A microphone welding positioning tool

Abstract

The present application relates to a microphone welding positioning tool, and relates to the technical field of welding tool, which includes a base plate, a positioning frame, a positioning plate and a positioning grid plate, wherein the positioning frame is arranged on the base plate, two positioning plates are arranged opposite to each other, and are slidably arranged in the positioning frame in the direction of approaching or moving away from each other, and there are multiple positioning grid plates, and they are symmetrically arranged on the side of the two positioning plates moving away from each other, the positioning grid plates are slidably connected to the positioning plates, and the sliding direction is perpendicular to the sliding direction of the positioning plates, and the grid rods on the positioning grid plates are slidably arranged in the positioning sliding holes provided on the positioning frame in any direction parallel to the base plate, and the positioning frame, the positioning plate and the positioning grid plates enclose multiple microphone positioning areas. The present application has the effect of improving the versatility of welding positioning tool.

Description

Technical Field

[0001] The present application relates to the technical field of welding tooling, and in particular to a microphone welding positioning tooling. Background Art

[0002] A microphone is an energy conversion device that converts sound signals into electrical signals. During the production process, wires need to be welded. Due to the small size of the microphone, welding tooling is required to assist in positioning.

[0003] The existing microphone welding positioning tooling includes a positioning plate and a push rod. The positioning plate is provided with a plurality of through-step holes, and the step holes are matched with the gap of the microphone. When in use, the microphone is placed in the step hole, and the worker holds the tweezers to clamp the wire, so that the wire is welded on the microphone, and then the worker uses the push rod to push the microphone out of the step hole to complete the microphone welding operation.

[0004] Since microphones come in different sizes, it is difficult to position microphones of different sizes by relying on stepped holes of fixed sizes, which results in poor versatility of the welding positioning tooling. Summary of the invention

[0005] In order to improve the versatility of the welding positioning tool and enable the welding positioning tool to position microphones of different sizes, the present application provides a microphone welding positioning tool.

[0006] The present application provides a microphone welding positioning tool, which adopts the following technical solution:

[0007] A microphone welding positioning tool comprises a base plate, a positioning frame, a positioning plate and a positioning grid plate. The positioning frame is arranged on the base plate. Two positioning plates are arranged opposite to each other and are slidably arranged in the positioning frame in directions approaching or moving away from each other. There are multiple positioning grid plates and they are symmetrically arranged on the sides of the two positioning plates moving away from each other. The positioning grid plates are slidably connected to the positioning plates, and the sliding direction is perpendicular to the sliding direction of the positioning plates. The grid rods on the positioning grid plates are slidably arranged in positioning sliding holes provided in the positioning frame in any direction parallel to the base plate. The positioning frames, the positioning plates and the positioning grid plates enclose multiple microphone positioning areas.

[0008] By adopting the above technical solution, since the positioning plate and the positioning grid can adjust their positions in the positioning frame by sliding, the sizes of all microphone positioning areas can be adjusted by sliding the positioning plate and the positioning grid, so that the microphone positioning area can adapt to microphones of different sizes, thereby improving the versatility of the welding positioning tooling and enabling the welding positioning tooling to position microphones of different sizes.

[0009] Optionally, the two positioning plates and the plurality of positioning grid plates are commonly connected with an adjustment component, the adjustment component comprising a first spring, a first oil cylinder, a second spring, a second oil cylinder, a third spring and a third oil cylinder, the first spring is arranged between the two positioning plates and is used to drive the two positioning plates to slide in a direction away from each other, two first oil cylinders are arranged and correspond to the positioning plates one by one, the first oil cylinder is fixedly connected to the positioning frame, the movable end of the first oil cylinder is fixedly connected to the positioning plate, and when the two positioning plates are close to each other, the first oil cylinder contracts;

[0010] A slip ring is provided on the sliding sleeve of the part of the positioning grid plate outside the positioning frame, and the slip ring is slidably connected with the positioning frame along the sliding direction of the positioning grid plate relative to the positioning plate. Two second springs are provided, and they correspond to the two positioning grid plates close to one end of the positioning plate respectively. The second spring is located on the side of the positioning grid plate away from the adjacent positioning grid plate. The second spring is provided between the slip ring and the positioning frame, and is used to drive the slip ring to slide toward the end of the positioning plate close to itself;

[0011] Two second oil cylinders are provided, and they correspond to the second springs one by one. The second oil cylinders are fixedly connected to the positioning frame, and the movable end of the second oil cylinder is fixedly connected to the slip ring; multiple third springs and third oil cylinders are provided, and they are respectively arranged between two adjacent slip rings. The third spring is used to drive the two adjacent slip rings to slide in a direction close to each other. The third oil cylinder is fixedly connected to one of the slip rings, and the movable end of the third oil cylinder is fixedly connected to the other slip ring;

