Novel assembly alignment jig

Abstract

The utility model discloses a novel assembling alignment jig which comprises a base, a sheet metal part alignment groove is formed in the upper surface of the base, a plurality of connecting column through holes are formed in the sheet metal part alignment groove, an upper sheet metal part can be placed in the sheet metal part alignment groove in a matched mode, and the depth of the sheet metal part alignment groove is larger than the thickness of the upper sheet metal part. A connecting column fixed on the upper sheet metal part is inserted into the connecting column through hole in a matched manner; a jacking notch is formed in one side of the sheet metal part alignment groove, a spring pressing mechanism is arranged at the jacking notch, and the upper sheet metal part can be horizontally and elastically pressed inwards or separated outwards in the vertical direction of the groove edge on the side. The assembling alignment jig can achieve accurate and stable alignment when the sheet metal part and the display panel are bonded, production efficiency is improved, and the rejection rate is greatly reduced.

Description

Technical Field

[0001] This utility model relates to a jig, and more particularly to an assembly alignment jig. Background Technology

[0002] Display panel components are used in many devices, such as CT scanners. Generally, display panel components consist of six parts, including a circuit board 1, sheet metal structural parts, and an acrylic display panel. The circuit board 1 is equipped with a light-emitting digital tube 2, which serves as an essential digital display for the equipment.

[0003] Specifically, such as Figure 1 As shown, the product includes an upper sheet metal part 3 and a lower sheet metal part 4. The upper and lower sheet metal parts 3 and 4 are fixedly connected to each other by connecting posts 5. A circuit board 1 is disposed between the upper and lower sheet metal parts 3 and 4 and fixedly connected to the lower sheet metal part 4. A digital tube 2 is fixedly mounted on the circuit board 1 to display numbers and symbols. An acrylic display panel 6 is fixedly adhered to the outer surface of the upper sheet metal part 3. The upper sheet metal part 3 is hollowed out at the position of the digital tube 2. The display panel 6 is opaque in the non-display area, but transparent in the digital display area that matches the digital tube 2's display text. The style of the display panel 6 is as follows. Figure 2 As shown. Therefore, during the bonding process between the display panel 6 and the upper sheet metal part 3, a tight fit must be achieved, with a dimensional error of ±0.3mm. This ensures that the light from the digital tube 2 passes completely through the transparent area of ​​the display panel 6 without any deviation. If there is any deviation in the bonding between the display panel 6 and the upper sheet metal part 3, the display of numbers or symbols on the digital tube 2 will be obscured to varying degrees, resulting in defective or scrapped products. This would directly render a set of upper sheet metal parts 3 and display panel 6 unusable, causing significant waste and impacting work efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a uniquely structured assembly alignment fixture that can achieve accurate and stable alignment when bonding sheet metal parts and display panels, thereby improving production efficiency and greatly reducing the scrap rate.

[0005] To solve this technical problem, the technical solution adopted by this utility model is as follows:

[0006] A novel assembly alignment fixture includes a base, the upper surface of which is provided with a sheet metal alignment groove, and a plurality of connecting post through holes are provided in the sheet metal alignment groove. The upper sheet metal part can be matched and placed into the sheet metal alignment groove. The depth of the sheet metal alignment groove is greater than the thickness of the upper sheet metal part, and the connecting post fixed on the upper sheet metal part can be matched and inserted into the connecting post through holes.

[0007] A top pressing notch is provided on one side of the alignment groove of the sheet metal part, and a spring pressing mechanism is provided at the top pressing notch, which can elastically press the upper sheet metal part horizontally inward or outward along the vertical direction of this groove side.

[0008] Furthermore, the spring clamping mechanism includes a pressure block, a top plate, a push rod, a guide ring, and a push rod driving mechanism; when the pressure block presses inward, the highest line of its pressing surface does not exceed the upper plane of the upper sheet metal part; the pressure block and the base are slidably connected along the movement direction of the pressure block through a keyway structure; the pressure block and the top plate are slidably connected along the movement direction of the pressure block through at least one set of guide rods and guide hole structures; and a compression spring is sleeved on the guide rod between the pressure block and the top plate; one end of the guide rod is fixedly connected to either the pressure block or the top plate, and the other end is provided with an axial limiting structure, so that when the compression spring is in the open state, the continued outward movement of the top plate can pull the pressure block outward;

[0009] The top plate is fixedly connected to the top rod, and the guide ring is sleeved on the outside of the top rod so that the top rod can slide along the direction of movement of the pressure block. The guide ring is fixedly connected to the base.

