A device for detecting the rebound force of shot blasting machine projectiles

Abstract

The present invention discloses a device for detecting the rebound force of a shot blasting machine projectile, and relates to the technical field of shot blasting machine detection devices. The detection device comprises: a support frame; a detection component, which is installed at the front end of the support frame; wherein the detection component comprises a bottom plate and a top plate which are parallel to each other, and the bottom plate and the top plate are connected by a spring, and a pressure sensor is connected between the bottom plate and the support frame; a turntable is movably installed on the top of the bottom plate, and a support rod is installed on the top of the turntable, and the turntable is driven to rotate by a motor installed at the bottom of the bottom plate. The device for detecting the rebound force of a shot blasting machine projectile described in the present invention adopts a rotatable turntable to drive the support rod to rotate to adjust the connection between the bottom plate and the top plate, so it effectively solves the technical problem of the single detection function of the existing device for detecting the force of the projectile of the shot blasting machine when in use, and then detects the impact force and rebound force of the projectile.

Description

Technical Field

[0001] The invention relates to the technical field of shot blasting machine detection equipment, and in particular to a device for detecting the rebound force of a shot blasting machine projectile. Background Art

[0002] Shot blasting machine is a mechanical equipment that uses a high-speed rotating impeller to throw out shots and sand, which hit the surface of parts at high speed to meet the requirements of surface treatment. The treated shots and sand have improved metal wear resistance, corrosion resistance, and aesthetics, while enhancing the adhesion and uniformity of the spraying. Different metal workpieces have different processing standards, which requires knowing the parameters such as the ejection force, injection angle, ejection speed, and ejection time of different shot blasting machines and different projectiles to achieve high-efficiency ejection. The projectile ejection angle and speed are important parameters for the ejection effect. Therefore, it is very important to obtain the ejection angle and speed of the shot blasting machine at different speeds and different projectiles.

[0003] At present, when the existing shot blasting machine projectile force detection device is used, an elastic substrate is attached to the arc-shaped pressure strain gauge, and the substrate is fixed to the flat plate of the scale body, and is always perpendicular to the flat plate of the scale body; because the elastic substrate is always perpendicular to the flat plate of the scale body, that is, the pressure is vertical, so the force direction of the four ends of the scale body is consistent, and the total force is the sum of the four component forces. When the effective projectile passes through the screening plate and hits the flat plate of the scale body, the flat plate of the scale body is stressed. Due to the different projection directions of the projectile, the flat plate of the scale body breaks the balance, and is corrected left and right, front and back through the pulley, rotating connecting rod, and slideway to reach a new balance. At the same time, the four omnidirectional pressure sensors are also driven to reach a new balance, and the force direction of the sensor always remains consistent with the direction of the flat plate of the scale body.

[0004] However, during the implementation of the above technical solution, it was found that there were at least the following technical problems:

[0005] 1. Single detection function: When the existing shot blasting machine projectile force detection device is used, it mainly controls the projectile impact device, and then the pressure sensor inside the device detects the impact force of the projectile. However, the result obtained by this detection method is only the impact force of the projectile on the device, and it is unable to detect the force when the projectile rebounds, resulting in the detection function being too single, affecting the detection effect of the device and the subsequent data processing;

[0006] 2. Unable to detect the impact force of the projectile at different angles: The existing shot blasting machine projectile force detection device can only detect the impact force of the projectile on the device at a specific angle when in use. When the shot blasting machine is in normal use, the projectile hits the workpiece at different angles (this is because the shape of the workpiece is diverse, and the launch direction of the projectile is fixed). Therefore, only detecting the projectile launch force at a certain tilt angle has great limitations and causes certain errors in subsequent adjustments. For this reason, we propose a shot blasting machine projectile rebound force detection device. Summary of the invention

[0007] 1. Technical issues to be resolved

[0008] In view of the deficiencies in the prior art, the present invention provides a device for detecting the rebound force of a shot blasting machine projectile, which solves the technical problems that the existing device for detecting the rebound force of a shot blasting machine projectile has a single detection function and cannot detect at different angles when in use.

