Slender rod self-locking type clamping tool for surface treatment

Abstract

The utility model discloses a slender rod self-locking type clamping tool for surface treatment, which can meet the clamping requirements of slender rods with different outer circle diameters and realize an automatic locking function in a racking process. A slender rod self-locking type clamping tool for surface treatment comprises a conductive tool body, a locking structure is arranged on the conductive tool body and comprises two locking pieces arranged on the same horizontal plane, a single-hook lock clamp is arranged at the end of one locking piece, a double-hook lock clamp is arranged at the end of the other locking piece, and the single-hook lock clamp and the double-hook lock clamp are arranged on the conductive tool body. Double hooks of the double-hook lock clamp are distributed up and down, a gap is formed between the double hooks of the double-hook lock clamp, the gap between the double hooks of the single-hook lock clamp corresponds to the gap between the double hooks of the double-hook lock clamp, and the single-hook lock clamp and the double-hook lock clamp are oppositely bent into an arc shape; when the two locking pieces are pressed and deformed oppositely, the single-hook lock clamp and the double-hook lock clamp are staggered in a crossed mode, an elastic clamping space is formed between the arc-shaped portions of the single-hook lock clamp and the arc-shaped portions of the double-hook lock clamp, and the elastic clamping space is used for clamping the slender rod in a self-adaptive mode.

Description

Technical Field

[0001] The utility model relates to an anodic oxidation (micro-arc oxidation) surface treatment tooling fixture, in particular to a slender rod self-locking clamping tooling used for surface treatment. Background Art

[0002] Shaft parts with a ratio of workpiece length to diameter greater than 20 are usually called slender rod parts. At present, there are countless slender rod parts in various mechanical industries. Different surface treatment processes are required according to the material properties and service conditions, such as phosphating, oxidation, anodizing, micro-arc oxidation, diamond-like coating (TAC), soft nitriding, etc., and the surface appearance quality requirements are extremely strict. Among the many surface treatment processes, there are surface treatment processes that can be directly immersed in the solution to complete the chemical reaction (phosphating, oxidation, soft nitriding), and there are also surface treatment processes that must be powered on to complete the parts (anodizing, micro-arc oxidation, TAC). Therefore, the mounting method of slender rod surface treatment is particularly important. When directly immersed, the contact color difference between slender rod parts or between parts and fixtures must be considered; and the energized surface treatment must not only consider the contact color difference problem, but also consider how to avoid the ablation problem of parts due to unreliable mounting.

[0003] At present, the mounting method for slender rod ammeters is mostly a "double-top mounting" method in which the two ends of the slender rod are clamped on top. However, this method results in large contact marks on the two end surfaces, and later repairs are required to ensure the consistency of the overall appearance. Moreover, this clamping method is affected by the length of the slender rod, and most of them require special tooling, which is not conducive to the universal use of slender rod parts. At the same time, this mounting method is difficult, has low production efficiency, and is not suitable for large-scale production operations. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a self-locking clamping fixture for slender rods used for surface treatment, which can meet the clamping requirements of slender rods with different outer diameters and realize the automatic locking function during the mounting process.

[0005] The purpose of the utility model is achieved in this way:

[0006] A self-locking clamping tool for a slender rod for surface treatment, comprising a conductive tool body, a locking structure provided on the conductive tool body, the locking structure comprising two locking plates arranged on the same horizontal plane, a single-hook locking clip provided at the end of one locking plate, a double-hook locking clip provided at the end of the other locking plate, the double hooks of the double-hook locking clip being distributed up and down, a gap being provided between the double hooks of the double-hook locking clip, the single-hook locking clip and the double-hook locking clip having a gap corresponding to each other, and the single-hook locking clip and the double-hook locking clip being bent toward each other into an arc shape;

[0007] When the two locking plates are pressed toward each other, the two locking plates are compressed and deformed toward each other, the single-hook locking clamp and the double-hook locking clamp are cross-displaced, and an elastic clamping space is formed between the arc-shaped parts of the single-hook locking clamp and the double-hook locking clamp, and the elastic clamping space is used for adaptively clamping the slender rod.

[0008] Preferably, the single hook locking clamp and the double hook locking clamp are in an inclined state.

[0009] Preferably, when the tooling is used for anodized surface treatment, the conductive tooling body and the locking structure are made of titanium alloy.

[0010] Preferably, when the tooling is used for micro-arc oxidation surface treatment, the conductive tooling body and the locking structure are both made of aluminum alloy.

[0011] Preferably, the conductive tooling body is a rectangular frame structure, and a plurality of locking structures are provided on the conductive tooling body, and the plurality of locking structures are distributed in a matrix.

[0012] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0013] The utility model overcomes the disadvantage of mounting the slender rod parts without process holes, and realizes the mounting purpose of stably clamping the slender rod parts for conducting surface treatment.

[0014] The two locking clamps of the utility model automatically adjust the locking tension according to the diameter of the slender rod, ensuring the stable and reliable mounting of the parts, and meeting the clamping requirements of slender rods with different outer diameters, eliminating the problem of contact marks requiring later repair, and having the advantages of simple mounting, strong applicability, and reliable clamping, etc. It improves the production efficiency of enterprises and has great social application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a main schematic diagram of the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of top view;

[0017] Figure 3 for Figure 1 A side view schematic diagram of

[0018] Figure 4 for Figure 1 A three-dimensional schematic diagram of

[0019] Figure 5 for Figure 4 A partial enlarged schematic diagram of .

