Lateral pushing structure capable of preventing workpiece from being scratched

Abstract

The utility model discloses a side pushing structure capable of preventing a workpiece from being scratched, which comprises a base, a side pushing mechanism and a side pushing mechanism, the nylon ball head plunger is installed on the side face of the base and used for pushing the target workpiece to be tightly attached to the side face of the base, and lateral positioning and clamping are achieved; the nylon ball plunger comprises a plunger body made of a metal material; the nylon ball head is fixed at the end part of the plunger body and is in direct contact with a target workpiece, and the nylon ball head is made of a nylon material and is designed to be spherical; and the reset mechanism is used for enabling the nylon ball head plunger to automatically reset after the external force is relieved. A nylon ball plunger is adopted as a side pushing mechanism, so that the surface of a workpiece is effectively prevented from being scratched, and the risk of defective products is reduced; the structure is simple, manufacturing, assembling and maintaining are easy, and cost is reduced; the clamp is suitable for various workpieces needing lateral positioning and clamping and has high universality. And the nylon material has good wear resistance and self-lubricating property, so that the reliability and the service life of the side thrust structure are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to workpiece positioning and clamping device technical field, concretely is a side push structure of preventing scratching workpiece. BACKGROUND

[0002] In the field of machining, automation assembly, etc., it is often necessary to position and clamp the workpiece laterally. The existing lateral push structure usually adopts a plunger or push rod made of steel or other metal materials, which has a complex structure and the following defects: 1. Complex structure: the traditional side push structure often needs multiple parts to cooperate, which has a complex structure and high assembly and maintenance costs. 2. Easy to scratch the workpiece: the push rod made of steel or other metal materials is easy to scratch the surface of the workpiece due to friction or impact when contacting the workpiece, especially for workpieces with high surface finish requirements, which will cause adverse effects and increase the risk of defective products.

[0003] Therefore, the present application provides a side push structure with simple structure and preventing scratching workpiece, which adopts a nylon ball head plunger as the side push mechanism to effectively prevent scratching the surface of the workpiece and reduce the risk of defective products. SUMMARY

[0004] The utility model discloses a kind of side push structures for preventing scratching workpiece, to solve the problems in the prior art described above.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A side push structure for preventing scratching workpiece, comprising:

[0007] A base for carrying a target workpiece;

[0008] A nylon ball head plunger installed on the side of the base for pushing the target workpiece against the side of the base to achieve lateral positioning and clamping;

[0009] The nylon ball head plunger comprises:

[0010] A plunger body made of metal material;

[0011] A nylon ball head fixed to the end of the plunger body and directly contacting the target workpiece, the nylon ball head is made of nylon material and designed as a spherical shape;

[0012] A reset mechanism for automatically resetting the nylon ball head plunger after removing external force.

[0013] Further, the reset mechanism includes a spring and a guide sleeve, the spring has an elastic coefficient of 5-10 N / mm, and its two ends are respectively abutted against the inner wall step of the guide sleeve and the tail end surface of the nylon ball head plunger.

[0014] Further, the nylon ball head is fixed on the plunger body by means of threaded connection, interference fit or injection molding.

[0015] Further, the nylon ball head has a radius R=2-5mm, is made of PA66 or PA46, is reinforced by 15-30% glass fiber, has a surface treated by plasma polishing with a roughness Ra≤0.2μm, and is embedded with solid lubricating particles of molybdenum disulfide or graphene with a particle size of 10-50μm and a coverage rate≥80%.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] The nylon ball head plunger is adopted as the side pushing mechanism, so that the surface of the workpiece is effectively prevented from being scratched, and the risk of defective products is reduced; the structure is simple, and the nylon ball head plunger is easy to manufacture, assemble and maintain, so that the cost is reduced; the nylon ball head plunger is suitable for various workpieces needing lateral positioning and clamping, and has strong universality; the nylon material has good wear resistance and self-lubricating property, so that the reliability and service life of the side pushing structure are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 Fig. 1 is a structural schematic view of the nylon ball head plunger when the nylon ball head plunger is pushed;

[0019] Fig. 2 Fig. 2 is a structural schematic view of the nylon ball head plunger when the nylon ball head plunger is reset.

[0020] In the drawing: 1, base; 2, target workpiece; 3, nylon ball head plunger; 31, plunger body; 32, nylon ball head; 4, reset mechanism; 41, spring; 42, guide sleeve. DETAILED DESCRIPTION

[0021] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious for those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, some technical features known in the art are not described to avoid confusion with the utility model.

