Laser detection fixture for speaker housing size

Abstract

The present invention relates to the technical field of size detection, and discloses a laser detection jig for the size of a sound shell, including a plate one and a plate two, wherein the outer sides of the plate one and the plate two are connected with arc strips, a connecting piece is connected to the plate one, an upper slide bar is arranged below the plate two, the upper slide bar is connected to the lower slide bar through the connecting strip, a support column is connected to the upper slide bar, a fixed frame is connected to the upper slide bar, a side plate is connected to the fixed frame, a button block is connected to the lower end of the side plate, a distance measuring button is connected to the button block, and a slide groove is provided on the side plate. The present invention utilizes a translation block driven by a telescopic cylinder, and cooperates with a traction rod to achieve the effect of driving the plate one and the plate two to flip, so that the sound placed on the plate one and the plate two can be close to the plate surface, and the placement position of the sound is repositioned by flipping, and the shell size is detected in cooperation with a laser head, and both sides are detected simultaneously, so as to reduce the size measurement error existing in the structural movement when the shell is corrected.

Description

Technical Field

[0001] The invention relates to the technical field of size detection, and in particular to a laser detection jig for the size of an acoustic shell. Background Art

[0002] Audio refers specifically to an audio system that produces sound through a combination of electrical equipment. The development history of audio technology can be divided into four stages: electron tubes, transistors, integrated circuits, and field effect transistors.

[0003] During the production of speakers, in order to inspect the production and processing quality of the speakers, it is often necessary to measure the size of the speaker shell. When measuring the size of a complex speaker shell, a scanning device is often used to perform a full-scale size scan of the speaker. This size detection method is time-consuming, but has high detection accuracy. It is often used for size measurement during the initial modeling of the speaker. However, when the speaker is mass-produced, this size detection method has the problem of low efficiency. When the speaker has a simple structure, the speaker needs to be transported to a measuring and detection station, and the size of the speaker in a certain direction can be measured by laser ranging. However, due to the offset of the speaker during transportation, there is an error in the laser measurement of the speaker size in this state, and manual correction of the speaker structure is required. However, the manual correction is inefficient and has certain errors. That is, there is a lack of effective correction equipment to complete the shell size measurement operation during the production and transportation of the speaker.

[0004] Based on this, a laser detection fixture for the size of the speaker shell is proposed. Summary of the invention

[0005] The object of the present invention is to propose a laser detection jig for the size of a sound housing in order to solve the above-mentioned problem.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A laser detection jig for the size of a sound housing comprises a first plate and a second plate, wherein the first plate and the second plate are connected with arc strips on the outside, a connecting piece is connected to the first plate, an upper slide bar is arranged below the second plate, the upper slide bar is connected with a lower slide bar through a connecting strip, and a support column is connected to the upper slide bar;

[0008] The upper slide rod is connected to a fixed frame, the fixed frame is connected to a side panel, the lower end of the side panel is connected to a button block, the button block is connected to a ranging button, a slide groove is provided on the side panel, a slide bar is connected to the side panel, a clamping block is slidably connected to the slide bar, one side of the clamping block is connected to a translation rail, a slider is slidably connected to the translation rail, a moving shaft is rotatably connected to the slider, a laser head and a deflection plate are connected to the moving shaft, one end of the laser head is connected to a connecting line, the deflection plate is connected to a sliding shaft, and the connecting plate is connected to a transmission mechanism which can first drive the audio structure to be close to plate one and plate two, and then drive the laser head to rotate and displace to achieve ranging of the size of the audio shell.

[0009] Preferably, the plate one and the plate two are vertically connected to each other, and the connecting piece is arranged between the arc strips.

[0010] Preferably, the sliding shaft and the movable shaft are sleeved with a sleeve, and the sleeve is connected to the sliding groove.

[0011] Preferably, the translation rail and the slide bar are perpendicular to each other, and two slide bars and two clamping blocks are provided, and the slide bars and the clamping blocks correspond one to one.

