A vertical baking fixture for flexible circuit boards

Abstract

The present invention discloses a vertical baking jig for flexible circuit boards, including a support frame and a clamping assembly. The space between the first bracket and the second bracket is a temporary storage space for the circuit board. During baking, the adjusting rod is first rotated to rotate the clamping claw outside the temporary storage space; then the circuit board is vertically inserted into the jig slot. At this time, since baking has not yet started, the airflow is weak and the circuit boards will not be stacked temporarily; the adjusting rod is rotated again to rotate the clamping claw into the temporary storage space, and the first clamping member and the second clamping member are respectively located on both sides of the circuit board; finally, the first adjusting rod and the second adjusting rod are moved toward each other so that the first clamping member and the second clamping member are close to each other and clamp the top two sides of the circuit board, thereby overcoming the technical problem that the circuit boards fall toward adjacent circuit boards and are stacked together due to the soft material and the influence of airflow during baking, and realizing vertical baking of the circuit boards.

Description

Technical Field

[0001] The invention relates to the field of circuit board drying devices, and in particular to a vertical baking fixture for flexible circuit boards. Background Art

[0002] In the manufacturing process of circuit boards, there are multiple high-temperature baking processes, such as the need to bake the substrate after solder mask screen printing. Since the material of the substrate is relatively soft, it is generally stacked and laid flat on a kilo-layer rack. After screen printing and exposure and development of one side, the second side is made in the same way. This baking method is inefficient. At the same time, due to gravity and inertia, the stacked circuit boards are prone to relative displacement during the circulation process, causing surface scratches and affecting the product appearance or performance. In addition, if the circuit board is simply placed vertically, due to its soft characteristics, it will be affected by wind during baking, causing the circuit board to fall to the adjacent circuit boards and stack together, eventually causing the product to be scrapped. Therefore, a vertical baking fixture for flexible circuit boards is proposed. Summary of the invention

[0003] The purpose of the present invention is to provide a vertical baking jig for a flexible circuit board to solve the above-mentioned problem.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] A vertical baking fixture for a flexible circuit board, comprising a support frame and a clamping assembly;

[0006] The support frame includes a first bracket and a second bracket, and a plurality of limit plates are arranged on opposite sides of the first bracket and the second bracket, and a card slot is arranged on the limit plate;

[0007] The top surfaces of the first bracket and the second bracket are both provided with a clamping assembly, and the clamping assembly includes:

[0008] Mounting seat;

[0009] A mounting rod is rotatably connected to the mounting seat, a first mounting groove and a second mounting groove are provided on one side of the mounting rod, the first mounting groove and the second mounting groove are parallel to each other, a first through hole penetrating the mounting rod is provided at one end of the first mounting groove, and a second through hole penetrating the mounting rod is provided at one end of the second mounting groove;

[0010] An adjusting rod, comprising a first adjusting rod arranged in the first mounting groove and a second adjusting rod arranged in the second mounting groove, one end of the first adjusting rod extending to the outside of the mounting rod through the first through hole, one end of the second adjusting rod extending to the outside of the mounting rod through the second through hole, and the first adjusting rod and the second adjusting rod can move toward or away from each other;

[0011] The clamping jaw comprises a first clamping member arranged on the first adjusting rod and a second clamping member arranged on the second adjusting rod.

[0012] Optionally, there are two mounting seats, which are respectively arranged at two ends of the top surface of the first bracket or the second bracket. The mounting seats are provided with mounting holes, and two ends of the mounting rod pass through the mounting holes.

[0013] Optionally, a first spring is arranged in the first mounting groove, one end of the first spring is connected to one end of the first mounting groove away from the first through hole, and the other end is connected to the first adjusting rod; a second spring is arranged in the second mounting groove, one end of the second spring is connected to one end of the second mounting groove away from the second through hole, and the other end is connected to the second adjusting rod.

