Nut transferring and clamping tool for injection mold

Abstract

The nut transferring and clamping tool for the injection mold comprises a handheld plate and a base plate connected with the handheld plate, the base plate is provided with a plurality of sliding holes, positioning pins, positioning rods and elastic reset pieces, the positioning pins and the positioning rods are in sliding fit with the corresponding sliding holes, and the elastic reset pieces are arranged on the base plate. The end parts of the positioning pin and the positioning rod are kept in an extending state under the action of corresponding elastic resetting pieces; and limiting parts for preventing the positioning pin and the positioning rod from being separated from the sliding holes are arranged on the positioning pin and the positioning rod. The positioning rods for loading the nuts are independent in position and do not influence each other, when the nuts on one positioning rod cannot be fed into mounting holes in a mold due to precision or deformation of the positioning rod, work of other positioning rods is not affected, an operator can supplement the nuts manually, operation is easier, and efficiency is higher.

Description

Technical Field

[0001] The utility model relates to an auxiliary installation vehicle, in particular to a nut transfer clamping tool for an injection mold. Background Art

[0002] Some injection molded parts are provided with screw holes. In order to improve the strength and service life of the screw holes, a method of integrally injection molding a metal nut and plastic is adopted. Therefore, we will put the metal nuts into the injection mold one by one during injection molding. However, the holes in the injection mold are relatively deep, and it is very time-consuming to put them in by hand one by one. However, for the production of small batches of products, it is uneconomical to adopt a fully automated feeding method. Therefore, the applicant designed a manually operated inner nut loading fixture (Patent No.: 202221764488.1) to solve the above problems.

[0003] However, the above fixture requires structures such as a fixed plate, a pressing plate, and a pushing plate, which are heavy. Even if an aluminum plate is used, the weight is about 5 kg. This weight is not suitable for long-term hand-held operation and has a high fatigue strength.

[0004] Moreover, the positioning structure of the previous fixture is straight hole + pin positioning. In the positioning of a larger fixture, this positioning method will be affected by machining accuracy and structural deformation, resulting in jamming during the operation process. Content of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a nut transfer clamping tool for an injection mold.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0007] A nut transfer clamping tool for an injection mold, characterized in that: it includes a hand-held plate and a base plate connected to the hand-held plate. A plurality of sliding holes, positioning pins, positioning rods, and elastic resetting members are provided on the base plate. The positioning pins and positioning rods are slidably matched with the corresponding sliding holes. The positioning pins and positioning rods are kept in a state where their ends protrude under the action of the corresponding elastic resetting members. Limit parts for preventing them from slipping out of the sliding holes are provided on both the positioning pins and the positioning rods.

[0008] The positioning pin is matched with the corresponding sliding hole through a linear bearing.

[0009] A nut pushing tube is provided between the positioning rod and the corresponding sliding hole. The positioning rod is slidably matched with the nut pushing tube, and the nut pushing tube is fixed to the base plate.

[0010] A guide frame is provided on the base plate. A guide hole is provided on the guide frame. The elastic resetting member is a compression spring. The positioning pin and the positioning rod are located in the corresponding compression springs. One end of the compression spring abuts against the guide frame and the other end abuts against the limit part.

[0011] The limiting part is a convex ring.

[0012] The end of the positioning pin is provided with a conical positioning end that mates with the die positioning hole.

[0013] A nut push tube is provided between the positioning rod and the corresponding sliding hole. The positioning rod is slidably fitted with the nut push tube. The sliding hole that mates with the positioning rod is a counterbore. The nut push tube is provided with a tube cap that can mate with the counterbore, and the guide frame can press the tube cap tightly.

[0014] The beneficial effects of the present utility model are as follows: Each positioning rod of the present utility model adopts the telescopic structure of an elastic reset member, making the positions of the positioning rods for loading nuts independent of each other and not affecting each other. When it encounters the situation where the nut on a certain positioning rod cannot be inserted into the installation hole on the die due to precision or deformation, it does not affect the operation of other positioning rods. The operator can manually supplement the nut, and the operation is easier and the efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0016] Figure 1 is the structural view of the present utility model;

[0017] Figure 2 is the top view of the present utility model;

[0018] Figure 3 is Figure 2 the sectional structural view of A-A of

[0019] Figure 4 is Figure 2 the sectional structural view of B-B of DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The advantages, features, and implementation methods of the present disclosure will be clarified by the following implementation examples described with reference to the drawings. However, the present disclosure can be embodied in different forms and should not be construed as limited to the implementation examples set forth herein. On the contrary, these implementation examples are provided so that the present disclosure will be comprehensive and complete, and will fully convey the scope of the present disclosure to those skilled in the art. In addition, the present disclosure is only limited by the scope of the claims.