[0009] (II) Technical solution

[0010] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0011] A device for detecting the rebound force of a shot blasting machine projectile, the detection device comprising a support frame for supporting a detection component and a detection component installed on the inner wall of the support frame for detecting the rebound force of the projectile:

[0012] A supporting frame, which is in the shape of a rectangular frame;

[0013] A detection component is installed at the front end of the support frame, and is used to detect the rebound force of the projectile;

[0014] The detection assembly includes a bottom plate and a top plate parallel to each other (neither of which is in contact with the support frame bracket), and the bottom plate and the top plate are connected by a spring. When the projectile impacts the top plate, under the action of the spring between the top plate and the bottom plate, the projectile will not have a hard collision. The impact force of the projectile on the top plate changes with time (made into a curve graph). When the force is the largest, this is the impact force of the projectile on the top plate. A pressure sensor (initial value is ) is connected between the bottom plate and the support frame to detect the magnitude of the impact force generated when the projectile hits the device;

[0015] A turntable is movably mounted on the top of the bottom plate, and a support rod is mounted on the top of the turntable. The turntable is driven to rotate by a motor mounted on the bottom of the bottom plate.

[0016] When the support rod corresponds to the through hole outside the top plate, the support rod and the through hole are plugged in. At this time, the bottom plate and the top plate are connected only by the spring. The impact force of the projectile on the device gradually increases, and the maximum value is the actual force of the projectile ejection. Figure 5 and Figure 6 ;

[0017] When the support rod and the through hole outside the top plate do not correspond, the support rod fits the top plate. At this time, the bottom plate and the top plate are rigidly connected. Since the top plate cannot be deformed, when the projectile hits the top plate, a hard collision occurs. The force is the instantaneous impact force. The pressure value is the pressure at the time of impact, and the value is the force after the rebound force is taken out. The difference between the above data is the rebound force of the projectile. Figure 7 shown.

[0018] Preferably, a reserved hole is provided at the bottom of the support frame, and the reserved hole corresponds to the motor at the bottom of the base plate;

[0019] The motor is plugged into the reserved hole to prevent the motor from stopping the bottom plate from moving toward the pressure sensor after the projectile impacts the top plate, thereby ensuring the detection accuracy of the pressure sensor.

[0020] Preferably, the support rod is not located at the center of the turntable to avoid being unable to adjust the position of the support rod when the turntable rotates, and the through hole is on the movement path of the support rod, and the turntable is connected to the base plate through a bearing to improve the mobility of the turntable.

[0021] Preferably, the bottom plate and the top plate are not in contact with the support frame, so as to avoid the support frame affecting the normal movement of the bottom plate or the top plate, that is, to avoid the support frame affecting the detection data of the pressure sensor.

[0022] Preferably, a base is provided below the support frame, and a lifting rod is installed on the top of the base, the lifting rod is used to drive the support frame to move up and down, and when the lifting rod is extended or shortened, it can drive the support frame to move up or down, thereby adjusting the height of the support frame. Figure 2 As shown, it is convenient to detect the impact force of the projectile at different heights.

[0023] Preferably, a steering assembly is provided between the base and the support frame;

[0024] Among them, the steering assembly includes a rotating sleeve, and the rotating sleeve is installed at the bottom of the support frame. The rotating sleeve at the bottom of the support frame is connected to the rotating ball sleeve at the top of the lifting rod, such as the existing universal bearing, so the inclination angle or inclination direction of the support frame can be freely adjusted as needed, which is convenient for detecting the elastic force values ​​at different angles and improving the diversity of detection data.

[0025] Preferably, the rotating sleeve is installed at the bottom center of the support frame to facilitate adjustment of the position of the support frame from the center, and a hemispherical groove is provided at the bottom of the rotating sleeve to facilitate use with a spherical rotating ball.