[0014] Optionally, a limiting rod is provided at one end of the mounting rod, one end of the limiting rod is provided between the first through hole and the second through hole, guide grooves are provided on the sides of the limiting rod close to the first through hole and the second through hole, and a limiting hole connected to the guide groove is provided at one end of the limiting rod close to the mounting rod;

[0015] A first groove is provided on a side of the first adjusting rod close to the limiting rod, a third spring is provided on the first groove, a first limiting block is provided on an end of the third spring away from the bottom wall of the first groove, the first limiting block can slide on the guide groove and the limiting hole, and a side of the first limiting block away from the third spring is an inclined surface;

[0016] A second groove is provided on a side of the second adjusting rod close to the limiting rod, a fourth spring is provided on the second groove, a second limiting block is provided on an end of the fourth spring away from the bottom wall of the second groove, the second limiting block can slide on the guide groove and the limiting hole, and a side of the second limiting block away from the fourth spring is an inclined surface;

[0017] An adjustment button is disposed on one end of the first adjustment rod and the second adjustment rod protruding from the mounting rod.

[0018] Optionally, an annular groove is provided on the inner annular surface of the mounting hole, a plurality of limiting grooves are provided on the bottom wall surface of the annular groove at equal intervals, and the side wall surface of the limiting groove is an inclined surface;

[0019] A third groove corresponding to the annular groove is arranged on the side of the mounting rod, a fifth spring is arranged on the third groove, and a third limiting block corresponding to the limiting groove is arranged at one end of the fifth spring away from the bottom wall of the third groove.

[0020] Optionally, the vertical baking jig for the flexible circuit board further comprises an adjustment component, and the adjustment component is used to adjust the distance between the first bracket and the second bracket;

[0021] The adjustment assembly includes a connecting rod arranged on the side of the first bracket close to the second bracket and a sleeve arranged on the side of the second bracket close to the first bracket. The connecting rod can be inserted into the sleeve. A threaded hole is provided on the side wall of the sleeve. Bolts pass through the threaded hole to fix the connecting rod and the sleeve.

[0022] Optionally, U-shaped plates are provided on both the connecting rod and the sleeve.

[0023] Optionally, an elastic limiting member is provided on one side of the slot, and the elastic limiting member is a stainless steel wire rope.

[0024] Compared with the prior art, the present invention has the following beneficial effects: the card slot of the first bracket and the card slot of the second bracket form a fixture slot for inserting the circuit board, and the space between the first bracket and the second bracket is a temporary storage space for the circuit board. During baking, the adjusting rod is first rotated to rotate the clamping claw outside the temporary storage space; then the circuit board is vertically inserted into the fixture slot. At this time, since baking has not started yet, the air flow is weak and the circuit board will not be stacked temporarily; the adjusting rod is rotated again to rotate the clamping claw into the temporary storage space, and the first clamping member and the second clamping member are respectively located on both sides of the circuit board; finally, the first adjusting rod and the second adjusting rod are moved toward each other so that the first clamping member and the second clamping member are close to each other and clamp the top two sides of the circuit board. At this time, the circuit board is fixed in the fixture slot, which overcomes the technical problem that the circuit board is stacked together due to the soft material and the influence of the airflow (hot airflow is generated during baking) when the circuit board is baked, and the vertical baking of the circuit board is realized, so that the two sides of the circuit board can be coated with solder mask, silk screen and exposure and development processes at the same time, which improves the baking efficiency and also avoids product defects caused by displacement of the circuit board during the circulation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0026] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0027] Figure 1 It is a structural schematic diagram of a vertical baking jig for a flexible circuit board of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure after the first bracket and the second bracket of the present invention are separated;

[0029] Figure 3 It is a structural schematic diagram of the regulating assembly of the present invention;

[0030] Figure 4 An exploded view of the adjustment assembly of the present invention;

[0031] Figure 5 It is a structural schematic diagram of the installation rod of the present invention from a first viewing angle;

[0032] Figure 6 for Figure 5 A magnified view of part A;

[0033] Figure 7 It is a structural schematic diagram of the installation rod of the present invention from a second viewing angle;

[0034] Figure 8 for Figure 7 A magnified view of part B;

[0035] Fig. 9 is a schematic structural diagram of a first adjusting rod of the present invention;

[0036] Fig.10 for Fig. 9 Enlarged view of part C;

[0037] Fig.11 is a three-dimensional diagram of the mounting base of the present invention;

[0038] Fig.12 It is a right side view of the mounting base of the present invention;

[0039] Fig.13 for Fig.12 A cross-sectional perspective view of the AA section.