[0021] The shapes, dimensions, ratios, angles, and numbers disclosed in the drawings used to describe the embodiments of the present disclosure are merely examples, and thus the present disclosure is not limited to the details shown. Throughout the specification, the same reference numerals refer to the same elements. In the following description, when the detailed description of related known functions or configurations is determined to unnecessarily obscure the focus of the present disclosure, such detailed description will be omitted. When using "comprising", "having", and "including" described in this specification, other components may be added unless "only" is used. Unless otherwise indicated, terms in the singular form may include the plural form.

[0022] When interpreting an element, although not explicitly described, the element is understood to include a margin of error.

[0023] When describing positional relationships, for example, when the positional relationship is described as "on", "above", "below", and "adjacent to", unless "immediately" or "directly" is used, one or more parts may be arranged between two other parts.

[0024] When describing temporal relationships, for example, when the temporal order is described as "after", "subsequently", "next", and "before", unless "exactly" or "directly" is used, discontinuous cases may be included.

[0025] It should be understood that although terms such as "first" and "second" may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from other elements. For example, the first element may be referred to as the second element, and similarly, the second element may be referred to as the first element without departing from the scope of the present disclosure.

[0026] As can be fully understood by those skilled in the art, the features of different embodiments of the present disclosure may be partially or fully coupled or combined with each other, and may cooperate with each other in various ways and be technically driven. The embodiments of the present disclosure may be executed independently of each other, or may be executed together in a mutually dependent relationship.

[0027] Referring to Figures 1 to 4 , the present utility model discloses a nut transfer clamping tool for an injection mold, which includes a handheld plate 1 and a substrate 2 connected to the handheld plate 1. The handheld plate 1 is for holding by hand and is made of plastic for being more lightweight, while the substrate 2 adopts a single-piece aluminum plate design and a partial hollow structure, effectively reducing the weight of the fixture and the operating fatigue strength. The handheld plate 1 is fixed to the substrate 2 as a whole through a connecting rod.

[0028] As shown in the figure, a plurality of sliding holes 3, positioning pins 4, positioning rods 5, and elastic reset members 6 are provided on the substrate 2. The positioning pins 4 and the positioning rods 5 are slidably engaged with the corresponding sliding holes 3. The positioning pins 4 and the positioning rods 5 are kept in a state where their ends protrude through the action of the corresponding elastic reset members 6. Limiting portions 7 for preventing them from slipping out of the sliding holes 3 are provided on both the positioning pins 4 and the positioning rods 5. Through the above structure, the positions of the positioning rods 5 for each loading nut are independent and do not affect each other. In the previous mechanism, all the positioning rods 5 were fixed on a whole plate. Therefore, if one of the positioning rods 5 is deformed and bent and cannot be inserted into the mounting hole on the mold, all the positioning rods 5 cannot be inserted into the mounting hole. During installation, hold the hand-held plate 1 and align the positioning rod 5 with the mounting hole and insert it. When the positioning rod 5 reaches the bottom of the hole, the substrate 2 will continue to move to push the nut on the positioning rod 5 into the mounting hole. As a preferred structure, a nut pushing tube 8 is provided between the positioning rod 5 and the corresponding sliding hole 3. The positioning rod 5 is slidably engaged with the nut pushing tube 8, and the nut pushing tube 8 is fixed to the substrate 2. One end of the nut pushing tube 8 is located outside the sliding hole 3. When pushing the nut, the nut is pushed into the mounting hole through the end located outside the sliding hole 3, so that a large distance is maintained between the substrate 2 and the mold, thereby avoiding collision between the substrate 2 and the mold. In the above, the nut pushing tube 8 can be fixed to the sliding hole 3 by a tight fit.

[0029] As shown in the figure, as a preferred structure, the sliding hole 3 cooperating with the positioning rod 5 is a counterbore. A tube cap 9 capable of cooperating with the counterbore is provided on the nut pushing tube 8, and the guide frame can press the tube cap 9. When the guide frame is fixed to the substrate 2 by screws, the nut pushing tube 8 can be locked in the counterbore.

