Pneumatic clamping and positioning auxiliary circuit board jig
By designing a pneumatic clamping and positioning auxiliary circuit board fixture with adjustable clamping and connecting components, the problem that existing fixtures cannot adapt to circuit boards of different sizes is solved, achieving efficient and low-cost clamping and positioning, improving production efficiency and protecting circuit boards.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN NANBOWAN HI-TECH CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-05-05
AI Technical Summary
Existing pneumatic clamping and positioning auxiliary circuit board fixtures cannot adapt to circuit boards of different sizes, resulting in increased production costs and reduced efficiency.
A clamping system comprising a first fixture and a second fixture is designed. Through adjustable clamping components and connecting components, stable clamping and positioning of circuit boards of different sizes is achieved. A cylinder drives the clamping plate to adapt to different sizes, and soft pads are used to prevent damage from hard contact.
It enables flexible adaptation to circuit boards of different sizes, reduces production costs and improves production efficiency, while avoiding damage caused by hard contact.
Smart Images
Figure CN224205330U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixture technology, specifically to a pneumatic clamping and positioning auxiliary circuit board fixture. Background Technology
[0002] In the field of circuit board manufacturing, as electronic products become smaller and more precise, higher demands are placed on the processing accuracy and production efficiency of circuit boards. During processes such as soldering, surface mount technology (SMT), and testing, circuit boards require the use of fixtures for stable clamping and precise positioning to ensure processing quality.
[0003] Most pneumatic clamping and positioning auxiliary circuit board fixtures currently on the market use clamping plates of fixed sizes. This design makes the fixture only suitable for circuit boards within a specific size range. Once the circuit board size exceeds the preset specifications, it cannot be effectively clamped. To adapt to circuit boards of different sizes, companies often need to purchase fixtures of various specifications, which not only increases production costs but also reduces production efficiency, making it difficult to meet the current needs of the electronics manufacturing industry for efficient and flexible production. Therefore, those skilled in the art provide a pneumatic clamping and positioning auxiliary circuit board fixture to solve the problems mentioned in the background art. Summary of the Invention
[0004] The purpose of this utility model is to provide a pneumatic clamping and positioning auxiliary circuit board fixture to solve the problems in the prior art.
[0005] This utility model provides the following technical solution: a pneumatic clamping and positioning auxiliary circuit board fixture, including a first fixture, a second fixture placed on one side of the first fixture, four sets of positioning grooves evenly spaced on the top surfaces of the first and second fixtures, placement grooves in the middle of the four sets of positioning grooves on the surfaces of the first and second fixtures, several sets of through holes evenly spaced on the surfaces of the two sets of placement grooves, two sets of clamping components symmetrically arranged on the outer walls of the front and rear ends of the first fixture, and a connecting component between the first and second fixtures, the first fixture being connected to the second fixture through the connecting component.
[0006] As a preferred embodiment of the above technical solution, the clamping assembly includes two sets of fixed seats symmetrically fixedly connected to the front and rear end surfaces of the first fixture. A cylinder is fixedly connected to the top surface of each of the two sets of fixed seats. A first clamping plate is fixedly connected to the opposite side surface of each of the two sets of cylinders. Sliding grooves are formed on the outer walls of both sides of each of the two sets of first clamping plates. A second clamping plate is slidably connected within each of the two sets of sliding grooves. Both sets of second clamping plates have a crab claw-like design. A fixed frame is fixedly connected to the top surface of each of the two sets of first clamping plates. Two sets of guide rods are fixedly connected to the inner walls of each of the two sets of fixed frames. A sliding plate is slidably connected to each of the two sets of guide rods. A pull rod is fixedly connected to the end surface of each of the two sets of sliding plates facing away from the first clamping plate, and both pull rods are slidably connected to the two sets of fixed frames. A first spring is sleeved on the surface of the guide rods above each of the two sets of sliding plates. Multiple slots are formed on the side surface of each of the two sets of second clamping plates facing the sliding plate. Insert rods are fixedly connected to the side surface of each of the two sets of sliding plates facing the slots, and the insert rods are slidably connected to the first clamping plate.
[0007] As a preferred embodiment of the above technical solution, soft pads are adhered to the outer walls of both sets of first and second clamping plates facing the through holes, and the soft pads are anti-slip soft pads.
[0008] As a preferred embodiment of the above technical solution, the slots are provided in four sets, all four sets of slots are equally spaced, the insertion rod is cylindrical, and the four sets of slots are shaped to fit the insertion rod.