[0012] The first oil cylinder corresponds to the second oil cylinder one by one, the rodless chamber of the first oil cylinder is connected with the rodless chamber of the second oil cylinder, and hydraulic oil flows therein, the rod chamber of the second oil cylinder is connected with the rodless chamber of the third oil cylinder adjacent thereto, and hydraulic oil flows therein, and in the direction away from the second oil cylinder, between two adjacent third oil cylinders, the rod chamber of the preceding third oil cylinder is connected with the rodless chamber of the succeeding third oil cylinder, and hydraulic oil flows therein, and the first oil cylinder, the second oil cylinder and the third oil cylinder are of the same type of oil cylinders.

[0013] By adopting the above technical solution, driven by the elastic force of the first spring, the second spring and the third spring, the positioning plate and the positioning grid plate can enclose a microphone positioning area of ​​the minimum size. When the size of the microphone positioning area needs to be adjusted to increase, the two positioning plates are slid toward each other, and the positioning plate causes the first spring to accumulate elastic force, and the first oil cylinder, the second oil cylinder and the third oil cylinder drive the plurality of positioning grid plates to slide. During the sliding process, the positioning grid plate causes the second spring and the third spring to accumulate elastic force. Since the first oil cylinder, the second oil cylinder and the third oil cylinder are the same oil cylinders, each microphone positioning area can be adjusted to a minimum size. After placing the microphone in the microphone positioning area, loosen the two positioning plates, and driven by the elastic force of the first spring, the second spring and the third spring, the positioning grid, the positioning plate and the positioning frame can clamp the microphone to achieve clamping and positioning of the microphone, so that the sizes of all microphone positioning areas are easy to adjust synchronously, and the adjustment amount is easy to keep consistent, which also makes it easy to adjust the microphone positioning area in proportion to meet the adjustment needs of the circular shape of the microphone.

[0014] Optionally, a driving assembly is arranged between the two positioning plates, and the driving assembly includes a rack and a gear. Two racks are provided and correspond one to one with the positioning plates. The racks are fixedly connected to the positioning plates and are arranged along the sliding direction of the positioning plates. The gear is located between the two racks and meshes with both racks. The gear is rotationally connected to the positioning frame.

[0015] By adopting the above technical solution, since the gear can drive the two racks to move synchronously and keep the moving distance consistent, the sliding strokes of the two positioning plates can be easily kept consistent by rotating the gear.

[0016] Optionally, the gear is coaxially fixedly connected with a worm wheel, the worm wheel is meshed with a worm, the worm is rotationally connected to the positioning frame, and the transmission between the worm and the worm wheel has a self-locking function.

[0017] By adopting the above technical solution, the gears are driven to rotate by the worm and worm wheel with a self-locking function, so that the gears are not easy to rotate freely, so that the adjustment state of the microphone positioning area is easy to maintain, and the microphone is easy to place in the microphone positioning area; by rotating the worm, the positioning grid, the positioning plate and the positioning frame can be driven to clamp the microphone, so that the clamping state of the microphone is not easy to loosen.

[0018] Optionally, one end of the worm shaft is coaxially fixedly connected with a handwheel.

[0019] By adopting the above technical solution, the worm is rotated by a hand wheel, making the rotation of the worm more convenient.

[0020] Optionally, a wire positioning assembly is provided on the positioning frame, and the wire positioning assembly includes a positioning block. There are multiple positioning blocks, and each of the positioning blocks corresponds to the microphone positioning area. The positioning block is slidably arranged on a side of the positioning frame away from the bottom plate, and two positioning grooves for placing the wires are provided on the positioning block.

[0021] By adopting the above technical solution, sliding the positioning block, adjusting the two positioning grooves to be aligned with the two welding points on the microphone, placing the wire in the positioning groove for welding, it is helpful to accurately position the wire and the welding point on the microphone, and improve the welding quality of the wire and the microphone.

[0022] Optionally, the positioning block is fixedly connected to a support frame, which is slidably connected to the positioning frame. A clamping plate is slidably provided on the support frame in a direction approaching or moving away from the positioning block. A clamping bolt is threaded through the clamping plate, and the end of the clamping bolt is rotatably connected to the positioning block.

[0023] By adopting the above technical solution, after the wire is placed in the positioning groove, the clamping bolt is rotated. During the process of rotating relative to the positioning block, the clamping bolt can drive the clamping plate to slide closer to the positioning block, so that the clamping plate clamps the wire on the positioning block, thereby making it easy to fix the wire to the positioning block and improving the stability of the wire during welding.

