Harmonica reed thickness detection device

Abstract

The invention relates to the technical field of harmonica reed thickness detection, and discloses a harmonica reed thickness detection device which comprises a base, a hollow test board is fixed on the base, an annular feeding seat is arranged on the outer side of the hollow test board, and a plurality of placement grooves which are circumferentially distributed at equal intervals are formed in the annular feeding seat. A first push plate is arranged in the placing groove, a guide groove is formed in the placing groove, and a second push plate is arranged in the guide groove; an L-shaped ruler frame is fixed to one side of the base, a micro-measurement screw is installed on the L-shaped ruler frame, a first push plate arranged in a containing groove and a second push plate arranged in a guide groove are matched, and a harmonica reed on the first push plate can be horizontally pushed to a sealing air bag on a measuring anvil. The purpose of synchronously feeding a plurality of tested harmonica reeds can be achieved, the feeding convenience of the harmonica reeds is greatly improved, time and labor are saved, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of harmonica reed thickness detection, in particular to a harmonica reed thickness detection device. Background Art

[0002] The thickness test of harmonica reeds is of key significance to the performance and quality of the instrument, which is mainly reflected in the following aspects: the relationship between reed thickness and pitch: reed thickness is the core factor affecting the vibration frequency. Under the same length, the thicker the reed, the slower the vibration and the lower the pitch; conversely, the higher the pitch. Testing the thickness can ensure that the reeds in each tone range meet the designed pitch and avoid pitch deviation; compensate for process errors: the thickness of the reed may be uneven during processing, such as low-end products with large errors. Through testing, out-of-tolerance reeds can be screened out to ensure factory pitch consistency.

[0003] In the prior art, the thickness of harmonica reeds is mainly detected by micrometers. During the detection, the harmonica reed is placed on a measuring anvil, and the harmonica reed is pressed against the measuring anvil by rotating a micro-screw. The rotation is stopped after a "click" sound is heard, and the micro-screw is locked by a locking wrench. Then, the scale value on the micro-screw is read. The harmonica reed whose thickness is within a certain tolerance range is qualified. At present, the harmonica reeds need to be placed on the measuring anvil one by one for pressing and testing. The detection operation is repeated continuously, which is time-consuming and labor-intensive. The detection efficiency of the harmonica reed thickness is low and the speed is slow, which is not conducive to testing a large number of harmonica reeds at the same time to distinguish qualified products. Summary of the Invention

[0004] The present invention provides a harmonica reed thickness detection device, which is equipped with a first push plate built into a placement groove and a second push plate in a guide groove, and can push the harmonica reed on the first push plate horizontally onto a sealed air bag on an anvil, so as to achieve the purpose of synchronously loading a plurality of tested harmonica reeds, greatly improving the convenience of loading a plurality of harmonica reeds, and achieving the beneficial effects of saving time and labor, convenience and speed, and solving the problem mentioned in the above background technology that the harmonica reeds need to be placed one by one on the anvil for tightness detection during detection, and the detection operation is repeated continuously, which is time-consuming and labor-intensive, and the detection efficiency of the harmonica reed thickness is low and the speed is slow, which is not conducive to simultaneous detection of a large number of harmonica reeds to distinguish qualified products.

[0005] The present invention provides the following technical solution: a harmonica reed thickness detection device, comprising a base, a hollow test platform fixed on the base, an annular loading seat provided on the outer side of the hollow test platform, a plurality of placement grooves equidistantly distributed around the circumference provided on the annular loading seat, a first push plate provided in the placement groove, a guide groove provided on the placement groove, and a second push plate provided in the guide groove; An L-shaped ruler frame is fixed on one side of the base, and a micro-measurement screw is installed on the L-shaped ruler frame. A measuring anvil is fixed on the hollow test bench, and a plurality of circular grooves equidistantly distributed around the circumference are opened on the measuring anvil, and a sealed airbag is installed in the circular groove. A plurality of scale display columns are provided above the hollow test bench.

