CN219084636U

CN219084636U - Pressure testing machine

Info

Publication number: CN219084636U
Application number: CN202223523541.1U
Authority: CN
Inventors: 王文君
Original assignee: Tangshan Hongtong Malleable Cast Iron Co ltd
Current assignee: Tangshan Hongtong Malleable Cast Iron Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-05-26
Anticipated expiration: 2032-12-28

Abstract

The utility model relates to the field of industrial testing machines and discloses a pressure testing machine, which comprises a testing table, wherein two groups of upright posts are fixedly arranged at the middle points of two sides of the outer wall of the top of the testing table, a center plate is fixedly arranged at the center of the outer wall of the top of the testing table, a high-precision pressure sensor is embedded in the center plate, a stamping mechanism is arranged right above the center plate between the two groups of upright posts, a control panel is arranged on one group of upright posts, a limiting and fixing device is arranged on the side surface of the testing table corresponding to the center plate, the pressure testing machine can limit and fix a mobile phone shell, the accuracy of data is guaranteed, and meanwhile, the mobile phone shells with different sizes are tested through the adjustable limiting and fixing device, so that the applicability of the pressure testing machine is improved.

Description

Pressure testing machine

Technical Field

The utility model relates to the field of industrial testing machines, in particular to a pressure testing machine.

Background

At present, in the field of mobile phone manufacturing, a mobile phone shell is used as a part for mobile phone protection, the strength of the mobile phone shell is one of important indexes of the mobile phone strength, and at present, when the strength of the mobile phone shell is detected, the pressure test device of the existing mobile phone shell is used for carrying out pressure test on the mobile phone shell, the existing pressure test device of the mobile phone shell is easy to deviate when the mobile phone shell is in contact with a stamping head, so that the accuracy of a pressure test result is affected, and although part of the existing pressure test device is provided with a clamping mechanism, the clamping fixing device cannot clamp and fix the mobile phone shells with different sizes according to the size of the mobile phone shell, so that the applicability is low, and the detection requirement cannot be met.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a pressure testing machine, which solves the problems.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the pressure testing machine comprises a testing table, two groups of upright posts are fixedly arranged at the middle points of two sides of the outer wall of the top of the testing table, a central disc is fixedly arranged at the center of the outer wall of the top of the testing table, a high-precision pressure sensor is embedded in the central disc, a stamping mechanism is arranged right above the central disc corresponding to the two groups of upright posts, a control panel is arranged on one group of upright posts, and a limiting and fixing device is arranged on the side face of the testing table corresponding to the central disc.

Preferably, the stamping mechanism comprises a movable cross beam, a stamping disc and an electric cylinder, wherein two groups of upright posts are close to each other and are provided with vertical grooves on the side walls, the two groups of upright posts are connected with the movable cross beam in a sliding clamping manner through the vertical grooves, the center of the bottom of the movable cross beam is provided with a displacement mechanism, the movable cross beam is connected with the stamping disc through the displacement mechanism, the vertical grooves of the upright posts are internally provided with the electric cylinder fixedly connected with one end of the movable cross beam, and the electric cylinder is electrically connected with the control panel.

Preferably, the displacement mechanism comprises a screw rod rotating shaft, a movable connecting column and a servo motor, two groups of installation risers which are symmetrical about a middle point are fixedly arranged on the outer wall of the bottom of the movable cross beam, the screw rod rotating shaft is rotatably arranged between the centers of the side walls of the installation risers which are close to each other, the servo motor is fixedly arranged on the side wall of one group of installation risers, an output shaft of the servo motor penetrates through the outer wall of the installation riser and is fixedly connected with the screw rod rotating shaft, the movable connecting column is sleeved on the screw rod rotating shaft through threads, and the punching plate is fixedly connected with the bottom end of the movable connecting column.

Preferably, the top end of the movable connecting column is attached to the bottom of the movable cross beam.