[0010] The push rod drive mechanism drives the push rod forward or backward, thereby driving the pressure block to elastically press the upper sheet metal part in the sheet metal part alignment groove or to disengage it outward; when the pressure block is pressing the upper sheet metal part inward, the compression spring is in an elastic compression state due to the pressure of the pressure blocks and the top plate on both sides.

[0011] Furthermore, the push rod driving mechanism is a crank-connecting rod mechanism, including a crank and a connecting rod. The crank is hinged to a crank seat, the crank seat is fixedly connected to the base, the crank is hinged to the connecting rod, and the connecting rod is hinged to the push rod. The crank extends outward at the end connected to the connecting rod to form an operating handle. Moving the operating handle forward or backward drives the push rod to move forward or backward.

[0012] Furthermore, after the upper sheet metal part and the display panel are matched and placed in the sheet metal part alignment groove, the upper surface of the display panel is higher than the upper edge of the sheet metal part alignment groove; at least one movable stop is provided on the outer edge of the sheet metal part alignment groove on the same side as the spring pressing mechanism. The connection between the movable stop and the base is a fixed connection that can be adjusted inward and outward along the vertical direction of the edge. After the upper sheet metal part and the display panel are matched and placed in the sheet metal part alignment groove, the movable stop on the side can be adjusted to move inward to the edge of the edge, press against the display panel, and then be fixedly connected to the base, so that the display panel can be accurately and stably aligned with the upper sheet metal part.

[0013] Furthermore, the movable stop and the base are fixedly connected in an adjustable manner along the vertical direction of the edge, wherein the movable stop and the base are connected by at least two sets of bolt and screw hole structures.

[0014] Each set of bolt and screw hole structures is as follows: the base is provided with a screw hole at the matching position, the movable stop is provided with an oblong hole, the axis of the oblong hole along its length is perpendicular to the side, and the bolt passes through the oblong hole and is threadedly connected to the base through the screw hole.

[0015] Furthermore, one of the outer edges of the side adjacent to the side where the spring clamping mechanism is located in the alignment groove of the sheet metal part is also provided with at least one movable stop. The connection between the movable stop and the base is a fixed connection that can be adjusted inward and outward along the vertical direction of the side. After the upper sheet metal part and the display panel are matched and placed in the alignment groove of the sheet metal part, the movable stop on the side can be adjusted to move inward to the edge of the side to press against the display panel and then be fixedly connected to the base.

[0016] Furthermore, at least one fixing block is provided on the outer edge of the other two sides of the alignment groove of the sheet metal part. The fixing block is fixedly connected to the base, and the inner side of the fixing block is flush with the side of the alignment groove of the sheet metal part.

[0017] The alignment fixture of this utility model has a unique structure. The upper sheet metal part and the display panel can be embedded in the alignment groove of the sheet metal part. However, since the upper sheet metal part needs to be placed and removed, the size of the alignment groove of the sheet metal part will always have a positive tolerance. This can easily cause misalignment when the display panel is glued. At this time, a spring clamping mechanism set at the top pressure notch is required to elastically press the upper sheet metal part from one side inward. Then, when the display panel is glued, it is only necessary to hold the opposite side of the spring clamping mechanism to accurately position it.

[0018] Since the upper sheet metal parts and display panel are precisely dimensional components, they cannot withstand excessive rigid compressive force. Therefore, ordinary pressure mechanisms are unsuitable, as they may damage the product components. Thus, a spring-loaded clamping mechanism is used to elastically clamp and position the upper sheet metal parts towards the opposite side.

[0019] Furthermore, the elastic clamping mechanism uses a pressure block to press against the upper sheet metal part, and a crank-connecting rod mechanism to push and press the pressure block. When the pressure block is pressing inward against the upper sheet metal part, the compression spring is in an elastic compression state due to the pressure from the pressure blocks and the top plate on both sides. At this time, the lateral pushing force on the upper sheet metal part by the pressure block is a non-rigid elastic pressure, which can both clamp the upper sheet metal part and prevent damage to it. Attached Figure Description

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0021] Figure 1 This is a structural diagram of the display panel assembly.

[0022] Figure 2 This is a schematic diagram of the display panel.

[0023] Figure 3 This is a side view of the assembly and alignment fixture of this utility model.

[0024] Figure 4 This is a top view of the assembly and alignment fixture of this utility model.

[0025] Figure 5 This is a schematic diagram of the spring clamping mechanism.

[0026] Figure 6 This is one of the cross-sectional structural diagrams of a spring clamping mechanism. Figure 4 In section AA, the operating handle is in the forward-pressing state.

[0027] Figure 7 This is the second cross-sectional schematic diagram of the spring clamping mechanism. Figure 4 In section AA, the operating handle is in the rearward released position.

