A nitrogen spring reaction force waveform and extension speed measuring machine

Abstract

The present invention discloses a nitrogen spring reaction force waveform and extension speed measuring machine, including a measuring machine, the measuring machine including a frame and a testing mechanism built into the frame, the frame consisting of a profile frame, an electric box, a three-color lamp, an operating box, a start-stop button and a gas source processing triple piece, the electric box is installed on the back of the profile frame, the operating box is installed on one side of the profile frame, the three-color lamp is installed on the operating box, the start-stop button is installed on the front side of the profile frame, the gas source processing triple piece is installed at the lower end of the profile frame, and the electric box, the three-color lamp, the operating box, the start-stop button and the gas source processing triple piece are connected to the testing mechanism through a line. The present invention designs a device specifically used for measuring the reaction force waveform and extension speed of a nitrogen spring, which can not only achieve the reaction force waveform test of the nitrogen spring, but also the device can measure the extension speed in a certain T1 and T2 time period when the nitrogen spring is naturally extended, thereby improving the functionality and practicality of the measuring device.

Description

Technical Field

[0001] The invention relates to the technical field of nitrogen spring measuring equipment, in particular to a nitrogen spring reaction force waveform and extension speed measuring machine. Background Art

[0002] Nitrogen spring is a new type of elastic component with high-pressure nitrogen as the working medium. It is small in size, large in elasticity, long in stroke, stable in operation, precisely manufactured, long in service life (one million times), with a gentle elasticity curve, and no need for pre-tightening, etc. It can perform tasks that are difficult to accomplish with conventional elastic components such as metal springs, rubber and air cushions, simplify mold design and manufacturing, facilitate mold installation and adjustment, extend mold service life, and ensure stable product quality. It can also be designed into a nitrogen spring system and work as part of the mold. It can easily achieve constant pressure and delayed action in the system. It is a new generation of the most ideal elastic component with flexible performance. Nitrogen springs need to be inspected after production, and the reaction force and extension speed of nitrogen springs are two important indicators for detecting nitrogen springs.

[0003] However, the existing nitrogen spring measuring equipment has the following problems during use: (1) The existing nitrogen spring measuring equipment has a complex structure and relatively simple functionality. It generally only has the function of measuring the reaction force waveform of the nitrogen spring, lacks the means and mechanism for measuring the extension speed of the nitrogen spring, and cannot meet the measurement needs; (2) The existing nitrogen spring requires the assistance of staff to operate during the measurement process, has a low degree of automation, and has deviations in the measurement structure. Therefore, it is necessary to design corresponding technical solutions to solve the existing technical problems. Summary of the invention

[0004] The purpose of the present invention is to provide a nitrogen spring reaction force waveform and extension speed measuring machine, which solves the technical problem that the existing nitrogen spring measuring equipment has a complex structure and relatively single functionality, generally only has the function of measuring the reaction force waveform of the nitrogen spring, lacks the means and mechanism for measuring the extension speed of the nitrogen spring, and cannot meet the measurement needs.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a nitrogen spring reaction force waveform and extension speed measuring machine, comprising a measuring machine, the measuring machine comprising a frame and a testing mechanism built into the frame, the frame consisting of a profile frame, an electric box, a three-color lamp, an operating box, a start-stop button and an air source processing triplet, the electric box is installed on the back of the profile frame, the operating box is installed on one side of the profile frame, the three-color lamp is installed on the operating box, the start-stop button is installed on the front side of the profile frame, the air source processing triplet is installed at the lower end of the profile frame, the electric box, the three-color lamp, the operating box, the start-stop button and the air source processing triplet are connected to the testing mechanism through a circuit, and the testing mechanism comprises a top plate installed on the top of the profile frame and a A servo motor, three groups of guide columns are vertically installed at the lower end of the top plate, the three groups of guide columns are located inside the profile frame and the bottom is fixed to the profile frame by bolts, a ball screw is vertically installed at the power output end of the servo motor, the ball screw is located between the three groups of guide columns, the ball screw and the three groups of guide columns are movably interspersed with a support plate and a movable plate from top to bottom, the support plate is installed with a fixed block and a linear bearing is provided at the connection with the guide column, two groups of spring plungers are arranged directly above the fixed block, the two groups of spring plungers are located at the bottom of the top plate and a clamping cylinder is arranged on the outside, the power output end of the clamping cylinder is connected to the spring plunger, a pressure sensor is installed on the upper surface of the movable plate and a rotary clamping cylinder is also installed at the bottom.