Preferably, the limiting and fixing device comprises a gripper box, a transverse moving plate, a gripper plate, a micro motor and a gear, wherein the upper half part of the gripper box is provided with a cavity, rectangular through grooves are formed in the outer walls of two sides of the gripper box corresponding to two ends of the cavity, the two groups of rectangular through grooves are symmetrical about the center, the gear is rotatably arranged in the center of the inner wall of the bottom of the corresponding cavity in the gripper box, the micro motor is fixedly arranged on the outer wall of the top of the gripper box, an output shaft of the micro motor extends into the cavity and is fixedly connected with the gear, two groups of transverse moving plates which are symmetrical about the center are inserted into the gripper box, the two groups of transverse moving plates extend out through the rectangular through grooves on two sides of the gripper box, wheel tooth grooves are formed in the two groups of transverse moving plates and meshed with the gear, and the two groups of transverse moving plates extend out of the two ends of the gripper box.

Preferably, the two groups of the gripper plates are respectively positioned at two sides of the central disc and perpendicular to the transverse moving plates, the bottoms of the gripper plates are flush with the top of the central disc, and the two groups of the gripper plates are fixedly provided with rubber gaskets on the side walls close to each other.

Preferably, the side inner walls of the two groups of rectangular through grooves are respectively flush with the opposite side inner walls in the cavity, the two groups of transverse moving plates are attached to the opposite side inner walls in the cavity, limiting plates are fixedly mounted on the bottom inner walls of the cavity corresponding to the bottom side edges of the two groups of rectangular through grooves, and the limiting plates are attached to the side outer walls of the transverse moving plates.

Preferably, a semicircular seat is fixedly arranged on one side, away from the central disc, of the outer wall of the top of the test bench, a threaded screw rod in threaded connection with the gripper box is rotatably arranged on the semicircular seat, and a knob is fixedly arranged on the end face of the outer side of the semicircular seat in an extending mode.

(III) beneficial effects

Compared with the prior art, the utility model provides a pressure testing machine, which has the following beneficial effects:

1. this pressure testing machine, the limit fixing device that sets up through the side of center dish carries out limit fixing to the cell phone case of placing at center dish and aligning with center dish center, guarantees the precision of data.

2. This pressure testing machine rotates threaded screw through the knob, can cause the tongs box whole to carry out rectilinear movement according to the lead screw principle, laminates tongs box side and cell-phone shell lateral wall, tests not cell-phone shell of equidimension, can make the side outer wall of tongs box come the cell-phone shell side of laminating equidimension not through the displaceability of tongs box, and through separable or the tongs board that is close to, can laminate the cell-phone shell both ends of equidimension not, improves the suitability of this pressure testing machine.

3. According to the pressure testing machine, the stamping disc can be driven to transversely move left and right through the displacement mechanism at the bottom of the movable cross beam, so that the device can perform multi-point pressure testing on the fixed mobile phone shell, and the strength testing device of the existing mobile phone shell can only perform strength detection on one point of the mobile phone shell to a certain extent, has one-sided performance and cannot improve the condition that multiple points of the same sample of the mobile phone shell are detected.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a limiting and fixing device according to the present utility model;

FIG. 3 is an enlarged schematic view of a portion of FIG. 1;

FIG. 4 is a schematic diagram of a displacement mechanism according to the present utility model.

In the figure: 1. a test bench; 2. a vertical column; 3. a center plate; 4. a limit fixing device; 5. a control panel; 6. a movable cross beam; 7. punching a disc; 8. an electric cylinder; 9. a gripper box; 10. a cavity; 11. rectangular through grooves; 12. a transverse moving plate; 13. a grip plate; 14. a rubber gasket; 15. a micro motor; 16. a gear; 17. a limiting plate; 18. a semicircular seat; 19. a threaded screw rod; 20. a knob; 21. a displacement mechanism; 22. installing a vertical plate; 23. a screw rod rotating shaft; 24. moving the connecting column; 25. a servo motor.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the pressure testing machine comprises a testing table 1, two groups of vertical columns 2 are fixedly installed at the middle points of two sides of the outer wall of the top of the testing table 1, a center disc 3 is fixedly installed at the center of the outer wall of the top of the testing table 1, a high-precision pressure sensor is embedded in the center disc 3, a stamping mechanism is arranged right above the center disc 3 between the two groups of vertical columns 2, a control panel 5 is installed on one group of vertical columns 2, a limit fixing device 4 is arranged on the side face of the testing table 1 corresponding to the center disc 3, the pressure sensor is of a DRC-13 type, and the pressure sensor is electrically connected with the control panel 5.