[0040] Illustrations: 10, support frame; 11, first bracket; 12, second bracket; 13, limit plate; 14, slot; 15, elastic limiter; 20, clamping assembly; 21, mounting seat; 211, mounting hole; 212, annular groove; 213, limiter groove; 22, adjustment rod; 221, first adjustment rod; 222, second adjustment rod; 223, first groove; 23, clamping claw; 231, first clamping member; 232, second clamping member; 24, mounting rod; 241, first mounting slot; 242, second mounting slot; 243, first through hole; 244, second through hole; 245, third groove; 251, first spring; 252, second spring; 253, third spring; 255, fifth spring; 26, limit rod; 261, guide slot; 262, limit hole; 271, first limit block; 273, third limit block; 28, adjustment button; 30, adjustment assembly; 31, connecting rod; 32, sleeve; 33, threaded hole; 34, bolt; 35, U-shaped plate. DETAILED DESCRIPTION

[0041] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below 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.

[0042] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0043] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0044] Reference Figures 1 to 13, an embodiment of the present invention provides a vertical baking jig for a flexible circuit board, including a support frame 10 and a clamping assembly 20. The support frame 10 includes a first bracket 11 and a second bracket 12, and a plurality of limit plates 13 are provided on opposite sides of the first bracket 11 and the second bracket 12, the distance between two adjacent limit plates 13 is equal, and the limit plates 13 are vertically arranged. The number of limit plates 13 on the first bracket 11 is the same as the number of limit plates 13 on the second bracket 12, and they correspond to each other. A card slot 14 is provided on the limit plate 13, and the card slot 14 is vertically arranged. The card slot 14 of the first bracket 11 and the card slot 14 of the second bracket 12 form a jig slot for inserting a circuit board, and the plane where the jig slot is located is perpendicular to the horizontal plane. Therefore, when the circuit board is inserted into the jig slot, the side of the circuit board is perpendicular to the horizontal plane. The top surfaces of the first bracket 11 and the second bracket 12 are both provided with a clamping assembly 20, which includes a mounting seat 21, an adjustment rod 22 and a clamping claw 23. This embodiment is described with reference to the structure of the clamping assembly 20 on the top surface of the first bracket 11. The mounting seats 21 are provided at both ends of the top surface of the first bracket 11, that is, there are two mounting seats 21. The adjustment rod 22 includes a first adjustment rod 221 and a second adjustment rod 222, which are both rotatably connected to the mounting seat 21, and the first adjustment rod 221 and the second adjustment rod 222 can move toward or away from each other. The clamping jaw 23 includes a first clamping member 231 and a second clamping member 232. The first clamping member 231 is disposed on the first adjusting rod 221, and the second clamping member 232 is disposed on the second adjusting rod 222. When the first adjusting rod 221 and the second adjusting rod 222 move toward or away from each other, the first clamping member 231 and the second clamping member 232 move closer to each other to clamp the circuit board or move away from each other to release the circuit board. It should be noted that the number of the first clamping members 231 on the first adjusting rod 221 and the number of the second clamping members 232 on the second adjusting rod 222 are the same as the number of the fixture slots, that is, the first clamping member 231 and the second clamping member 232 form the clamping jaw 23 to clamp the circuit board.

