 are both T-shaped, the positioning shaft 302 is rotatably installed in the positioning hole 301, and the positioning hole 301 and the positioning shaft 302 are arranged to ensure the stability of the ball screw 3 rotating in the frame 1, so that the stability of the lifting slider 4 in the lifting process is ensured.

Referring to fig. 3-4, in this embodiment, a ball nut flange hole 401 is formed in the lifting slider 4, the ball screw 3 is fitted in the ball nut flange hole 401, and a ball is contained in the ball nut flange hole 401, which is beneficial to fitting with the ball screw 3, so that the lifting slider 4 is more smooth when lifted, and the occurrence of the phenomenon of locking is prevented.

Referring to fig. 2 to 4, in this embodiment, the guide shaft 202 is installed on the partition board 201, the guide hole 402 is formed in the lifting slider 4, the guide shaft 202 is fitted in the guide hole 402, and the guide shaft 202 and the guide hole 402 are arranged to provide guidance for the lifting movement of the lifting slider 4 and limit the lifting movement, so as to prevent the lifting slider 4 from rotating synchronously due to the rotation of the ball screw 3 during the lifting process, thereby facilitating the movement of the lifting slider 4 in the vertical direction.

Referring to fig. 5-6, in this embodiment, a vertical lifting groove 501 is formed in the center of the lifting rail 5, the rotating shaft 6 is located in the lifting groove 501, a gear groove 502 is formed in the lifting rail 5, the gear groove 502 is communicated with a section of the lifting groove 501, the rack 8 and the gear 7 are both located in the gear groove 502, the lifting groove 501 provides a space for the lifting sliding and the rotation of the rotating shaft 6, the gear groove 502 provides a space for the lifting sliding and the rotation of the gear 7, and the sliding of the rack 8 during the height adjustment is facilitated.

Referring to fig. 5-7, in this embodiment, an adjustment groove 503 is formed in a side surface of the lifting rail 5, the adjustment groove 503 is communicated with the gear groove 502, the width of the adjustment groove 503 is smaller than that of the gear groove 502, two limit sliders 801 are slidably mounted in the adjustment groove 503, both the limit sliders 801 are mounted on the rack 8, an abdominal axis of the T-shaped connecting shaft 901 is located in the adjustment groove 503, a limit structure is formed by connection between the adjustment groove 503 and the gear groove 502 and connection between the T-shaped connecting shaft 901 and the rack 8, so that when the cam handle 9 rotates to be parallel to the lifting rail 5, the rack 8 is stably fixed on an inner wall of the gear groove 502 located on one side of the adjustment groove 503, and the cam handle 9 facing downward vertically effectively prevents the cam from rotating, thereby ensuring stability and firmness of the rack 8 in fixing, when the release height needs to be adjusted, the cam handle 9 is rotated to be perpendicular to the lifting rail 5, so that locking between the rack 8 and the inner wall of the gear groove 502 is released, the two limit sliders 801 inconveniently limit the moving direction of the rack 8, and effectively prevent the rack 8 from falling into the gear groove 502 during movement adjustment, and taking.

Referring to fig. 5 and 7, in this embodiment, an overturning groove 504 is formed in the lifting rail 5, the overturning groove 504 is communicated with one section of the lifting groove 501, the overturning groove 504 is parallel to the gear groove 502, the two clamping plates 12 are both slidably mounted in the overturning groove 504, the plurality of compression springs 13 are respectively and uniformly mounted on inner walls of two sides of the overturning groove 504, the overturning groove 504 provides a stressed surface for the compression springs 13, so that compression and rebound recovery of the compression springs 13 is realized, and a sliding space is provided for the clamping plates 12, when the gear 7 is meshed with the rack 8, due to the fixed position of the rack 8, the gear 7 rotates, the gear 7 drives the rotating shaft 6 to rotate, due to rotation of the rotating shaft 6, the connecting member 10 drives the roller 11 to perform circular motion with the rotating shaft as a circle center, at this time, the roller 11 pushes the clamping plates 12 away, the roller 11 and the connecting member 10 are located in the overturning groove 504, and the overturning groove 504 provides a rotating space for the connecting member 10 and the roller 11.

Referring to fig. 7, in this embodiment, a plurality of sliding holes 505 have all been seted up to the both sides of lift rail 5, equal slidable mounting has a slide axle 1201 in every slide hole 505, slide axle 1201 is located compression spring 13, a plurality of slide axle 1201 is respectively even to be installed on two splint 12, slide hole 505 and slide axle 1201's setting provides the direction for compression and the direction of recovering resilience of compression spring 13, prevent that the circular motion of connecting piece 10 and gyro wheel 11 from leading to splint 12 to drive compression spring 13 and form irregular elastic deformation, guaranteed compression spring 13's life.