[0026] Preferably, the steering assembly further comprises four motors, and the four motors are mounted on the top of the base;

[0027] Among them, a traction rope is wrapped around the outside of the motor (a motor with a self-locking function is selected), and one end of the traction rope is connected to the bottom of the support frame (a level is installed inside it), so the traction rope is wound or released by the motor, thereby pulling the four corners of the support frame separately, thereby adjusting the inclination angle of the support frame.

[0028] Preferably, a winding roller is installed on the output shaft of the motor, and the motor is connected to one end of the traction rope through the winding roller, so as to wind up the traction rope.

[0029] (III) Beneficial effects

[0030] 1. Since a rotatable turntable is used to drive the support rod to rotate to adjust the connection between the bottom plate and the top plate, the existing shot blasting machine projectile force detection device has a single detection function when in use, and the impact force and rebound force of the projectile are detected.

[0031] 2. Since the motor is used to mobilize the traction rope to adjust the inclination angle of the support frame, the technical problem that the existing shot blasting machine projectile force detection device cannot detect different angles when in use is effectively solved, and then the ejection force of the projectile at different angles is detected to improve the comprehensiveness of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0033] Figure 1 is an overall structural diagram of an embodiment of the present invention;

[0034] Figure 2 It is a right side view of the overall structure of the embodiment of the present invention;

[0035] Figure 3 It is a structural diagram of a support frame and a steering assembly in an embodiment of the present invention;

[0036] Figure 4 A partial cross-sectional view of a rotating sleeve and a rotating ball in an embodiment of the present invention;

[0037] Figure 5 This is one of the usage state diagrams of the detection component in the embodiment of the present invention;

[0038] Figure 6 This is the second usage state diagram of the detection component in the embodiment of the present invention;

[0039] Figure 7 This is the third usage status diagram of the detection component in the embodiment of the present invention.

[0040] Legend: 1. Base; 2. Support frame; 3. Detection component; 31. Bottom plate; 32. Top plate; 33. Pressure sensor; 34. Turntable; 35. Support rod; 36. Motor; 4. Lifting rod; 51. Motor; 52. Rotating sleeve; 53. Rotating ball; 54. Traction rope. DETAILED DESCRIPTION

[0041] The embodiment of the present application provides a device for detecting the rebound force of the projectiles of a shot blasting machine, which effectively solves the technical problems that the existing device for detecting the force of the projectiles of a shot blasting machine has a single detection function and cannot detect at different angles. When the existing device for detecting the force of the projectiles of a shot blasting machine is used, a rotatable turntable is used to drive the support rod to rotate to adjust the connection between the bottom plate and the top plate, thereby detecting the impact force and the rebound force of the projectile; a motor is used to mobilize the traction rope to adjust the inclination angle of the support frame, thereby detecting the ejection force of the projectile at different angles, thereby improving the comprehensiveness of the detection.

[0042] Example 1

[0043] The technical solution in the embodiment of the present application effectively solves the technical problem that the existing shot blasting machine projectile force detection device has a single detection function when in use. The overall idea is as follows:

[0044] In view of the problems existing in the prior art, the present invention provides a device for detecting the rebound force of a shot blasting machine projectile, the detection device comprising a support frame 2 for supporting a detection component 3 and a detection component 3 installed on the inner wall of the support frame 2 for detecting the rebound force of the projectile:

[0045] The support frame 2 is in the shape of a rectangular frame;

[0046] A detection component 3 is installed at the front end of the support frame 2, and is used to detect the rebound force of the projectile;

[0047] The detection assembly 3 includes a bottom plate 31 and a top plate 32 which are parallel to each other (neither of which is in contact with the support frame 2 bracket), and the bottom plate 31 and the top plate 32 are connected by a spring. When the projectile impacts the top plate 32, under the action of the spring between the top plate 32 and the bottom plate 31, the projectile will not have a hard collision. The impact force of the projectile on the top plate 32 changes with time (made into a curve graph). When the force is the largest, this is the impact force of the projectile on the top plate 32. A pressure sensor 33 (the initial value is 0) is connected between the bottom plate 31 and the support frame 2 to detect the magnitude of the impact force generated when the projectile hits the device;