[0028] In the picture:

[0029] 1. Circuit board 2. Digital tube

[0030] 3. Upper sheet metal part; 4. Lower sheet metal part

[0031] 5. Connecting column; 6. Display panel

[0032] 7. Base 701, sheet metal alignment groove

[0033] 702. Connecting column through hole; 703. Top pressure notch

[0034] 8. Pressing block 9. Top plate

[0035] 10. Top rod; 11. Guide ring

[0036] 12. Guide key 13. Guide rod

[0037] 1301, Limiting flange 14, Compression spring

[0038] 15. Crank 1501, Operating handle

[0039] 16. Connecting rod 17. Crank seat

[0040] 18. Movable stop block 19. Fixed stop block Detailed Implementation

[0041] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0042] Figure 3 , Figure 4 A novel assembly alignment fixture is shown, including a base 7. The upper surface of the base 7 is provided with a sheet metal alignment groove 701. The sheet metal alignment groove 701 is provided with a plurality of connecting post through holes 702. The upper sheet metal part 3 can be matched and placed into the sheet metal alignment groove 701. The depth of the sheet metal alignment groove 701 is greater than the thickness of the upper sheet metal part 3. The connecting post 5 fixed on the upper sheet metal part 3 can be matched and inserted into the connecting post through holes 702.

[0043] A top pressing notch 703 is provided on one side of the alignment groove 701 of the sheet metal part, and a spring pressing mechanism is provided at the top pressing notch 703, which can elastically press the upper sheet metal part 3 horizontally inward or disengage it outward along the vertical direction of this groove side.

[0044] like Figure 5 As shown, the spring clamping mechanism includes a pressure block 8, a top plate 9, a push rod 10, a push rod guide ring 11, and a push rod driving mechanism; when the pressure block 8 presses inward, the highest line of its pressing surface does not exceed the upper plane of the upper sheet metal part 3, such as... Figure 6 , Figure 7 As shown, the pressure block 8 and the base 7 are connected in a sliding manner along the movement direction of the pressure block 8 by a keyway structure. Specifically, the bottom plane of the pressure block 8 is provided with a sliding groove, and a guide key 12 is provided at a matching position on the base 7. The sliding groove of the pressure block 8 is fastened to the guide key 12.

[0045] The pressure block 8 and the top plate 9 are slidably connected along the movement direction of the pressure block 8 by two sets of guide rods 13 and guide holes. A compression spring 14 is sleeved on the guide rod 13 between the pressure block 8 and the top plate 9. The guide rod 13 is fixedly connected to the pressure plate 8 (it can be a threaded connection). A guide hole is provided at the matching position of the top plate 9, and the guide rod 13 passes through the guide hole to achieve guided sliding. A limiting flange 1301 is provided at one end of the guide rod 13 on the top plate 9, so that when the top plate 9 moves to the right and the compression spring 14 is in the open state, the top plate 9 can be pulled to the right (outward) by continuing to move to the right (outward). The guide rod 13 can be a bolt, and the limiting flange 1301 is the bolt head.

[0046] The aforementioned guiding structure can also involve a guide rod 13 fixedly connected to the top plate 9, with a guide hole provided at the matching position of the pressure block 8. The guide rod 13 passes through the guide hole to achieve guided sliding, and a limiting flange 1301 is provided at one end of the guide rod 13 on one side of the pressure block 8. As long as one end of the guide rod 13 is fixedly connected to either the pressure block 8 or the top plate 9, and its other end is provided with an axial limiting structure, when the compression spring 14 is in the spring-open state, continuing to move the top plate 9 outward can pull the pressure block 8 outward.

[0047] The top plate 9 is fixedly connected to the top rod 10, and the guide ring 11 is sleeved on the top rod 10 so that the top rod 9 can slide along the movement direction of the pressure block 8. The guide ring 11 is fixedly connected to the base 7.

[0048] The push rod drive mechanism drives the push rod 9 forward or backward, thereby driving the pressure block 8 to elastically press the upper sheet metal part in the sheet metal part alignment groove 701 or to disengage outward; when the pressure block 8 is pressing the upper sheet metal part 3 inward, the compression spring 14 is in an elastic compression state due to the pressure of the pressure blocks 8 and the top plate 9 on both sides.

[0049] The push rod drive mechanism is a crank-connecting rod mechanism, including a crank 15 and a connecting rod 16. The crank 15 is hinged to a crank seat 17, the crank seat 17 is fixedly connected to the base 7, the crank 15 is hinged to the connecting rod 16, and the connecting rod 16 is hinged to the push rod 10. The crank 15 extends outward at the end connected to the connecting rod 16 to form an operating handle 1501. Moving the operating handle 1501 forward or backward will drive the push rod 10 to move forward or backward.

