Air suction type adjustable positioning core

Abstract

The utility model discloses an air suction type adjustable positioning core. The device comprises a front-end positioning core, a twist needle ejector block, a spring breathable partition plate, a compression spring, a rear-end positioning core and an air pipe joint seat, a front end positioning core is arranged at the front end of the rear end positioning core; a vertically-through cavity is formed in the rear end positioning core. The cavity is respectively communicated with the front end positioning core and the air pipe joint seat; the twist needle ejector block, the spring ventilation partition plate and the compression spring are sequentially arranged in the cavity from top to bottom. The front-end positioning core is located at the upper end of the twist needle ejector block. According to the utility model, it is ensured that the cable needle placed in the positioning core is kept vertical, so that the length of the cable needle after crimping is kept consistent, and the dimensional precision of the cable needle after crimping can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a suction type adjustable positioning core. BACKGROUND

[0002] The unique structure and excellent performance of the twist pin connector make it widely used in the fields of aerospace, electronic communication and the like.

[0003] The core contact piece of the twist pin connector is a twist pin assembly, and the twist pin assembly is formed by crimping a pin body, a wire and a twist pin. When the pin body and the twist pin are crimped, the lengths of the pin body and the twist pin are different, and the positioning core in the crimping pliers has a fixed size. Therefore, the positioning core needs to be replaced when different lengths of twist pin assemblies are crimped. In the crimping process, only the fat points of the twist pins contact the positioning core, and the twist pins placed in the positioning core are not vertical, but are placed obliquely. The twist pins placed obliquely are automatically righted in the crimping process, and part of the twist pins is moved upward in the righting process. As a result, the lengths of the twist pins after crimping are different, the lengths of the twist pins leaked in the twist pin assembly after crimping are inconsistent, the positions of the fat points of the twist pins after assembly are inconsistent, the plug-in and plug-out performance of the connector is seriously affected, and the use performance of the twist pin connector is affected.

[0004] Therefore, it is necessary to develop a positioning core capable of improving the size accuracy of the twist pins after crimping. SUMMARY

[0005] The utility model discloses a kind of suction type adjustable positioning cores, guarantee the twist pin placed in the positioning core keeps vertical, so that the length of the twist pin after crimping keeps consistent, can improve the size accuracy of the twist pin after crimping.

[0006] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: a suction type adjustable positioning core, comprising a front-end positioning core, a twist pin top block, a compression spring, a rear-end positioning core and a tracheal joint seat.

[0007] The rear-end positioning core is provided with the front-end positioning core at the front end and the tracheal joint seat at the tail end.

[0008] The rear-end positioning core is provided with a cavity passing through from top to bottom; the cavity is in communication with the front-end positioning core and the tracheal joint seat respectively.

[0009] The twist pin top block and the compression spring are both located in the cavity; the twist pin top block is located above the compression spring.

[0010] The front-end positioning core is located at the upper end of the twist pin top block.

[0011] In the above technical scheme, the suction type adjustable positioning core of the utility model further comprises a spring air-permeable partition plate; the spring air-permeable partition plate is located between the top end of the compression spring and the twist pin top block.

[0012] In the technical scheme, the rear positioning core is in a cylindrical shape; and an external thread is arranged on the outer wall of the rear positioning core.

[0013] In the technical scheme, the cavity comprises a first cavity structure, a second cavity structure and a third cavity structure; and the first cavity structure, the second cavity structure and the third cavity structure are arranged in sequence from top to bottom.

[0014] The inner diameter of the second cavity structure is greater than the inner diameter of the first cavity structure and the inner diameter of the third cavity structure.

[0015] The front positioning core is threadedly connected with the first cavity structure.

[0016] The twist drill top block, the spring air-permeable partition plate and the compression spring are all located in the second cavity structure.

[0017] In the technical scheme, the locking screw passes through the side wall of the rear positioning core and fixes the twist drill top block in the first cavity structure.

[0018] In the technical scheme, the twist drill top block comprises a first top block structure, a second top block structure and a top block through hole.

[0019] The first top block structure is located at the upper end of the middle part of the second top block structure.

[0020] The top block through hole is located on the second top block structure.

[0021] In the technical scheme, the spring air-permeable partition plate comprises a partition plate body and a partition plate air-permeable hole; and the partition plate air-permeable hole is arranged on the partition plate body.

[0022] In the technical scheme, a positioning hole is arranged in the front positioning core.

[0023] The positioning hole is located at the upper end of the first top block structure and communicates with the cavity.

[0024] In the technical scheme, the diameter of the positioning hole is smaller than the outer diameter of the first top block structure and greater than the diameter of the twist drill head.