[0009] As a preferred embodiment of the above technical solution, the connecting assembly includes two sets of sockets symmetrically fixedly connected to the outer walls on both sides of the first fixture. A plug is fixedly connected to the surface of the second fixture facing the first fixture. The plug is slidably connected to the socket. A spring groove is formed on the front end surface of the plug. A second spring is fixedly connected to the inner wall of the spring groove. A positioning post is fixedly connected to the other end of the second spring, and the positioning post is slidably connected to the spring groove. A limit groove is formed on the inner wall of the socket corresponding to the outer end surface of the positioning post.
[0010] As a preferred embodiment of the above technical solution, the end of the positioning post facing away from the spring groove has a spherical design, and anti-slip texture is provided on the spherical surface.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This invention uses two sets of second clamping plates that slide within two sets of grooves. The restoring force of the first spring pushes the slide plate back onto the guide rod, causing it to synchronously drive the insertion rod to insert into multiple slots. This allows for adjustment of the distance between the two sets of second clamping plates. A cylinder then pushes the first and second clamping plates to clamp and position the circuit board, enabling the second and first clamping plates to accommodate circuit boards of different sizes. This reduces production costs and improves production efficiency.
[0013] This utility model uses a plug inserted into a socket to align the limiting groove with the positioning post. Then, the restoring force of the second spring pushes the positioning post to slide back in the spring groove and pass through the limiting groove, thereby achieving the purpose of connecting the first fixture and the second fixture. This allows the first fixture and the second fixture to be used in series, and also makes it convenient for workers to carry the first fixture and the second fixture at the same time. Attached Figure Description
[0014] Figure 1 A three-dimensional structural schematic diagram of a pneumatic clamping and positioning auxiliary circuit board fixture;
[0015] Figure 2 A bottom view of the structure of a pneumatic clamping and positioning auxiliary circuit board fixture;
[0016] Figure 3 A schematic diagram showing the disassembled structure of the connecting component parts of a pneumatic clamping and positioning auxiliary circuit board fixture;
[0017] Figure 4 This is a schematic diagram of the clamping component of a pneumatic clamping and positioning auxiliary circuit board fixture.
[0018] In the diagram: 1. First fixture; 2. Second fixture; 3. Positioning groove; 4. Placement groove; 5. Through hole; 6. Clamping assembly; 61. Fixing base; 62. Cylinder; 63. First clamping plate; 64. Slide groove; 65. Second clamping plate; 66. Fixing frame; 67. Guide rod; 68. Slide plate; 69. Pull rod; 610. First spring; 611. Slot; 612. Insert rod; 7. Connecting assembly; 71. Socket; 72. Insert block; 73. Spring groove; 74. Second spring; 75. Positioning post; 76. Limiting groove. Detailed Implementation
[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0020] Please see Figures 1-4As shown, this utility model provides a technical solution: a pneumatic clamping and positioning auxiliary circuit board fixture, including a first fixture 1, a second fixture 2 placed on one side of the first fixture 1, four sets of positioning grooves 3 evenly spaced on the top surfaces of the first fixture 1 and the second fixture 2, placement grooves 4 in the middle of the four sets of positioning grooves 3 on the surfaces of the first fixture 1 and the second fixture 2, and several sets of through holes 5 evenly spaced on the surfaces of the two sets of placement grooves 4, two sets of clamping components 6 symmetrically arranged on the outer walls of the front and rear ends of the first fixture 1, and a connecting component 7 between the first fixture 1 and the second fixture 2, the first fixture 1 being connected to the second fixture 2 through the connecting component 7.
[0021] As one implementation method in this embodiment, please refer to Figures 1-4 As shown, the clamping assembly 6 includes two sets of fixing seats 61 symmetrically fixedly connected to the front and rear end surfaces of the first fixture 1. A cylinder 62 is fixedly connected to the top surface of each of the two sets of fixing seats 61. A first clamping plate 63 is fixedly connected to one of the opposite sides of each of the two sets of cylinders 62. Sliding grooves 64 are formed on the outer walls of both sides of each of the two sets of first clamping plates 63. A second clamping plate 65 is slidably connected within each of the two sets of sliding grooves 64. Both sets of second clamping plates 65 are designed in a crab claw shape. A fixing frame 66 is fixedly connected to the top surface of each of the two sets of first clamping plates 63. Two clamping plates 65 are fixedly connected to the inner walls of each of the two sets of fixing frames 66. Two sets of guide rods 67 are slidably connected to each other, and two sets of slide plates 68 are fixedly connected to the surface of each slide plate 68 away from the first clamping plate 63. Both sets of pull rods 69 are slidably connected to two sets of fixed frames 66. A first spring 610 is sleeved on the surface of the guide rods 67 above the two sets of slide plates 68. Multiple sets of slots 611 are opened on the surface of each of the two sets of second clamping plates 65 facing the slide plate 68. Insert rods 612 are fixedly connected to the surface of each of the two sets of slide plates 68 facing the slots 611, and the insert rods 612 are slidably connected to the first clamping plate 63.