[0020] Reference numerals

[0021] In the accompanying drawings, 1 is the conductive tooling body, 2 is the single hook locking clip, 3 is the double hook locking clip, and 4 is the locking sheet. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below with reference to specific implementation cases.

[0023] like Figure 1-Figure 5 As shown, a self-locking clamping tool for slender rods used for surface treatment comprises a conductive tool body 1, on which a locking structure is provided, wherein the locking structure comprises two locking plates 4 arranged on the same horizontal plane, wherein a single-hook locking clamp 2 is provided at the end of one locking plate 4, and a double-hook locking clamp 3 is provided at the end of the other locking plate 4, wherein the double hooks of the double-hook locking clamp 3 are distributed up and down, and there is a gap between the double hooks of the double-hook locking clamp 3, and the gap between the double hooks of the single-hook locking clamp 2 and the double-hook locking clamp 3 corresponds to each other, and the single-hook locking clamp 2 and the double-hook locking clamp 3 are bent toward each other into an arc; when the two locking plates 4 are pressed toward each other, the single-hook locking clamp 2 and the double-hook locking clamp 3 are cross-displaced, and an elastic clamping space is formed between the arc-shaped parts of the single-hook locking clamp 2 and the double-hook locking clamp 3, and the elastic clamping space is used for adaptively clamping the slender rod.

[0024] The single hook lock clip 2 and the double hook lock clip 3 are in an inclined state. In this embodiment, the double hook lock clip and the single hook lock clip are located at the front end of the locking plate, and the single hook lock clip 2 and the double hook lock clip 3 are both inclined at about 45 degrees, so that the locking tension is expanded at a certain slope to prevent the slender rod from slipping and falling off.

[0025] The conductive tooling body is a rectangular frame structure, and a plurality of locking structures are arranged on the conductive tooling body, and the plurality of locking structures are distributed in a matrix. Specifically, a plurality of mounting layers are arranged vertically on the conductive tooling body, and each mounting layer is arranged horizontally with a plurality of locking structures, which can clamp a plurality of slender rods at the same time, and the slender rods can obtain a plurality of clamping positions in the vertical direction.

[0026] If the tooling is used in an anodizing process, the conductive tooling body and the locking structure used in the tooling are made of titanium alloy; if it is used in a micro-arc oxidation process, the tooling is made of aluminum alloy.

[0027] Directions:

[0028] First, press the locking piece at one end of the double-hook lock clamp and the single-hook lock clamp hard to make the two lock clamps cross and misalign, forming an elliptical area (clamping space) between the two lock clamps, then take a slender rod part and insert it vertically into the area and release the lock clamp. The double-hook lock clamp and the single-hook lock clamp rely on tension (elastic force) to self-lock and clamp the slender rod part. The clamping force of the single-hook lock clamp is located in the middle of the two clamping forces of the double-hook lock clamp, which can keep the slender rod part in a vertical state and achieve high-efficiency self-locking clamping. After the clamping is completed, hang the entire tooling on the conductive palladium and power it on to complete the table processing.

[0029] Invention point:

[0030] 1. It solves the problem that there are no process holes for mounting the slender rod ammeter, and the contact marks on the two end surfaces are large and need to be repaired later. The double-hook locking clamp and the single-hook locking clamp of the utility model realize the self-locking mounting operation of the slender rod parts by point contact automatic locking mode.

[0031] 2. In order to ensure that the slender rod parts are stably and securely clamped and the point contact locking clamping method is adopted, the double hook and single hook locking clamps are tilted at about 45° so that the locking tension with the slender rod parts expands at a certain angle, which can reduce the contact area and prevent the slender rod from slipping and falling off, ensuring that the slender rod is reliable and stable when powered on.

[0032] 3. In order to meet the clamping requirements of slender rods with different outer diameters, the locking clamp is in the shape of a "wave hook" (bending towards each other), and the slender rod is clamped at the bend to achieve automatic locking function during the installation process. The locking tension can be automatically adjusted according to the outer diameter of the slender rod to clamp the parts securely with self-locking.

[0033] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. A self-locking clamping fixture for a slender rod used for surface treatment, characterized in that: The conductive tooling body is provided with a locking structure, wherein the locking structure comprises two locking plates arranged on the same horizontal plane, wherein a single hook locking clip is provided at the end of one locking plate, and a double hook locking clip is provided at the end of the other locking plate, wherein the double hooks of the double hook locking clip are distributed up and down, and there is a gap between the double hooks of the double hook locking clip, and the gap between the double hooks of the single hook locking clip and the double hook locking clip corresponds to each other, and the single hook locking clip and the double hook locking clip are bent toward each other into an arc shape; When the two locking plates are compressed and deformed towards each other, the single hook locking clamp and the double hook locking clamp are cross-displaced, and an elastic clamping space is formed between the arc-shaped parts of the single hook locking clamp and the double hook locking clamp, and the elastic clamping space is used for adaptively clamping the slender rod.

2. A self-locking clamping fixture for a slender rod for surface treatment according to claim 1, characterized in that: The single hook lock clamp and the double hook lock clamp are in an inclined state.

3. The self-locking clamping fixture for a slender rod for surface treatment according to claim 1, characterized in that: The conductive tooling body and locking structure are both made of titanium alloy.

4. The self-locking clamping fixture for a slender rod for surface treatment according to claim 1, characterized in that: The conductive tooling body and locking structure are made of aluminum alloy.

5. The self-locking clamping fixture for a slender rod for surface treatment according to claim 1, characterized in that: The conductive tooling body is a rectangular frame structure, and a plurality of locking structures are arranged on the conductive tooling body, and the plurality of locking structures are distributed in a matrix.

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