Positioning jig for fin assembly

Abstract

A positioning jig for fin assembly comprises a base plate, a lower block is installed on one side of the base plate, a pair of guide transverse rods are arranged on the lower block, a movable outer plate is movably arranged on the guide transverse rods, an adjusting lead screw is connected to the movable outer plate in a threaded mode, a rotating cap is arranged at the outer side end of the adjusting lead screw, and the inner side end of the adjusting lead screw is rotationally arranged on the lower block. And a plurality of limiting plates are arranged on the inner side of the movable outer plate, grooves are formed in the inner side ends of the limiting plates in an opening mode, the positions of the limiting plates can be adjusted through adjusting lead screws, and the application range is expanded through the mode. Mounting side plates are mounted at the two ends of the other side of the base plate, rotating convex plates are arranged at the outer side ends of the mounting side plates, spline shafts are rotationally arranged at the outer side ends of the rotating convex plates, the spline shafts are sleeved with a plurality of connecting arms, limiting insertion plates are arranged at the inner side ends of the connecting arms, and rectangular insertion openings are formed in the inner side ends of the limiting insertion plates in an opening mode; according to the utility model, the insertion operation of the fins is convenient, and the application range is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of condenser tube processing, in particular to a positioning fixture for fin assembly. Background Art

[0002] The condenser is composed of a bent condenser tube and fins sleeved on the condenser tube. When sleeved, the operator inserts the fins into the limit grooves of the sleeve device, and then sleeves multiple fins on the condenser tube by pushing the condenser tube. After the sleeve is completed, the condenser is taken out. When placing the fins, in order to avoid deformation of the fins during the sleeve process, the fins are clamped in the grooves. However, this method will bring many changes to the insertion of the fins. This is because when the subsequent fins are inserted after the fins are inserted, the spacing between the fins is small, which affects the insertion of the fins. At the same time, different types of fins have different lengths, and the currently used sleeve device has a narrow range of application. Utility Model Content

[0003] The utility model provides a positioning fixture for fin assembly, which solves the shortcomings of the prior art, facilitates the clamping operation of the fin, expands the scope of application, and has strong practicality.

[0004] In order to achieve the purpose of this utility model, the following technologies are proposed:

[0005] A positioning fixture for fin assembly includes a base plate, a lower block is installed on one side of the base plate, a pair of guide cross bars are provided on the lower block, a movable outer plate is movably provided on the guide cross bars, an adjusting screw is screwed on the movable outer plate, a rotating cap is provided at the outer end of the adjusting screw, the inner end of the adjusting screw is rotatably provided on the lower block, a plurality of limit plates are provided on the inner side of the movable outer plate, a groove is formed in the inner end of the limit plate in an open manner, and the adjusting screw can adjust the position of the limit plate, thereby expanding the scope of application. The two ends of the other side of the base plate are equipped with mounting side plates, and the outer end of the mounting side plates is provided with a rotating convex plate, and the outer end of the rotating convex plate is rotatably provided with a spline shaft, and a plurality of connecting arms are sleeved on the spline shaft, and the inner end of the connecting arm is provided with a limit plug plate, and the inner end of the limit plug plate is open to form a rectangular socket, and a connecting rod is provided at the upper end of the limit plug plate, and a mounting seat is provided between two adjacent connecting arms, and a guide sleeve is installed on the upper end of the mounting seat, and the mounting seat is installed on the spline shaft, and a movable seat is movably provided in the guide sleeve, and a connecting plate is hinged on the upper end of the movable seat, and a V-shaped structure is formed between the connecting plates, and the other end of the connecting plate is connected to the connecting rod, and a screw block is hinged on the connecting plate, and a screw rod is provided between the screw blocks, and the threads at both ends of the screw rod are rotated in opposite directions, and the two adjacent screw rods are connected together through a coupling, and an inner extending convex plate is installed at the outer end of the guide sleeve, and the screw rod is rotatably arranged on the inner extending convex plate. The limit plug plate and the rectangular socket thereon can limit the other end of the fin to prevent the fin from being deformed during the installation process. The limit plug plate is rotated and set on the spline shaft. When performing the insertion operation, the operator can rotate the limit plug plate so that the rectangular socket faces upward, thereby facilitating the insertion of the fin. In addition, during the insertion, the spacing between the limit plug plates can be adjusted by rotating the screw rod, thereby facilitating the insertion operation. After the insertion, the fin spacing can be adjusted again so that the other end of the fin is inserted into the groove.