[0024] Optionally, a fixing component is arranged between the base plate and the positioning frame, the fixing component includes a fixing bolt and a flexible fixing plate, at least two fixing bolts are arranged, all the fixing bolts are arranged along the circumference of the positioning frame, the fixing bolt threads are passed through the support plate fixed to the positioning frame, the end of the fixing bolt is rotatably connected to the base plate, the flexible fixing plate is fixed to one side of the base plate close to the positioning frame, and the flexible fixing plate is opposite to all microphone positioning areas.

[0025] By adopting the above technical solution, by turning all the fixing bolts, the bottom plate and the positioning frame can be brought closer to each other, so that the microphone can be squeezed onto the flexible fixing plate, and the compressed and deformed flexible fixing plate can fill the space between the side wall of the microphone and the positioning plate, the positioning grid plate and the positioning frame to achieve the covering and fixation of the microphone, thereby allowing the microphone to be in a stable state during welding.

[0026] Optionally, at least two guide rods are fixedly connected to the bottom plate, and at least two guide holes are opened on the positioning frame. The guide holes correspond to the guide rods one by one, and the guide rods are slidably inserted into the guide holes.

[0027] By adopting the above technical solution, the base plate slides with the positioning frame through the guide rod, so that the base plate and the positioning frame are not easily misaligned when approaching or moving away from each other, thereby making the fixing bolts more stable when tightening the base plate and the positioning frame.

[0028] Optionally, the support frame is fixedly connected with a slider, and all the sliders on each side of the positioning plate are slidably arranged in a dovetail groove provided on the positioning frame, and the fixing assembly further includes a fixed rubber box and an elastic rubber box;

[0029] Two fixed rubber boxes are provided and correspond one to one with the dovetail grooves. The fixed rubber boxes are embedded in the bottom of the dovetail grooves. Two elastic rubber boxes are provided and correspond one to one with the fixed rubber boxes. The elastic rubber boxes are fixed on the bottom plate and are arranged opposite to the side walls of the positioning frame. A connecting pipe is connected between the elastic rubber box and the fixed rubber box, and a fluid medium flows through the connecting pipe.

[0030] By adopting the above technical solution, when the positioning frame carries the microphone and is pressed on the flexible fixed plate, the positioning frame can be squeezed into the elastic rubber box at the same time, and the fluid medium in the elastic rubber box flows from the connecting pipe into the fixed rubber box after being pressurized. The fluid medium squeezes the fixed rubber box and presses it against the slider, so that the slider can press against the groove wall of the dovetail groove. At the same time, the fixed rubber box can protrude and squeeze on the two ends of the sliding direction of the slider under the squeeze of the fluid medium, so that the slider can be fixed to the positioning frame while being covered and fixed by the microphone, so that when positioning the wire, the position of the positioning block is not easy to change.

[0031] In summary, the present application includes at least one of the following beneficial technical effects:

[0032] 1. By setting the bottom plate, positioning frame, positioning plate and positioning grid plate, the size of the microphone positioning area can be adjusted, which improves the versatility of the welding positioning tooling and enables the welding positioning tooling to position microphones of different sizes;

[0033] 2. By setting the first spring, the first oil cylinder, the second spring, the second oil cylinder, the third spring and the third oil cylinder, the size of the microphone positioning area can be adjusted proportionally, and the adjustment amount of the size of all microphone positioning areas is kept consistent;

[0034] 3. By setting the positioning block, the support frame, the clamping plate and opening the positioning groove on the positioning block, the welding point between the wire and the microphone is easy to locate, thereby improving the welding quality of the wire;

[0035] 4. By setting the fixing bolts, the flexible fixing plate, the fixing rubber box and the elastic rubber box, the positions of the microphone head and the positioning block can be fixed synchronously. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0037] Figure 2 yes Figure 1 Magnified view at A in the middle;

[0038] Figure 3 is a schematic diagram of the structure of the wire positioning assembly;

[0039] Figure 4 It is a structural schematic diagram of the flexible fixing plate.

[0040] Description of reference numerals:

[0041] 1. Bottom plate; 11. Guide rod; 2. Positioning frame; 21. Positioning slide hole; 22. Support plate; 23. Guide hole; 24. Dovetail groove; 25. Positioning end; 3. Positioning plate; 4. Positioning grid plate; 41. Slip ring; 5. Adjustment assembly; 51. First spring; 52. First oil cylinder; 53. Second spring; 54. Second oil cylinder; 55. Third spring; 56. Third oil cylinder; 6. Drive assembly; 61. Rack; 62. Gear; 63. Worm gear; 64. Worm; 65. Handwheel; 7. Wire positioning assembly; 71. Positioning block; 711. Positioning groove; 72. Support frame; 721. Sliding block; 73. Clamping plate; 74. Clamping bolt; 8. Fixing assembly; 81. Fixing bolt; 82. Flexible fixing plate; 83. Fixed rubber box; 84. Elastic rubber box; 85. Connecting pipe. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-4 This application is described in further detail.

