Up-down two-way press-fit guiding fine positioning mechanism

Abstract

The utility model provides an up-and-down bidirectional press-fit guide fine positioning mechanism, which comprises a support and a carrier for placing a product, a positioning plate for positioning and mounting the product is arranged on the support, a first power device for driving the carrier to move towards the positioning plate is mounted on the support, a mounting groove is arranged on the positioning plate, and a second power device for driving the carrier to move towards the mounting groove is arranged on the mounting groove. The mounting groove is a through groove, a first guide slope is arranged on the side, close to the carrier, of the mounting groove, and a second guide slope is arranged on the other side of the mounting groove. The PCBA board is guided and positioned while the shell is precisely positioned through the positioning plate, the function of positioning an upper material and a lower material at the same time is achieved, the upper material and the lower material are positioned through the positioning plate, the positioning precision is 0.03 mm, and the positioning precision is high; the problem that the positioning precision is low when two materials are assembled can be solved, the synchronous positioning function of the two materials is achieved through the structure, and the structure is superior to a common manual independent positioning structure for a single material in the prior art.

Description

Technical Field

[0001] The utility model relates to the field of electronic product assembly, in particular to an upper and lower bidirectional pressing guide precision positioning mechanism. Background Art

[0002] The assembly of the housing and PCBA board in the vehicle microphone module of the electronic product is to assemble the PCBA board in the housing, which requires assembly accuracy. The existing technical solution is manual assembly. The existing technology is manual assembly, which has low efficiency and human assembly defects. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the above-mentioned traditional technology and provide a vertical bidirectional pressing guide precision positioning mechanism.

[0004] The purpose of the utility model is achieved through the following technical measures: an up and down bidirectional pressing guide precision positioning mechanism, characterized in that: it includes a bracket and a carrier for placing products, the bracket is provided with a positioning plate for product positioning and installation, the bracket is provided with a first power device for driving the carrier to move toward the positioning plate, the positioning plate is provided with a mounting groove, the mounting groove is a through groove, the mounting groove is provided with a first guide slope on the side close to the carrier, and the other side of the mounting groove is provided with a second guide slope.

[0005] As a preferred solution, the positioning plate and the bracket are slidably connected, and a spring is provided between the positioning plate and the bracket.

[0006] As a preferred solution, a guide column is provided on the bracket, one end of the guide column is fixedly connected to the bracket, and the other end passes through the positioning plate and is fixedly connected to the limiting pad and the limiting bolt, and the spring is sleeved on the guide column between the limiting pad and the positioning plate.

[0007] As a preferred solution, the first guide slope and the second guide slope are both arranged on a guide block, a plurality of guide blocks are provided, and the guide blocks are distributed in the circumference of the installation groove.

[0008] As a preferred solution, the first guide slope and the second guide slope are respectively located at two ends of the guide block, and the first guide slope and the second guide slope are both inclined gradually toward the inside of the installation groove from one end away from the installation groove to the other end.

[0009] As a preferred solution, one end of the guide block close to the carrier protrudes from the lower surface of the positioning plate, and one end of the guide block away from the carrier is arranged flush with the upper surface of the positioning plate.

[0010] As a preferred solution, a blocking block for positioning the vehicle is also provided on the bracket, and the blocking block is connected to a second power device for driving the vehicle to move closer to or away from the vehicle.

[0011] As a preferred solution, the carrier includes a base plate and a positioning insert, the base plate and the positioning insert are fixedly connected, the base plate and the positioning insert are both plate-shaped, the base plate is located on the side close to the second cylinder, and the positioning insert is located on the side close to the positioning plate.

[0012] As a preferred solution, a limiting groove cooperating with the blocking block is provided on the bottom plate, and the limiting groove is located on the side of the bottom plate.

[0013] As a preferred solution, a pressure plate is also provided on the bracket, and there are two groups of pressure plates, which are arranged along the movement direction of the carrier. Both ends of the two groups of pressure plates are provided with guide angles to facilitate the entry of the carrier. The positioning insert is located between the two pressure plates, and the bottom plate is located on the lower side of the pressure plate.