[0012] Preferably, the transmission mechanism includes a telescopic cylinder, the telescopic end of the telescopic cylinder is connected to a translation block, the translation block is connected to an articulated frame 2, a transmission frame and a limit block, the telescopic cylinder is connected to a bracket, the bracket is connected to a fixed rod, the other end of the fixed rod is connected to a fixed block, the fixed block is connected to an articulated frame 1, and the articulated frame 1 is rotatably connected to a traction rod.

[0013] Preferably, one end of the connecting piece is rotatably connected to the second hinge frame, and the limiting block is slidably connected to the fixing rod.

[0014] Preferably, the fixing block is slidably connected to the lower sliding rod, a screw is threadedly connected to the fixing block, and one end of the screw abuts against the lower sliding rod.

[0015] Preferably, one end of the traction rod is rotatably connected to one end of the connecting plate, and the lower end of the movable shaft is rotatably connected to the transmission frame.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0017] 1. The present application adopts a translation block structure, in which the translation block is driven by a telescopic cylinder and cooperates with a traction rod to realize the effect of driving plate one and plate two to flip, so that the speakers placed on plate one and plate two can be close to the plate surface, and the speakers are repositioned by flipping, and the shell size is detected by a laser head, and both sides are detected simultaneously, thereby reducing the dimensional measurement error caused by structural movement when the shell is corrected.

[0018] 2. This application uses a transmission frame structure to drive the laser head to move during the flipping process of the speaker shell. After the speaker is completely flipped, the laser head can be perpendicular to the two sides of the speaker. This measurement method will not be affected by the position change after the speaker is corrected, and the size detection accuracy is high. By pressing the distance measurement button on the translation rail, the laser head is turned on when measuring and turned off when not measuring. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It shows a schematic diagram of the overall structure of the detection fixture provided according to an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the structure of a detection fixture provided in an embodiment of the present invention when viewed from above is shown;

[0021] Figure 3 A schematic diagram of an exploded structure of a translation block connection provided according to an embodiment of the present invention is shown;

[0022] Figure 4 It shows a schematic structural diagram of a traction rod connection provided by an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of an exploded structure of a moving shaft connection provided according to an embodiment of the present invention is shown.

[0024] Legend:

[0025] 1. Plate 1; 2. Plate 2; 3. Upper slide bar; 4. Connecting strip; 5. Lower slide bar; 6. Support column; 7. Telescopic cylinder; 8. Bracket; 9. Fixed frame; 10. Side plate; 11. Slide groove; 12. Laser head; 13. Connecting line; 14. Arc bar; 15. Connecting piece; 16. Tow bar; 17. Fixed rod; 18. Translation block; 19. Limit block; 20. Transmission frame; 21. Fixed block; 22. Screw; 23. Articulated frame 1; 24. Articulated frame 2; 25. Slide bar; 26. Button block; 27. Distance measuring button; 28. Clamping block; 29. ​​Slider; 30. Moving shaft; 31. Deflection plate; 32. Sleeve; 33. Sliding shaft; 34. Translation rail. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figure 1-5 , the present invention provides a technical solution:

[0028] The laser detection jig for the size of a sound shell includes a plate 1 and a plate 2. The initial state is that the plate 1 is in a vertical state and the plate 2 is in a horizontal state. When the sound size detection is completed, the plate 1 is in a horizontal state and the plate 2 is in a vertical state. The outer sides of the plate 1 and the plate 2 are connected with an arc bar 14. The arc bar 14 has an L-shaped structure, and the arc bar 14 cooperates with the upper slide bar 3 to improve the stability of the overall structure during the flipping process of the plate 1 and the plate 2, and avoid the problem of structural deviation. The plate 1 is connected with a connecting piece 15, and the connecting piece 15 is connected to the middle position of one side of the plate 1. The upper slide bar 3 is arranged below the plate 2, and the upper slide bar 3 is connected to the lower slide bar 5 through the connecting strip 4. The upper slide bar 3 is connected with a support column 6, and the stability of the connection between the upper slide bar 3 and the lower slide bar 5 is ensured by setting the support column 6;