[0050] The push rod drive mechanism can also be other existing structural forms, such as a manual push rod and locking mechanism. The rear end of the push rod 10 is provided with a push rod. When the push rod 10 is pushed forward to the position, the push rod is limited by the locking mechanism to prevent it from moving backward (the locking mechanism can be a lateral sliding limit block), thereby ensuring that the pressure block 8 elastically presses the upper sheet metal part 3 inward when it pushes inward.

[0051] To ensure more precise and stable positioning between the upper sheet metal part 3 and the display panel 6, a stop structure can be provided on the outer edge of the sheet metal part alignment groove 701, such as... Figure 4As shown, after the upper sheet metal part 3 and the display panel 6 are matched and placed in the sheet metal part alignment groove 701, the upper surface of the display panel 6 is higher than the upper edge of the sheet metal part alignment groove 701. Two movable blocks 18 are provided on the outer edge of the sheet metal part alignment groove 701 on the same side as the spring pressing mechanism (right side in the figure). The connection between the movable blocks 18 and the base 7 is a fixed connection that can be adjusted inward and outward along the vertical direction of the edge. After the upper sheet metal part 3 and the display panel 6 are matched and placed in the sheet metal part alignment groove 701, the movable blocks 18 on the side can be adjusted to move inward to the edge of the edge, press against the display panel 6, and then be fixedly connected to the base 7, so that the display panel 6 can be accurately and stably aligned with the upper sheet metal part 3.

[0052] The movable stop 18 and the base 7 are fixedly connected in an adjustable manner along the vertical direction of the side as follows: the movable stop 18 and the base 7 are connected by two sets of bolt holes. Specifically, the base 7 has a bolt hole at the matching position, and the movable stop 18 has an oblong hole. The axis of the oblong hole is perpendicular to the side. The bolt passes through the oblong hole and is threaded to the base 7 through the bolt hole, thereby fixing the movable stop 18 and the base 7.

[0053] The structure in which the movable stop 18 and the base 7 are fixedly connected in an adjustable position along the vertical direction of the edge can also be achieved through other conventional structures, such as a bolt and nut and a hole and slot connection structure. Specifically, the base 7 is provided with an inverted T-shaped groove at the matching position, the length axis of which extends along the vertical direction of the edge. The inverted T-shaped groove includes a straight groove and a T-shaped part at the bottom. The movable stop 18 is provided with a through hole. A nut is provided in the T-shaped part, which can move axially but is restricted from rotation. A bolt passes through the through hole of the movable stop and the straight groove of the inverted T-shaped groove and is threaded to the nut. After the movable stop 18 is adjusted to a suitable position, the bolt is tightened to fix the position of the movable stop 18.

[0054] One side of the sheet metal part alignment groove 701 is adjacent to the side on the same side as the side where the spring clamping mechanism is located. Figure 4 Four movable blocks 18 are also provided on the outer edge of the lower side (which can be the base 7). The connection between the movable blocks 18 and the base 7 is a fixed connection that can be adjusted inward and outward along the vertical direction of the edge. After the upper sheet metal part 3 and the display panel 6 are matched and placed in the sheet metal part alignment groove 701, the movable blocks 18 on the side can be adjusted to move inward along the edge of the edge to hold the display panel 6 in place before being fixedly connected to the base 7. The connection structure between the movable blocks 18 and the base 7 is the same as described above.

[0055] At least one fixed stop 19 is provided on the outer edge of the other two sides (left and top) of the sheet metal alignment groove 701 (two on the left edge and four on the top edge respectively). The fixed stop 19 is fixedly connected to the base 9, and the inner side of the fixed stop 19 is flush with the side of the sheet metal alignment groove 701.

[0056] The steps for working are as follows:

[0057] 1. First, move all movable blocks 18 outwards, and then turn the operating handle 1501 to the right to move the pressure block outwards (to the right).

[0058] 2. Place the upper sheet metal part 3 into the sheet metal part alignment groove 701, and press the upper sheet metal part 3 against the left and upper sides of the sheet metal part alignment groove 701.

[0059] 3. Move the operating handle 1501 to the left, causing the pressure block to move to the left, the compression spring 14 to be in a compressed state, and the pressure block 8 to elastically press the upper sheet metal part 3.

[0060] 4. Place the display panel 6 in the center, and move it upwards and to the left towards the fixed block 19.

[0061] 5. Make all the movable blocks 18 press inward against the display panel 6, and then tighten the bolts to fix the movable blocks. This will achieve precise and stable alignment between the display panel 6 and the upper sheet metal part 3, and will not cause misalignment during subsequent repeated operations.