[0006] As an optional solution of the harmonica reed thickness detection device described in the present invention, several first resistance rods are provided in the annular loading seat, the first resistance rods are elastically connected to the placement groove through a first spring, and the first push plate is fixedly connected to the upper end of the first resistance rod.

[0007] As an optional solution of the harmonica reed thickness detection device described in the present invention, a first contact ring is provided in the annular loading seat, a guide hole is provided on the first contact ring, a first guide column is fixed on the annular loading seat, the first guide column is slidably connected in the guide hole, and the lower end of the first contact rod is against the first contact ring.

[0008] As an optional solution of the harmonica reed thickness detection device described in the present invention, wherein: a mounting block is fixed on the base, a threaded rod is threadedly connected to the mounting block, the end of the threaded rod is rotatably connected to a wedge-shaped interference strip, the wedge-shaped interference strip is slidably connected to the annular loading seat, and one end of the wedge-shaped interference strip interferes with the first interference ring.

[0009] As an optional solution of the harmonica reed thickness detection device described in the present invention, a sliding frame is fixed on the circumferential surface of the annular loading seat, a second resistance ring is slidably connected to the sliding frame, a second spring is connected between the second resistance ring and the sliding frame, and a first resistance wedge is fixed on the wedge-shaped resistance strip.

[0010] As an optional solution of the harmonica reed thickness detection device described in the present invention, wherein: a second interference rod is fixed on the second push plate, the second interference rod is elastically connected to the guide groove through a third spring, a second interference wedge is fixed at one end of the second interference rod, and the second interference wedge interferes with the first interference wedge.

[0011] As an optional solution of the harmonica reed thickness detection device described in the present invention, wherein: a piston cylinder is fixed on the anvil, an amplification component is provided between the piston cylinder and the scale display column, a piston plate is slidably connected in the piston cylinder, a piston rod is fixed on the piston plate, the piston rod is slidably connected to the piston cylinder, a fourth spring is connected between the piston plate and the piston cylinder, and the piston cylinder is connected to the sealing airbag through a pipe.

[0012] As an optional solution of the harmonica reed thickness detection device described in the present invention, the amplification component includes a water outlet, the water outlet is fixed on one side of the piston cylinder, and a water pipe is connected to the water outlet, the scale display column is fixed on the anvil, and a cavity is formed on the scale display column, one end of the water pipe is connected to the scale display column, and the water pipe is communicated with the cavity.

[0013] As an optional solution of the harmonica reed thickness detection device described in the present invention, the amplification component includes a third interference wedge, the third interference wedge is fixed on one end of the piston rod, a mounting bracket is fixed on the anvil, a seesaw is rotatably connected to the mounting bracket, the scale display column is slidingly connected to the anvil through a fifth spring, and the lower end of the scale display column is in conflict with one end of the seesaw, and the third interference wedge is in conflict with the other end of the seesaw.

[0014] As an optional solution of the harmonica reed thickness detection device described in the present invention, a test disk is fixed to the test end of the micro-test screw, the test disk is opposite to the test anvil, and a locking wrench for locking the micro-test screw is provided on the L-shaped ruler frame.

[0015] The present invention has the following beneficial effects:

[0016] 1. The harmonica reed thickness detection device facilitates simultaneous thickness testing of multiple harmonica reeds through a test anvil fixed on a hollow test table. A plurality of placement grooves equidistantly distributed around the circumference of the annular loading seat facilitate simultaneous placement of multiple harmonica reeds to be tested. A first push plate provided in the placement groove can push the harmonica reed in the placement groove upward during loading. A second push plate provided in the guide groove cooperates to push the harmonica reed on the first push plate horizontally onto the sealed airbag on the test anvil, thereby achieving the purpose of synchronous loading of multiple tested harmonica reeds, greatly improving the convenience of loading multiple harmonica reeds, saving time and effort, and being convenient and fast. The threaded rod threadedly connected to the mounting block can be used to adjust the wedge-shaped interference strip to move horizontally in the annular feeding seat during rotation, so that the wedge-shaped interference strip can interfere with the first interference ring, so that the first interference rods drive the first push plate to move upward in the placement groove, and adjust the vertical feeding height of the harmonica reeds. When the wedge-shaped interference strip continues to move, the first interference wedge block on the wedge-shaped interference strip can interfere with the second interference ring, so that the second interference ring can move upward and interfere with the second interference wedge blocks fixed at one end of the second interference rods, thereby achieving the purpose of the second push plate automatically pushing the harmonica reed onto the anvil for detection.