[0006] As a preferred embodiment of the present invention, sprockets are provided on both sides of the servo motor, the sprockets are movably mounted on the top plate and are meshedly connected with chains on the surface, one end of two groups of chains pass through the top plate and are connected to the support plate, and a counterweight block is installed at the other end of one group of chains.

[0007] As a preferred embodiment of the present invention, an encoder is provided on one side of one group of sprockets, and a reading end of the encoder is connected to the sprocket.

[0008] As a preferred embodiment of the present invention, the sum of the weights of the support plate, the linear bearing and the fixed block is equal to the weight of the counterweight.

[0009] As a preferred embodiment of the present invention, a proximity sensor is further installed below the top plate, and a detection end of the proximity sensor is located at one side of the spring plunger.

[0010] As a preferred embodiment of the present invention, the electric box, the three-color light, the operating box and the start / stop button are connected to the servo motor via a circuit.

[0011] As a preferred embodiment of the present invention, the lower end of the rotary clamping cylinder is fixed to the movable plate and the power output end is connected to the support plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This scheme designs a device specifically used to measure the reaction force waveform and extension speed of nitrogen springs. It can not only test the reaction force waveform of nitrogen springs, but also measure the extension speed during a certain T1 and T2 time period when the nitrogen spring is naturally extended, thereby improving the functionality and practicality of the measuring device.

[0014] 2. The nitrogen spring measuring equipment designed in this scheme can not only measure the reaction force waveform when the nitrogen spring is compressed, but also measure the speed when the nitrogen spring is extended. The device has a high degree of automation and a simple structure, which saves equipment costs and labor costs. In addition, a counterweight mechanism is designed on the equipment to improve the accuracy of the nitrogen spring measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall structure diagram of the present invention;

[0016] Figure 2 This is the framework structure diagram of the present invention;

[0017] Figure 3 This is a structural diagram of the testing mechanism of the present invention;

[0018] Figure 4 It is a side view of the testing mechanism of the present invention;

[0019] Figure 5 This is a front view of the testing mechanism of the present invention.

[0020] In the figure: 1. frame; 2. test mechanism; 3. profile frame; 4. electric box; 5. three-color light; 6. operation box; 7. start-stop button; 8. air source treatment triplex; 9. top plate; 10. servo motor; 11. guide column; 12. ball screw; 13. support plate; 14. movable plate; 15. fixed block; 16. linear bearing; 17. spring plunger; 18. clamping cylinder; 19. pressure sensor; 20. rotary clamping cylinder; 21. sprocket; 22. chain; 23. counterweight; 24. encoder; 25. proximity sensor. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-5The present invention provides a technical solution: a nitrogen spring reaction force waveform and extension speed measuring machine, including a measuring machine, the measuring machine includes a frame 1 and a test mechanism 2 built into the frame 1, the frame 1 is composed of a profile frame 3, an electric box 4, a three-color lamp 5, an operating box 6, a start-stop button 7 and an air source processing triplet 8, the electric box 4 is installed on the back of the profile frame 3, the operating box 6 is installed on one side of the profile frame 3, the three-color lamp 5 is installed on the operating box 6, the start-stop button 7 is installed on the front side of the profile frame 3, the air source processing triplet 8 is installed on the lower end of the profile frame 3, the electric box 4, the three-color lamp 5, the operating box 6, the start-stop button 7 and the air source processing triplet 8 are connected to the test mechanism 2 through a line, the test mechanism 2 includes a top plate 9 installed on the top of the profile frame 3 and a servo motor 10 installed on the top plate 9, the lower end of the top plate 9 Three groups of guide columns 11 are vertically installed, the three groups of guide columns 11 are located inside the profile frame 3 and the bottom is fixed to the profile frame 3 by bolts, a ball screw 12 is vertically installed at the power output end of the servo motor 10, the ball screw 12 is located between the three groups of guide columns 11, the ball screw 12 and the three groups of guide columns 11 are movably interspersed with a support plate 13 and a movable plate 14 from top to bottom, the support plate 13 is installed with a fixed block 15 and a linear bearing 16 is provided at the connection with the guide column 11, two groups of spring plungers 17 are arranged directly above the fixed block 15, the two groups of spring plungers 17 are located at the bottom of the top plate 9 and a clamping cylinder 18 is arranged on the outside, the power output end of the clamping cylinder 18 is connected to the spring plunger 17, a pressure sensor 19 is installed on the upper surface of the movable plate 14 and a rotary clamping cylinder 20 is also installed at the bottom.

