Hole concave combined positioning key

Abstract

The present application relates to the technical field of machining manufacturing, and discloses a hole concave combined positioning key, which comprises a positioning key body, at least one concave groove is formed in the middle of the positioning key body along the length direction, an avoiding hole is formed in the concave groove and penetrates up and down, and connecting holes are formed on both sides of the positioning key body. The positioning key is arranged between the screws at the two ends of the inlay and the screws, the concave groove is arranged to avoid the screw position in the middle of the inlay, two or more small keys are connected to form a whole, the length of the whole positioning key is increased, the whole stress of the positioning key is ensured, the effect of preventing lateral force of the positioning key is ensured, and the whole is better.

Description

Technical Field

[0001] This invention relates to the field of machining and manufacturing technology, and specifically to a perforated concave combination positioning key. Background Technology

[0002] In the current mold design process, due to the large amount of scrap, a scrap cutter is required for shearing. However, in order to save space or increase the overall strength of the scrap cutter insert, the backing of the insert is not designed during the mold design. Instead, it is positioned solely by screws. However, the screw gap is large and the stability is insufficient. Therefore, in high-speed and frequent production processes, it is often found that the scrap is not cut due to changes in the scrap cutter gap. This results in the scrap being carried into the sheet metal or remaining in the mold, which can damage the mold.

[0003] Locating keys are not commonly used in mold insert positioning. Their main function is precision positioning, preventing the inserts from widening during production and causing the sheet metal to be cut through. A possible solution is to place locating keys in the spaces between the screws of the insert for this purpose. Figure 1 As shown, 10 is the mounting base, 20 is the insert, and 1' is the positioning key. However, the distance between the screws of the insert is usually small, which results in a small length of the positioning key. If the length of the positioning key is less than 15mm, the positioning key will not be able to prevent lateral forces and will lose its positioning effect. Summary of the Invention

[0004] To address the shortcomings of the prior art, the present invention provides a perforated concave combination positioning key with a simple structure and good positioning effect.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0006] A perforated concave combination positioning key includes a positioning key body, wherein at least one concave groove is formed in the middle of the positioning key body along the length direction, and a clearance hole is formed in the concave groove, and connecting holes are formed on both sides of the positioning key body.

[0007] Furthermore, the concave groove extends through both the front and rear sides of the positioning key body, and the positioning key body is in the shape of a "U".

[0008] Furthermore, the clearance hole is racetrack shaped, and the length direction of the clearance hole is consistent with the length direction of the positioning key body.

[0009] Furthermore, there are two concave grooves, and a connecting hole is provided in the middle of the two concave grooves.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] The positioning key of the present invention is set between the screws at both ends of the insert. By setting a concave groove, the screw position in the middle of the insert is avoided, and two or more small keys are connected to form a whole, increasing the overall length of the positioning key and ensuring the overall force of the positioning key, thereby ensuring the positioning key's function of preventing lateral force and having good overall integrity. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure in the prior art;

[0014] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0015] Figure 3 This is a schematic diagram of the overall structure of another embodiment of the present invention;

[0016] Figure 4 yes Figure 2 The illustrated embodiment is a structural diagram when applied.

[0017] Reference numerals: 1-locating key body, 2-concave groove, 3-avoidance hole, 4-connection hole; 10-mounting base, 20-insert. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0019] A type of concave combination locating key with a hole, such as Figure 2 , Figure 3 , Figure 4As shown, it includes a positioning key body 1, at least one concave groove 2 is provided in the middle along the length direction of the positioning key body 1, a clearance hole 3 is provided in the concave groove 2, and connecting holes 4 are provided on both sides of the positioning key body 1.

[0020] Furthermore, the concave groove 2 extends through both the front and rear sides of the positioning key body 1, and the positioning key body 1 is in the shape of a "U". Preferably, the clearance hole 3 is in the shape of a racetrack, and the length direction of the clearance hole 3 is consistent with the length direction of the positioning key body 1.

[0021] Furthermore, such as Figure 3 As shown, there are two concave grooves 2, and a connecting hole 4 is provided in the middle of the two concave grooves 2.

[0022] like Figure 4 As shown, the positioning key of the present invention is positioned between the screws at both ends of the insert. The two ends of the positioning key body are mounted on the mounting base 10 by screws. By setting the concave groove 2, the screw position in the middle of the insert 20 is avoided, and the two small key segments are connected to form a whole, increasing the overall length of the positioning key to >100mm, resulting in better integrity and ensuring the overall force bearing of the positioning key, thereby ensuring the positioning key's function of preventing lateral forces. Depending on the actual situation, a three-segment or four-segment key with multiple concave grooves in the middle can also be designed.

[0023] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A perforated concave combination positioning key, comprising a positioning key body (1), characterized in that: The positioning key body (1) has at least one concave groove (2) in the middle along the length direction, and a clearance hole (3) that runs vertically through the concave groove (2) is provided in the concave groove (2). The positioning key body (1) has connecting holes (4) on both sides. The clearance hole (3) is racetrack shaped, and the length direction of the clearance hole (3) is consistent with the length direction of the positioning key body (1). The locating key is positioned between the screws at both ends of the insert. The two ends of the locating key body are mounted on the mounting base by screws. By setting a concave groove to avoid the screw position in the middle of the insert, the two small keys are connected to form a whole.

2. The perforated concave combination positioning key according to claim 1, characterized in that: The concave groove (2) passes through the front and rear sides of the positioning key body (1), and the positioning key body (1) is in the shape of a "U".

3. The perforated concave combination positioning key according to claim 1, characterized in that: The number of the concave grooves (2) is two, and the two concave grooves (2) are provided with connecting holes (4) in the middle.

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