[0043] The present application embodiment discloses a microphone welding positioning tool. Figure 1 A microphone welding positioning tool includes a base plate 1, a positioning frame 2 arranged on the base plate 1, a positioning plate 3 slidably arranged in the positioning frame 2, and a positioning grid 4 slidably arranged on the positioning plate 3 and the positioning frame 2. The positioning frame 2, the positioning plate 3 and the positioning grid 4 form a microphone positioning area.

[0044] When in use, the positioning plate 3 and the positioning grid plate 4 are slid to adjust the size of the microphone positioning area so that the microphone positioning area can adapt to microphones of different sizes, thereby improving the versatility of the welding positioning tool and enabling the welding positioning tool to position microphones of different sizes.

[0045] Reference Figure 1 The bottom plate 1 is in the shape of a rectangular plate and is arranged horizontally. The positioning frame 2 is in the shape of a rectangular frame and is arranged horizontally. The positioning frame 2 is located directly above the bottom plate 1. The length direction of the positioning frame 2 is parallel to the length direction of the bottom plate 1. Circular guide holes 23 are opened at the four top corners of the positioning frame 2. Four guide rods 11 are fixedly connected to the top surface of the bottom plate 1. The guide rods 11 correspond to the guide holes 23 one by one and are adapted to each other. The guide rods 11 are slidably inserted into the guide holes 23.

[0046] The positioning plates 3 are rectangular plates, and two of them are arranged opposite to each other. The two positioning plates 3 are slidably arranged in the positioning frame 2 in the direction of approaching or moving away from each other. The positioning plates 3 are arranged vertically, and the length direction is parallel to the length direction of the positioning frame 2.

[0047] There are multiple positioning grid plates 4, and they are symmetrically arranged on the side away from each other of the two positioning plates 3. The positioning grid plates 4 are rectangular plates and are arranged vertically. The positioning grid plates 4 are perpendicular to the positioning plates 3. The positioning grid plates 4 are slidably connected to the positioning plates 3, and the sliding direction is perpendicular to the sliding direction of the positioning plates 3. The grid bars on the positioning grid plates 4 are arranged horizontally and are slidably arranged in any direction parallel to the bottom plate 1 in the positioning sliding holes 21 opened on the side walls of the positioning frame 2. The positioning sliding holes 21 are rectangular and penetrate the side walls of the positioning frame 2. The length direction of the positioning sliding holes 21 is parallel to the length direction of the positioning frame 2. The positioning frame 2, the positioning plates 3 and the positioning grid plates 4 enclose multiple microphone positioning areas.

[0048] The two positioning plates 3 and the plurality of positioning grid plates 4 are commonly connected with an adjusting assembly 5 . The adjusting assembly 5 includes a first spring 51 , a first oil cylinder 52 , a second spring 53 , a second oil cylinder 54 , a third spring 55 and a third oil cylinder 56 .

[0049] One end of the positioning frame 2 in the length direction is set as the positioning end 25, and two first springs 51 are provided and are both located between the two positioning plates 3, one of the first springs 51 is set close to the positioning end 25 of the positioning frame 2, and the other first spring 51 is set away from the positioning end 25 of the positioning frame 2, and the two ends of the first spring 51 are respectively fixedly connected to the two positioning plates 3, and the first spring 51 is used to drive the two positioning plates 3 to slide in a direction away from each other.

[0050] There are two first oil cylinders 52, and they correspond to the positioning plates 3 one by one. The two first oil cylinders 52 are both located between the two positioning plates 3, and are both fixedly connected to the inner wall of the positioning frame 2 near the positioning end 25. The two first oil cylinders 52 are arranged in the vertical direction, and the movable end of the first oil cylinder 52 is fixedly connected to the positioning plate 3. The extension and retraction direction of the first oil cylinder 52 is consistent with the sliding direction of the positioning plate 3. The rod cavity of the first oil cylinder 52 is provided with an air hole connected to the outside world. When the two positioning plates 3 approach each other, the first oil cylinder 52 contracts.

