Fixture for circuit board processing

Abstract

The utility model relates to the technical field of circuit boards, in particular to a fixture for processing a circuit board, which comprises a base. The fixing mechanism is used for fixing a circuit board and is arranged at the top end of the base; wherein the fixing mechanism comprises a mounting column rotationally connected to the middle of the top end of the base, and the top end of the mounting column is fixedly connected; when a circuit board is fixed, a threaded rod is rotated, a connecting plate drives a rotating ring to move downwards, mounting rods are driven to slide towards the center point of the mounting plate under the action of the connecting rod and a sliding block, and the four mounting rods move towards the center point of the mounting plate at the same time, so that the four corners of the circuit board can enter corresponding fixing clamping blocks, and the circuit board is fixed. When the circuit board is machined, the four fixing clamping blocks abut against and fix the circuit board from the four corners of the circuit board, the circuit board is in a stable state all the time during fixing, the stability of the circuit board in the machining process is improved, and therefore the machining quality of the circuit board is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a clamp for processing circuit boards. Background Art

[0002] With the rapid development of electronic products, people's demand for electronic products is also increasing. In the production process of electronic products, the main technology lies in the processing of circuit boards. During the processing and production of circuit boards, the circuit boards need to be processed in different processes, so special fixtures are needed to fix the circuit boards for easy work.

[0003] The design of the clamping mechanism of the Chinese patent "A clamp for circuit board processing" authorization announcement number "CN220087575U" is that when the circuit board is placed on the top of the movable plate, the movable column is pulled by the tension spring so that the clamping piece can fix the corners of the circuit board. The circuit board can be fixed on the top of the movable plate by the cooperation of four clamping pieces.

[0004] In the above scheme, a tension spring is used to drive the clamping member to fix the circuit board. However, the tension spring itself has a certain elasticity. The circuit board requires high precision during processing. When the elastic force of the tension spring is used to fix it, the instability of the circuit board during processing will increase, thereby affecting the processing quality of the circuit board.

[0005] Therefore, a circuit board processing fixture is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a clamp for processing circuit boards in order to solve the above-mentioned problem, thereby improving the problem that the tension spring itself has a certain elasticity, and the circuit board requires a high degree of precision when it is processed. When the elastic force of the tension spring is used to fix it, the instability of the circuit board during processing will be increased, thereby affecting the processing quality of the circuit board.

[0007] The utility model achieves the above-mentioned purpose through the following technical scheme. A clamp for processing a circuit board comprises: a base; a fixing mechanism, wherein the fixing mechanism is arranged at the top end of the base for fixing the circuit board; wherein the fixing mechanism comprises a mounting column rotatably connected to the middle part of the top end of the base, the top end of the mounting column is fixedly connected to a mounting plate, the top end of the mounting plate is slidably connected to four mounting rods, the four mounting rods are distributed in a rectangular shape, the top ends of the mounting rods are fixedly connected to a fixing block, and the top end of the base is fixedly connected to a fixing component.

[0008] Preferably, the fixing assembly includes two U-shaped plates respectively fixedly connected to both sides of the top of the base, a threaded rod is rotatably connected to one side of the top of the base, the top of the threaded rod passes through one of the U-shaped plates, the surface of the threaded rod is threadedly connected to a connecting plate, the inner wall of the connecting plate is fixedly connected to a circular ring, the top of the circular ring is rotatably connected to a rotating ring, the bottom end of the mounting rod is fixedly connected to a slider, the bottom end of the slider is hinged to a connecting rod, and the other ends of the four connecting rods are hinged to the surface of the rotating ring. When fixing the circuit board, the threaded rod is rotated so that the connecting plate drives the rotating ring to move downward, and under the action of the connecting rod and the slider, it is conducive to driving the four mounting rods to slide toward the center point of the mounting plate at the same time to fix the circuit board.

[0009] Preferably, the fixed block is in an "L" shape, and the inner bottom wall of the fixed block is rotatably connected to the rubber balls distributed in equal rows. When the corner of the circuit board enters the fixed block, the provision of the rubber balls is conducive to reducing the friction between the circuit board and the inner bottom wall of the fixed block when the circuit board enters the fixed block, and under the action of the rubber balls, the surface of the circuit board is effectively protected.