[0029] The upper slide bar 3 is connected to a fixing frame 9, and the fixing frame 9 is connected to a side plate 10. The fixing frame 9 ensures the firmness of the connection of the side plate 10. The lower end of the side plate 10 is connected to a button block 26, and the button block 26 is connected to a distance measuring button 27. When the distance measuring button 27 is pressed, the laser head 12 stops the distance measuring operation, and when the distance measuring button 27 is not pressed, the laser head 12 starts to move. After the data measured by the laser head 12 is stable, the measured data is recorded. A slide groove 11 is provided on the side plate 10, and a slide bar 25 is connected to the side plate 10. A clamping block 28 is slidably connected to the slide bar 25. A translation rail 34 is connected to one side of the clamping block 28. The translation rail 34 slides A slider 29 is connected, and a moving shaft 30 is rotatably connected to the slider 29. The moving shaft 30 is connected to a laser head 12 and a deflection plate 31. In the initial state, the laser head 12 structure and the upper slide bar 3 are parallel to each other. When measuring the shell size, the laser head 12 is perpendicular to the upper slide bar 3. One end of the laser head 12 is connected to a connecting line 13, and the connecting line 13 is used to transmit the measured distance data. The deflection plate 31 is connected to a sliding shaft 33. The sliding shaft 33 and the moving shaft 30 are both connected to the slide groove 11. The connecting plate 15 is connected with a transmission mechanism that can first drive the sound structure to be close to plate 1 and plate 2, and then drive the laser head 12 to rotate and displace to achieve distance measurement of the sound shell size.

[0030] Specifically, Figure 1 and Figure 2 As shown, the board 1 and the board 2 are vertically connected to each other, and the connecting piece 15 is arranged between the arc strips 14. The flipping of the sound structure thereon is achieved through the vertical structure, and the symmetrical structure ensures that the board 1 and the board 2 remain stable when they move.

[0031] Specifically, Figure 5As shown, a sleeve 32 is sleeved on the sliding shaft 33 and the movable shaft 30, and the sleeve 32 is connected to the slide groove 11. The sleeve 32 structure is provided to reduce the resistance to the movement of the sliding shaft 33 and the movable shaft 30. There is rolling contact between the sleeve 32 and the slide groove 11, which improves the stability of the structural movement and reduces friction.

[0032] Specifically, Figure 5 As shown, the translation rail 34 and the slide bar 25 are perpendicular to each other, and two slide bars 25 and two clamping blocks 28 are provided. The slide bars 25 and the clamping blocks 28 correspond one to one. By setting a sliding connection between the clamping blocks 28 and the slide bar 25, the friction force of the movement between the structures is reduced, so that the transmission frame 20 can easily drive the clamping blocks 28 to move along the slide bar 25.

[0033] Specifically, Figure 3 As shown, the transmission mechanism includes a telescopic cylinder 7, which can be controlled manually or by a sensor, that is, a pressure sensor can be set on the plate 2, and when it is detected that the sound is placed on the plate 2, the telescopic cylinder 7 automatically contracts. When the sound is taken off, the telescopic cylinder 7 starts to extend and returns to the initial state, thereby improving the automation degree of the size detection fixture. The telescopic end of the telescopic cylinder 7 is connected with a translation block 18, and the translation block 18 is connected with an articulated frame 24, a transmission frame 20 and a limit block 19. The telescopic cylinder 7 is connected with a bracket 8, and the bracket 8 is used to fix the telescopic cylinder 7. At the same time, both sides of the bracket 8 are mounted on the lower sliding rod 5, which reduces the burden of the connection of the fixed rod 17. The bracket 8 is connected with a fixed rod 17, and the other end of the fixed rod 17 is connected with a fixed block 21, and the fixed block 21 is connected with an articulated frame 1 23. The articulated frame 1 23 is rotatably connected with a traction rod 16, and the two ends of the traction rod 16 are rotatably connected to the connecting piece 15 and the articulated frame 1 23 respectively.