[0014] Due to the adoption of the above technical scheme, compared with the prior art, the advantages of the utility model are: the positioning plate is used to achieve precise positioning of the shell and guide positioning of the PCBA board at the same time, realizing the simultaneous positioning function of the upper and lower materials, the positioning plate positions the upper and lower materials, and the positioning accuracy is 0.03mm, and the positioning accuracy is high; it can solve the problem of low positioning accuracy when assembling the two materials, and the structure realizes the synchronous positioning function of the two materials, which is superior to the common structure of manual positioning of a single material in the prior art.

[0015] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 The utility model is a schematic diagram of the overall structure of a vertical bidirectional pressing guide precision positioning mechanism.

[0017] Attached Figure 2 The utility model is a partial structural schematic diagram of an upper and lower bidirectional pressing guide precision positioning mechanism.

[0018] Attached Figure 3 The utility model is a schematic diagram of the lower surface structure of a positioning plate of an upper and lower bidirectional pressing guide precision positioning mechanism.

[0019] Attached Figure 4 The utility model is a schematic diagram of the upper surface structure of a positioning plate of a vertical bidirectional pressing guide precision positioning mechanism.

[0020] Attached Figure 5 The utility model is a schematic diagram of the partially enlarged structure of position A of an up-and-down bidirectional pressing guide precision positioning mechanism.

[0021] Attached Figure 6 It is a partial enlarged structural schematic diagram of position B of an up and down bidirectional pressing guide precision positioning mechanism of the utility model.

[0022] Among them: 1- bracket; 2- carrier; 3- positioning plate; 4- mounting groove; 5- first guide slope; 6- second guide slope; 7- product groove; 8- first cylinder; 9- support plate; 10- guide column; 11- limiting pad; 12- limiting bolt; 13- spring; 14- guide block; 15- blocking block; 16- second cylinder; 17- partition; 18- bottom plate; 19- positioning insert; 20- limiting groove; 21- pressure plate; 22- baffle. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example: As attached Figure 1-5 As shown, a vertical bidirectional pressing guide precision positioning mechanism includes a bracket 1 and a carrier 2 for placing products. The bracket 1 is provided with a positioning plate 3 for positioning and installing products. The positioning plate 3 is provided with a mounting groove 4. The mounting groove 4 is a through groove. The side of the mounting groove 4 close to the carrier 2 is provided with a first guide slope 5 that matches the product, and the other side of the mounting groove 4 is provided with a second guide slope 6. In this embodiment, the PCBA board is assembled into the shell, so the shell is placed on the carrier 2, and a product slot 7 for placing the shell is provided on the carrier 2. The side of the shell for assembling with the PCBA board is arranged to face outward, that is, upward, to facilitate subsequent assembly.

[0025] like Figure 1 As shown, the bracket 1 is also provided with a first power device for driving the carrier 2 to move toward the positioning plate 3. In this embodiment, the first power device is a first cylinder 8, which is mounted on the bracket 1. The output end of the first cylinder 8 is connected to a support plate 9, which is used to lift the carrier 2 and move it toward the positioning plate 3. The contact area between the support plate 9 and the carrier 2 is large, which is beneficial to the stability of the movement of the carrier 2. In this embodiment, the positioning plate 3 is arranged above the bracket 1, the carrier 2 is located between the support plate 9 and the positioning plate 3, and the first cylinder 8 is located below the support plate 9. In this way, when installing and positioning, the first cylinder 8 drives the support plate 9 to push the carrier 2 toward the positioning plate 3. After the installation is completed, the first cylinder 8 drives the support plate 9 to return to its original position, and the carrier 2 also moves downward and returns to its original position under the action of gravity. There is no need for a fixed connection between the carrier 2 and the support plate 9 to achieve product positioning and installation, which is convenient for taking and placing the carrier 2.

[0026] like Figure 1 and Figure 5 As shown, the positioning plate 3 and the bracket 1 are slidably connected, and a guide column 10 is provided on the bracket 1. The guide column 10 is provided in multiple groups. In this embodiment, four groups are provided. One end of the guide column 10 is fixedly connected to the bracket 1, and the other end passes through the positioning plate 3 and is fixedly connected to a limiting pad 11 and a limiting bolt 12. A spring 13 is mounted on the guide column 10 between the limiting pad 11 and the positioning plate 3.

