Elastic piece detection tool

Abstract

The utility model relates to the technical field of workpiece detection, and provides an elastic piece detection tool, which comprises a base, a top frame, a sensor and a spring, and is characterized in that an air hole is formed in the base; the top frame is arranged on the base in a sliding manner; the sensor comprises a pressure sensor and a displacement sensor; the pressure sensor and the displacement sensor are arranged at one end, far away from the base, of the top frame at intervals; the two ends of the spring abut against the top frame and the pressure sensor respectively. The top frame and the sensor are arranged on one side of the elastic workpiece, the stress and the displacement variation of the elastic workpiece can be detected, the elastic workpiece is extruded and deformed by arranging the air holes and utilizing communication of the air holes and air source equipment, and compared with a mode of directly extruding the elastic workpiece, the elastic workpiece can be directly extruded. The operation and maintenance cost of the detection tool can be reduced, and damage to the elastic workpiece in the detection process can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece detection, in particular to an elastic part detection tool. Background Art

[0002] As the name suggests, elastic parts are processing components with elasticity, which are used in various fields. In order to ensure the processing quality of elastic parts, it is usually necessary to use testing tooling to test the performance of elastic parts during the processing of elastic parts.

[0003] The utility model with announcement number CN217155770U discloses an elasticity detection device, including a base plate, the left and right sides of the upper end of the base plate are respectively fixedly connected with side plates, the upper ends of two groups of side plates are fixedly connected to the left and right sides of the lower end of the top plate, the lower end of the support plate is fixedly connected with a pressure sensor, and the left end of the left side plate is fixedly connected with a displacement sensor, the upper end of the displacement sensor is movably connected with a measuring needle, the upper end of the measuring needle is provided with a pressure block, and the pressure block is fixedly connected to the right side of the rear end of the support plate; the elastic product is placed on the upper end of the lower tooling, and the servo electric cylinder is turned on to drive the support plate downward, the detection head moves downward and compresses the elastic product, and at the same time, the elastic force of the elastic product itself applies a reverse force to the detection head, and the elastic coefficient of the product can be determined by the compression displacement and pressure sensor of the product. When one detection element is damaged, it can be calibrated by another detection element to reduce the economic loss of the product.

[0004] In the above technical solution, a servo electric cylinder is provided to compress and test the elastic product. However, during this testing process, the testing head on the servo electric cylinder needs to be squeezed with the elastic product, which causes indentations on the surface of the elastic product, affecting the normal use of the elastic product. Utility Model Content

[0005] In view of this, the present invention proposes an elastic part detection tool, which can avoid indentations on the elastic workpiece after being compressed, thereby improving the protective performance of the detection tool.

[0006] The technical solution of the present invention is implemented as follows: The present invention provides an elastic part detection tool, including a base, a top frame, a sensor and a spring, wherein:

[0007] An air hole is opened in the base, and the elastic workpiece is fixedly arranged on the top side of the base to block the air hole;

[0008] The top frame is slidably arranged on the base and abuts against the top side of the elastic workpiece;

[0009] The sensor includes a pressure sensor and a displacement sensor, and the pressure sensor and the displacement sensor are both spaced apart and arranged at one end of the top frame away from the base;

[0010] The two ends of the spring are respectively against the top frame and the pressure sensor.

[0011] On the basis of the above technical solution, preferably, the top frame includes a top rod and a rangefinder, wherein,

[0012] The push rod is slidably arranged on the base and abuts against the top side of the elastic workpiece, and an end of the push rod away from the base is spaced apart from the pressure sensor;

[0013] The distance measuring piece is fixedly arranged on the peripheral side of the push rod and is spaced apart from the displacement sensor. The distance measuring piece is in contact with an end of the spring away from the pressure sensor.

[0014] More preferably, the rangefinder is perpendicular to the axis of the push rod.

[0015] More preferably, one end of the spring away from the pressure sensor is sleeved on the outside of the push rod and abuts against the distance measuring piece.

[0016] More preferably, the push rod includes a main rod and a supporting seat, wherein,

[0017] The main rod is slidably arranged on the base;

[0018] The abutment seat is fixedly arranged at the bottom end of the main rod and abuts against the top side of the elastic workpiece, and the outer diameter of the abutment seat is greater than the outer diameter of the main rod.

[0019] More preferably, the base includes a pedestal and a disassembly seat, wherein:

[0020] The air hole is provided in the base;

[0021] The disassembly seat is detachably fixed on the base, the main rod is slidably arranged on the disassembly seat, and the elastic workpiece is fixedly arranged between the disassembly seat and the base.