[0022] Specifically, the two sets of second clamping plates 65 slide within the two sets of sliding grooves 64, and the restoring force of the first spring 610 pushes the slide plate 68 to reset and slide on the guide rod 67. The slide plate 68 synchronously drives the insertion rod 612 to be inserted into multiple sets of slots 611 in sequence, thereby achieving the purpose of adjusting the distance between the two sets of second clamping plates 65. Then, the cylinder 62 pushes the first clamping plate 63 and the second clamping plate 65 to clamp and position the circuit board, so that the second clamping plate 65 and the first clamping plate 63 can be adapted to circuit boards of different sizes, thereby reducing production costs and improving production efficiency.
[0023] As one implementation method in this embodiment, please refer to Figures 1-4 As shown, both sets of first clamping plates 63 and second clamping plates 65 have soft pads adhered to the outer walls of the side facing the through hole 5, and the soft pads are anti-slip soft pads.
[0024] Specifically, this implementation can prevent the first clamping plate 63 and the second clamping plate 65 from making hard contact with the circuit board when the cylinder 62 pushes the first clamping plate 63 and the second clamping plate 65 to clamp the circuit board, thus preventing the first clamping plate 63 and the second clamping plate 65 from causing damage to the surface of the circuit board under the action of the cylinder 62.
[0025] As one implementation method in this embodiment, please refer to Figures 1-4 As shown, there are four sets of slots 611, all of which are equally spaced. The insertion rod 612 is cylindrical, and the four sets of slots 611 are shaped to match the insertion rod 612.
[0026] Specifically, the insertion rod 612 can be fully engaged with the slot 611, and the insertion rod 612 can be inserted into the four sets of slots 611 in sequence under the action of the first spring 610 and the sliding plate 68, thereby achieving the purpose of adjusting the distance between the two sets of second clamping plates 65, so that the second clamping plate 65 can be used for different circuit board positioning.
[0027] As one implementation method in this embodiment, please refer to Figures 1-3 As shown, the connecting assembly 7 includes two sets of sockets 71 symmetrically fixedly connected to the outer walls on both sides of the first fixture 1. A plug block 72 is fixedly connected to the surface of the second fixture 2 facing the first fixture 1. The plug block 72 is slidably connected to the socket 71. A spring groove 73 is provided on the front surface of the plug block 72. A second spring 74 is fixedly connected to the inner wall of the spring groove 73. A positioning post 75 is fixedly connected to the other end of the second spring 74. The positioning post 75 is slidably connected to the spring groove 73. A limit groove 76 is provided on the inner wall of the socket 71 corresponding to the outer surface of the positioning post 75.
[0028] Specifically, the insert 72 is inserted into the socket 71, aligning the limiting groove 76 with the positioning post 75. Then, the restoring force of the second spring 74 pushes the positioning post 75 to slide back in the spring groove 73, allowing the positioning post 75 to pass through the limiting groove 76. This achieves the purpose of connecting the first fixture 1 and the second fixture 2, enabling them to be used in series. It also facilitates the simultaneous carrying of the first fixture 1 and the second fixture 2 by the operator. When the second fixture 2 needs to be disassembled, the positioning post 75 is slid into the spring groove 73, and the insert 72 is slid out of the socket 71.
[0029] As one implementation method in this embodiment, please refer to Figures 1-3 As shown, the end of the positioning post 75 facing away from the spring groove 73 has a spherical design, and anti-slip texture is provided on the spherical surface.
[0030] Specifically, by pressing the positioning post 75 into the spring groove 73, the outer end of the positioning post 75 is made to fit against the inner wall of the limiting groove 76. Then, by pulling the plug block 72 away from the socket 71, the plug block 72 causes the outer wall of the positioning post 75 to be pressed against the inner wall of the limiting groove 76, and the positioning post 75 slides into the spring groove 73, thereby achieving the purpose of quickly releasing the limiting of the first fixture 1 and the second fixture 2.