The stamping mechanism comprises a movable cross beam 6, a stamping disc 7 and an electric cylinder 8, wherein two groups of vertical columns 2 are close to each other, vertical grooves are formed in the side walls of the two groups of vertical columns 2, the two groups of vertical columns 2 are connected with the movable cross beam 6 in a sliding clamping manner through the vertical grooves, a displacement mechanism 21 is arranged at the center of the bottom of the movable cross beam 6, the movable cross beam 6 is connected with the stamping disc 7 through the displacement mechanism 21, the electric cylinder 8 fixedly connected with one end of the movable cross beam 6 is arranged in the vertical grooves of the vertical columns 2, and the electric cylinder 8 is electrically connected with the control panel 5.

The displacement mechanism 21 comprises a screw rod rotating shaft 23, a movable connecting column 24 and a servo motor 25, two groups of installation risers 22 which are symmetrical about a middle point are fixedly arranged on the outer wall of the bottom of the movable cross beam 6, the screw rod rotating shaft 23 is rotatably arranged between the centers of the side walls of the two groups of installation risers 22 which are close to each other, the servo motor 25 is fixedly arranged on the side wall of one group of installation risers 22, an output shaft of the servo motor 25 penetrates through the outer wall of the installation riser 22 and is fixedly connected with the screw rod rotating shaft 23, the movable connecting column 24 is sleeved on the screw rod rotating shaft 23 in a threaded manner, and the punching disc 7 is fixedly connected with the bottom end of the movable connecting column 24.

The top of the movable connecting column 24 is attached to the bottom of the movable cross beam 6, so that the movable connecting column 24 is limited, the movable connecting column 24 is guaranteed to transversely move to be attached to the bottom of the movable cross beam 6, and the movable connecting column 24 is not inclined when the screw rod rotating shaft 23 rotates.

The limiting and fixing device 4 comprises a hand grip box 9, a transverse moving plate 12, a hand grip plate 13, a micro motor 15 and a gear 16, wherein a cavity 10 is formed in the upper half part of the hand grip box 9, rectangular through grooves 11 are formed in the outer walls of the two sides of the hand grip box 9 corresponding to the two ends of the cavity 10, the two groups of rectangular through grooves 11 are symmetrical about the center, the gear 16 is rotatably arranged in the center of the inner wall of the hand grip box 9 corresponding to the bottom of the cavity 10, the micro motor 15 is fixedly arranged on the outer wall of the top of the hand grip box 9, an output shaft of the micro motor 15 extends into the cavity 10 and is fixedly connected with the gear 16, two groups of transverse moving plates 12 which are symmetrical about the center are inserted into the hand grip box 9, the two groups of transverse moving plates 12 are respectively extended out through the rectangular through grooves 11 on the two sides of the hand grip box 9, wheel tooth grooves are formed in the two groups of transverse moving plates 12 and meshed with the gear 16 through the wheel tooth grooves, the two groups of transverse moving plates 12 are fixedly connected with the hand grip plate 13 at the two ends of the hand grip box 9, the micro motor 15 is electrically connected with the control panel 5, the gear 16 is driven by the micro motor 15 to rotate, and the two groups of transverse moving plates 12 meshed with the gear 16 are driven by the micro motor 15 to move relatively or can move relatively or be close to each other.

Two sets of tongs plates 13 are located the both sides of center dish 3 respectively and perpendicular with sideslip board 12, and the bottom of tongs plate 13 flushes with the top of center dish 3, guarantees to carry out spacing fixedly to the cell phone case on the center dish 3 of placing, and equal fixed mounting has rubber gasket 14 on two sets of tongs plates 13 are close to the lateral wall each other, can prevent the hard contact of the cell phone case of tongs plate 13, avoids causing the damage to cell phone case.