[0025] The utility model has the advantages of:

[0026] (1) The utility model adjusts the position of the twist drill top block through the locking screw, so that the twist drill top block can be adjusted up and down, thereby adjusting the length of the compression joint of the twist drill and the needle body, realizing the compression joint of twist drills of different lengths, improving the applicability of the utility model, reducing the cost and saving time and labor; solving the problem that the positioning core in the prior art is of a fixed size, a positioning core of one size can only compress a positioning core of one size, and different lengths of twist drill assemblies need to be replaced with different positioning cores, which is high in cost and time-consuming;

[0027] (2) The utility model discloses a positioning core's bottom from the air source ceaseless suction, make the twisted wire needle always receive the suction of downward, guarantee the twisted wire needle that places in the positioning core keeps vertical and the head of twisted wire needle automatic top the twisted wire needle top block, make the length of twisted wire needle after crimping keep consistent, improve the size accuracy of twisted wire needle after crimping, make the fat point position of twisted wire needle after assembly consistent, improve the connector plugging and conductivity of twisted wire needle, the prior art in the crimping process, because only the fat point of twisted wire needle contacts the positioning core, the twisted wire needle that places in the positioning core is not vertical, the twisted wire needle that inclines places will automatic back in the crimping process, will have part twisted wire needle to go up in the back process, make the twisted wire needle after crimping not be of different lengths, lead to the length of twisted wire needle that leaks in the twisted wire needle assembly after crimping is not consistent, make the fat point position of twisted wire needle after assembly inconsistent, seriously influence the connector plugging and conductivity, influence the service performance of twisted wire needle connector. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is the sectional view of the utility model.

[0029] Figure 2 It is the three-dimensional structure schematic diagram of the utility model.

[0030] Figure 3 It is the three-dimensional structure schematic diagram of the twisted wire needle top block in the utility model.

[0031] Figure 4 It is the three-dimensional structure schematic diagram of the spring air-permeable partition plate in the utility model.

[0032] Figure 5 It is the three-dimensional structure schematic diagram of the front end positioning core in the utility model.

[0033] In the drawing, 1 is the front end positioning core, 1.1 is the positioning hole, 2 is the twisted wire needle top block, 2.1 is the first top block structure, 2.2 is the second top block structure, 2.3 is the top block through-hole, 2.4 is the locking screw, 3 is the spring air-permeable partition plate, 3.1 is the partition plate body, 3.2 is the partition plate air-permeable hole, 4 is the compression spring, 5 is the rear end positioning core, 5.1 is the cavity, 5.11 is the first cavity structure, 5.12 is the second cavity structure, 5.13 is the third cavity structure, 5.2 is the external thread, 6 is the air pipe joint seat, 7 is the twisted wire needle, and 8 is the pneumatic crimping forceps four-way clamping jaw. DETAILED DESCRIPTION

[0034] The implementation of the utility model will be described in detail below in conjunction with the drawings, but they do not constitute the limitation of the utility model, and are only examples. At the same time, through the description, the advantages of the utility model are clearer and easier to understand.

[0035] Referring to the attached drawings, an adjustable positioning core for inhalation includes a front positioning core 1, a twisted needle top block 2, a compression spring 4, a rear positioning core 5, and an air tube connector seat 6.

[0036] The rear positioning core 5 is set at the front end, and the front positioning core 1 is set at the front end; the tail end is set with the air pipe connector seat 6.

[0037] The rear positioning core 5 has a through cavity 5.1; the cavity 5.1 is connected to the front positioning core 1 and the air pipe connector seat 6 respectively; the bottom of the air-suction adjustable positioning core of this utility model is connected to the air pipe through the air pipe connector seat 6, and the air pipe continuously sucks out air, so that the air-suction adjustable positioning core of this utility model forms a negative pressure inside. During the crimping process, the twisted needle is always subjected to a downward suction force, thereby ensuring that the twisted needle will not move upward during the crimping process, so that the size of the twisted needle remains consistent after crimping.

[0038] Both the twisted needle top block 2 and the compression spring 4 are located inside the cavity 5.1, with the twisted needle top block 2 positioned above the compression spring 4. This improves the applicability of the present invention, making it suitable for crimping twisted needles of various sizes. When dealing with twisted needles of different lengths, it is only necessary to adjust the position of the twisted needle top block 2 up and down and lock the twisted needle top block 2 with screws to achieve crimping of twisted needles of different sizes.

[0039] The front positioning core 1 is located at the upper end of the twisted needle top block 2 (e.g.) Figure 1 , Figure 2 (As shown).

[0040] Furthermore, the air-inhaling adjustable positioning core also includes a spring-ventilated partition 3; the spring-ventilated partition 3 is located between the top of the compression spring 4 and the twisted needle top block 2; the spring-ventilated partition 3 is precisely matched with the front positioning core, so that the ventilated partition can only move up and down, thus ensuring the accuracy of the up and down adjustment of the twisted needle top block.