[0051] A slip ring 41 is slidably sleeved on the portion of the positioning grid plate 4 outside the positioning frame 2. The slip ring 41 is in the shape of a rectangular ring. The sliding direction of the slip ring 41 and the positioning grid plate 4 is parallel to the sliding direction of the positioning plate 3. The slip ring 41 is slidably connected to the outer wall of the positioning frame 2 along the sliding direction of the positioning grid plate 4 relative to the positioning plate 3.

[0052] Two second springs 53 are provided, and they correspond to the two positioning grids 4 close to the positioning end 25 of the positioning frame 2 respectively. The second spring 53 is located on the side of the positioning grid 4 away from the adjacent positioning grid 4. The second spring 53 is fixed between the slip ring 41 and the positioning frame 2, and is used to drive the slip ring 41 to slide toward the positioning end 25 of the positioning frame 2. Two second oil cylinders 54 are provided, and they correspond to the second springs 53 one by one. The second oil cylinder 54 is fixedly connected to the positioning frame 2, and the movable end of the second oil cylinder 54 is fixedly connected to the slip ring 41. The extension direction of the second oil cylinder 54 is consistent with the sliding direction of the slip ring 41.

[0053] There are multiple third springs 55 and third oil cylinders 56, and they are respectively arranged between two adjacent slip rings 41. The third spring 55 is fixed between two adjacent slip rings 41, and is used to drive the two adjacent slip rings 41 to slide towards each other. The third oil cylinder 56 is fixedly connected to the slip ring 41 close to the positioning end 25 of the positioning frame 2, and the movable end of the third oil cylinder 56 is fixedly connected to the slip ring 41 far away from the positioning end 25 of the positioning frame 2. The extension and retraction direction of the third oil cylinder 56 is consistent with the sliding direction of the slip ring 41, and the rod cavity of the third oil cylinder 56 farthest from the second oil cylinder 54 is also provided with an air hole connected to the outside.

[0054] The first oil cylinder 52 corresponds to the second oil cylinder 54 one by one, the rodless cavity of the first oil cylinder 52 is connected with the rodless cavity of the second oil cylinder 54 through a pipeline, and hydraulic oil flows through the pipeline, the rod cavity of the second oil cylinder 54 is connected with the rodless cavity of the third oil cylinder 56 adjacent to itself through a pipeline, and hydraulic oil flows through the pipeline, and in the direction away from the second oil cylinder 54, between two adjacent third oil cylinders 56, the rod cavity of the front third oil cylinder 56 is connected with the rodless cavity of the rear third oil cylinder 56 through a pipeline, and hydraulic oil flows through the pipeline, and the first oil cylinder 52, the second oil cylinder 54 and the third oil cylinder 56 are the same type of cylinders.

[0055] Reference Figure 1 and Figure 2 A driving assembly 6 is arranged between the two positioning plates 3. The driving assembly 6 includes a rack 61, a gear 62, a worm wheel 63 and a worm 64. Two racks 61 are arranged, and correspond to the positioning plates 3 one by one. The two racks 61 are both located between the two positioning plates 3 and are both located in the middle of the positioning frame 2. One end of the rack 61 is fixedly connected to the positioning plate 3, and the rack 61 is arranged along the sliding direction of the positioning plate 3; the gear 62 is located between the two racks 61 and meshes with the two racks 61. The gear 62 is rotationally connected to the positioning frame 2.

[0056] The worm wheel 63 is coaxially fixedly connected with the gear 62, the worm wheel 63 is located above the gear 62, the worm 64 is meshed with the worm wheel 63, and both ends of the worm 64 in the axial direction are rotatably connected with the positioning frame 2, and the transmission of the worm 64 and the worm wheel 63 has a self-locking function. A hand wheel 65 is coaxially fixedly connected to one end of the worm 64 close to the positioning end 25 of the positioning frame 2.

[0057] When in use, the hand wheel 65 is turned, the hand wheel 65 drives the worm 64 to rotate, the worm 64 drives the worm wheel 63 to rotate, the worm wheel 63 drives the gear 62 to rotate, the gear 62 drives the two racks 61 to move, the two racks 61 drive the two positioning plates 3 to slide in the direction of approaching each other, the positioning plate 3 causes the first spring 51 to accumulate elastic force and drives the first oil cylinder 52 to contract, the first oil cylinder 52 drives the second oil cylinder 54 to extend, the second oil cylinder 54 drives the third oil cylinder 56 to extend, and the second spring 53 accumulates elastic force, the first third oil cylinder 56 drives the second third oil cylinder 56 to extend, and the third spring 55 accumulates elastic force, under the drive of the second oil cylinder 54 and the third oil cylinder 56, the positioning grid plate 4 slides to proportionally and synchronously adjust the sizes of all microphone positioning areas, thereby improving the versatility of the welding positioning tooling, so that the welding positioning tooling can position microphones of different sizes.