[0017] 2. The harmonica reed thickness detection device facilitates the installation of several sealing airbags through the circular groove provided on the anvil. The sealing airbags protrude above the surface of the anvil. The piston cylinder fixed on the anvil can communicate with the sealing airbags. When the sealing airbags are squeezed, the gas generated is transported into the piston cylinder, which can achieve the purpose of pushing the piston plate and the piston rod to move horizontally within the piston cylinder. The greater the deformation of the sealing airbag, the greater the distance the piston plate moves within the piston cylinder. The corresponding amplification component cooperates with the scale display column to amplify the deformation of the sealing airbag, thereby facilitating the operator to directly observe the numerical value of the squeezed sealing airbag with the naked eye. When the micro-screw installed on the L-shaped ruler rotates, the test disc can be driven to move down and against the harmonica reed on the sealing airbag until the harmonica reed contacts the surface of the anvil. If the thickness of the tested harmonica reed is greater than the upper limit of the specified thickness numerical tolerance, the corresponding sealing airbag will be squeezed first, and the deformation is large, and the distance the piston moves is large; if the thickness of the tested harmonica reed is less than the lower limit of the specified thickness numerical tolerance, the sealing airbag is squeezed with little force, and the deformation is small, and the distance the piston moves is small; if the thickness of the tested harmonica reed is within the specified thickness numerical tolerance range, the sealing airbag is squeezed with moderate force, the deformation is moderate, and the distance the piston moves is moderate. After the deformation of the sealing airbag is amplified by the amplifying components corresponding to each sealing airbag, it is convenient for the staff to observe the changes in the corresponding scale display column to judge whether the thickness of several tested harmonica reeds is within the specified thickness numerical tolerance range, which can greatly improve the efficiency of detecting and distinguishing qualified harmonica reeds from unqualified harmonica reeds. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a structural cross-sectional view of the present invention.

[0020] Figure 3 It is a structural schematic diagram of the annular loading seat of the present invention.

[0021] Figure 4 It is a schematic diagram of the back structure of the anvil of the present invention.

[0022] Figure 5 It is a schematic diagram of the structure of the amplifying component of the present invention.

[0023] Figure 6 for Figure 2 A partial enlarged schematic diagram of point A in the middle.

[0024] Figure 7 for Figure 2 A partial enlarged schematic diagram of point B in the middle.

[0025] Figure: 1, base; 101, mounting block; 2, hollow test table; 3, annular loading seat; 4, placement groove; 5, first push plate; 6, guide groove; 7, second push plate; 8, wedge-shaped contact strip; 9, L-shaped ruler frame; 10, micro-screw; 11, first contact ring; 12, circular groove; 13, sealing airbag; 14, scale display column; 15, first contact rod; 16, first spring; 17, guide hole; 18, first guide column; 19, threaded rod; 20, sliding frame; 2 1. Second interference ring; 22. Second spring; 23. First interference wedge; 24. Second interference rod; 25. Third spring; 26. Second interference wedge; 27. Piston cylinder; 28. Piston plate; 29. ​​Piston rod; 30. Fourth spring; 31. Test disc; 32. Anvil; 33. Locking wrench; 271. Water outlet; 272. Water pipe; 273. Cavity; 274. Third interference wedge; 275. Mounting bracket; 276. Rocker; 277. Fifth spring. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0027] For example 1, please refer to Figures 1 to 7 A harmonica reed thickness detection device includes a base 1, a hollow test platform 2 is fixed on the base 1, an annular loading seat 3 is provided on the outer side of the hollow test platform 2, a plurality of placement grooves 4 with equal distances around the circumference are provided on the annular loading seat 3, a first push plate 5 is provided in the placement groove 4, a guide groove 6 is provided on the placement groove 4, and a second push plate 7 is provided in the guide groove 6; An L-shaped ruler frame 9 is fixed to one side of the base 1, and a micro-measurement screw 10 is installed on the L-shaped ruler frame 9. A measuring anvil 32 is fixed on the hollow test table 2. The measuring anvil 32 is provided with a plurality of circular grooves 12 distributed equidistantly around the circumference, and a sealing airbag 13 is installed in the circular groove 12. A plurality of scale display columns 14 are provided above the hollow test table 2.