[0023] Further improvement, such as Figure 3 As shown: sprockets 21 are provided on both sides of the servo motor 10, the sprockets 21 are movably mounted on the top plate 9 and are meshedly connected with chains 22 on the surface, one end of the two sets of chains 22 pass through the top plate 9 and are connected to the support plate 13, and a counterweight block 23 is installed at the other end of one set of chains 22.

[0024] Further improvement, such as Figure 3 As shown: an encoder 24 is provided on one side of one group of sprocket wheels 21, and a reading end of the encoder 24 is connected to the sprocket wheel 21. The encoder 24 reads the rotation angle of the sprocket wheel 21, thereby converting the downward displacement of the support plate 13.

[0025] Further improvement, such as Figure 3 As shown: the sum of the weights of the support plate 13, the linear bearing 16 and the fixed block 15 is equal to the weight of the counterweight 23, thereby improving the accuracy of the detection result.

[0026] Further improvement, such as Figure 5 As shown: a proximity sensor 25 is also installed below the top plate 9, and the detection end of the proximity sensor 25 is located on one side of the spring plunger 17. The proximity sensor 25 detects the presence of a product and starts subsequent operations.

[0027] Further improvement, such as Figure 1 As shown: the electric box 4, the three-color lamp 5, the operation box 6 and the start-stop button 7 are connected to the servo motor 10 through lines.

[0028] Specifically, the lower end of the rotary clamping cylinder 20 is fixed on the movable plate 14 and the power output end is connected to the support plate 13 , so that the support plate 13 and the movable plate 14 can be clamped and separated by the rotary clamping cylinder 20 .

[0029] When in use: The present invention is operated as follows when measuring:

[0030] Step 1: Manually place the nitrogen spring into the fixed fixture, and the fixed end of the nitrogen spring is stuck in the two spring plungers 17 to prevent the nitrogen spring from tilting; the movable end of the nitrogen spring is supported in the fixed block 15 on the support plate 13;

[0031] Step 2: Manually start the start button on the frame 1, the proximity sensor 25 detects the presence of products, the two clamping cylinders 18 clamp the nitrogen springs, and at the same time the rotary clamping cylinder 20 on the movable plate 14 rises to release the support plate 13 and rotates 90° to separate the movable plate 14 from the support plate 13;

[0032] Step 3: The servo motor 10 rotates to raise the movable plate 14 and the support plate 13 at the same time. At this time, as the servo motor 10 rotates, the nitrogen spring is compressed, and the pressure of the pressure sensor 19 between the movable plate 14 and the support plate 13 also changes with time, thereby measuring a waveform of the force changing with time when the nitrogen spring is compressed;

[0033] Step 4: The servo motor 10 quickly reverses, and the movable plate 14 quickly drops to a certain position, so that the movable plate 14 is separated from the support plate 13;

[0034] Step 5: The nitrogen spring extends, the support plate 13 descends, and then the chain 22 drives the sprocket 21 to rotate, and the encoder 24 reads the rotation angle of the sprocket 21, thereby converting the displacement of the support plate 13 to descend; as the nitrogen spring extends, the waveform of the displacement of the nitrogen spring changing with time is measured, and then the extension speed of the nitrogen spring is calculated in a certain time period T1 and T2;

[0035] Step 6: The support plate 13 descends to a certain position, and the rotary clamping cylinder 20 on the movable plate 14 rotates 90° and descends, thereby clamping the support plate 13. The movable plate 14 continues to drive the support plate 13 to descend a certain distance, and then the clamping cylinder 18 retracts to release the nitrogen spring, and the nitrogen spring is manually taken out, and the test is completed.