[0058] After the size of the microphone positioning area is adjusted, the microphone is placed in the microphone positioning area, and the hand wheel 65 is rotated in the opposite direction. Under the elastic force of the first spring 51, the second spring 53 and the third spring 55, the positioning grid plate 4, the positioning plate 3 and the positioning frame 2 clamp the microphone, thereby realizing the clamping of microphones of different sizes.

[0059] Reference Figure 1 and Figure 3 A wire positioning assembly 7 is provided on the positioning frame 2, and the wire positioning assembly 7 includes a positioning block 71, a support frame 72, a clamping plate 73 and a clamping bolt 74. There are multiple positioning blocks 71, support frames 72, clamping plates 73 and clamping bolts 74, and they are symmetrically arranged on both sides of the length direction of the positioning frame 2. The positioning blocks 71, support frames 72, clamping plates 73 and clamping bolts 74 all correspond to the microphone positioning areas one by one.

[0060] Reference Figure 3 The support frame 72 is in the shape of a rectangular frame and is vertically arranged. The top of the support frame 72 is open, and a slider 721 is fixedly connected to the bottom of the support frame 72. All sliders 721 on each side of the length direction of the positioning frame 2 are adapted to slide together in the dovetail groove 24 opened at the top of the side wall of the positioning frame 2, and the sliding direction of the slider 721 is parallel to the length direction of the positioning frame 2.

[0061] The positioning block 71 is in the shape of a rectangular block and is fixed at the bottom end inside the positioning frame 2. Two positioning grooves 711 are provided on the top surface of the positioning block 71. The positioning grooves 711 are in the shape of a semicircular arc, and the axial direction is perpendicular to the length direction of the positioning frame 2. There is a spacing between the two positioning grooves 711, and the positioning grooves 711 are used to place wires.

[0062] The clamping plate 73 is in the shape of a rectangular plate and is arranged horizontally. The clamping plate 73 is slidably arranged inside the support frame 72 in the direction of approaching or moving away from the positioning block 71. The clamping bolt 74 is arranged vertically and is threaded through the middle of the clamping plate 73. The bottom end of the clamping bolt 74 is rotatably connected to the positioning block 71, and the connection position of the clamping bolt 74 and the positioning block 71 is located between the two positioning grooves 711.

[0063] Reference Figure 3 and Figure 4 A fixing assembly 8 is provided between the bottom plate 1 and the positioning frame 2. The fixing assembly 8 includes a fixing bolt 81, a flexible fixing plate 82, a fixing rubber box 83 and an elastic rubber box 84. Two fixing bolts 81 are provided. The two fixing bolts 81 are respectively located at both ends of the length direction of the positioning frame 2. The fixing bolt 81 is vertically arranged, and the thread is penetrated on the support plate 22 fixedly connected to the outer wall of the positioning frame 2. The support plate 22 is horizontally arranged, and the bottom end of the fixing bolt 81 is rotatably connected to the bottom plate 1.

[0064] Reference Figure 4 The flexible fixing plate 82 is in the shape of a rectangular plate and is fixed on the top surface of the bottom plate 1. The flexible fixing plate 82 is adapted to the cross section inside the positioning frame 2 and is arranged opposite to the inside of the positioning frame 2. The flexible fixing plate 82 is opposite to all microphone positioning areas.

[0065] Reference Figure 1 and Figure 3 There are two fixed rubber boxes 83, which correspond to the dovetail groove 24 one by one. The fixed rubber box 83 is in a rectangular box shape and is embedded in the bottom of the dovetail groove 24. The fixed rubber box 83 abuts against the slider 721. There are two elastic rubber boxes 84, which correspond to the fixed rubber boxes 83 one by one. The elastic rubber box 84 is in a rectangular box shape and is fixed on the bottom plate 1. The two elastic rubber boxes 84 are symmetrically arranged on both sides of the length direction of the positioning frame 2. The elastic rubber box 84 is arranged opposite to the side wall of the positioning block 71 in the length direction. A connecting pipe 85 is connected between the elastic rubber box 84 and the fixed rubber box 83, and a fluid medium flows through the connecting pipe 85. The fluid medium can be air or hydraulic oil.

[0066] When in use, the support frame 72 is slid according to the size of the microphone so that the positioning groove 711 on the positioning block 71 is aligned with the welding point on the microphone, the wire is placed in the positioning groove 711, the clamping bolt 74 is rotated to make the clamping plate 73 clamp the wire in the positioning groove 711, and then the fixing bolt 81 is rotated. Under the guidance of the guide rod 11, the positioning frame 2 slides close to the bottom plate 1, so that the microphone is squeezed on the flexible fixing plate 82. The flexible fixing plate 82 covers the fixed microphone by deformation, and the positioning frame 2 is squeezed on the elastic rubber box 84, so that the fluid medium in the elastic rubber box 84 flows into the fixed rubber box 83. The fixed rubber box 83 fixes the slider 721 under the squeezing of the fluid medium, so that the microphone and the positioning block 71 are convenient for synchronous fixation.