[0041] The spring-loaded ventilated partition 3 includes a partition body 3.1 and partition vent holes 3.2; the partition vent holes 3.2 are disposed on the partition body 3.1 (e.g., Figure 4 As shown), the vent hole 3.2 of the partition is used to allow gas to pass through. The gas source continuously draws air from the bottom of the positioning core, so that the twisted needle is always subjected to downward suction, ensuring that the twisted needle placed in the positioning core remains vertical and that the head of the twisted needle automatically presses against the top block of the twisted needle.

[0042] Furthermore, the rear positioning core 5 is cylindrical; an external thread 5.2 is provided on the outer wall of the rear positioning core 5, and this utility model is connected to the crimping pliers through the external thread 5.2 of the rear positioning core 5 (e.g., Figure 1 , Figure 2 (As shown).

[0043] Further, the cavity 5.1 comprises a first cavity structure 5.11, a second cavity structure 5.12 and a third cavity structure 5.13; the first cavity structure 5.11, the second cavity structure 5.12 and the third cavity structure 5.13 are sequentially arranged from top to bottom;

[0044] The inner diameter of the second cavity structure 5.12 is greater than the inner diameter of the first cavity structure 5.11 and greater than the inner diameter of the third cavity structure 5.13;

[0045] The front end positioning core 1 is threadedly connected with the first cavity structure 5.11;

[0046] The twist drill top block 2, the spring air permeable partition plate 3 and the compression spring 4 are all located in the second cavity structure 5.12 (as shown in Figure 1 When the length of the compression of the twist drill and the needle body is adjusted, the locking screw 2.4 is loosened, the twist drill is pushed down to the twist drill top block 2, so that the twist drill top block 2 moves downward, at this time the compression spring 4 is compressed downward, and vice versa, the twist drill is pulled up, the compression spring 4 is elongated, and the twist drill top block 2 moves upward, so that the twist drill top block and the spring air permeable partition plate are movable upward and downward, and after the length of the compression of the twist drill and the needle body is adjusted, the twist drill top block 2 is locked in the cavity 5.1 of the rear end positioning core 5 by the locking screw 2.4.

[0047] Further, the locking screw 2.4 passes through the side wall of the rear end positioning core 5 and fixes the twist drill top block 2 in the first cavity structure 5.11 (as shown in Figure 1 The position of the twist drill top block 2 is adjusted by the locking screw 2.4, so that the twist drill top block is adjustable upward and downward, thereby adjusting the length of the compression of the twist drill and the needle body, realizing the compression of twist drills of different lengths, improving the applicability of the utility model, and saving cost and time; the problem that the positioning core in the prior art is of fixed size, the positioning core of one size can only compress one size of the positioning core, and the positioning core needs to be replaced when compressing twist drill assemblies of different lengths, which is high in cost and time-consuming.

[0048] Further, the twist drill top block 2 comprises a first top block structure 2.1, a second top block structure 2.2 and a top block through hole 2.3;

[0049] The first top block structure 2.1 is located at the upper end of the middle part of the second top block structure 2.2; the first top block structure 2.1 is used for pressing against the head of the twist drill, realizing the compression of the twist drill and the needle body;

[0050] The top block through hole 2.3 is located on the second top block structure 2.2 (as shown in Figure 3The top block through hole 2.3 is used for passing gas, and the gas source is continuously sucked from the bottom of the positioning core, so that the twist drill is always subjected to downward suction, and the twist drill placed in the positioning core is kept vertical, and the head of the twist drill automatically abuts against the twist drill top block, so that the length of the crimped twist drill is kept consistent.

[0051] Further, the top block through hole 2.3 has a plurality of holes;

[0052] The partition plate air permeable hole 3.2 has a plurality of holes.

[0053] Further, the front end positioning core 1 is provided with a positioning hole 1.1; the positioning hole 1.1 is used for fixing the twist drill;

[0054] The positioning hole 1.1 is located at the upper end of the first top block structure 2.1 and is in communication with the cavity 5.1 (as shown in the figure), and the gas source is continuously sucked from the bottom of the positioning core, so that the twist drill is always subjected to downward suction, and the twist drill placed in the positioning core is kept vertical, and the head of the twist drill automatically abuts against the twist drill top block. Figure 1 、 Figure 5 Further, the positioning hole 1.1 has a hole diameter slightly smaller than the outer diameter of the first top block structure 2.1 and larger than the diameter of the twist drill head; the positioning hole 1.1 is slightly smaller than the outer diameter of 2.1 and larger than the diameter of the twist drill head, so that negative pressure can be generated and downward suction can be generated, or when the height is adjusted, the twist drill top block 2 moves downward as a whole, so that the twist drill head exceeds the bottom of the front end positioning core 1, negative pressure can be generated, and downward suction can be generated.