[0028] A plurality of first resisting rods 15 are provided in the annular loading seat 3 . The first resisting rods 15 are elastically connected to the placement groove 4 via a first spring 16 . The first push plate 5 is fixedly connected to the upper end of the first resisting rod 15 .

[0029] A first interference ring 11 is provided in the annular loading seat 3, and a guide hole 17 is opened on the first interference ring 11. A first guide column 18 is fixed on the annular loading seat 3, and the first guide column 18 is slidably connected in the guide hole 17. The lower end of the first interference rod 15 is against the first interference ring 11.

[0030] A mounting block 101 is fixed on the base 1, and a threaded rod 19 is threadedly connected to the mounting block 101. The end of the threaded rod 19 is rotatably connected to a wedge-shaped interference strip 8. The wedge-shaped interference strip 8 is slidingly connected to the annular loading seat 3, and one end of the wedge-shaped interference strip 8 interferes with the first interference ring 11.

[0031] A sliding frame 20 is fixed on the circumferential surface of the annular loading seat 3, a second contact ring 21 is slidably connected to the sliding frame 20, a second spring 22 is connected between the second contact ring 21 and the sliding frame 20, and a first contact wedge 23 is fixed on the wedge-shaped contact strip 8.

[0032] A second interference rod 24 is fixed to the second push plate 7 , and the second interference rod 24 is elastically connected to the guide groove 6 via a third spring 25 . A second interference wedge 26 is fixed to one end of the second interference rod 24 , and the second interference wedge 26 interferes with the first interference wedge 23 .

[0033] A test disc 31 is fixed to the test end of the micro-test screw 10 . The test disc 31 is opposite to the test anvil 32 . A locking wrench 33 for locking the micro-test screw 10 is provided on the L-shaped ruler frame 9 .

[0034] A piston cylinder 27 is fixed on the anvil 32, and an amplifying assembly is provided between the piston cylinder 27 and the scale display column 14. A piston plate 28 is slidably connected in the piston cylinder 27, and a piston rod 29 is fixed on the piston plate 28. The piston rod 29 is slidably connected to the piston cylinder 27. A fourth spring 30 is connected between the piston plate 28 and the piston cylinder 27. The piston cylinder 27 is connected to the sealing airbag 13 through a pipeline.

[0035] The amplification component includes a water outlet 271, which is fixed to one side of the piston cylinder 27 and is connected to a water pipe 272. The scale display column 14 is fixed to the anvil 32, and a cavity 273 is defined on the scale display column 14. One end of the water pipe 272 is connected to the scale display column 14, and the water pipe 272 is communicated with the cavity 273.

