Metal fastener stamping and drilling precision positioning tool

Abstract

The utility model discloses a metal fastener stamping drilling precision positioning frock, including fixed clamping seat and mobile clamping seat, the side surface of fixed clamping seat is detachably installed with drive assembly through bolt, the end of drive assembly is installed with mobile clamping seat, and the opposite side of fixed clamping seat and mobile clamping seat all is equipped with positioning clamping groove, and the side surface of mobile clamping seat is equipped with the drilling of through positioning clamping groove, the upper surface of mobile clamping seat is welded with fixed guide sleeve, the upper surface of fixed clamping seat is equipped with the groove body. In the utility model, the entrance caliber of horn mouth shape guide sleeve is bigger than the clamping hole, forms the guide channel of " big entrance, broad tolerance", when manual clamping, even if the fastener such as pin shaft, bolt exists with the clamping hole axis deviation, still can through the inclined inner wall of horn mouth guide pin shaft, bolt etc. fastener to the clamping hole center gather, need not repeatedly adjust the alignment position, greatly shorten single clamping time, improve processing efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of metal fastener processing equipment, specifically to a precision positioning fixture for metal fastener punching and drilling. Background Technology

[0002] In modern manufacturing, metal fasteners are core components connecting various mechanical structures. Their processing accuracy directly determines the assembly stability, operational safety, and service life of downstream equipment. Among them, stamping and drilling are key processes in the production of metal fasteners. The stamping process achieves the initial shape of the fastener, while the drilling process completes the processing of functional holes such as positioning holes and assembly holes. Precision positioning fixtures are the core support connecting the two processes and ensuring processing accuracy. Their technical level directly restricts the production efficiency and product qualification rate of fasteners.

[0003] For small-diameter fasteners (such as pins and bolts), the positioning holes of traditional tooling are mostly straight holes. Manual clamping requires the fastener to be precisely aligned with the hole opening. If there is any misalignment, it will cause jamming, prolong the clamping time, and thus reduce the overall processing efficiency.

[0004] There are currently no effective solutions to the problems in the relevant technologies. Utility Model Content

[0005] (a) Technical problems to be solved To address the issues raised in the appeal, this utility model provides a precision positioning tooling for stamping and drilling of metal fasteners, thereby resolving the problems mentioned in the background art.

[0006] (II) Technical Solution To address the aforementioned problems, the specific technical solution adopted by this utility model is as follows: A precision positioning fixture for punching and drilling metal fasteners includes a fixed clamp and a movable clamp. A drive assembly is detachably mounted on the side surface of the fixed clamp via bolts. The movable clamp is mounted on the end of the drive assembly. Positioning and clamping grooves are formed on the opposite sides of both the fixed clamp and the movable clamp. A drilled hole is formed on the side surface of the movable clamp through the positioning and clamping groove. A fixed guide sleeve is welded to the upper surface of the movable clamp. A groove is formed on the upper surface of the fixed clamp, and a movable rod is slidably connected inside the groove. A damping spring is provided on one side of the movable rod, and a movable guide sleeve is installed on the other end of the movable rod.

[0007] Furthermore, both the fixed guide sleeve and the movable guide sleeve have a semi-flared structure, and the fixed guide sleeve and the movable guide sleeve are spliced ​​together to form a complete flared structure guide sleeve.

[0008] Furthermore, the drive component is an electric cylinder.

[0009] Furthermore, the lower surface of the movable clamp is threaded with an adjustable support bolt.

[0010] Furthermore, a polyurethane cushioning pad is adhered to the inside of the positioning clamping groove, and the surface of the polyurethane cushioning pad is provided with anti-slip texture.

[0011] Furthermore, both the fixed guide sleeve and the movable guide sleeve are made of brass.

[0012] (III) Beneficial Effects Compared with the prior art, this utility model provides a precision positioning fixture for stamping and drilling of metal fasteners, which has the following advantages: In this invention, the inlet port diameter of the flared guide sleeve is larger than that of the clamping hole, forming a "large inlet, error-tolerant" guide channel. During manual clamping, even if there is a misalignment between the pin, bolt or other fastener and the axis of the clamping hole, the pin, bolt or other fastener can still be guided to converge toward the center of the clamping hole through the inclined inner wall of the flared opening, without the need to repeatedly adjust the alignment position, which greatly shortens the single clamping time and improves processing efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a metal fastener stamping and drilling precision positioning tool proposed in this utility model; Figure 2 This is a schematic diagram of the internal structure of the movable clamp of this utility model; Figure 3 This is a schematic diagram of the connection structure of the fixed clamp of this utility model.

[0015] In the picture: 1. Fixed clamp; 2. Movable clamp; 3. Drive assembly; 4. Fixed guide sleeve; 5. Movable guide sleeve; 6. Movable rod; 7. Damping spring; 8. Positioning clamping groove; 9. Drill hole; 10. Adjustable support bolt. Detailed Implementation

[0016] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0017] According to an embodiment of the present invention, a precision positioning fixture for stamping and drilling of metal fasteners is provided.

