Manufacturing process of special ratchet wrench on matched cylinder

Abstract

The invention discloses a manufacturing process of a special ratchet wrench on a matched cylinder, and relates to the technical field of ratchet wrench manufacturing, and the manufacturing process comprises the following steps: adopting a heading machine or a hydraulic machine and a punching machine, and carrying out heating cold extrusion forming; a hydraulic machine, a punching machine and a composite die are adopted to complete shapes; annealing, sand blasting and phosphating; a hydraulic machine, a punching machine and a composite die are used for manufacturing large and small inner round holes, left and right baffle piece semicircular holes, triangle direct taking-out and cover plate steps at a time; punching a gear hole, a cover plate screw hole and a shifting fork hole; the outer diameter shape of the rod part; polishing the surface; heat treatment; grinding the surface; sand blasting; electroplating is conducted; and assembling a finished product. According to the manufacturing process disclosed by the invention, the high-efficiency and accurate production of the ratchet wrench is realized by accurately controlling parameters and process conditions of each processing step. And meanwhile, by optimizing the surface treatment and heat treatment processes, the hardness and wear resistance of the product are improved, and the service life is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of ratchet wrench manufacturing, in particular to a manufacturing process of a special ratchet wrench on a matching cylinder. Background Art

[0002] Ratchet wrenches are commonly used hand tools. They are widely used in machinery repair, car maintenance and other fields because of their unidirectional rotation and easy operation in a small space. However, the traditional ratchet wrench manufacturing process often has problems such as low production efficiency, low finished product precision, and insufficient surface treatment, which affects the product's user experience and life.

[0003] Therefore, a manufacturing process for a special ratchet wrench on a matching cylinder becomes a problem that needs to be solved urgently. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a new manufacturing process of a special ratchet wrench on a matching barrel, so as to improve the production efficiency and product quality of the ratchet wrench.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is: a manufacturing process of a special ratchet wrench on a matching cylinder, comprising the following steps:

[0006] Step 1: Pier head forming: using a pier head machine or hydraulic press, heating and cold extrusion forming;

[0007] Step 2: Initial forming of the flattened inner circle: Use a hydraulic press, a punch press and a composite mold to complete the shape, and use a punch press trimming process;

[0008] Step 3: annealing, sandblasting, and phosphating;

[0009] Step 4: Precise inner circular cavity forming: Use hydraulic press, punch press and composite mold to make large and small inner circular holes, left and right baffle semicircular holes, triangle direct lead-out and cover plate steps in one go;

[0010] Step 5: Punching process: punching gear holes, cover screw holes and fork holes;

[0011] Step 6, turning the outer diameter shape of the rod;

[0012] Step 7: Polish the surface;

[0013] Step 8: heat treatment;

[0014] Step 9, grinding the surface;

[0015] Step 10, sandblasting;

[0016] Step 11, electroplating;

[0017] Step 12: Assemble the finished product.

[0018] Furthermore, the material size should be determined before proceeding to step 1.

[0019] Further, after completing the polishing surface of step 7, typing is performed and then the heat treatment of step 8 is performed.

[0020] The advantages of the present invention over the prior art are: the manufacturing process of the present invention realizes efficient and accurate production of ratchet wrenches by accurately controlling the parameters and process conditions of each processing step. At the same time, by optimizing the surface treatment and heat treatment processes, the hardness and wear resistance of the product are improved and the service life is extended. In addition, the manufacturing process of the present invention also has the advantages of simple operation and low cost, and has high practical value and application prospects. DETAILED DESCRIPTION

[0021] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by terms such as “upper”, “lower”, “front”, “rear”, “left”, “right”, “inside”, “outside”, “vertical”, and “circumferential” are based on the orientations or positional relationships shown and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] The manufacturing process of the special ratchet wrench on the matching cylinder of the present invention is further described in detail below.

[0024] The specific implementation process of the manufacturing process of a special ratchet wrench on a matching cylinder of the present invention is as follows:

[0025] A manufacturing process for a special ratchet wrench on a matching barrel comprises the following steps:

[0026] Before formal processing, the specifications and dimensions of the required materials are first determined according to the design requirements to ensure the accuracy and efficiency of the subsequent processing process.

[0027] The raw materials are heated and cold extruded using a header machine or hydraulic press and punching machine to form the initial head shape of the wrench. This step ensures the quality and stability of the header molding by precisely controlling the temperature and pressure.

[0028] The material behind the pier is flattened using a hydraulic press, a punch press and a composite die to form the initial shape of the inner circle of the wrench. The design of the composite die must ensure the accuracy and consistency of the finished product.

[0029] The initially formed wrench is annealed to eliminate internal stress and improve the plasticity of the material. It is then sandblasted to remove the surface oxide layer and impurities, and then phosphated to enhance surface adhesion.

[0030] Hydraulic presses, punches and composite dies are used to complete the precise forming of large and small inner circular holes, left and right baffle semicircular holes, triangular direct leads and cover plate steps at one time. This step requires precise mold design and stable processing to ensure the accuracy and performance of the finished product.

[0031] Use punching equipment to punch out gear holes, cover screw holes and fork holes. The punching position and size must be strictly controlled to meet the design requirements.

[0032] The outer diameter of the wrench stem is processed on a lathe to ensure that it meets the design requirements.

[0033] The processed wrenches are polished to remove surface burrs and scratches, and to improve surface smoothness and aesthetics. After polishing, they can be typed and marked for identification and traceability.

[0034] The polished wrenches are heat treated to improve their hardness and wear resistance. The heat treatment process requires strict control of temperature and time to ensure product quality.

[0035] The heat-treated wrenches are ground to further refine the surface roughness and improve the overall quality of the product.

[0036] The ground wrenches are subjected to secondary sandblasting to remove surface residues, enhance surface adhesion, and prepare for subsequent electroplating.

[0037] The sandblasted wrenches are electroplated to improve their corrosion resistance and aesthetics. The electroplating layer must be uniform and dense to ensure product quality.

[0038] Assemble the components into a complete ratchet wrench and perform functional tests and appearance inspections to ensure that the finished product meets the design requirements.

[0039] The present invention and its implementation methods are described above, but such description is not restrictive, and what is shown is only one of the implementation methods of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A manufacturing process for a special ratchet wrench on a matching cylinder, characterized in that: The following steps are included: Step 1: Pier head forming: using a pier head machine or hydraulic press, heating and cold extrusion forming; Step 2: Initially form the flat inner circle: Use a hydraulic press, a punch press and a composite mold to complete the shape; Step 3: annealing, sandblasting, and phosphating; Step 4: Precise inner circular cavity forming: Use hydraulic press, punch press and composite mold to make large and small inner circular holes, left and right baffle semicircular holes, triangle direct lead-out and cover plate steps in one go; Step 5: Punching process: punching gear holes, cover screw holes and fork holes; Step 6, turning the outer diameter shape of the rod; Step 7: Polish the surface; Step 8: heat treatment; Step 9, grinding the surface; Step 10, sandblasting; Step 11, electroplating; Step 12: Assemble the finished product.

2. The manufacturing process of a special ratchet wrench for a matching cylinder according to claim 1, characterized in that: Before proceeding to step 1, the material size should be determined.

3. The manufacturing process of a special ratchet wrench for a matching cylinder according to claim 1, characterized in that: After finishing the polished surface in step 7, typing is performed and then heat treatment in step 8 is performed.