[0036] Note: The air source processing triplex 8 adopts the GC300-08 model; the clamping cylinder 18 adopts the MHZ2-10D model; the pressure sensor 19 adopts the BF350R-3AA model; 20. The rotary clamping cylinder adopts the MKB40 model; 24. The encoder adopts the BCM58S10 model; 25. The proximity sensor adopts the E2B model.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A nitrogen spring reaction force waveform and extension speed measuring machine, comprising a measuring machine, characterized in that: The measuring machine comprises a frame (1) and a testing mechanism (2) built into the frame (1); the frame (1) is composed of a profile frame (3), an electric box (4), a three-color lamp (5), an operating box (6), a start-stop button (7) and an air source processing triplet (8); the electric box (4) is mounted on the back of the profile frame (3); the operating box (6) is mounted on one side of the profile frame (3); the three-color lamp (5) is mounted on the operating box (6); the start-stop button (7) is mounted The air source processing triplet (8) is installed on the front side of the profile outer frame (3), and the air source processing triplet (8) is installed on the lower end of the profile outer frame (3). The electric box (4), the three-color light (5), the operation box (6), the start / stop button (7) and the air source processing triplet (8) are connected to the test mechanism (2) through a line. The test mechanism (2) includes a top plate (9) installed on the top of the profile outer frame (3) and a servo motor (10) installed on the top plate (9). The lower end of the top plate (9) is vertically installed with three groups of guide columns ( 11), the three groups of guide columns (11) are located inside the profile outer frame (3) and the bottom is fixed to the profile outer frame (3) by bolts, the power output end of the servo motor (10) is vertically installed with a ball screw (12), the ball screw (12) is located between the three groups of guide columns (11), the ball screw (12) and the three groups of guide columns (11) are movably interspersed with a support plate (13) and a movable plate (14) from top to bottom, and the support plate (13) is installed with a fixed block (15 ) and a linear bearing (16) is provided at the connection with the guide column (11), two groups of spring plungers (17) are provided directly above the fixed block (15), the two groups of spring plungers (17) are located at the bottom of the top plate (9) and a clamping cylinder (18) is provided on the outside, the power output end of the clamping cylinder (18) is connected to the spring plunger (17), a pressure sensor (19) is installed on the upper surface of the movable plate (14) and a rotary clamping cylinder (20) is also installed at the bottom.

2. A nitrogen spring reaction force waveform and extension speed measuring machine according to claim 1, characterized in that: Sprockets (21) are provided on both sides of the servo motor (10). The sprockets (21) are movably mounted on the top plate (9) and are meshedly connected with chains (22) on their surfaces. One end of two groups of the chains (22) pass through the top plate (9) and are connected to the support plate (13). A counterweight (23) is installed at the other end of one group of the chains (22).

3. A nitrogen spring reaction force waveform and extension speed measuring machine according to claim 2, characterized in that: An encoder (24) is provided on one side of one group of the sprocket wheels (21), and a reading end of the encoder (24) is connected to the sprocket wheel (21).

4. A nitrogen spring reaction force waveform and extension speed measuring machine according to claim 2, characterized in that: The sum of the weights of the support plate (13), the linear bearing (16) and the fixed block (15) is equal to the weight of the counterweight block (23).

5. A nitrogen spring reaction force waveform and extension speed measuring machine according to claim 2, characterized in that: A proximity sensor (25) is also installed below the top plate (9), and a detection end of the proximity sensor (25) is located on one side of the spring plunger (17).

6. A nitrogen spring reaction force waveform and extension speed measuring machine according to claim 1, characterized in that: The electric box (4), the three-color lamp (5), the operating box (6) and the start / stop button (7) are connected to the servo motor (10) through a circuit.

7. A nitrogen spring reaction force waveform and extension speed measuring machine according to claim 1, characterized in that: The lower end of the rotary clamping cylinder (20) is fixed on the movable plate (14) and the power output end is connected to the support plate (13).

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