[0045] During baking, first rotate the adjusting rod 22 to rotate the clamping claw 23 out of the temporary storage space; then vertically insert the circuit board into the fixture slot. At this time, since baking has not started yet, the airflow is weak and the circuit boards will not be stacked temporarily; rotate the adjusting rod 22 again to rotate the clamping claw 23 into the temporary storage space, and make the first clamping member 231 and the second clamping member 232 respectively located on both sides of the circuit board; finally, make the first adjusting rod 221 and the second adjusting rod 222 move toward each other so that the first clamping member 231 and the second clamping member 232 are close to each other and clamp the top two sides of the circuit board. At this time, the circuit board is fixed in the fixture slot, and the hot air flow generated during baking cannot blow the soft circuit board to the adjacent circuit board, avoiding the circuit boards from being stacked together during baking, thereby realizing vertical baking of the circuit board, so that both sides of the circuit board can be coated with solder mask, silk screen and exposure and development processes at the same time, improving baking efficiency, and also avoiding product defects caused by the circuit board being located during circulation.

[0046] Furthermore, the mounting seat 21 is provided with a mounting hole 211, and the clamping assembly 20 further includes a mounting rod 24 rotatably connected between the two mounting seats 21, and both ends of the mounting rod 24 pass through the mounting holes 211. Optionally, the portion of the mounting rod 24 located between the two mounting seats 21 is square-shaped, and both ends are circular-shaped, and the circular portion passes through the mounting hole 211. The adjustment rod 22 is arranged on the mounting rod 24, and when the mounting rod 24 rotates around the hole axis of the mounting hole 211, the adjustment rod 22 and the clamping jaw 23 are driven to rotate around the hole axis of the mounting hole 211, so that the clamping jaw 23 is rotated into the temporary storage space or rotated out of the temporary storage space.

[0047] Furthermore, a first mounting groove 241 and a second mounting groove 242 are provided on one side of the square section of the mounting rod 24. The first mounting groove 241 and the second mounting groove 242 are parallel to each other, and the length direction of the first mounting groove 241 and the second mounting groove 242 is the same as the axial direction of the mounting rod 24. A first through hole 243 penetrating through one end surface of the mounting rod 24 is provided at one end of the first mounting groove 241, and a second through hole 244 penetrating through one end surface of the mounting rod 24 is provided at one end of the second mounting groove 242. The first through hole 243 and the second through hole 244 are located at the same end of the mounting rod 24.

[0048] The first adjusting rod 221 is arranged on the first mounting groove 241, one end of the first adjusting rod 221 passes through the first through hole 243 and extends to the outside of the mounting rod 24, and the first clamping member 231 is arranged on the side of the first adjusting rod 221 facing the notch of the first mounting groove 241, and extends to the outside of the first mounting groove 241. The second adjusting rod 222 is arranged on the second mounting groove 242, one end of the second adjusting rod 222 passes through the second through hole 244 and extends to the outside of the mounting rod 24, and the second clamping member 232 is arranged on the side of the second adjusting rod 222 facing the notch of the second mounting groove 242, and extends to the outside of the second mounting groove 242. By driving the first adjusting rod 221 and the second adjusting rod 222 to extend to the outside of the mounting rod 24, the first adjusting rod 221 and the second adjusting rod 222 are driven to move toward or away from each other. It should be noted that the clamping end of the first clamping member 231 and the clamping end of the second clamping member 232 are on the same horizontal line.

[0049] Furthermore, a first spring 251 is disposed in the first mounting groove 241, one end of the first spring 251 is connected to the side wall of the first mounting groove 241 away from the first through hole 243, and the other end is connected to the first adjustment rod 221. A second spring 252 is disposed in the second mounting groove 242, one end of the second spring 252 is connected to the side wall of the second mounting groove 242 away from the second through hole 244, and the other end is connected to the second adjustment rod 222. Therefore, in the initial state, the first adjustment rod 221 is subjected to the elastic force of the first spring 251, and the second adjustment rod 222 is subjected to the elastic force of the second spring 252.