[0048] A turntable 34 is movably mounted on the top of the bottom plate 31, and a support rod 35 is mounted on the top of the turntable 34. The turntable 34 is driven to rotate by a motor 36 mounted on the bottom of the bottom plate 31;

[0049] When the support rod 35 corresponds to the through hole outside the top plate 32, the support rod 35 is plugged into the through hole. At this time, the bottom plate 31 and the top plate 32 are connected only by the spring. The impact force of the projectile on the device gradually increases, and the maximum value is the actual force of the projectile ejection. Figure 5 and Figure 6 ;

[0050] When the support rod 35 does not correspond to the through hole outside the top plate 32, the support rod 35 fits with the top plate 32. At this time, the bottom plate 31 and the top plate 32 are rigidly connected. Since the top plate 32 cannot be deformed, when the projectile impacts the top plate 32, a hard collision occurs. The force magnitude is the instantaneous impact force. The pressure value obtained is the pressure at the time of impact, and the force magnitude after the rebound force is taken out. The difference between the above data is the rebound force of the projectile, such as Figure 7 shown.

[0051] In some examples, a reserved hole is opened at the bottom of the support frame 2, and the reserved hole corresponds to the motor 36 at the bottom of the bottom plate 31;

[0052] The motor 36 is plugged into the reserved hole to prevent the motor 36 from stopping the bottom plate 31 from moving toward the pressure sensor 33 after the projectile impacts the top plate 32 , thereby ensuring the detection accuracy of the pressure sensor 33 .

[0053] In some instances, the support rod 35 is not located at the center of the turntable 34 to avoid the inability to adjust the position of the support rod 35 when the turntable 34 rotates. The through hole is on the movement path of the support rod 35, and the turntable 34 is connected to the base plate 31 through a bearing to improve the mobility of the turntable 34.

[0054] In some examples, the bottom plate 31 and the top plate 32 are not in contact with the support frame 2 , so as to prevent the support frame 2 from affecting the normal movement of the bottom plate 31 or the top plate 32 , that is, to prevent the support frame 2 from affecting the detection data of the pressure sensor 33 .

[0055] In the specific use process, when it is necessary to detect the elastic force of the projectile, the control motor 36 drives the turntable 34 to rotate, so that the support rod 35 outside the turntable 34 corresponds to the through hole outside the top plate 32, such as Figure 5 The shape shown in the figure, at this time, the bottom plate 31 and the top plate 32 are connected only by the spring. When the top plate 32 receives pressure, the top plate 32 moves toward the bottom plate 31. At this time, the support rod 35 on the top of the rotating disk 34 moves outward along the through hole without contacting the top plate 32, so that the top plate 32 and the bottom plate 31 are connected only by the spring.

[0056] During the projectile elastic force detection, the impact force of the projectile on the device gradually increases (the spring continues to shrink). When the value detected by the pressure sensor 33 reaches the maximum value, this value is the actual force value of the projectile ejection, such as Figure 5 and Figure 6 .

[0057] When the rebound force of the projectile needs to be detected, the control motor 36 drives the turntable 34 to rotate, so that the support rods 35 outside the turntable 34 and the through holes outside the top plate 32 are staggered to form a Figure 6As shown in the shape, at this time, the bottom plate 31 and the top plate 32 are rigidly connected. Since the top plate 32 cannot be deformed, when the projectile impacts the top plate 32, a hard collision occurs, and the force magnitude is the instantaneous impact force. The pressure value obtained is the elastic force value before the projectile rebounds, and the magnitude of the rebound force is obtained by subtracting the elastic force value before the projectile rebounds from the actual force value of the projectile ejection, as shown in FIG. Figure 7 shown.

[0058] Through the above, the impact force and rebound force of the projectile can be obtained, thereby improving the comprehensiveness of projectile force detection.