[0067] The implementation principle of a microphone welding positioning tool in the embodiment of the present application is as follows: when in use, the hand wheel 65 is rotated, and the hand wheel 65 drives the two positioning plates 3 to slide in the direction of approaching each other through the worm 64, the worm wheel 63, the gear 62 and the rack 61. The positioning plate 3 drives the positioning grid plate 4 to slide through the first oil cylinder 52, the second oil cylinder 54 and the third oil cylinder 56, so that the sizes of all microphone positioning areas are adjusted proportionally and synchronously, and then the microphone is placed in the microphone positioning area, and the hand wheel 65 is rotated in the opposite direction. Under the elastic force of the first spring 51, the second spring 53 and the third spring 55, the positioning grid plate 4, the positioning plate 3 and the positioning frame 2 clamp the microphone. Slide the support frame 72, adjust the positioning groove 711 to be exactly opposite to the welding point on the microphone, place the wire in the positioning groove 711, rotate the clamping bolt 74, so that the clamping plate 73 clamps the wire in the positioning groove 711, rotate the fixing bolt 81, so that the microphone is squeezed on the flexible fixing plate 82, and the positioning frame 2 is squeezed on the elastic rubber box 84, the flexible fixing plate 82 covers the fixed microphone by deformation, and the elastic rubber box 84 fixes the slider 721 by fixing the rubber box 83, so that the welding positioning tool can clamp microphones of different sizes, thereby improving the versatility of the welding positioning tool and enabling the welding positioning tool to position microphones of different sizes.

[0068] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A microphone welding positioning tool, characterized by: The invention comprises a bottom plate (1), a positioning frame (2), a positioning plate (3) and a positioning grid plate (4); the positioning frame (2) is arranged on the bottom plate (1); two positioning plates (3) are arranged opposite to each other and are slidably arranged in the positioning frame (2) in a direction approaching or moving away from each other; a plurality of positioning grid plates (4) are arranged and are symmetrically arranged on the side of the two positioning plates (3) moving away from each other; the positioning grid plates (4) are slidably connected to the positioning plates (3) and the sliding direction is perpendicular to the sliding direction of the positioning plates (3); a grid bar on the positioning grid plate (4) is slidably arranged in a positioning sliding hole (21) provided on the positioning frame (2) in any direction parallel to the bottom plate (1); the positioning frame (2), the positioning plate (3) and the positioning grid plate (4) enclose a plurality of microphone positioning areas; The two positioning plates (3) and the plurality of positioning grid plates (4) are commonly connected with an adjustment assembly (5), the adjustment assembly (5) comprising a first spring (51), a first oil cylinder (52), a second spring (53), a second oil cylinder (54), a third spring (55) and a third oil cylinder (56), the first spring (51) being arranged between the two positioning plates (3) and used for driving the two positioning plates (3) to slide in a direction away from each other, two first oil cylinders (52) being arranged and corresponding to the positioning plates (3) one by one, the first oil cylinder (52) being fixedly connected to the positioning frame (2), the movable end of the first oil cylinder (52) being fixedly connected to the positioning plate (3), and when the two positioning plates (3) are close to each other, the first oil cylinder (52) is contracted; A slip ring (41) is slidably sleeved on a portion of the positioning grid plate (4) located outside the positioning frame (2); the slip ring (41) is slidably connected to the positioning frame (2) along a sliding direction of the positioning grid plate (4) relative to the positioning plate (3); two second springs (53) are provided, and correspond to two positioning grid plates (4) close to one end of the positioning plate (3); the second spring (53) is located on a side of the positioning grid plate (4) away from an adjacent positioning grid plate (4); the second spring (53) is provided between the slip ring (41) and the positioning frame (2), and is used to drive the slip ring (41) to slide toward the end of the positioning plate (3) close to itself; Two second oil cylinders (54) are provided, and correspond to the second springs (53) one by one. The second oil cylinders (54) are fixedly connected to the positioning frame (2), and the movable end of the second oil cylinder (54) is fixedly connected to the slip ring (41). A plurality of third springs (55) and third oil cylinders (56) are provided, and are respectively arranged between two adjacent slip rings (41). The third springs (55) are used to drive the two adjacent slip rings (41) to slide in a direction close to each other. The third oil cylinder (56) is fixedly connected to one of the slip rings (41), and the movable end of the third oil cylinder (56) is fixedly connected to the other slip ring (41). The first oil cylinder (52) corresponds to the second oil cylinder (54) one by one, the rodless chamber of the first oil cylinder (52) is connected to the rodless chamber of the second oil cylinder (54), and hydraulic oil flows therein; the rod chamber of the second oil cylinder (54) is connected to the rodless chamber of the third oil cylinder (56) adjacent thereto, and hydraulic oil flows therein; in a direction away from the second oil cylinder (54), between two adjacent third oil cylinders (56), the rod chamber of the first third oil cylinder (56) is connected to the rodless chamber of the second third oil cylinder (56), and hydraulic oil flows therein; the first oil cylinder (52), the second oil cylinder (54) and the third oil cylinder (56) are the same type of oil cylinders; A driving assembly (6) is arranged between the two positioning plates (3), and the driving assembly (6) comprises a rack (61) and a gear (62). Two racks (61) are arranged and correspond to the positioning plates (3) one by one. The racks (61) are fixedly connected to the positioning plates (3) and arranged along the sliding direction of the positioning plates (3). The gear (62) is located between the two racks (61) and meshes with the two racks (61). The gear (62) is rotationally connected to the positioning frame (2).