[0050] A limiting rod 26 is provided at one end of the mounting rod 24, and one end of the limiting rod 26 is provided between the first through hole 243 and the second through hole 244. A guide groove 261 is provided on the side of the limiting rod 26 close to the first through hole 243 and the second through hole 244, and a limiting hole 262 connected to the guide groove 261 is provided at one end of the limiting rod 26 close to the mounting rod 24. The bottom wall surface of the guide groove 261 is an inclined surface, and is inclined in the direction of the limiting hole 262, that is, the depth of the end of the guide groove 261 close to the limiting hole 262 is greater than the depth of the end away from the limiting hole 262.

[0051] A first groove 223 corresponding to the limiting groove 213 is provided on the side of the first adjusting rod 221 close to the limiting rod 26, and a third spring 253 is provided on the first groove 223. A first limiting block 271 is provided on one end of the third spring 253 away from the bottom wall of the first groove 223, and the first limiting block 271 can slide on the guide groove 261 and the limiting hole 262. A second groove corresponding to the limiting groove 213 is provided on the side of the second adjusting rod 222 close to the limiting rod 26, and a fourth spring is provided on the second groove, and a second limiting block is provided on one end of the fourth spring away from the bottom wall of the second groove, and the second limiting block can slide on the guide groove 261 and the limiting hole 262. When the first limiting block 271 slides in the guide groove 261, the third spring 253 is in a compressed state; when the first limiting block 271 slides into the limiting hole 262, the third spring 253 is in a natural state. Similarly, when the second limiting block slides in the guide groove 261 on the other side of the limiting rod 26, the third spring 253 is in a compressed state; when the first limiting block 271 slides into the limiting hole 262, the third spring 253 is in a natural state.

[0052] When a force pointing to the direction of the first spring 251 is applied to the first adjusting rod 221, the first spring 251 is compressed, and the first limit block 271 slides in the guide groove 261 and slides toward the limit hole 262; when the first limit block 271 slides into the limit hole 262, the limit rod 26 limits the movement of the first adjusting rod 221 through the first limit block 271 and the first spring 251. When a force pointing to the direction of the second spring 252 is applied to the second adjusting rod 222, the second spring 252 is compressed, and the second limit block slides in the guide groove 261 on the other side of the limit rod 26 and slides toward the limit hole 262. When the second limit block slides to one side of the limit hole 262, the second limit block squeezes the first limit block 271 out of the limit hole 262, and the limit rod 26 limits the movement of the second adjusting rod 222 through the second limit block and the second spring 252, and the first adjusting rod 221 is ejected under the elastic force of the first spring 251. That is, when one end of the first adjusting rod 221 is pressed to retract the first adjusting rod 221 into the first through hole 243, the second adjusting rod 222 pops out of the second through hole 244; when one end of the second adjusting rod 222 is pressed to retract the second adjusting rod 222 into the second through hole 244, the first adjusting rod 221 pops out of the first through hole 243, thereby realizing the toward or away movement of the first adjusting rod 221 and the second adjusting rod 222, and then realizing the first clamping member 231 and the second clamping member 232 approaching or moving away from each other to clamp or release the circuit board.

[0053] It should be noted that the side of the first limit block 271 away from the third spring 253 is an inclined surface, and the side of the second limit block away from the fourth spring is an inclined surface. That is, in the process of the first limit block 271 and the second limit block sliding into the limit hole 262 from the guide groove 261, the end of the first limit block 271 (or the second limit block) that first enters the limit hole 262 is thicker than the end that enters the limit hole 262 later. When the first limit block 271 is in the limit hole 262, a force pointing to the direction of the second spring 252 is applied to the second adjustment rod 222, and the second limit block and the side of the first limit block 271 close to the mounting rod 24 are in the same plane, the first limit block 271 and the side of the second limit block away from the mounting rod 24 form an opening, so that the inclined surface of the first limit block 271 is inserted and removed from the guide groove 261. At this time, under the elastic force of the first spring 251, the first limit block 271 is ejected, so that the second limit block squeezes the first limit block 271 out of the limit hole 262. Optionally, the first adjustment rod 221 and the second adjustment rod 222 are both provided with an adjustment button 28 at one end protruding from the mounting rod 24 to facilitate pressing the first adjustment rod 221 and the second adjustment rod 222.