The side inner walls of the two groups of rectangular through grooves 11 are respectively flush with the opposite side inner walls in the cavity 10, the two groups of transverse moving plates 12 are attached to the opposite side inner walls in the cavity 10, limiting plates 17 are fixedly mounted on the bottom inner walls of the cavity 10 corresponding to the bottom side edges of the two groups of rectangular through grooves 11, the limiting plates 17 are attached to the side outer walls of the transverse moving plates 12, the transverse moving plates 12 are always attached to the inner walls of the cavity 10 and the limiting plates 17, and a limiting effect is achieved on movement of the transverse moving plates 12 so that the transverse moving plates 12 are always linearly displaced.

The side of the outer wall of the top of the test bench 1, which is opposite to the center plate 3, is fixedly provided with a semicircular seat 18, a threaded screw rod 19 in threaded connection with the grip box 9 is rotatably arranged on the semicircular seat 18, a knob 20 is fixedly arranged on the outer side end surface of the semicircular seat 18 in an extending manner, the threaded screw rod 19 is rotated through the knob 20, the grip box 9 can be caused to move linearly integrally according to the screw rod principle, the side surface of the grip box 9 is attached to the side wall of the mobile phone shell, the mobile phone shell with different sizes is tested, and the side surface outer wall of the grip box 9 can be attached to the side surface of the mobile phone shell with different sizes through the displaceability of the grip box 9.

Working principle: placing the mobile phone shell on the center plate 3, aligning the center of the mobile phone shell with the center plate 3, rotating a threaded screw rod 19 through a knob 20, enabling the whole of the hand grip box 9 to move linearly according to the screw rod principle, attaching the side surfaces of the hand grip box 9 to the side walls of the mobile phone shell, testing the mobile phone shells with different sizes, and enabling the side outer walls of the hand grip box 9 to be attached to the side surfaces of the mobile phone shells with different sizes through the displaceability of the hand grip box 9; after the side surfaces of the hand grip boxes 9 are attached to the mobile phone shells, the hand grip plates 13 in the limiting and fixing device 4 are respectively positioned at two ends of the mobile phone shells, then the brake micro motor 15 drives the gears 16 to rotate, so that two groups of transverse moving plates 12 meshed with the gears 16 drive the hand grip plates 13 to perform relative motion, the hand grip plates can be separated or approach each other, the transverse moving plates 12 are always attached to the inner wall of the cavity 10 and the limiting plate 17, the movement of the transverse moving plates 12 is limited to ensure that the transverse moving plates 12 always perform linear displacement, during testing, the two groups of transverse moving plates 12 drive the two groups of hand grip plates 13 to be mutually close to attach to two ends of the mobile phone shells, and therefore, the mobile phone shells which are placed under the center disc 3 and aligned with the center of the center disc 3 are limited and fixed, at the moment, the stamping disc 7 under the driving of the movable cross beam 6 by the electric cylinder 8 is pressed down to complete pressure testing, and the detection data are displayed on the control panel 5, and at the moment, the servo motor 25 drives the rotating shaft 23 to rotate, and the rotating shaft 23 according to the screw rod, the rotation of the rotating shaft 23 can cause the rotating of the rotating shaft to move the platen 24 to move, the pressing plate 24 to perform linear punching motion, so that the mobile phone shells can perform the test on the mobile phone shells with a plurality of points, and the same strength can be tested, and the mobile phone shells can have a certain degree of strength, and the mobile phone shells can be tested by a certain degree, and the strength, and the mobile phone shells can be tested; the pressure testing machine can perform pressure testing on the mobile phone shell to limit and fix, ensure the accuracy of data, and simultaneously test the mobile phone shells with different sizes through the adjustable limiting and fixing device 4, so that the applicability of the pressure testing machine is improved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The pressure testing machine comprises a testing table (1), and is characterized in that: two groups of upright posts (2) are fixedly arranged at the middle points of two sides of the top outer wall of the test bench (1), a center disc (3) is fixedly arranged at the center of the top outer wall of the test bench (1), a high-precision pressure sensor is embedded in the center disc (3), a stamping mechanism is arranged right above the corresponding center disc (3) between the two groups of upright posts (2), a control panel (5) is arranged on the group of upright posts (2), and a limit fixing device (4) is arranged on the side face, corresponding to the center disc (3), of the test bench (1).