[0022] More preferably, the push rod further includes an easily detachable rod, the easily detachable rod is detachably fixed to the top end of the main rod, and the distance measuring piece is fixedly arranged on the peripheral side of the easily detachable rod.

[0023] More preferably, the base also includes a mounting plate, which is fixedly arranged on the top side of the base and seals the air holes. A plurality of through holes are opened in the mounting plate, and the through holes are connected to the air holes. The elastic workpiece is arranged against the top side of the mounting plate and seals the through holes.

[0024] More preferably, an air vent is provided on the disassembly and assembly seat.

[0025] On the basis of the above technical solution, preferably, the air hole includes an output slot and an input slot, wherein,

[0026] The output slot is provided on the top side of the base, and the elastic workpiece blocks the output slot;

[0027] The input groove is arranged on the peripheral side of the base and is communicated with the output groove.

[0028] The elastic component detection tool of the utility model has the following beneficial effects compared with the prior art:

[0029] (1) By setting a top frame and a sensor on one side of the elastic workpiece, the force and displacement change of the elastic workpiece can be detected. By setting air holes and connecting the air holes with the air source equipment, the elastic workpiece can be squeezed and deformed. Compared with the method of directly squeezing the elastic workpiece, this method can not only reduce the operation and maintenance cost of the detection tooling, but also reduce the damage caused to the elastic workpiece during the detection process;

[0030] (2) By setting up the base, the disassembly seat and the mounting plate, the elastic workpiece can be well fixed, thereby ensuring the detection accuracy of the detection tool;

[0031] (3) By providing the main rod, the support seat and the easy-to-remove rod, the inspection tool can be easily disassembled, assembled and maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 This is a three-dimensional diagram of an elastic component detection tool of the present invention;

[0034] Figure 2 This is a cross-sectional view of the base of an elastic component detection tool of the present invention;

[0035] Figure 3 This is a three-dimensional diagram of the base of an elastic component detection tool of the present invention;

[0036] Figure 4 This is a three-dimensional diagram of a disassembly and assembly seat in an elastic member detection tool of the utility model;

[0037] Figure 5 This is a three-dimensional diagram of a top frame in an elastic part detection tooling of the present invention.

[0038] Among them: 1. Base; 11. Base; 12. Disassembly and assembly seat; 13. Mounting plate; 101. Air hole; 1011. Output slot; 1012. Input slot; 102. Perforation; 103. Air vent; 2. Top frame; 21. Top rod; 211. Main rod; 212. Support seat; 213. Easy-to-remove rod; 22. Distance measuring piece; 3. Sensor; 31. Pressure sensor; 32. Displacement sensor; 4. Spring; 5. Elastic workpiece. DETAILED DESCRIPTION

[0039] The following will be combined with the specific embodiments of the present invention to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0040] like Figure 1-5 As shown, an elastic part detection tool of the present invention includes a base 1, a top frame 2, a sensor 3 and a spring 4, and is used to detect the compressive pressure and compressive displacement of an elastic workpiece 5.

[0041] Among them, the base 1 is used to support other components, and an air hole 101 is opened in the base 1. The elastic workpiece 5 is fixedly set on the top side of the base 1 and seals the air hole 101. The air hole 101 is used to connect with the air source equipment to allow the gas in the air source equipment to enter the air hole 101.

[0042] The top frame 2 is used to reflect the displacement state of the elastic workpiece 5. The top frame 2 is slidably set on the base 1 and is in contact with the top side of the elastic workpiece 5. When the gas source equipment injects a certain pressure of gas into the air hole 101, the elastic workpiece 5 can be elastically displaced toward the side away from the air hole 101, thereby forcing the top frame 2 to displace toward the side away from the air hole 101; during this detection process, high-pressure gas is used to push the elastic workpiece 5 to move. Compared with the method of using a cylinder or other equipment to squeeze the elastic workpiece 5, it can avoid the surface of the elastic workpiece 5 from being squeezed and damaged, and has a good protective effect.

[0043] The sensor 3 is used to detect the specific values of the compressive pressure and compressive displacement of the elastic workpiece 5. The sensor 3 includes a pressure sensor 31 and a displacement sensor 32. The detection principle of the pressure sensor 31 and the displacement sensor 32 is the existing technology. The pressure sensor 31 can detect the compressive strength of the top frame 2, thereby reflecting the compressive pressure value of the elastic workpiece 5. The displacement sensor 32 is arranged at an interval at one end of the top frame 2 away from the base 1. The displacement sensor 32 can detect the displacement of the top frame 2, thereby reflecting the compressive displacement of the elastic workpiece 5.