[0006] Furthermore, the movable outer plate is provided with a plurality of pairs of guide holes, the length direction of the guide holes is parallel to the length direction of the movable outer plate, and a pair of connecting screws are provided at the outer end of the limit plate, and the connecting screws are passed through the guide holes. Through the provided connecting screws and guide holes, the spacing between the limit plates can be adjusted conveniently to expand the scope of application.

[0007] Furthermore, a rotating cap is provided at the outer end of the screw rod located on the outside to facilitate the rotation of the screw rod.

[0008] Furthermore, a swing plate is provided at the outer end of the spline shaft, a sliding sleeve is provided on the swing plate, a limit strip is provided in the sliding sleeve, and the limit strip is installed on the mounting side plate. The limit strip and the sliding sleeve are used to conveniently lock the rotation of the limit plug plate.

[0009] The advantages of the above technical solution are:

[0010] The utility model facilitates the operation of inserting and installing the fins and expands the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0012] Figure 1 A three-dimensional structural diagram of one embodiment is shown.

[0013] Figure 2 An enlarged view of A is shown. DETAILED DESCRIPTION

[0014] like Figure 1~Figure 2 As shown, a positioning fixture for fin assembly includes a base plate 1, a lower block 2 is installed on one side of the base plate 1, a pair of guide cross bars 20 are provided on the lower block 2, a movable outer plate 23 is movably provided on the guide cross bar 20, an adjusting screw 21 is screwed on the movable outer plate 23, a rotating cap 22 is provided at the outer end of the adjusting screw 21, the inner end of the adjusting screw 21 is rotatably provided on the lower block 2, a plurality of limiting plates 26 are provided on the inner side of the movable outer plate 23, a groove 27 is formed in an open manner at the inner end of the limiting plate 26, a plurality of pairs of guide holes 24 are provided on the movable outer plate 23, the length direction of the guide holes 24 is parallel to the length direction of the movable outer plate 23, a pair of connecting screws 25 are provided at the outer end of the limiting plate 26, and the connecting screws 25 are passed through the guide holes 24.

[0015] The other two ends of the substrate 1 are provided with mounting side plates 3, the outer ends of the mounting side plates 3 are provided with rotating convex plates 30, the outer ends of the rotating convex plates 30 are rotatably provided with spline shafts 31, a plurality of connecting arms 35 are sleeved on the spline shaft 31, the inner ends of the connecting arms 35 are provided with limit plugs 36, the inner ends of the limit plugs 36 are openly formed with rectangular sockets 37, the upper ends of the limit plugs 36 are provided with connecting rods, and mounting seats 38 are provided between two adjacent connecting arms 35, the upper ends of the mounting seats 38 are provided with guide sleeves 39, and the mounting seats 38 are installed on the spline shaft 31, a movable seat is movably arranged in the guide sleeve 39, a connecting plate 43 is hinged on the upper end of the movable seat, a V-shaped structure is formed between the connecting plates 43, the other end of the connecting plate 43 is connected to the connecting rod, a screw block 42 is hinged on the connecting plate 43, a screw rod 41 is arranged between the screw blocks 42, a rotating cap is arranged on the outer end of the screw rod 41 located on the outside, the threads at both ends of the screw rod 41 are rotated in opposite directions, and two adjacent screw rods 41 are connected together through a coupling, an inner protruding convex plate 40 is installed on the outer end of the guide sleeve 39, and the screw rod 41 is rotatably arranged on the inner protruding convex plate 40. A swing plate 32 is arranged on the outer end of the spline shaft 31, a sliding sleeve 33 is sleeved on the swing plate 32, a limit strip 34 is arranged in the sliding sleeve 33, and the limit strip 34 is installed on the mounting side plate 3.

[0016] When operating the present embodiment, the operator first moves the sliding sleeve 33 out of the limiting sleeve 34 .