2. The pressure tester of claim 1, wherein: the stamping mechanism comprises a movable cross beam (6), a stamping disc (7) and an electric cylinder (8), wherein two groups of upright posts (2) are respectively provided with a vertical groove on the side wall, the two groups of upright posts (2) are connected with the movable cross beam (6) through the vertical grooves in a sliding clamping manner, the center of the bottom of the movable cross beam (6) is provided with a displacement mechanism (21), the movable cross beam (6) is connected with the stamping disc (7) through the displacement mechanism (21), and the electric cylinder (8) fixedly connected with one end of the movable cross beam (6) is arranged in the vertical grooves of the upright posts (2).

3. The pressure tester of claim 2, wherein: the displacement mechanism (21) comprises a screw rod rotating shaft (23), a movable connecting column (24) and a servo motor (25), two groups of installation risers (22) which are symmetrical about a middle point are fixedly arranged on the outer wall of the bottom of the movable cross beam (6), the screw rod rotating shaft (23) is rotatably arranged between the centers of the side walls of the installation risers (22) which are close to each other, the servo motor (25) is fixedly arranged on the side wall of one group of installation risers (22), an output shaft of the servo motor (25) penetrates through the outer wall of the installation riser (22) and is fixedly connected with the screw rod rotating shaft (23), the movable connecting column (24) is sleeved on the screw rod rotating shaft (23) through threads, and the bottom end of the movable connecting column (24) is fixedly connected with the punching disc (7).

4. A pressure tester as claimed in claim 3, wherein: the top end of the movable connecting column (24) is attached to the bottom of the movable cross beam (6).

5. The pressure tester of claim 1, wherein: limiting fixing device (4) are including tongs box (9), sideslip board (12), tongs board (13), micro motor (15) and gear (16), cavity (10) have been seted up to the first half of tongs box (9), rectangle through groove (11) have been seted up to the both sides outer wall at tongs box (9) corresponding cavity (10) both ends, and two sets of rectangle through groove (11) are with respect to central symmetry, gear (16) are installed in the rotation of correspondence cavity (10) bottom inner wall center department in tongs box (9), the top outer wall fixed mounting of tongs box (9) has micro motor (15), and the output shaft of micro motor (15) extends to in cavity (10) with gear (16) fixed connection, peg graft in tongs box (9) have two sets of sideslip boards (12) about central symmetry, and two sets of sideslip boards (12) are respectively through rectangle through groove (11) of tongs box (9) both sides and are stretched out, set up on two sets of sideslip boards (12) and are through wheel tooth groove and gear groove (16), both sides (13) are connected with tongs box (12).

6. The pressure tester of claim 5, wherein: two sets of tongs boards (13) are located the both sides of central dish (3) respectively and perpendicular with sideslip board (12), the bottom of tongs board (13) flushes with the top of central dish (3), and two sets of tongs board (13) are close to each other and all fixed mounting has rubber gasket (14) on the lateral wall.

7. The pressure tester of claim 5, wherein: the side inner walls of the two groups of rectangular through grooves (11) are respectively flush with the opposite side inner walls in the cavity (10), the two groups of transverse moving plates (12) are attached to the opposite side inner walls in the cavity (10), limiting plates (17) are fixedly mounted on the bottom inner walls of the cavity (10) corresponding to the bottom side edges of the two groups of rectangular through grooves (11), and the limiting plates (17) are attached to the side outer walls of the transverse moving plates (12).

8. The pressure tester of claim 5, wherein: the testing bench is characterized in that a semicircular seat (18) is fixedly arranged on one side, away from the central disc (3), of the outer wall of the top of the testing bench (1) corresponding to the gripper box (9), a threaded screw rod (19) in threaded connection with the gripper box (9) is rotatably arranged on the semicircular seat (18), and a knob (20) is fixedly arranged on the outer side end face of the semicircular seat (18) in an extending mode.