[0059] Example 2

[0060] Based on Example 1, the embodiment of the present application is to adjust the height of the support frame 2. The overall idea is as follows:

[0061] A base 1 is provided below the support frame 2, and a lifting rod 4 is installed on the top of the base 1. The lifting rod 4 is used to drive the support frame 2 to move up or down. When the lifting rod 4 is extended or shortened, the support frame 2 can be driven to move up or down, thereby adjusting the height of the support frame 2. Figure 2 As shown, it is convenient to detect the impact force of the projectile at different heights.

[0062] Example 3

[0063] Based on Example 1, the embodiment of the present application effectively solves the technical problem that the existing device for detecting the force of the projectiles of the shot blasting machine cannot detect different angles when in use. The overall idea is as follows:

[0064] A steering assembly is provided between the base 1 and the support frame 2;

[0065] Among them, the steering assembly includes a rotating sleeve 52, and the rotating sleeve 52 is installed at the bottom of the support frame 2. The rotating sleeve 52 at the bottom of the support frame 2 is connected to the rotating ball 53 at the top of the lifting rod 4, such as the existing universal bearing, so the inclination angle or inclination direction of the support frame 2 can be freely adjusted as needed, which is convenient for detecting the elastic force values ​​at different angles and improving the diversity of the detection data.

[0066] Example 4

[0067] Based on Example 1, the embodiment of the present application effectively solves the technical problem that the existing device for detecting the force of the projectiles of the shot blasting machine cannot detect different angles when in use. The overall idea is as follows:

[0068] A steering assembly is provided between the base 1 and the support frame 2;

[0069] Among them, the steering assembly includes a rotating sleeve 52, and the rotating sleeve 52 is installed at the bottom of the support frame 2. The rotating sleeve 52 at the bottom of the support frame 2 is connected to the rotating ball 53 at the top of the lifting rod 4, such as the existing universal bearing, so the inclination angle or inclination direction of the support frame 2 can be freely adjusted as needed, which is convenient for detecting the elastic force values ​​at different angles and improving the diversity of the detection data.

[0070] In some instances, the rotating sleeve 52 is installed at the bottom center of the support frame 2 to facilitate adjustment of the position of the support frame 2 from the center. A hemispherical groove is provided at the bottom of the rotating sleeve 52 to facilitate use with the spherical rotating ball 53.

[0071] In some embodiments, the steering assembly further includes four motors 51, and the four motors 51 are mounted on the top of the base 1;

[0072] Among them, a traction rope 54 is wound around the outside of the motor 51 (a motor 51 with a self-locking function is selected), and one end of the traction rope 54 is connected to the bottom of the support frame 2 (a level is installed inside it), so the traction rope 54 is wound or released by the motor 51, thereby pulling the four corners of the support frame 2 separately, thereby adjusting the inclination angle of the support frame 2.

[0073] In some examples, a winding roller is installed on the output shaft of the motor 51 , and the motor 51 is connected to one end of the traction rope 54 through the winding roller, so that the traction rope 54 is wound up.

[0074] When the tilt angle of the support frame 2 (and the detection component 3 installed outside the support frame 2) needs to be adjusted, the motor 51 in the direction to be tilted is energized, and the traction rope 54 connected to the motor 51 is reeled in, so that the traction rope 54 in this direction pulls the support frame 2 to tilt in this direction, thereby tilting the support frame 2.

[0075] For example, when it is necessary to control the support frame 2 (and the detection assembly 3 installed outside the support frame 2) to tilt backward, that is, from Figure 1 In the state shown, the support frame 2 tends to be parallel to the base 1, and the motor 51 at the rear end of the lifting rod 4 is controlled to be energized to reel in the traction rope 54 connected thereto. At this time, the rear end of the support frame 2 (i.e., the position connected to the rear end of the support frame 2 receives the tension) receives the tension, so that the support frame 2 tilts backwards. At the same time, the motor 51 at the front end of the lifting rod 4 is controlled to be energized to release the traction rope 54. Therefore, at this time, the support frame 2 is only subjected to the backward tension, so that the support frame 2 tilts backwards. After the adjustment is completed, all motors 51 are controlled to stop rotating.