[0062] 6. Apply an adhesive layer to the bonding surface of the display panel 6, and then align and bond it.

[0063] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A novel assembly alignment fixture, characterized in that: Includes a base, the upper surface of which is provided with a sheet metal alignment groove, and a plurality of connecting post through holes are provided in the sheet metal alignment groove. The upper sheet metal part can be matched and placed into the sheet metal alignment groove. The depth of the sheet metal alignment groove is greater than the thickness of the upper sheet metal part, and the connecting post fixed on the upper sheet metal part can be matched and inserted into the connecting post through holes. A top pressing notch is provided on one side of the alignment groove of the sheet metal part, and a spring pressing mechanism is provided at the top pressing notch, which can elastically press the upper sheet metal part horizontally inward or outward along the vertical direction of this groove side.

2. The fixture according to claim 1, characterized in that: The spring clamping mechanism includes a pressure block, a top plate, a push rod, a guide ring, and a push rod driving mechanism. When the pressure block presses inward, the highest line of its pressing surface does not exceed the upper plane of the upper sheet metal part. The pressure block and the base are slidably connected along the direction of movement of the pressure block through a keyway structure. The pressure block and the top plate are slidably connected along the direction of movement of the pressure block through at least one set of guide rods and guide holes. A compression spring is sleeved on the guide rod between the pressure block and the top plate. One end of the guide rod is fixedly connected to either the pressure block or the top plate, and the other end is provided with an axial limiting structure, so that when the compression spring is in the open state, the continued outward movement of the top plate can pull the pressure block outward. The top plate is fixedly connected to the top rod, and the guide ring is sleeved on the outside of the top rod so that the top rod can slide along the direction of movement of the pressure block. The guide ring is fixedly connected to the base. The push rod drive mechanism drives the push rod forward or backward, thereby driving the pressure block to elastically press the upper sheet metal part in the sheet metal part alignment groove or to disengage it outward; when the pressure block is pressing the upper sheet metal part inward, the compression spring is in an elastic compression state due to the pressure of the pressure blocks and the top plate on both sides.

3. The fixture according to claim 2, characterized in that: The push rod drive mechanism is a crank-connecting rod mechanism, including a crank and a connecting rod. The crank is hinged to a crank seat, the crank seat is fixedly connected to the base, the crank is hinged to the connecting rod, and the connecting rod is hinged to the push rod. The crank extends outward at the end connected to the connecting rod to form an operating handle. Moving the operating handle forward or backward will drive the push rod forward or backward.

4. The fixture according to any one of claims 1 to 3, characterized in that: After the upper sheet metal part and the display panel are matched and placed in the sheet metal part alignment groove, the upper surface of the display panel is higher than the upper edge of the sheet metal part alignment groove. At least one movable stop is provided on the outer edge of the sheet metal part alignment groove on the same side as the spring pressing mechanism. The connection between the movable stop and the base is a fixed connection that can be adjusted inward and outward along the vertical direction of the edge. After the upper sheet metal part and the display panel are matched and placed in the sheet metal part alignment groove, the movable stop on the side can be adjusted to move inward to the edge of the edge, press against the display panel, and then be fixedly connected to the base, so that the display panel can be accurately and stably aligned with the upper sheet metal part.

5. The fixture according to claim 4, characterized in that... The movable stop and the base are fixedly connected in an adjustable manner along the vertical direction of the edge, and the movable stop and the base are connected by at least two sets of bolt and screw hole structures. Each set of bolt and screw hole structures is as follows: the base is provided with a screw hole at the matching position, the movable stop is provided with an oblong hole, the axis of the oblong hole along its length is perpendicular to the side, and the bolt passes through the oblong hole and is threadedly connected to the base through the screw hole.

6. The fixture according to claim 5, characterized in that: At least one movable stop is also provided on the outer edge of one of the adjacent sides of the sheet metal part alignment groove and the side on which the spring clamping mechanism is located. The connection between the movable stop and the base is a fixed connection that can be adjusted inward and outward along the vertical direction of the side. After the upper sheet metal part and the display panel are matched and placed in the sheet metal part alignment groove, the movable stop on the side can be adjusted to move inward to the edge of the side to hold the display panel in place before being fixedly connected to the base.

7. The fixture according to claim 6, characterized in that: At least one fixed stop is provided on the outer edge of each of the other two sides of the alignment groove of the sheet metal part. The fixed stop is fixedly connected to the base, and the inner side of the fixed stop is flush with the side of the alignment groove of the sheet metal part.

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