[0027] like Figure 3-4 As shown, the first guide slope 5 and the second guide slope 6 are both arranged on the guide block 14. A plurality of guide blocks 14 are arranged, and the guide blocks 14 are distributed in the circumference of the mounting groove 4. In the present embodiment, six guide blocks 14 are arranged, one is arranged on each short axis of the mounting groove 4, and two are arranged on each long axis. The end of the guide block 14 close to the carrier 2 protrudes from the lower surface of the positioning plate 3, and the end of the guide block 14 away from the carrier 2 is arranged flush with the upper surface of the positioning plate 3. In the present embodiment, the lower surface is the surface close to the carrier 2, and the upper surface is the surface away from the carrier 2. The first guide slope 5 and the second guide slope 6 are respectively located at the two ends of the guide block 14, and the first guide slope 5 and the second guide slope 6 are gradually inclined toward the inside of the mounting groove 4 from one end away from the mounting groove 4 to the other end. The first guide slope 5 is used to guide the shell. The shell is in a free state in the product slot 7 of the carrier 2. The carrier 2 limits the shell material to 0.3mm on one side. When the carrier 2 is pushed up with the shell, the edge of the carrier 2 contacts the guide block 14 on the lower side of the positioning plate 3. The first guide slope 5 guides. When the shell lifts the positioning plate 3, the spring 13 applies downward pressure to the positioning plate 3 to ensure that the shell is in full contact with the first guide angle around it, thereby ensuring the guiding positioning accuracy, and the positioning accuracy is 0.03mm. The second guide slope 6 is used to guide the PCBA board. After the bottom shell is positioned by the positioning plate 3, the next step is to assemble the PCBA board. The material placement mechanism places the PCBA board on the top of the shell for assembly. During the lowering of the PCBA board, the edge of the PCBA board contacts the second guide slope 6 on the positioning plate 3. At this time, the positioning plate 3 guides the PCBA board for assembly to ensure that the two materials are assembled in place.

[0028] The positioning plate 3 realizes the precise positioning of the shell and guides the positioning of the PCBA board, realizing the simultaneous positioning function of the upper and lower materials. The positioning plate 3 positions the upper and lower materials with a positioning accuracy of 0.03mm and high positioning accuracy. The problem of low positioning accuracy when assembling the two materials can be solved. This structure realizes the synchronous positioning function of the two materials, which is superior to the common structure of manually positioning a single material in the prior art.

[0029] like Figure 1 and Figure 2As shown, the bracket 1 is also provided with a blocking block 15 for positioning the carrier 2. The blocking block 15 is connected to a second power device for driving the carrier 2 to move closer to or away from the carrier 2. The second power device is a second cylinder 16. The second cylinder 16 is arranged side by side with the first cylinder 8. In this embodiment, the movement of the blocking block 15 is also in the vertical direction. It can also be arranged in other directions as long as the positioning of the carrier 2 can be achieved. When the carrier 2 moves toward the bracket 1, the second cylinder 16 drives the blocking block 15 to move toward the carrier 2 to reach the position of blocking the carrier 2, and the carrier 2 is positioned. After that, the first cylinder 8 drives the carrier 2 to position and install the product. After the installation is completed and returned to the position, the second cylinder 16 drives the blocking block 15 away from the carrier 2, and the carrier 2 leaves. A partition 17 is provided on the bracket 1, and the first cylinder 8 and the second cylinder 16 are both installed on the partition 17, wherein a first guide seat and a first guide shaft are provided on both sides of the first cylinder 8 for guiding the support plate 9 during movement, and two blocking blocks 15 are provided, and the two blocking blocks 15 are both installed on the baffle 22, and the baffle 22 is fixedly connected to the output end of the second cylinder 16, and a second guide seat and a second guide shaft are provided on both sides of the second cylinder 16 for guiding the baffle during movement.