[0018] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-3 As shown, a metal fastener punching and drilling precision positioning fixture according to an embodiment of the present utility model includes a fixed clamp 1 and a movable clamp 2. A drive assembly 3 is detachably installed on the side surface of the fixed clamp 1 by bolts. The movable clamp 2 is installed at the end of the drive assembly 3. Positioning clamping grooves 8 are opened on the opposite sides of the fixed clamp 1 and the movable clamp 2. A drill hole 9 is opened through the positioning clamping groove 8 on the side surface of the movable clamp 2. A fixed guide sleeve 4 is welded on the upper surface of the movable clamp 2. A groove is opened on the upper surface of the fixed clamp 1. A movable rod 6 is slidably connected inside the groove. A damping spring 7 is provided on one side of the movable rod 6. A movable guide sleeve 5 is installed on the other end of the movable rod 6.

[0019] In one embodiment, the inlet port diameter of the flared guide sleeve is larger than that of the clamping hole, forming a "large inlet, error-tolerant" guide channel. During manual clamping, even if there is a misalignment between the pin, bolt or other fastener and the axis of the clamping hole, the pin, bolt or other fastener can still be guided to converge toward the center of the clamping hole through the inclined inner wall of the flared opening, without the need to repeatedly adjust the alignment position, which greatly shortens the single clamping time and improves processing efficiency.

[0020] Specifically, both the fixed guide sleeve 4 and the movable guide sleeve 5 have a semi-flared structure, and the fixed guide sleeve 4 and the movable guide sleeve 5 are spliced ​​together to form a complete flared structure guide sleeve.

[0021] In one embodiment, the design is adapted to the guiding requirements of fasteners of different lengths and specifications, and can guide fasteners of different specifications.

[0022] Specifically, drive component 3 is an electric cylinder.

[0023] In one embodiment, the electric cylinder 3 provides the power source for the movement of the movable clamp 2.

[0024] Specifically, the lower surface of the movable clamp 2 is threaded with an adjustable support bolt 10.

[0025] In one embodiment, fasteners such as pins and bolts are supported to prevent them from falling out of the clamping holes.

[0026] Specifically, the inside of the positioning clamping groove 8 is covered with a polyurethane cushioning pad, and the surface of the polyurethane cushioning pad is provided with anti-slip texture.

[0027] In one embodiment, a flexible protection can be formed on the surface of the fastener during clamping, avoiding surface scratches caused by direct contact between the metal clamp and the fastener.

[0028] Specifically, both the fixed guide sleeve 4 and the movable guide sleeve 5 are made of brass.

[0029] In one embodiment, brass material has moderate hardness, a certain degree of wear resistance, and is not easily damaged.

[0030] Working principle: When the fastener is manually placed into the guide sleeve inlet, even if there is a misalignment between the fastener axis and the clamping hole axis, the inclined inner wall of the flared mouth will generate a radial guiding force on the fastener, guiding the fastener to slide into the positioning clamping groove 8 along the gradual transition hole. Then, the adjustable support bolt 10 supports the fastener, causing the fastener to stay in the clamping groove. After that, the electric cylinder 3 can be activated to push the moving clamp 2 to fix and clamp the fastener. There is no need to repeatedly adjust the alignment position, which greatly reduces the single clamping time and improves work efficiency. Then, the drill bit of the drilling machine drills the fastener through the drill hole 9.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precision positioning fixture for stamping and drilling of metal fasteners, comprising a fixed clamp (1) and a movable clamp (2), characterized in that, The side surface of the fixed clamp (1) is detachably mounted with a drive assembly (3) by bolts. The end of the drive assembly (3) is mounted with a movable clamp (2). The opposite sides of the fixed clamp (1) and the movable clamp (2) are provided with positioning clamping grooves (8). The side surface of the movable clamp (2) is provided with a drill hole (9) through the positioning clamping groove (8). The upper surface of the movable clamp (2) is welded with a fixed guide sleeve (4). The upper surface of the fixed clamp (1) is provided with a groove. The inside of the groove is slidably connected with a movable rod (6). A damping spring (7) is provided on one side of the movable rod (6). The other end of the movable rod (6) is provided with a movable guide sleeve (5).

2. The precision positioning fixture for stamping and drilling of metal fasteners according to claim 1, characterized in that, Both the fixed guide sleeve (4) and the movable guide sleeve (5) are semi-flared structures. The fixed guide sleeve (4) and the movable guide sleeve (5) are spliced ​​together to form a complete flared structure guide sleeve.

3. The precision positioning fixture for stamping and drilling of metal fasteners according to claim 2, characterized in that, The drive component (3) is an electric cylinder.

4. The precision positioning fixture for stamping and drilling of metal fasteners according to claim 3, characterized in that, The lower surface of the movable clamp (2) is threaded with an adjustable support bolt (10).

5. The precision positioning fixture for stamping and drilling of metal fasteners according to claim 4, characterized in that, The positioning clamping groove (8) is internally adhered with a polyurethane buffer pad, and the surface of the polyurethane buffer pad is provided with anti-slip texture.

6. The precision positioning fixture for stamping and drilling of metal fasteners according to claim 5, characterized in that, Both the fixed guide sleeve (4) and the movable guide sleeve (5) are made of brass.

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