[0036] refer to Figure 1-Figure 3When loading the harmonica reeds before testing their thickness, several harmonica reeds are placed in the several placement slots 4 on the annular loading seat 3 in turn, and then the threaded rod 19 threadedly connected on the mounting block 101 is manually rotated, so that the threaded rod 19 can drive the wedge-shaped interference strip 8 connected in rotation at the end to move horizontally in the annular loading seat 3 during rotation, and the wedge-shaped interference strip 8 can achieve the purpose of interfering with the first interference ring 11 during movement, and the guide hole 17 provided on the first interference ring 11 is fitted on the first guide post 18 fixed on the annular loading seat 3, so that the interfered first interference ring 11 moves upward as a whole on the first guide post 18, which can achieve the purpose of pushing several first interference rods 15 to move vertically synchronously in the several placement slots 4, and the first spring 16 accumulates force, prompting the first push plate 5 to push the harmonica reeds in the placement slot 4 to move upward, so that the bottom surfaces of several harmonica reeds are slightly higher. When the second contact ring 21 is moved vertically on the sliding frame 20 fixed on the annular feeding seat 3, the second spring 22 stores force, and when the second contact ring 21 moves upward, the annular feeding seat 3 and the plurality of second contact wedges 26 are simultaneously contacted. Under the influence of the interference force, the second contact wedge 26 can be driven by the second contact rod 24 to move horizontally on the guide groove 6, and the third spring 25 stores force, so that the second push plate 7 pushes the harmonica reed on the first push plate 5 to automatically move horizontally to the sealing air bag 13 on the anvil 32, thereby achieving the purpose of loading a plurality of tested harmonica reeds at the same time; Due to the narrow width of the harmonica reed and the small contact area of ​​the upper end of the sealing airbag 13, the guide groove 6 can guide the movement of the harmonica reed, so that one end of the harmonica reed is supported on the sealing airbag 13 and the other end is located in the guide groove 6. This can solve the problem that the harmonica reed is prone to slipping off the sealing airbag 13 when placed manually, and can greatly improve the stability of the loading position of several tested harmonica reeds and the accuracy of thickness detection.

[0037] When measuring thickness, refer to Figures 1 to 7, first determine the upper and lower limits of the thickness tolerance of the qualified harmonica reed, and then rotate the micro-test screw 10 on the L-shaped ruler 9 to drive the test end of the micro-test screw 10 to move vertically downward and abut against the surfaces of several tested harmonica reeds. When the test end of the micro-test screw 10 continues to rotate, the test disc 31 can be prompted to continuously press down on several harmonica reeds, so that several sealing airbags 13 are squeezed at the same time, deformed and retracted into the circular groove 12 provided on the anvil 32, until the micro-test screw 10 stops moving. At this time, one of the harmonica reeds abuts against the surface of the anvil 32, limiting the downward position of the micro-test screw 10, and the micro-test screw 10 is locked by rotating the locking wrench 33 to avoid deviation when reading the detection value, thereby improving the accuracy of the harmonica reed thickness data reading; If the tested harmonica reed thickness is greater than the upper limit of the specified thickness numerical tolerance, the corresponding sealing airbag 13 will be squeezed first, and the deformation of the sealing airbag 13 will be large, causing the gas in the sealing airbag 13 to be compressed and then transported to the piston cylinder 27 through the pipeline. The pressure can push the piston plate 28 in the piston cylinder 27 and the piston rod 29 fixed on the piston plate 28 to move horizontally synchronously. When one end of the piston cylinder 27 is filled with water, the piston plate 28 can squeeze the water during its movement in the piston cylinder 27. The fourth spring 30 accumulates force, causing the water to be discharged through the water outlet 271 on one side of the piston cylinder 27, and flow into the cavity 273 in the scale display column 14 through the water pipe 272 for further use. The scale display column 14 is a transparent display column with water level scale lines on its surface, which facilitates the operator to observe the water level change in the scale display column 14 with the naked eye. When the thickness of the harmonica reed under test is greater than the upper limit of the specified thickness tolerance, the piston plate 28 moves a long distance in the piston cylinder 27, and the squeezed water can rise to a greater height in the cavity 273 in the scale display column 14. The cooperation of the water outlet 271, the water pipe 272, the scale display column 14 and the cavity 273 can amplify the deformation change of the sealing airbag 13, making it convenient to judge whether the thickness of the harmonica reed under test is greater than the upper limit of the specified thickness tolerance. If the tested harmonica reed thickness is within the lower limit of the specified thickness tolerance, the corresponding sealing airbag 13 will deform slightly when squeezed, and the pressure can push the piston plate 28 and the piston rod 29 fixed on the piston plate 28 to move in the piston cylinder 27, but the moving distance is small, so that the amount of water injected into the cavity 273 is small, and the water level change is small, which facilitates the judgment of whether the tested harmonica reed thickness is less than the upper limit of the specified thickness tolerance. If the tested harmonica reed thickness is between the upper and lower limits of the specified thickness tolerance, the amount of water injected into the cavity 273 is higher than the water level of the harmonica reed with a thickness within the lower limit of the specified thickness tolerance, and lower than the water level of the harmonica reed with a thickness within the upper limit of the specified thickness tolerance; After the test is completed, by observing the water level height of each scale display column 14, it is convenient to judge whether the thickness of the tested harmonica reed is between the upper and lower limits of the specified thickness value tolerance, and whether it is a qualified product.