Referring to fig. 7-8, in this embodiment, a spacer 902 is sleeved on an abdominal axis of the T-shaped connecting shaft 901, the spacer 902 is located between a cam of the cam handle 9 and the lifting rail 5, and the spacer 902 reduces a gap between the cam handle 9 and the lifting rail 5, so that a rotation range of the cam handle 9 on a wing axis of the T-shaped connecting shaft 901 when the rack 8 is fixed is reduced, efficiency of fixing the rack 8 is further improved, releasing height adjustment is more efficient, and the spacer 902 increases a stress surface of the adjusting groove 503, so that the cam of the cam handle 9 is more effectively contacted with an outer wall of the lifting rail 5 at the adjusting groove 503.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. A directional drop test apparatus with adjustable release height, comprising a frame (1), characterized in that: a servo motor (2) is arranged in the frame (1), a ball screw (3) is mounted on an output shaft of the servo motor (2), a lifting slider (4) is adapted on the ball screw (3), a lifting track (5) is arranged in the frame (1), a rotating shaft (6) is slidably mounted in the lifting track (5), the rotating shaft (6) is rotatably mounted in the lifting slider (4), a gear (7) is mounted on the rotating shaft (6), a rack (8) is slidably mounted in the lifting track (5), a T-shaped connecting shaft (901) is mounted on one side of the rack (8), two side wing shafts of the T-shaped connecting shaft (901) are rotatably mounted on the same cam handle (9), the other side of the rack (8) is meshed with the gear (7), connecting pieces (10) which are symmetrical in two sides are mounted on the rotating shaft (6), idler wheels (11) are rotatably mounted in the two connecting pieces (10), two clamp plates (12) are slidably mounted in the lifting track (5), the two idler wheels (11) are both located between the two clamp plates (12), a plurality of compression springs (13) are arranged in the lifting track (5), and a plurality of compression springs (13) are mounted on one end of the two clamp plates (12) respectively, and a supporting plate (14) is mounted on the rotating shaft (6), a material receiving frame (15) is installed in the frame (1), and the material receiving frame (15) is located below the supporting plate (14).

2. The adjustable release height directional drop test apparatus of claim 1, wherein: a partition plate (201) is installed on one side of the lifting rail (5), and the partition plate (201) is located between the servo motor (2) and the ball screw (3).

3. A release height adjustable directional drop test apparatus according to claim 1, wherein: locating hole (301) have been seted up on the inside casing top of frame (1), location axle (302) are installed on the top of ball screw (3), and the cross section of locating hole (301) and location axle (302) all is the T type, and location axle (302) rotate to be installed in locating hole (301).

4. The adjustable release height directional drop test apparatus of claim 1, wherein: a ball nut flange hole (401) is formed in the lifting slide block (4), and the ball screw (3) is matched in the ball nut flange hole (401).

5. A release height adjustable directional drop test apparatus according to claim 2, wherein: the partition plate (201) is provided with a guide shaft (202), the lifting slide block (4) is provided with a guide hole (402), and the guide shaft (202) is matched in the guide hole (402).

6. The adjustable release height directional drop test apparatus of claim 1, wherein: the lifting track is characterized in that a vertical lifting groove (501) is formed in the center of the lifting track (5), the rotating shaft (6) is located in the lifting groove (501), a gear groove (502) is formed in the lifting track (5), the gear groove (502) is communicated with one section of the lifting groove (501), and the rack (8) and the gear (7) are both located in the gear groove (502).

7. A release height adjustable directional drop test apparatus according to claim 1, wherein: the side surface of the lifting track (5) is provided with an adjusting groove (503), the adjusting groove (503) is communicated with a gear groove (502), the width of the adjusting groove (503) is smaller than that of the gear groove (502), two limiting slide blocks (801) are arranged in the adjusting groove (503) in a sliding mode, the two limiting slide blocks (801) are arranged on a rack (8), and a belly shaft of the T-shaped connecting shaft (901) is located in the adjusting groove (503).

8. A release height adjustable directional drop test apparatus according to claim 1, wherein: the lifting track (5) is provided with an overturning groove (504), the overturning groove (504) is communicated with one section of the lifting groove (501), the overturning groove (504) is parallel to a gear groove (502), two clamping plates (12) are arranged in the overturning groove (504) in a sliding mode, and a plurality of compression springs (13) are respectively and uniformly arranged on the inner walls of the two sides of the overturning groove (504).

9. A release height adjustable directional drop test apparatus according to claim 1, wherein: a plurality of slide holes (505) are formed in the two sides of the lifting rail (5), a slide shaft (1201) is installed in each slide hole (505) in a sliding mode, the slide shaft (1201) is located in a compression spring (13), and the slide shafts (1201) are respectively and uniformly installed on the two clamping plates (12).

10. The adjustable release height directional drop test apparatus of claim 1, wherein: a spacer (902) is sleeved at the belly shaft of the T-shaped connecting shaft (901), and the spacer (902) is positioned between the cam of the cam handle (9) and the lifting track (5).