[0034] Specifically, Figure 2 and Figure 4 As shown, one end of the connecting piece 15 is rotatably connected to the hinge frame 24, and the limit block 19 is slidably connected to the fixed rod 17. The limit block 19 is provided to limit the translation block 18, thereby ensuring that the translation block 18 will not deviate during movement, thereby improving the stability of the structural movement.

[0035] Specifically, Figure 2 As shown, the fixed block 21 is slidably connected to the lower sliding rod 5, and a screw 22 is threadedly connected to the fixed block 21. One end of the screw 22 abuts against the lower sliding rod 5. By setting the screw 22 structure, the fixed block 21 structure is movable, that is, the initial position of the board 1 can be changed, so that the speaker can be easily transported to the board 2 2 in the initial state, and the structure is adjustable.

[0036] Specifically, Figure 2As shown, one end of the traction rod 16 is rotatably connected to one end of the connecting plate 15, and the lower end of the movable shaft 30 is rotatably connected to the transmission frame 20. By setting the transmission frame 20, during the flipping process of the plate 1, the movable shaft 30 moves at the same time. When the sliding shaft 33 moves into the other part of the slide groove 11, the movable shaft 30 will rotate at one end of the transmission frame 20, and when the movable shaft 30 just enters the other part of the slide groove 11, the structure stops moving. At this time, the laser head 12 structure is just perpendicular to the speaker housing.

[0037] In summary, the laser detection jig for the size of the speaker shell provided in this embodiment is used to measure the shell size of a speaker with a simple structure. Since the speaker with a simple structure is often in a block structure, when it is necessary to detect it, the speaker is placed on the board 2, wherein the method of transporting the speaker includes manual or mechanical equipment, wherein manual placement or mechanical placement does not limit the placement position, that is, as long as the speaker is placed on the board 2, there is no restriction on the specific position on the board 2, and when the board 2 is flipped from a horizontal state to a vertical state, the speaker can be removed through the corresponding structure, that is, the measurement operation of the speaker shell size is completed. This test method is simple and greatly improves the measurement efficiency of the speaker shell size. The detection jig can complete the thickness detection of the shell surface by laser irradiation;

[0038] After the placement of the speaker is completed, the telescopic cylinder 7 is controlled to shrink. At this time, the translation block 18 slides on the lower slide rod 5, and the hinge frame 24 is used to pull one end of the connecting piece 15 to move. At this time, the other end of the connecting piece 15 is limited by the traction rod 16, and the plate 11 fixedly connected to the connecting piece 15 is pulled to deflect. At this time, the two side surfaces of the speaker placed on the plate 2 are respectively in contact with the plate 11 and the plate 22, completing the correction operation before measuring the size of the speaker. At this time, when performing size detection, the irradiation surface of the laser head 12 can be perpendicular to the laser head 12. By arranging the laser head 12 structure on both sides of the speaker at the same time, the positioning effect of the positions of the two sides of the speaker is achieved, that is, the changes before and after the transportation of the speaker and the correction of the speaker will not interfere with the measurement of its shell size.

[0039] During the process of the translation block 18 moving to realize the flipping of the sound system, the translation block 18 can drive the transmission frame 20 to move, and one end of the transmission frame 20 drives the moving shaft 30 to move horizontally. At this time, the sleeve 32 structure moves on the slide groove 11, and the translation rail 34 structure is away from the distance measuring button 27. At this time, the distance measuring button 27 is not pressed, and the laser head 12 starts to operate. When the distance measuring button 27 is pressed, the laser head 12 stops operating. The laser head 12 is in a moving state. The distance data measured in this state is unstable, and the data in this state will not be recorded. Only when the slide shaft 33 enters the slide groove, the distance data will be recorded. 11, the deflection plate 31 deflects around the moving axis 30 until one end of the laser head 12 is perpendicular to the sound shell. At this time, the laser head 12 stops moving and the sound structure remains fixed. At this time, the distance data measured by the laser head 12 remains unchanged. This data is the required data. The shell size can be measured by converting the distance data detected by the two laser heads 12. The equipment can realize quick size measurement of simple sound structures, has no restrictions on transportation and placement before sound size measurement, can play the role of deviation correction measurement, and greatly improves the accuracy of size measurement.