[0038] When the test is completed, the test disc 31 moves upward, and the sealing airbag 13 returns to its original state. The fourth spring 30 connected between the piston plate 28 and the piston cylinder 27 releases the elastic force, causing the piston plate 28 to return to its original state and return the water in the scale display column 14 to the piston cylinder 27.

[0039] Example 2: This example is an improvement based on Example 1. For details, please refer to Figures 1 to 7 The present application also provides a technical solution for an amplification component, which includes a third interference wedge 274, which is fixed to one end of the piston rod 29, a mounting bracket 275 fixed to the anvil 32, and a seesaw 276 rotatably connected to the mounting bracket 275, the scale display column 14 is slidably connected to the anvil 32 through a fifth spring 277, and the lower end of the scale display column 14 is in conflict with one end of the seesaw 276, and the third interference wedge 274 is in conflict with the other end of the seesaw 276.

[0040] refer to Figure 5 If the tested harmonica reed thickness is greater than the upper limit of the specified thickness tolerance, and the deformation of the sealing airbag 13 is large, the gas in the sealing airbag 13 is compressed and then transported to the piston cylinder 27 through the pipeline. The pressure can push the piston plate 28 in the piston cylinder 27 and the piston rod 29 fixed on the piston plate 28 to move horizontally synchronously, and the third contact wedge 274 on the piston rod 29 moves a large distance, causing the third contact wedge 274 to contact one end of the rocker 276 rotatably connected to the mounting bracket 275. The interference causes the seesaw 276 to deflect, and the seesaw 276 pushes the scale display column 14 to move vertically on the anvil 32. The fifth spring 277 accumulates force, and when the scale display column 14 moves vertically on the anvil 32, the scale lines on the scale display column 14 also change. The deformation of the sealing airbag 13 is large, which increases the interference force of the third interfering wedge 274 on the piston rod 29. As a result, the deflection amplitude of the seesaw 276 is large, causing the scale display column 14 to move vertically a long distance on the anvil 32. Similarly, if the thickness of the tested harmonica reed is lower than the lower limit of the specified thickness numerical tolerance, the deformation of the sealing airbag 13 is small, so that the resistance force of the third contact wedge 274 on the piston rod 29 is small, which causes the deflection amplitude of the seesaw 276 to be small, so that the vertical movement height of the scale display column 14 on the anvil 32 is low. The horizontal movement distance of the piston plate 28 can be magnified by the vertical movement height of the scale display column 14, which makes it convenient to judge whether the thickness of the tested harmonica reed is between the upper and lower limits of the specified thickness numerical tolerance and whether it is a qualified product by observing the position height of each scale display column 14.

[0041] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A harmonica reed thickness detection device, comprising a base (1), characterized in that: A hollow test bench (2) is fixed on the base (1), an annular loading seat (3) is provided on the outer side of the hollow test bench (2), a plurality of placement grooves (4) equidistantly distributed on the circumference are provided on the annular loading seat (3), a first push plate (5) is provided in the placement groove (4), a guide groove (6) is provided on the placement groove (4), and a second push plate (7) is provided in the guide groove (6); An L-shaped ruler frame (9) is fixed on one side of the base (1), and a micro-measurement screw (10) is installed on the L-shaped ruler frame (9). A measuring anvil (32) is fixed on the hollow test table (2), and a plurality of circular grooves (12) equidistantly distributed around the circumference are opened on the measuring anvil (32), and a sealing airbag (13) is installed in the circular groove (12). A plurality of scale display columns (14) are provided above the hollow test table (2).