[0010] Preferably, a knob and a fixing ring are fixedly connected to the middle of the top of the mounting plate, the knob is arranged on the inner side of the fixing ring, the inner wall of the fixing ring is threadedly connected with a bolt, one end of the bolt penetrates the inner side of the fixing ring and is fixedly connected to the limiting plate. When the mounting plate needs to be fixed, the bolt and the limiting plate cooperate with each other, which is conducive to fixing the knob, thereby fixing the mounting plate, ensuring the stability of the mounting plate and the circuit board during the process of fixing the circuit board and when processing after the fixing is completed.

[0011] Preferably, the inner wall of the limit plate fits the surface of the knob, and the inner wall of the limit plate is provided with grooves distributed in equal rows. When limiting the knob, it is beneficial to increase the friction between the limit plate and the knob surface, thereby enhancing the limiting effect of the limit plate on the knob.

[0012] Preferably, the top of the mounting plate is provided with four slide grooves, which are distributed in a rectangular shape and are arranged on the diagonal lines of the mounting plate, and the surface of the slider is slidably connected to the inner side of the corresponding slide groove. The cooperation between the slider and the slide groove is conducive to limiting the movement of the mounting rod, ensuring that the four mounting rods move toward the center point of the mounting plate when moving.

[0013] Preferably, a limiting rod is fixedly connected to the other side of the top of the base, the top of the limiting rod is fixedly connected to the bottom of another U-shaped plate, and the inner wall of the other end of the connecting plate is slidably connected to the surface of the limiting rod. This is conducive to limiting the up and down movement of the connecting plate and ensuring the stability of the connecting plate when it moves up and down.

[0014] Preferably, the circular ring and the rotating ring are sleeved on the surface of the mounting column, which is helpful to ensure the normal rotation of the mounting column.

[0015] The beneficial effects of the utility model are:

[0016] 1. When fixing the circuit board, rotate the threaded rod to make the connecting plate drive the rotating ring to move downward, and drive the mounting rod to slide toward the center point of the mounting plate under the action of the connecting rod and the slider. Using four mounting rods to move toward the center point of the mounting plate at the same time is conducive to making the four corners of the circuit board enter the corresponding fixed blocks. When the circuit board is being processed, the four fixed blocks are used to fix the circuit board from the four corners of the circuit board, and the circuit board is always in a stable state when fixed, which is conducive to improving the stability of the circuit board during processing, thereby ensuring the processing quality of the circuit board;

[0017] 2. When the corner of the circuit board enters the fixed block, the setting of the rubber ball is conducive to reducing the friction between the circuit board and the bottom wall of the fixed block when the circuit board enters the fixed block, and under the action of the rubber ball, the surface of the circuit board is effectively protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the fixing mechanism structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the fixing assembly of the utility model;

[0021] Figure 4 This is a schematic diagram of the fixed plate structure of the utility model;

[0022] Figure 5 It is a cross-sectional view of the fixing ring of the utility model.

[0023] In the figure: 1. base; 2. fixing mechanism; 201. mounting column; 202. mounting plate; 203. mounting rod; 204. fixing block; 2041. rubber ball; 205. fixing assembly; 2051. U-shaped plate; 2052. threaded rod; 2053. connecting plate; 2054. ring; 2055. rotating ring; 2056. slider; 2057. connecting rod; 2058. limiting rod; 2059. slide groove; 206. knob; 2061. fixing ring; 2062. bolt; 2063. limiting plate. DETAILED DESCRIPTION

[0024] 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.

[0025] When implementing: Figure 1-5 As shown, a clamp for processing a circuit board comprises: a base 1; a fixing mechanism 2, wherein the fixing mechanism 2 for fixing the circuit board is arranged at the top of the base 1; wherein the fixing mechanism 2 comprises a mounting column 201 rotatably connected to the middle part of the top of the base 1, the top of the mounting column 201 is fixedly connected to a mounting plate 202, the top of the mounting plate 202 is slidably connected to four mounting rods 203, the four mounting rods 203 are distributed in a rectangular shape, the top of the mounting rods 203 is fixedly connected to a fixing block 204, and the top of the base 1 is fixedly connected to a fixing component 205.

[0026] Four mounting rods 203 are arranged at diagonal positions of the mounting plate 202, and the four mounting plates 202 slide toward the center point of the mounting plate 202. When the circuit board needs to be fixed, one of the corners of the circuit board is first inserted into the groove of any fixing block 204, and the fixing component 205 is driven to operate to fix the circuit board.