[0030] As a specific structure, the limiting portion 7 is a convex ring, and the convex ring can abut against the substrate 2 to prevent the positioning rod 5 or the positioning pin 4 from slipping out of the sliding hole 3.

[0031] As shown in the figure, the present application uses the positioning pin 4 for positioning. However, previously, the cylindrical surface of the positioning pin 4 was used to cooperate with the positioning hole on the mold for positioning. However, if the substrate 2 is deformed, it will cause friction and jamming between the positioning pin 4 and the positioning hole, making it difficult to insert or pull out the positioning pin 4. Therefore, the diameter of the positioning pin 4 in this structure is larger than that of the positioning hole. Therefore, the positioning pin 4 will not be inserted into the positioning hole. It is positioned by the cooperation of a conical positioning end 10 provided at the end of the positioning pin 4 and the positioning hole. When inserting and pulling out, because the contact is a circular line contact, even if there is a slight deformation, it will not cause insertion and extraction jamming. Using a conical pin for positioning effectively solves the positioning jamming phenomenon, making the positioning more accurate and smooth. Moreover, we have designed a fault-tolerant structure. A guide chamfer is provided at the orifice of the mounting hole. Therefore, even if there is a slight deviation, it does not affect the feeding of the nut. Moreover, the diameter of the positioning rod 5 is smaller than the inner hole of the nut by a certain size, so that the nut can have a certain radial movement to prevent jamming.

[0032] As a further structure, the positioning pin 4 is matched with the corresponding sliding hole 3 through a linear bearing 12. The application of the linear bearing 12 makes the positioning of the positioning rod 5 more accurate and the reset more smooth.

[0033] As shown in the figure, a guide frame 11 is provided on the substrate 2. The guide frame 11 has an inverted "concave" shape structure. Connecting foot plates are provided at both bottom ends. Screws are fixed to the substrate 2 through the connecting foot plates, and the connecting foot plates also press the pipe cap 9. A guide hole is provided on the top surface of the guide frame 11. The elastic reset member 6 is a compression spring, and the positioning pin 4 and the positioning rod 5 are located in the corresponding compression springs. One end of the compression spring abuts against the guide frame 11 and the other end abuts against the limiting portion 7, so that the positioning pin 4 and the positioning rod 5 can always be kept in a state of protruding from the sliding hole 3.

[0034] The above has introduced in detail a nut transfer clamping tool for an injection mold provided by an embodiment of the present invention. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A nut transport and clamping tool for injection molds, characterized in that: It includes a hand-held plate and a base plate connected to the hand-held plate, and the base plate is provided with a plurality of sliding holes, positioning pins, positioning rods, and elastic reset parts. The positioning pins and positioning rods are slidably matched with the corresponding sliding holes. The positioning pins and positioning rods maintain the state of extending the ends through the action of the corresponding elastic reset parts. The positioning pins and positioning rods are provided with limiting parts to prevent them from falling out of the sliding holes.

2. A nut transporting and clamping tool for injection mold according to claim 1, characterized in that: The positioning pin is matched with the corresponding sliding hole through a linear bearing.

3. The nut transporting and clamping tool for injection mold according to claim 1, characterized in that: A nut push tube is arranged between the positioning rod and the corresponding sliding hole. The positioning rod and the nut push tube are slidably matched, and the nut push tube is fixed to the base plate.

4. The nut transporting and clamping tool for injection mold according to claim 1, characterized in that: The base plate is provided with a guide frame, the guide frame is provided with a guide hole, the elastic reset member is a compression spring, and the positioning pin and the positioning rod are located in the corresponding compression spring, and one end of the compression spring abuts against the guide frame and the other end thereof abuts against the limiting part.

5. The nut transporting and clamping tool for injection mold according to claim 1, characterized in that: The limiting portion is a convex ring.

6. A nut transporting and clamping tool for injection mold according to claim 1, characterized in that: The end of the positioning pin is provided with a tapered positioning end matched with the mold positioning hole.

7. A nut transporting and clamping tool for injection mold according to claim 4, characterized in that: A nut push tube is provided between the positioning rod and the corresponding sliding hole. The positioning rod and the nut push tube are slidably matched. The sliding hole matched with the positioning rod is a countersunk hole. A pipe cap that can match the countersunk hole is provided on the nut push tube, and the guide frame can press the pipe cap.

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