2. The harmonica reed thickness detection device according to claim 1, characterized in that: A plurality of first resisting rods (15) are provided in the annular loading seat (3). The first resisting rods (15) are elastically connected to the placement groove (4) via a first spring (16). The first push plate (5) is fixedly connected to the upper end of the first resisting rod (15).

3. The harmonica reed thickness detection device according to claim 2, characterized in that: A first contact ring (11) is provided in the annular loading seat (3), a guide hole (17) is provided on the first contact ring (11), a first guide column (18) is fixed on the annular loading seat (3), the first guide column (18) is slidably connected in the guide hole (17), and the lower end of the first contact rod (15) is against the first contact ring (11).

4. The harmonica reed thickness detection device according to claim 3, characterized in that: A mounting block (101) is fixed on the base (1), a threaded rod (19) is threadedly connected to the mounting block (101), an end of the threaded rod (19) is rotatably connected to a wedge-shaped contact strip (8), the wedge-shaped contact strip (8) is slidably connected to the annular loading seat (3), and one end of the wedge-shaped contact strip (8) contacts the first contact ring (11).

5. The harmonica reed thickness detection device according to claim 4, characterized in that: A sliding frame (20) is fixed on the circumferential surface of the annular loading seat (3), a second contact ring (21) is slidably connected to the sliding frame (20), a second spring (22) is connected between the second contact ring (21) and the sliding frame (20), and a first contact wedge (23) is fixed on the wedge-shaped contact strip (8).

6. The harmonica reed thickness detection device according to claim 5, characterized in that: A second interference rod (24) is fixed on the second push plate (7), and the second interference rod (24) is elastically connected to the guide groove (6) through a third spring (25). A second interference wedge (26) is fixed to one end of the second interference rod (24), and the second interference wedge (26) interferes with the first interference wedge (23).

7. The harmonica reed thickness detection device according to claim 1, characterized in that: A piston cylinder (27) is fixed on the measuring anvil (32), an amplifying assembly is provided between the piston cylinder (27) and the scale display column (14), a piston plate (28) is slidably connected in the piston cylinder (27), a piston rod (29) is fixed on the piston plate (28), the piston rod (29) is slidably connected to the piston cylinder (27), a fourth spring (30) is connected between the piston plate (28) and the piston cylinder (27), and the piston cylinder (27) is connected to the sealing airbag (13) through a pipeline.

8. The harmonica reed thickness detection device according to claim 7, characterized in that: The amplifying assembly comprises a water outlet (271), the water outlet (271) being fixed on one side of the piston cylinder (27), and a water pipe (272) being connected to the water outlet (271), the scale display column (14) being fixed on the measuring anvil (32), and a cavity (273) being provided on the scale display column (14), one end of the water pipe (272) being connected to the scale display column (14), and the water pipe (272) being in communication with the cavity (273).

9. The harmonica reed thickness detection device according to claim 7, characterized in that: The amplification assembly includes a third abutting wedge (274), the third abutting wedge (274) is fixed to one end of the piston rod (29), a mounting bracket (275) is fixed to the anvil (32), a seesaw (276) is rotatably connected to the mounting bracket (275), the scale display column (14) is slidably connected to the anvil (32) via a fifth spring (277), and the lower end of the scale display column (14) abuts against one end of the seesaw (276), and the third abutting wedge (274) abuts against the other end of the seesaw (276).

10. The harmonica reed thickness detection device according to claim 1, characterized in that: A test disc (31) is fixed to the test end of the micro-test screw (10), and the test disc (31) is opposite to the test anvil (32). A locking wrench (33) for locking the micro-test screw (10) is provided on the L-shaped ruler frame (9).

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