[0017] Then the operator rotates the limit plug plate 36 outward so that the opening of the rectangular socket 37 faces upward.

[0018] Then the operator rotates the screw rod 41 to adjust the distance between each pair of screw blocks 42, so as to increase the angle between the connecting plates 43 through the screw blocks 42. As the angle between the connecting plates 43 increases, the distance between two adjacent limit plug plates 36 will increase.

[0019] The operator then inserts the fins into the rectangular sockets 37 one by one.

[0020] Then the operator reduces the distance between two adjacent limit plates 36 again through the screw rod 41 .

[0021] Then the spline shaft 31 is rotated so that the rectangular socket 37 faces inwards, and the other end of the fin is inserted into the groove 27 .

[0022] Finally, the condenser tubes and fins are installed.

[0023] When adjusting the spacing of the limiting plates 26 , the connecting screws 25 are loosened first, and then the spacing of the limiting plates 26 is adjusted. After the adjustment is completed, the limiting plates 26 are locked again by the connecting screws 25 .

[0024] When adjusting the spacing between the limit plate 26 and the limit plug 36 , the operator can rotate the adjustment screw 21 to move the movable outer plate 23 inward or outward, and finally adjust the position of the limit plate 26 .

[0025] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Obviously, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and their equivalents, the utility model is also intended to include these modifications and variations.

Claims

1. A positioning fixture for fin assembly, characterized in that: The invention comprises a base plate (1), a lower block (2) is mounted on one side of the base plate (1), a pair of guide cross bars (20) is provided on the lower block (2), a movable outer plate (23) is movably provided on the guide cross bars (20), an adjusting screw rod (21) is screwed on the movable outer plate (23), a rotating cap (22) is provided on the outer end of the adjusting screw rod (21), an inner end of the adjusting screw rod (21) is rotatably provided on the lower block (2), a plurality of limiting plates (26) are provided on the inner side of the movable outer plate (23), and a groove (27) is formed in an open manner on the inner end of the limiting plate (26); The other two ends of the base plate (1) are provided with mounting side plates (3), the outer ends of the mounting side plates (3) are provided with a rotating convex plate (30), the outer ends of the rotating convex plate (30) are rotatably provided with a spline shaft (31), a plurality of connecting arms (35) are sleeved on the spline shaft (31), the inner ends of the connecting arms (35) are provided with a limiting plug plate (36), the inner ends of the limiting plug plates (36) are openly formed with a rectangular socket (37), the upper ends of the limiting plug plates (36) are provided with a connecting rod, a mounting seat (38) is provided between two adjacent connecting arms (35), and a guide sleeve (39) is installed on the upper end of the mounting seat (38). The mounting seat (38) is mounted on the spline shaft (31), and a movable seat is movably provided in the guide sleeve (39). A connecting plate (43) is hingedly connected to the upper end of the movable seat. The connecting plates (43) form a V-shaped structure. The other end of the connecting plate (43) is connected to the connecting rod. A screw block (42) is hingedly connected to the connecting plate (43). A screw rod (41) is provided between the screw blocks (42). The screw threads at both ends of the screw rod (41) are rotated in opposite directions. Two adjacent screw rods (41) are connected together through a coupling. An inner protruding convex plate (40) is installed at the outer end of the guide sleeve (39), and the screw rod (41) is rotatably provided on the inner protruding convex plate (40).

2. The fin assembly positioning jig according to claim 1, characterized in that: The movable outer plate (23) is provided with a plurality of pairs of guide holes (24), the length direction of the guide holes (24) is parallel to the length direction of the movable outer plate (23), and the outer end of the limit plate (26) is provided with a pair of connecting screws (25), and the connecting screws (25) are inserted into the guide holes (24).

3. The positioning jig for fin assembly according to claim 1, characterized in that: A rotating cap is provided at the outer end of the screw rod (41) located at the outer side.

4. The positioning jig for fin assembly according to claim 1, characterized in that: A swing plate (32) is provided at the outer end of the spline shaft (31), a sliding sleeve (33) is sleeved on the swing plate (32), a limit strip (34) is provided inside the sliding sleeve (33), and the limit strip (34) is mounted on the mounting side plate (3).

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