[0054] Furthermore, an annular groove 212 is provided on the inner annular surface of the mounting hole 211, and a plurality of limiting grooves 213 are provided at equal intervals on the bottom wall of the annular groove 212, and the side wall of the limiting groove 213 is an inclined surface. A third groove 245 corresponding to the annular groove 212 is provided on the side of the mounting rod 24, and a fifth spring 255 is provided on the third groove 245, and a third limiting block 273 corresponding to the limiting groove 213 is provided at one end of the fifth spring 255 away from the bottom wall of the third groove 245. When the mounting rod 24 needs to be rotated, one end of the mounting rod 24 is rotated so that the third limiting block 273 slides from the annular groove 212 to the limiting groove 213. When the third limiting block 273 slides into the limiting groove 213, the mounting rod 24 is limited to prevent the mounting plate from rotating during the baking process. Since the side wall surface of the limiting groove 213 is an inclined surface, when the mounting rod 24 needs to be released from the limiting state, a rotational force is applied to the mounting rod 24, and the third limiting block 273 can slide out of the limiting groove 213 to the annular groove 212, thereby releasing the limiting state of the mounting rod 24.

[0055] Furthermore, the vertical baking jig for the flexible circuit board also includes an adjustment component 30, which is used to adjust the distance between the first bracket 11 and the second bracket 12 to meet the needs of circuit boards of different sizes. The adjustment component 30 includes a connecting rod 31 disposed on the side of the first bracket 11 close to the second bracket 12 and a sleeve 32 disposed on the side of the second bracket 12 close to the first bracket 11. There are four connecting rods 31 and four sleeves 32 to provide stability for the baking jig. The connecting rod 31 can be inserted into the sleeve 32, and a threaded hole 33 is provided on the side wall of the sleeve 32. A bolt 34 passes through the threaded hole 33 to fix the connecting rod 31 and the sleeve 32. A U-shaped plate 35 is provided on both the connecting rod 31 and the sleeve 32, and the bottom plate of the U-shaped plate 35 is used to support the circuit board.

[0056] Furthermore, an elastic limiter 15 is provided on one side of the slot 14. The elastic limiter 15 is a stainless steel wire rope to prevent the ends of the circuit boards away from the clamping assembly 20 from approaching and contacting each other during baking, thereby avoiding partial contact and stacking of the circuit boards.