[0040] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A laser detection jig for the size of a sound housing, comprising a plate 1 (1) and a plate 2 (2), characterized in that: The outer sides of the plate 1 (1) and the plate 2 (2) are connected with arc strips (14); the plate 1 (1) is connected with a connecting piece (15); an upper sliding rod (3) is arranged below the plate 2 (2); the upper sliding rod (3) is connected with a lower sliding rod (5) via a connecting strip (4); and the upper sliding rod (3) is connected with a supporting column (6); The upper slide bar (3) is connected to a fixing frame (9), the fixing frame (9) is connected to a side plate (10), the lower end of the side plate (10) is connected to a button block (26), the button block (26) is connected to a distance measuring button (27), a slide groove (11) is provided on the side plate (10), a slide bar (25) is connected to the side plate (10), a clamping block (28) is slidably connected to the slide bar (25), a translation rail (34) is connected to one side of the clamping block (28), and the translation rail (34) A slider (29) is slidably connected to the upper portion, a movable shaft (30) is rotatably connected to the slider (29), a laser head (12) and a deflection plate (31) are connected to the movable shaft (30), one end of the laser head (12) is connected to a connecting wire (13), the deflection plate (31) is connected to a sliding shaft (33), and the connecting plate (15) is connected to a transmission mechanism capable of first driving the sound structure to be closely attached to the first plate (1) and the second plate (2), and then driving the laser head (12) to rotate and displace to achieve distance measurement of the size of the sound housing; The translation rail (34) and the slide bar (25) are perpendicular to each other, and two slide bars (25) and two clamping blocks (28) are provided, and the slide bars (25) and the clamping blocks (28) correspond one to one; The transmission mechanism comprises a telescopic cylinder (7), the telescopic end of the telescopic cylinder (7) is connected to a translation block (18), the translation block (18) is connected to an articulated frame 2 (24), a transmission frame (20) and a limit block (19), the telescopic cylinder (7) is connected to a bracket (8), the bracket (8) is connected to a fixed rod (17), the other end of the fixed rod (17) is connected to a fixed block (21), the fixed block (21) is connected to an articulated frame 1 (23), and the articulated frame 1 (23) is rotatably connected to a traction rod (16).

2. The laser detection jig for the size of the acoustic housing according to claim 1 is characterized in that: The plate one (1) and the plate two (2) are vertically connected to each other, and the connecting piece (15) is arranged between the arc strips (14).

3. The laser detection jig for the size of the acoustic housing according to claim 1, characterized in that: A sleeve (32) is sleeved on the sliding shaft (33) and the movable shaft (30), and the sleeve (32) is connected to the sliding groove (11).

4. The laser detection jig for the size of the acoustic housing according to claim 1, characterized in that: One end of the connecting piece (15) is rotatably connected to the second hinge frame (24), and the limiting block (19) is slidably connected to the fixing rod (17).

5. The laser detection jig for the size of the acoustic housing according to claim 1, characterized in that: The fixing block (21) is slidably connected to the lower sliding rod (5), a screw (22) is threadedly connected to the fixing block (21), and one end of the screw (22) abuts against the lower sliding rod (5).

6. The laser detection jig for the size of the acoustic housing according to claim 1, characterized in that: One end of the traction rod (16) is rotatably connected to one end of the connecting plate (15), and the lower end of the movable shaft (30) is rotatably connected to the transmission frame (20).

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