2. The microphone welding positioning tool according to claim 1, characterized in that: The gear (62) is coaxially fixedly connected with a worm wheel (63), the worm wheel (63) is meshed with a worm (64), the worm (64) is rotationally connected to the positioning frame (2), and the transmission between the worm (64) and the worm wheel (63) has a self-locking function.

3. The microphone welding positioning tool according to claim 2, characterized in that: One end of the worm (64) in the axial direction is coaxially fixedly connected with a hand wheel (65).

4. The microphone welding positioning tool according to claim 1, characterized in that: The positioning frame (2) is provided with a wire positioning assembly (7), the wire positioning assembly (7) comprising a positioning block (71), a plurality of positioning blocks (71) are provided, and one-to-one correspond to the microphone positioning areas, the positioning blocks (71) are slidably arranged on a side of the positioning frame (2) away from the bottom plate (1), and two positioning grooves (711) for placing wires are provided on the positioning blocks (71).

5. The microphone welding positioning tool according to claim 4, characterized in that: The positioning block (71) is fixedly connected to a support frame (72), the support frame (72) is slidably connected to the positioning frame (2), a clamping plate (73) is slidably provided on the support frame (72) in a direction approaching or moving away from the positioning block (71), a clamping bolt (74) is threadedly penetrated on the clamping plate (73), and the end of the clamping bolt (74) is rotatably connected to the positioning block (71).

6. The microphone welding positioning tool according to claim 5, characterized in that: A fixing assembly (8) is arranged between the base plate (1) and the positioning frame (2), and the fixing assembly (8) comprises a fixing bolt (81) and a flexible fixing plate (82). At least two fixing bolts (81) are arranged, and all the fixing bolts (81) are arranged along the circumference of the positioning frame (2). The fixing bolts (81) are threadedly inserted into a support plate (22) fixedly connected to the positioning frame (2). The ends of the fixing bolts (81) are rotatably connected to the base plate (1). The flexible fixing plate (82) is fixedly arranged on a side of the base plate (1) close to the positioning frame (2), and the flexible fixing plate (82) is directly opposite to all microphone positioning areas.

7. The microphone welding positioning tool according to claim 6, characterized in that: At least two guide rods (11) are fixedly connected to the bottom plate (1), and at least two guide holes (23) are opened on the positioning frame (2). The guide holes (23) correspond to the guide rods (11) one by one, and the guide rods (11) are slidably inserted into the guide holes (23).

8. The microphone welding positioning tool according to claim 6, characterized in that: The support frame (72) is fixedly connected with a slider (721), and all the sliders (721) on each side of the positioning plate (3) are slidably arranged in a dovetail groove (24) provided on the positioning frame (2), and the fixing assembly (8) further comprises a fixing rubber box (83) and an elastic rubber box (84); Two fixed rubber boxes (83) are provided and correspond one to one with the dovetail groove (24). The fixed rubber boxes (83) are embedded in the groove bottom of the dovetail groove (24). Two elastic rubber boxes (84) are provided and correspond one to one with the fixed rubber boxes (83). The elastic rubber boxes (84) are fixed on the bottom plate (1) and are arranged opposite to the side wall of the positioning frame (2). A connecting pipe (85) is connected between the elastic rubber box (84) and the fixed rubber box (83), and a fluid medium flows through the connecting pipe (85).

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