[0027] like Figure 2 , Figure 3 and Figure 4 As shown, the fixing assembly 205 includes two U-shaped plates 2051 respectively fixedly connected to both sides of the top of the base 1, a threaded rod 2052 is rotatably connected to one side of the top of the base 1, the top of the threaded rod 2052 penetrates one of the U-shaped plates 2051, the surface of the threaded rod 2052 is threadedly connected to a connecting plate 2053, the inner wall of the connecting plate 2053 is fixedly connected to a ring 2054, the top of the ring 2054 is rotatably connected to a rotating ring 2055, the bottom end of the mounting rod 203 is fixedly connected to a slider 2056, the bottom end of the slider 2056 is hinged to a connecting rod 2057, and the other ends of the four connecting rods 2057 are hinged to the surface of the rotating ring 2055. The top of the mounting plate 202 is provided with four slide grooves 2059, the four slide grooves 2059 are distributed in a rectangular shape, and the four slide grooves 2059 are provided on the diagonal lines of the mounting plate 202, and the surface of the slider 2056 is slidably connected to the inner side of the corresponding slide groove 2059. The circular ring 2054 and the rotating ring 2055 are sleeved on the surface of the mounting post 201 .

[0028] Rotating the threaded rod 2052 causes the connecting plate 2053 to move downward, thereby causing the circular ring 2054 to drive the rotating ring 2055 to move downward. When the rotating ring 2055 moves downward, it will drive the other ends of the four connecting rods 2057 to move downward at the same time, causing the angles between the four connecting rods 2057 and the horizontal plane to gradually increase. At this time, the four connecting rods 2057 will pull the corresponding four sliders 2056 to move, and cause the four sliders 2056 to drive the mounting plate 202 to approach each other, thereby causing the four fixed blocks 204 to approach each other. At this time, the rectangle formed by the four fixed blocks 204 will gradually become smaller. During the movement of the fixed blocks 204, the grooves of the other three fixed blocks 204 will contact the other three corners of the circuit board. During the continued movement of the fixed blocks 204, the other three corners of the circuit board will enter the corresponding fixed blocks 204. At this time, the four fixed blocks 204 will achieve a tight fixation of the circuit board from the four corners of the circuit board.

[0029] like Figure 5 As shown, the shape of the fixed block 204 is "L"-shaped, and the inner bottom wall of the fixed block 204 is rotatably connected to the rubber balls 2041 distributed in equal rows.

[0030] When the rubber ball 2041 is squeezed, it will deform to a certain extent. When the four corners of the circuit board enter the fixed block 204, the bottom ends of the four corners of the circuit board contact the surface of the rubber ball 2041. When the other three corners of the circuit board enter the fixed block 204, they will push the rubber ball 2041 to rotate.

[0031] like Figure 2 and Figure 5 As shown, a knob 206 and a fixing ring 2061 are fixedly connected to the middle of the top of the mounting plate 202, the knob 206 is arranged on the inner side of the fixing ring 2061, a bolt 2062 is threadedly connected to the inner wall of the fixing ring 2061, one end of the bolt 2062 penetrates the inner side of the fixing ring 2061 and is fixedly connected to a limiting plate 2063. The inner wall of the limiting plate 2063 is fitted with the surface of the knob 206, and the inner wall of the limiting plate 2063 is provided with grooves distributed in equal rows.

[0032] When the circuit board is fixed and needs to be rotated, the mounting plate 202 and the mounting column 201 can be rotated by rotating the knob 206. After the rotation is completed, the bolt 2062 is rotated to push the limit plate 2063 to move, so that the inner wall of the limit plate 2063 contacts the surface of the knob 206 and presses the knob 206 tightly, thereby completing the fixation of the knob 206 and thus completing the fixation of the mounting plate 202.

[0033] like Figure 2As shown, the other side of the top of the base 1 is fixedly connected to a limiting rod 2058, the top of the limiting rod 2058 is fixedly connected to the bottom of another U-shaped plate 2051, and the inner wall of the other end of the connecting plate 2053 is slidably connected to the surface of the limiting rod 2058. When the connecting plate 2053 moves up and down, the inner wall of the other end of the connecting plate 2053 moves up and down along the surface of the limiting rod 2058.