[0076] Whether the process is completed can be determined by manually detecting the tilt angle of the support frame 2 , or by using a device capable of detecting the tilt angle of the support frame 2 to detect the tilt angle of the support frame 2 in real time.

[0077] All electrical devices are powered by batteries. The battery may be one or more and may be installed on the base 1 or the support frame 2 .

[0078] For example, the electrical equipment inside the support frame 2 is powered by a battery installed inside the support frame 2 , and the electrical equipment on the base 1 is powered by a battery inside the base 1 .

[0079] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A device for detecting the rebound force of a shot blasting machine, characterized in that: The detection device comprises: Support frame (2); A detection component (3) is installed at the front end of the support frame (2), and the detection component (3) is used to detect the rebound force of the projectile; The detection assembly (3) comprises a bottom plate (31) and a top plate (32) which are parallel to each other, and the bottom plate (31) and the top plate (32) are connected by a spring, and a pressure sensor (33) is connected between the bottom plate (31) and the support frame (2); A turntable (34) is movably mounted on the top of the bottom plate (31), and a support rod (35) is mounted on the top of the turntable (34). The turntable (34) is driven to rotate by a motor (36) mounted on the bottom of the bottom plate (31); When the support rod (35) corresponds to the through hole outside the top plate (32), the support rod (35) and the through hole are plugged into each other; When the support rod (35) does not correspond to the through hole outside the top plate (32), the support rod (35) is in contact with the top plate (32).

2. A device for detecting the rebound force of a shot blasting machine projectile as claimed in claim 1, characterized in that: A reserved hole is provided at the bottom of the support frame (2), and the reserved hole corresponds to the motor (36) at the bottom of the bottom plate (31); Wherein, the motor (36) is plugged into the reserved hole.

3. A device for detecting the rebound force of a shot blasting machine projectile as claimed in claim 1, characterized in that: The support rod (35) is not located at the center of the turntable (34), and the turntable (34) is connected to the bottom plate (31) via a bearing.

4. A device for detecting the rebound force of a shot blasting machine projectile as claimed in claim 1, characterized in that: The bottom plate (31) and the top plate (32) are not in contact with the support frame (2).

5. A device for detecting the rebound force of a shot blasting machine projectile as claimed in claim 1, characterized in that: A base (1) is provided below the support frame (2), and a lifting rod (4) is installed on the top of the base (1), wherein the lifting rod (4) is used to drive the support frame (2) to move up and down.

6. A device for detecting the rebound force of a shot blasting machine projectile as claimed in claim 5, characterized in that: A steering assembly is provided between the base (1) and the support frame (2); The steering assembly comprises a rotating sleeve (52), and the rotating sleeve (52) is installed at the bottom of the support frame (2), and the rotating sleeve (52) at the bottom of the support frame (2) is sleeved with the rotating ball (53) at the top of the lifting rod (4).

7. A device for detecting the rebound force of a shot blasting machine projectile as claimed in claim 6, characterized in that: The rotating sleeve (52) is installed at the bottom center of the supporting frame (2), and a hemispherical groove is provided at the bottom of the rotating sleeve (52).

8. A device for detecting the rebound force of a shot blasting machine projectile as claimed in claim 6, characterized in that: The steering assembly further comprises four motors (51), and the four motors (51) are mounted on the top of the base (1); A traction rope (54) is wound around the outside of the motor (51), and one end of the traction rope (54) is connected to the bottom of the support frame (2).

9. A device for detecting the rebound force of a shot blasting machine projectile as claimed in claim 8, characterized in that: A winding roller is installed on the output shaft of the motor (51), and the motor (51) is connected to one end of the traction rope (54) via the winding roller.

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