[0055] Further, the positioning hole 1.1 has a hole diameter slightly smaller than the outer diameter of the first top block structure 2.1 and larger than the diameter of the twist drill head; the positioning hole 1.1 is slightly smaller than the outer diameter of 2.1 and larger than the diameter of the twist drill head, so that negative pressure can be generated and downward suction can be generated, or when the height is adjusted, the twist drill top block 2 moves downward as a whole, so that the twist drill head exceeds the bottom of the front end positioning core 1, negative pressure can be generated, and downward suction can be generated.

[0056] The working process of the air suction type adjustable positioning core is as follows:

[0057] First, the length of the crimping of the twist drill and the needle body is determined, that is, the length of the fat point of the twist drill needs to be leaked, then the locking screw 2.4 is loosened, the twist drill top block 2 is pushed down by the twist drill, at this time the compression spring 4 is compressed downward, and vice versa, the twist drill is pulled upward, the compression spring 4 is elongated, and the twist drill top block 2 moves upward, so that the up-and-down movement of the twist drill top block 2 and the spring air permeable partition plate 3 can be realized, and after the position of the twist drill is adjusted, the twist drill top block 2 is locked by the locking screw 2.4;

[0058] The gas source connected with the gas pipe joint seat 6 is opened, the fat point end of the twist drill is placed in the positioning hole 1.1 of the front end positioning core 1, the twist drill is subjected to suction and the head of the twist drill automatically abuts against the twist drill top block 2, at this time the needle body is sleeved on the twist drill, and the crimping of the twist drill and the needle body is completed by starting the crimping pliers.

[0059] The other parts not described belong to the prior art.

Claims

1. An aspirating adjustable positioning core, characterized by: The front end positioning core (1), the twisted needle top block (2), the compression spring (4), the rear end positioning core (5) and the trachea joint seat (6) are included. The front end positioning core (1) is arranged at the front end of the rear end positioning core (5), and the trachea joint seat (6) is arranged at the tail end of the rear end positioning core (5). The rear end positioning core (5) is internally provided with an up-and-down through cavity (5.1); the cavity (5.1) is in communication with the front end positioning core (1) and the trachea joint seat (6) respectively. The twisted needle top block (2) and the compression spring (4) are both located in the cavity (5.1); the twisted needle top block (2) is located above the compression spring (4). The front end positioning core (1) is located at the upper end of the twisted needle top block (2).

2. The aspirated adjustable positioning core of claim 1, wherein: The spring air-permeable partition plate (3) is further included; the spring air-permeable partition plate (3) is located between the top end of the compression spring (4) and the twisted needle top block (2).

3. The aspirated adjustable positioning core of claim 2, wherein: The rear end positioning core (5) is in a cylindrical shape; an external thread (5.2) is arranged on the outer wall of the rear end positioning core (5).

4. The aspirated adjustable positioning core of claim 3, wherein: The cavity (5.1) includes a first cavity structure (5.11), a second cavity structure (5.12) and a third cavity structure (5.13); the first cavity structure (5.11), the second cavity structure (5.12) and the third cavity structure (5.13) are sequentially arranged from top to bottom; The inner diameter of the second cavity structure (5.12) is greater than the inner diameter of the first cavity structure (5.11) and the inner diameter of the third cavity structure (5.13); The front end positioning core (1) is in threaded connection with the first cavity structure (5.11); The twisted needle top block (2), the spring air-permeable partition plate (3) and the compression spring (4) are all located in the second cavity structure (5.12).

5. The aspirated adjustable positioning core of claim 4, wherein: The locking screw (2.4) penetrates through the side wall of the rear end positioning core (5) and fixes the twisted needle top block (2) in the first cavity structure (5.11).

6. The aspirated adjustable positioning core of claim 5, wherein: The twisted needle top block (2) includes a first top block structure (2.1), a second top block structure (2.2) and a top block through hole (2.3); The first top block structure (2.1) is located at the upper end of the middle part of the second top block structure (2.2); The top block through hole (2.3) is located on the second top block structure (2.2).

7. The aspirated adjustable positioning core of claim 6, wherein: The spring air-permeable partition plate (3) includes a partition plate body (3.1) and a partition plate air-permeable hole (3.2); The partition plate air-permeable hole (3.2) is arranged on the partition plate body (3.1).

8. The aspirated adjustable positioning core of claim 7, wherein: The front end positioning core (1) is internally provided with a positioning hole (1.1); The positioning hole (1.1) is located at the upper end of the first top block structure (2.1) and is in communication with the cavity (5.1).

9. The aspirated adjustable positioning core of claim 8, wherein: The hole diameter of the positioning hole (1.1) is smaller than the outer diameter of the first top block structure (2.1) and greater than the diameter of the twisted needle head.

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