[0022] The applicant designs a side pushing structure for preventing the workpiece from being scratched as shown in Figs. 1-2 The side pushing structure comprises:

[0023] The base 1 is used for bearing the target workpiece 2.

[0024] The nylon ball head 32 plunger 3 is installed on the side surface of the base 1 and is used for pushing the target workpiece 2 to be close to the side surface of the base 1, so that lateral positioning and clamping are realized.

[0025] The nylon ball head 32 plunger 3 comprises:

[0026] The plunger body 31 is cylindrical in shape and made of a metal material such as steel, aluminum, etc., with certain strength and rigidity for bearing the thrust force;

[0027] The nylon ball head 32 is fixed to the end of the plunger body 31 and directly contacts the target workpiece 2. The nylon ball head 32 is made of nylon material and is designed in a spherical shape.

[0028] The reset mechanism 4 is arranged inside or outside the plunger body 31 and is used to automatically reset the nylon ball head 32 plunger 3 after the external force is removed. The reset mechanism 4 can be a spring 41, a gas cylinder, or other elastic elements.

[0029] The nylon ball head 32 is made of nylon material. Nylon material has good wear resistance, self-lubricating property, and elasticity, and its hardness is lower than that of most metal materials, so it is not easy to scratch the surface of the workpiece when in contact with the workpiece; The spherical design of the nylon ball head 32 minimizes the contact area with the workpiece, reduces friction, and further reduces the possibility of scratching. The spherical design also allows the nylon ball head 32 to rotate freely within a certain range, which can adapt to the slight unevenness of the workpiece surface and achieve more uniform pressure distribution.

[0030] The nylon ball head 32 can be fixed to the plunger body 31 in various ways, such as: 1. Threaded connection: The nylon ball head 32 plunger 3 body is connected by threads, which is convenient for replacement and adjustment. 2. Interference fit: The nylon ball head 32 and the plunger body 31 are connected by interference fit to ensure the reliability of the connection. 3. Injection molding: The nylon ball head 32 is directly injection molded on the end of the plunger body 31 to form an integrated structure.

[0031] The reset mechanism 4 of the anti-scratching side pushing structure of the embodiment further includes a spring 41 and a guide sleeve 42 cylinder, and the elastic coefficient of the spring 41 is 5-10 N / mm, and the two ends thereof are respectively abutted against the inner wall step of the guide sleeve 42 cylinder and the tail end surface of the nylon ball head 32 plunger 3.

[0032] The nylon ball head 32 is fixed to the plunger body 31 by threaded connection, interference fit, or injection molding in the further optional anti-scratching side pushing structure of the embodiment.

[0033] The radius R of the nylon ball head 32 is 2-5 mm, the material is PA66 or PA46, 15-30% glass fiber is added for reinforcement, the surface of the ball head is treated by plasma polishing, the roughness Ra is ≤0.2 μm, and the solid lubricating particles of molybdenum disulfide or graphene with a particle size of 10-50 μm are embedded, and the coverage is ≥80% in the further optional anti-scratching side pushing structure of the embodiment.

[0034] Working principle: the target workpiece 2 is put into the base 1, the nylon ball head 32 plunger 3 is pushed, the nylon ball head 32 is contacted with the side of the target workpiece 2, and pressure is applied, so that the target workpiece 2 is tightly attached to the other side of the base 1, so as to realize lateral positioning and clamping. Since the nylon ball head 32 is made of nylon material and is designed in a spherical shape, it is not easy to scratch the surface of the workpiece during pushing. After the external force is removed, the reset mechanism 4 makes the nylon ball head 32 plunger 3 automatically reset.

[0035] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A side push structure for preventing scratching of a workpiece, characterized by, The utility model relates to a ball head plunger for target workpiece, which comprises a base for carrying the target workpiece, a ball head plunger installed on the side of the base for pushing the target workpiece to tightly contact with the side of the base to realize lateral positioning and clamping. The ball head plunger comprises a plunger body made of metal material and a nylon ball head fixed on the end of the plunger body and directly contacting with the target workpiece, which is made of nylon material and designed as a spherical shape. A reset mechanism is used to automatically reset the ball head plunger after the external force is removed. The reset mechanism comprises a spring and a guide sleeve, and the spring has an elastic coefficient of 5-10 N / mm, with both ends respectively abutting against the inner wall step of the guide sleeve and the tail end surface of the ball head plunger. The nylon ball head is fixed on the plunger body by means of threaded connection, interference fit or injection molding. ​ ​ 2. The side pushout structure for preventing scratching of a workpiece according to claim 1, wherein ​ 3. The side thrust structure for preventing scratching of a workpiece according to claim 1, wherein ​

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