[0034] When the utility model is in use, when fixing the circuit board, first insert one of the corners of the circuit board into the groove of any one of the fixed blocks 204, and rotate the threaded rod 2052 to move the connecting plate 2053 downward, so that the ring 2054 drives the rotating ring 2055 to move downward, at this time, the other ends of the four connecting rods 2057 move downward at the same time, the four connecting rods 2057 will pull the corresponding four sliders 2056 to move, and the four sliders 2056 drive the mounting plates 202 to approach each other and move toward the center point of the mounting plate 202 at the same time, so that the four fixed blocks 204 are close to each other, At this time, the rectangle formed by the four fixed blocks 204 will gradually become smaller. During the movement of the fixed blocks 204, the other three corners of the circuit board will enter the grooves of the other three fixed blocks 204, and the bottom end of the circuit board will contact the surface of the rubber ball 2041 on the bottom wall of the fixed blocks 204. During the continued movement of the fixed blocks 204, the corners of the circuit board will continue to enter the grooves of the fixed blocks 204 and cause the rubber ball 2041 to rotate. When the fixed blocks 204 cannot move any further, the four fixed blocks 204 will firmly fix the circuit board from the four corners of the circuit board.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A clamp for processing a circuit board, characterized in that: include: Base (1); A fixing mechanism (2) for fixing the circuit board, wherein the fixing mechanism (2) is arranged on the top of the base (1); The fixing mechanism (2) comprises a mounting column (201) rotatably connected to the middle part of the top end of the base (1); the top end of the mounting column (201) is fixedly connected to a mounting plate (202); the top end of the mounting plate (202) is slidably connected to four mounting rods (203); the four mounting rods (203) are distributed in a rectangular shape; the top end of the mounting rods (203) is fixedly connected to a fixing block (204); and the top end of the base (1) is fixedly connected to a fixing assembly (205).

2. A circuit board processing fixture according to claim 1, characterized in that: The fixing assembly (205) comprises two U-shaped plates (2051) respectively fixedly connected to both sides of the top of the base (1); a threaded rod (2052) is rotatably connected to one side of the top of the base (1); the top of the threaded rod (2052) passes through one of the U-shaped plates (2051); a connecting plate (2053) is threadedly connected to the surface of the threaded rod (2052); a circular ring (2054) is fixedly connected to the inner wall of the connecting plate (2053); the top of the circular ring (2054) is rotatably connected to a rotating ring (2055); a slider (2056) is fixedly connected to the bottom end of the mounting rod (203); a connecting rod (2057) is hingedly connected to the bottom end of the slider (2056); and the other ends of the four connecting rods (2057) are hingedly connected to the surface of the rotating ring (2055).

3. A circuit board processing fixture according to claim 1, characterized in that: The fixed block (204) is in an "L" shape, and the inner bottom wall of the fixed block (204) is rotatably connected to the rubber balls (2041) distributed in equal rows.

4. A circuit board processing fixture according to claim 1, characterized in that: A rotating knob (206) and a fixing ring (2061) are fixedly connected to the middle of the top end of the mounting plate (202); the rotating knob (206) is arranged on the inner side of the fixing ring (2061); a bolt (2062) is threadedly connected to the inner wall of the fixing ring (2061); one end of the bolt (2062) penetrates the inner side of the fixing ring (2061) and is fixedly connected to a limiting plate (2063).

5. A circuit board processing fixture according to claim 4, characterized in that: The inner wall of the limiting plate (2063) is in contact with the surface of the rotating knob (206), and the inner wall of the limiting plate (2063) is provided with grooves distributed in equal rows.

6. A circuit board processing fixture according to claim 2, characterized in that: The top of the mounting plate (202) is provided with four slide grooves (2059), the four slide grooves (2059) are distributed in a rectangular shape, the four slide grooves (2059) are arranged on the diagonal lines of the mounting plate (202), and the surface of the slider (2056) is slidably connected to the inner side of the corresponding slide groove (2059).

7. A circuit board processing fixture according to claim 2, characterized in that: The other side of the top of the base (1) is fixedly connected to a limiting rod (2058), the top of the limiting rod (2058) is fixedly connected to the bottom of another U-shaped plate (2051), and the inner wall of the other end of the connecting plate (2053) is slidably connected to the surface of the limiting rod (2058).

8. A circuit board processing fixture according to claim 2, characterized in that: The circular ring (2054) and the rotating ring (2055) are sleeved on the surface of the mounting column (201).

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