[0031] Working principle: First, place the circuit board in the placement slot 4. Then, according to the size of the circuit board, pull the lever 69 in the direction away from the first clamping plate 63, so that the lever 69 drives the slide plate 68 to slide on the guide rod 67, and the slide plate 68 compresses the first spring 610. At this time, the insertion rod 612 slides out of the slot 611 under the action of the slide plate 68. Next, according to the width of the circuit board, slide the two sets of second clamping plates 65 in the two sets of sliding grooves 64, and adjust the distance between the two sets of second clamping plates 65 to the required width. At this time, the slot 611 on the second clamping plate 65 is aligned with the insertion rod 612. Then, by releasing the lever 69, the restoring force of the first spring 610 pushes the slide plate 68 to return to its original position on the guide rod 67, and the slide plate 68 synchronously drives the insertion rod 612 to insert into the slot 611. Then, the cylinder 62 pushes the first clamping plate 63 and the second clamping plate 65, so that the two sets of first clamping plates 63 and second clamping plates 65 quickly clamp and position the circuit board.
[0032] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. A pneumatic clamping and positioning auxiliary circuit board fixture, comprising a first fixture (1), characterized in that: A second fixture (2) is placed on one side of the first fixture (1). Four sets of positioning grooves (3) are equally spaced on the top surfaces of the first fixture (1) and the second fixture (2). Placement grooves (4) are opened on the surfaces of the first fixture (1) and the second fixture (2) in the middle of the four sets of positioning grooves (3). Several sets of through holes (5) are equally spaced on the surfaces of the two sets of placement grooves (4). Two sets of clamping components (6) are symmetrically arranged on the outer walls of the front and rear ends of the first fixture (1). A connecting component (7) is provided between the first fixture (1) and the second fixture (2). The first fixture (1) is connected to the second fixture (2) through the connecting component (7).
2. The pneumatic clamping and positioning auxiliary circuit board fixture according to claim 1, characterized in that: The clamping assembly (6) includes two sets of fixing seats (61) symmetrically fixedly connected to the front and rear end surfaces of the first fixture (1). A cylinder (62) is fixedly connected to the top surface of each of the two sets of fixing seats (61). A first clamping plate (63) is fixedly connected to the opposite side surface of each of the two sets of cylinders (62). Slide grooves (64) are provided on the outer walls of both sides of each of the two sets of first clamping plates (63). A second clamping plate (65) is slidably connected in each of the two sets of slide grooves (64). Both sets of second clamping plates (65) are designed like crab claws. A fixing frame (66) is fixedly connected to the top surface of each of the two sets of first clamping plates (63). Two sets of guides are fixedly connected to the inner wall of each of the two sets of fixing frames (66). The guide rods (67) are slidably connected to the two sets of guide rods (67). The surfaces of the two sets of slides (68) facing away from the first clamping plate (63) are fixedly connected to the pull rods (69). The two sets of pull rods (69) are slidably connected to the two sets of fixed frames (66). The surfaces of the guide rods (67) above the two sets of slides (68) are fitted with the first springs (610). The surfaces of the two sets of second clamping plates (65) facing the slides (68) are provided with multiple sets of slots (611). The surfaces of the two sets of slides (68) facing the slots (611) are fixedly connected to the insert rods (612). The insert rods (612) are slidably connected to the first clamping plate (63).
3. The pneumatic clamping and positioning auxiliary circuit board fixture according to claim 2, characterized in that: Both sets of the first clamping plate (63) and the second clamping plate (65) have soft pads bonded to the outer wall of the side facing the through hole (5), and the soft pads are anti-slip soft pads.
4. The pneumatic clamping and positioning auxiliary circuit board fixture according to claim 2, characterized in that: The slots (611) are provided in four sets, and the four sets of slots (611) are all equally spaced. The plug rod (612) is cylindrical, and the four sets of slots (611) are shaped to match the plug rod (612).
5. The pneumatic clamping and positioning auxiliary circuit board fixture according to claim 1, characterized in that: The connecting assembly (7) includes two sets of sockets (71) symmetrically fixedly connected to the outer walls on both sides of the first fixture (1). A plug (72) is fixedly connected to the surface of the second fixture (2) facing the first fixture (1). The plug (72) is slidably connected to the socket (71). A spring groove (73) is provided on the front surface of the plug (72). A second spring (74) is fixedly connected to the inner wall of the spring groove (73). A positioning post (75) is fixedly connected to the other end of the second spring (74). The positioning post (75) is slidably connected to the spring groove (73). A limit groove (76) is provided on the inner wall of the socket (71) corresponding to the outer surface of the positioning post (75).
6. The pneumatic clamping and positioning auxiliary circuit board fixture according to claim 5, characterized in that: The positioning post (75) has a spherical surface on the end facing away from the spring groove (73), and anti-slip texture is provided on the spherical surface.