[0057] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vertical baking fixture for a flexible circuit board, characterized in that: It comprises a support frame (10) and a clamping assembly (20); The support frame (10) comprises a first bracket (11) and a second bracket (12); a plurality of limit plates (13) are provided on opposite sides of the first bracket (11) and the second bracket (12); and a clamping slot (14) is provided on the limit plate (13); The top surfaces of the first bracket (11) and the second bracket (12) are both provided with a clamping assembly (20), and the clamping assembly (20) comprises: Mounting seat (21); A mounting rod (24) is rotatably connected to the mounting seat (21); a first mounting groove (241) and a second mounting groove (242) are provided on one side of the mounting rod (24); the first mounting groove (241) and the second mounting groove (242) are parallel to each other; a first through hole (243) penetrating the mounting rod (24) is provided at one end of the first mounting groove (241); and a second through hole (244) penetrating the mounting rod (24) is provided at one end of the second mounting groove (242); An adjusting rod (22), comprising a first adjusting rod (221) arranged in the first mounting groove (241) and a second adjusting rod (222) arranged in the second mounting groove (242), one end of the first adjusting rod (221) extending outside the mounting rod (24) through the first through hole (243), one end of the second adjusting rod (222) extending outside the mounting rod (24) through the second through hole (244), and the first adjusting rod (221) and the second adjusting rod (222) can move towards each other or move away from each other; A clamping claw (23), comprising a first clamping member (231) provided on the first adjusting rod (221) and a second clamping member (232) provided on the second adjusting rod (222); A limiting rod (26) is provided at one end of the installation rod (24), one end of the limiting rod (26) is arranged between the first through hole (243) and the second through hole (244), guide grooves (261) are provided on the sides of the limiting rod (26) close to the first through hole (243) and the second through hole (244), and a limiting hole (262) connected to the guide groove (261) is provided at one end of the limiting rod (26) close to the installation rod (24); A first groove (223) is provided on a side of the first adjusting rod (221) close to the limiting rod (26); a third spring (253) is provided in the first groove (223); a first limiting block (271) is provided at one end of the third spring (253) away from the bottom wall of the first groove (223); the first limiting block (271) can slide on the guide groove (261) and the limiting hole (262); and a side of the first limiting block (271) away from the third spring (253) is an inclined surface; A second groove is provided on a side of the second adjustment rod (222) close to the limiting rod (26), a fourth spring is provided on the second groove, a second limiting block is provided on an end of the fourth spring away from the bottom wall of the second groove, the second limiting block can slide on the guide groove (261) and the limiting hole (262), and a side of the second limiting block away from the fourth spring is an inclined surface; An adjustment button (28) is provided on one end of the first adjustment rod (221) and the second adjustment rod (222) protruding from the mounting rod (24).

2. The vertical baking jig for flexible circuit boards according to claim 1, characterized in that: There are two mounting seats (21), which are respectively arranged at two ends of the top surface of the first bracket (11) or the second bracket (12); mounting holes (211) are provided on the mounting seats (21), and two ends of the mounting rod (24) pass through the mounting holes (211).

3. The vertical baking jig for flexible circuit boards according to claim 1, characterized in that: A first spring (251) is arranged in the first mounting groove (241), one end of the first spring (251) is connected to one end of the first mounting groove (241) away from the first through hole (243), and the other end is connected to the first adjustment rod (221); a second spring (252) is arranged in the second mounting groove (242), one end of the second spring (252) is connected to one end of the second mounting groove (242) away from the second through hole (244), and the other end is connected to the second adjustment rod (222).

4. The vertical baking jig for flexible circuit boards according to claim 2, characterized in that: An annular groove (212) is provided on the inner annular surface of the mounting hole (211), a plurality of limiting grooves (213) are provided on the bottom wall surface of the annular groove (212) at equal intervals, and the side wall surface of the limiting groove (213) is an inclined surface; A third groove (245) corresponding to the annular groove (212) is provided on the side surface of the mounting rod (24), a fifth spring (255) is provided on the third groove (245), and a third limiting block (273) corresponding to the limiting groove (213) is provided at one end of the fifth spring (255) away from the bottom wall of the third groove (245).

5. The vertical baking jig for flexible circuit boards according to claim 1, characterized in that: It also includes an adjustment component (30), wherein the adjustment component (30) is used to adjust the distance between the first bracket (11) and the second bracket (12); The adjustment assembly (30) comprises a connecting rod (31) arranged on a side of the first bracket (11) close to the second bracket (12) and a sleeve (32) arranged on a side of the second bracket (12) close to the first bracket (11); the connecting rod (31) can be inserted into the sleeve (32); a threaded hole (33) is provided on a side wall of the sleeve (32); a bolt (34) passes through the threaded hole (33) to fix the connecting rod (31) and the sleeve (32).

6. The vertical baking jig for flexible circuit boards according to claim 5, characterized in that: The connecting rod (31) and the sleeve (32) are both provided with a U-shaped plate (35).

7. The vertical baking jig for a flexible circuit board according to claim 1, characterized in that: An elastic limiting member (15) is provided on one side of the clamping slot (14), and the elastic limiting member (15) is a stainless steel wire rope.

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