[0030] like Figure 1-2 As shown, the carrier 2 includes a bottom plate 18 and a positioning insert 19, which are fixedly connected. The bottom plate 18 and the positioning insert 19 are both plate-shaped. The bottom plate 18 is located on the side close to the second cylinder 16, and the positioning insert 19 is located on the side close to the positioning plate 3. The bottom plate 18 is provided with a limiting groove 20 that cooperates with the blocking block 15. The limiting groove 20 is located on the side of the bottom plate 18. In this embodiment, there are two blocking blocks 15, and correspondingly, there are also two limiting grooves 20. When limiting, as the carrier 2 moves toward the blocking block 15 until the blocking block 15 is located in the limiting groove 20, the limiting effect on the carrier 2 can be ensured to prevent the carrier 2 from being displaced in the horizontal direction.

[0031] like Figure 1 As shown, a pressure plate 21 is also provided on the bracket 1. There are two groups of pressure plates 21, which are arranged along the movement direction of the carrier 2. Both ends of the two pressure plates 21 are provided with guide angles to facilitate the entry of the carrier 2. The positioning insert 19 on the carrier 2 is located between the two pressure plates 21, and the bottom plate 18 is located on the lower side of the pressure plate 21. The pressure plate 21 can guide and position the carrier 2 transferred from the upper station, and then block and precisely position it through the blocking block 15.

Claims

1. A vertical bidirectional pressing guide precision positioning mechanism, characterized in that: It includes a bracket and a carrier for placing products, the bracket is provided with a positioning plate for positioning and installing the product, the bracket is provided with a first power device for driving the carrier to move toward the positioning plate, the positioning plate is provided with a mounting groove, the mounting groove is a through groove, a first guide slope is provided on one side of the mounting groove close to the carrier, and a second guide slope is provided on the other side of the mounting groove.

2. The up and down bidirectional pressing guide precision positioning mechanism according to claim 1, characterized in that: The positioning plate and the bracket are slidably connected, and a spring is arranged between the positioning plate and the bracket.

3. The up and down bidirectional pressing guide precision positioning mechanism according to claim 2, characterized in that: The bracket is provided with a guide column, one end of which is fixedly connected to the bracket, and the other end of which passes through the positioning plate and is fixedly connected to a limiting pad and a limiting bolt, and the spring is sleeved on the guide column between the limiting pad and the positioning plate.

4. The up and down bidirectional pressing guide precision positioning mechanism according to claim 1, characterized in that: The first guide slope and the second guide slope are both arranged on a guide block, a plurality of guide blocks are arranged, and the guide blocks are distributed in the circumference of the installation groove.

5. The up and down bidirectional pressing guide precision positioning mechanism according to claim 4, characterized in that: The first guide slope and the second guide slope are respectively located at two ends of the guide block, and the first guide slope and the second guide slope are both inclined gradually toward the inside of the installation groove from one end away from the installation groove to the other end.

6. The up and down bidirectional pressing guide precision positioning mechanism according to claim 4, characterized in that: One end of the guide block close to the carrier protrudes from the lower surface of the positioning plate, and one end of the guide block away from the carrier is arranged flush with the upper surface of the positioning plate.

7. The up and down bidirectional pressing guide precision positioning mechanism according to any one of claims 1 to 6, characterized in that: The bracket is also provided with a blocking block for positioning the vehicle, and the blocking block is connected to a second power device for driving the vehicle to move closer to or away from the vehicle.

8. The up and down bidirectional pressing guide precision positioning mechanism according to claim 7, characterized in that: The carrier includes a base plate and a positioning insert, the base plate and the positioning insert are fixedly connected, the base plate and the positioning insert are both plate-shaped, the base plate is located on a side close to the second cylinder, and the positioning insert is located on a side close to the positioning plate.

9. The up and down bidirectional pressing guide precision positioning mechanism according to claim 8, characterized in that: The bottom plate is provided with a limiting groove matched with the blocking block, and the limiting groove is located at the side of the bottom plate.

10. The up and down bidirectional pressing guide precision positioning mechanism according to claim 8, characterized in that: The bracket is also provided with a pressure plate, and there are two groups of pressure plates, which are arranged along the movement direction of the carrier. Both ends of the two groups of pressure plates are provided with guide angles to facilitate the entry of the carrier. The positioning insert is located between the two pressure plates, and the bottom plate is located on the lower side of the pressure plate.

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