[0044] The spring 4 is used to connect the top frame 2 and the pressure sensor 31. The pressure sensor 31 is spaced apart at the end of the top frame 2 away from the base 1. The two ends of the spring 4 are respectively against the top frame 2 and the pressure sensor 31, so as to avoid the top frame 2 displacement being too large or too small to hinder the detection of the pressure sensor 31; in order to avoid the spring 4 exerting a large pressure on the top frame 2 and causing damage to the surface of the elastic workpiece 5, it is preferred to use a spring 4 with smaller elastic force.

[0045] like Figure 2-Figure 4 As shown, the base 1 includes a base 11, a disassembly seat 12 and a mounting plate 13, and the air hole 101 is opened in the base 11; the disassembly seat 12 is detachably fixed on the base 11, and the elastic workpiece 5 is fixedly arranged between the disassembly seat 12 and the base 11. The detachable connection between the base 11 and the disassembly seat 12 can not only fix the elastic workpiece 5 to avoid lateral displacement of the elastic workpiece 5 after being compressed, but also facilitate the replacement of the elastic workpiece 5, thereby accelerating the batch detection efficiency of the elastic workpiece 5.

[0046] The mounting plate 13 is fixedly arranged on the top side of the base 11 and blocks the air hole 101. A plurality of through holes 102 are opened in the mounting plate 13, and the through holes 102 are connected to the air holes 101. The elastic workpiece 5 is set against the top side of the mounting plate 13 and blocks the through holes 102. The setting of the mounting plate 13 can provide auxiliary support for the elastic workpiece 5, which can not only improve the fixing performance of the elastic workpiece 5, but also avoid the problem of the elastic workpiece 5 falling into the air hole 101 due to its small size.

[0047] like Figure 2 As shown, a closed cavity is formed between the base 11 and the disassembly and assembly seat 12. In order to avoid a large change in the air pressure in the cavity when the elastic workpiece 5 is deformed, an air vent 103 is opened on the disassembly and assembly seat 12 so that the cavity is connected to the outside through the air vent 103.

[0048] like Figure 2As shown, the top frame 2 includes a top rod 21 and a distance-measuring piece 22. The top rod 21 is slidably set on the base 1 and abuts against the top side of the elastic workpiece 5, and the end of the top rod 21 away from the base 1 is spaced apart from the pressure sensor 31; the distance-measuring piece 22 is fixedly set on the circumferential side of the top rod 21 and abuts against the displacement sensor 32, and the distance-measuring piece 22 abuts against the end of the spring 4 away from the pressure sensor 31; the displacement of the distance-measuring piece 22 is the compressive offset of the elastic workpiece 5. The setting of the distance-measuring piece 22 not only increases the size of the detection target of the displacement sensor 32, making the detection result of the displacement sensor 32 more accurate, but also provides good support for the spring 4, thereby ensuring the structural stability of the detection tooling.

[0049] The resistance generated when the push rod 21 slides with the base 1 will have a certain impact on the detection results. In order to reduce this impact, it is preferred to set a linear bearing between the push rod 21 and the base 1. The linear bearing is fixed on the base 1, and the push rod 21 is slidably set inside the linear bearing.

[0050] It is preferred that the distance measuring piece 22 is perpendicular to the axis of the push rod 21, and the side of the distance measuring piece 22 is perpendicular to the detection end of the displacement sensor 32, so as to ensure the detection accuracy of the displacement sensor 32; and in order to further enhance the fixing stability of the spring 4, it is preferred that the end of the spring 4 away from the pressure sensor 31 is sleeved on the outside of the push rod 21 and abutted against the distance measuring piece 22.

[0051] like Figure 2 and Figure 5 As shown, the push rod 21 includes a main rod 211, a supporting seat 212 and an easily disassembled rod 213. The main rod 211 is slidably set on the base 1, specifically, it is slidably set on the disassembly seat 12; the supporting seat 212 is fixedly set at the bottom end of the main rod 211 and is supported by the top side of the elastic workpiece 5, and the outer diameter of the supporting seat 212 is larger than the outer diameter of the main rod 211. The setting of the supporting seat 212 increases the contact area between the push rod 21 and the elastic workpiece 5, thereby preventing the push rod 21 from damaging the elastic workpiece 5.

[0052] The easily detachable rod 213 is detachably fixed to the top of the main rod 211 , and the distance measuring piece 22 is fixedly arranged on the peripheral side of the easily detachable rod 213 . By disassembling the easily detachable rod 213 and the main rod 211 , the top frame 2 can be easily removed from the base 1 .

[0053] like Figure 2 As shown, the air hole 101 includes an output groove 1011 and an input groove 1012. The output groove 1011 is opened on the top side of the base 1, and the elastic workpiece 5 blocks the output groove 1011; the input groove 1012 is opened on the peripheral side of the base 1 and is connected with the output groove 1011. The input groove 1012 is used to be connected with the air source equipment. It is opened on the side of the base 1, which makes the connection between the air hole 101 and the air source equipment more convenient.

[0054] The method of using the elastic part detection tool of the utility model is as follows:

[0055] First, move the disassembly and assembly seat 12 upward, place the elastic workpiece 5 on the top side of the mounting plate 13, and then move the disassembly and assembly seat 12 downward. Use the base 11 and the disassembly and assembly seat 12 to clamp and fix the elastic workpiece 5. Then connect the air hole 101 to the air source equipment, adjust the pressure sensor 31 and the displacement sensor 32 to zero, and then input a certain pressure of gas into the air hole 101. Use the change in air pressure to make the elastic workpiece 5 elastically displaced. Finally, read the values of the pressure sensor 31 and the displacement sensor 32 to respectively reflect the compressive pressure and compressive displacement of the elastic workpiece 5, so as to determine the performance of the elastic workpiece 5.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An elastic component inspection tool, characterized by: It comprises a base (1), a top frame (2), a sensor (3) and a spring (4), wherein: An air hole (101) is provided in the base (1), and an elastic workpiece (5) is fixedly arranged on the top side of the base (1) to seal the air hole (101); The top frame (2) is slidably arranged on the base (1) and abuts against the top side of the elastic workpiece (5); The sensor (3) comprises a pressure sensor (31) and a displacement sensor (32), and the pressure sensor (31) and the displacement sensor (32) are both arranged at intervals at one end of the top frame (2) away from the base (1); The two ends of the spring (4) are respectively against the top frame (2) and the pressure sensor (31).

2. The elastic component inspection tool according to claim 1, characterized in that: The top frame (2) includes a top rod (21) and a distance measuring piece (22), wherein: The push rod (21) is slidably arranged on the base (1) and abuts against the top side of the elastic workpiece (5), and an end of the push rod (21) away from the base (1) is spaced apart from the pressure sensor (31); The distance measuring piece (22) is fixedly arranged on the circumferential side of the push rod (21) and is spaced apart from the displacement sensor (32), and the distance measuring piece (22) abuts against an end of the spring (4) away from the pressure sensor (31).

3. The elastic component inspection tool according to claim 2, characterized in that: The distance measuring piece (22) is perpendicular to the axis of the push rod (21).

4. The elastic component inspection tool according to claim 3, characterized in that: One end of the spring (4) away from the pressure sensor (31) is sleeved on the outside of the push rod (21) and abuts against the distance measuring piece (22).

5. The elastic component inspection tool according to claim 2, characterized in that: The push rod (21) includes a main rod (211) and a supporting seat (212), wherein: The main rod (211) is slidably arranged on the base (1); The abutment seat (212) is fixedly arranged at the bottom end of the main rod (211) and abuts against the top side of the elastic workpiece (5), and the outer diameter of the abutment seat (212) is larger than the outer diameter of the main rod (211).

6. The elastic component inspection tool according to claim 5, characterized in that: The base (1) comprises a pedestal (11) and a disassembly seat (12), wherein: The air hole (101) is provided in the base (11); The disassembly seat (12) is detachably fixed on the base (11), the main rod (211) is slidably arranged on the disassembly seat (12), and the elastic workpiece (5) is fixedly arranged between the disassembly seat (12) and the base (11).

7. The elastic component inspection tool according to claim 6, characterized in that: The push rod (21) further comprises an easily detachable rod (213), wherein the easily detachable rod (213) is detachably fixed to the top end of the main rod (211), and the distance measuring piece (22) is fixedly arranged on the peripheral side of the easily detachable rod (213).

8. The elastic component inspection tool according to claim 6, characterized in that: The base (1) further comprises a mounting plate (13), the mounting plate (13) being fixedly arranged on the top side of the base (11) and blocking the air hole (101), a plurality of through holes (102) being provided in the mounting plate (13), and the through holes (102) being connected to the air holes (101), and the elastic workpiece (5) being arranged against the top side of the mounting plate (13) and blocking the through holes (102).

9. The elastic component inspection tool according to claim 6, characterized in that: An air release hole (103) is provided on the disassembly and assembly seat (12).

10. The elastic component inspection tool according to claim 1, characterized in that: The air hole (101) includes an output groove (1011) and an input groove (1012), wherein: The output groove (1011) is provided on the top side of the base (1), and the elastic workpiece (5) blocks the output groove (1011); The input groove (1012) is provided on the peripheral side of the base (1) and is communicated with the output groove (1011).

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