Gear phosphating tool

Abstract

The gear phosphating tool comprises a phosphating pool and a plurality of bearing frames, each bearing frame is composed of a plurality of supporting rods and four connecting rods, the supporting rods are connected between the connecting rods at equal intervals, a plurality of positioning rings are arranged on the upper surfaces of the supporting rods at equal intervals, a positioning groove is formed in the middle of each positioning ring, and the positioning grooves are communicated with the phosphating pool. A plurality of positioning rods are arranged on the lower surfaces of the supporting rods at equal intervals, the positioning rings and the positioning rods are arranged in a one-to-one up-and-down correspondence mode, the multiple supporting rods are placed in the phosphating pool layer by layer, and the bottom ends of the positioning rods of the supporting rods on the upper layer are inserted into the positioning grooves of the positioning rings of the supporting rods on the lower layer; and the bottom end of the positioning rod of the supporting rod at the bottommost layer is propped against the bottom surface of the phosphating pool. The gears to be phosphatized can be placed on the bearing frame one by one at intervals, so that the technical problems of phosphatization defects caused by stacking of the gears and tooth defects caused by collision are avoided.

Description

Technical Field

[0001] This utility model relates to the field of phosphating equipment technology, specifically to a gear phosphating treatment tool. Background Technology

[0002] Phosphating is a process involving chemical and electrochemical reactions to form a phosphate conversion film, known as a phosphate coating. Phosphating is a common method for treating automotive gears, primarily to protect the base metal and prevent corrosion; it also serves as a primer before painting, improving paint adhesion and corrosion resistance; and it lubricates during cold metal working processes to reduce friction. Therefore, for automotive gears, the phosphate coating formed by high-temperature manganese phosphating can improve the wear resistance and corrosion resistance of the gear surface, extending its service life. Current phosphating processes typically involve degreasing, cleaning, surface conditioning, phosphating, and rinsing. During phosphating, a large number of gears are often immersed together in a haphazard, stacked manner. This haphazard placement and stacking can lead to phosphating defects at points of contact where the gears cannot react, resulting in inconsistent phosphating even within the same batch and affecting product quality. In addition, the random stacking of gears in the phosphating bath causes them to collide with each other, which can easily lead to damage to the teeth of the gears and increase the rate of defective gears. Utility Model Content

[0003] The purpose of this utility model is to provide a gear phosphating treatment fixture, which can place the gears to be phosphated one by one on the support frame at intervals, avoiding the technical problems of phosphating defects and tooth damage caused by the gears being stacked together.

[0004] To achieve the above objectives, the present invention proposes the following technical solution:

[0005] A gear phosphating treatment fixture includes a phosphating tank and several support frames. Each support frame consists of several support rods and four connecting rods. The four connecting rods are connected end-to-end to form a square frame. Several support rods are equidistantly connected between two opposite connecting rods. Several positioning rings are equidistantly arranged on the upper surface of each support rod, and each positioning ring has a positioning groove in the middle. Several positioning rods are equidistantly arranged on the lower surface of each support rod, and the positioning rings and positioning rods are arranged vertically in correspondence. Several support rods are placed layer by layer in the phosphating tank, with the bottom end of the positioning rod of the upper layer of support rod inserted into the positioning groove of the positioning ring of the lower layer of support rod. The bottom end of the positioning rod of the bottom layer of support rod abuts against the bottom surface of the phosphating tank.

[0006] As a preferred embodiment of this utility model, several sets of guide rods are symmetrically arranged at opposite ends of the phosphating tank, and the bottom end of the guide rods is vertically connected to the bottom surface of the phosphating tank; two opposite connecting rods are provided with collars on their outer sides, and the collars are sleeved on the guide rods.

[0007] As a preferred embodiment of this utility model, a pair of lifting frames are movably arranged at opposite ends of the phosphating tank. Each lifting frame includes a bottom plate and a side plate that are vertically connected in an L-shape. The bottom plate is placed on the bottom surface of the phosphating tank, and the side plate is movably connected to the side wall of the phosphating tank. The bottom end of the guide rod is fixedly connected to the surface of the bottom plate, and the guide rod is parallel to the side plate.

[0008] As a preferred embodiment of this utility model, a guide channel is provided around the bottom surface of the phosphating tank, the width of the guide channel is adapted to the width of the bottom plate, and the bottom plate is placed in the guide channel.

[0009] As a preferred embodiment of this utility model, the top of the side plate is provided with several lifting rings.

[0010] As a preferred embodiment of this utility model, a lifting device is provided above the phosphating tank, and the bottom end of the lifting arm of the lifting device is detachably connected to the lifting ring.

[0011] As a preferred technical solution of this utility model, the side plate is provided with a number of protruding ribs on the surface near the side wall of the phosphating tank, and the inner side wall of the phosphating tank is provided with a number of limiting grooves, and the number of protruding ribs are movably engaged in the limiting grooves.

[0012] As a preferred embodiment of this utility model, a reinforcing rib is connected between two adjacent support rods of the same bearing frame.

[0013] As a preferred embodiment of this utility model, the bottom sidewall of the positioning ring is provided with several through holes.

[0014] In a preferred embodiment of this invention, both the support rod and the connecting rod are made of reinforcing steel, and the support rod and the connecting rod, as well as the connecting rod and the connecting rod, are welded together.

[0015] As can be seen from the above technical solution, the present invention provides a gear phosphating fixture, which includes a support frame for placing gears. The upper and lower surfaces of the support frame are respectively provided with several equidistantly distributed positioning rings and positioning rods. During phosphating, the gears can be fitted one by one onto the outside of the positioning rings via gear rings, and then the positioning rods of the upper support frame are inserted into the corresponding positioning slots below them, thereby fixing the gears on the support frame and preventing them from falling off during phosphating. This avoids phosphating surface defects caused by stacking when a large number of gears are phosphated together, ensuring a high degree of consistency in the phosphating quality of gears in the same batch. It also avoids tooth damage caused by collisions between gears.

[0016] It should be understood that all combinations of the foregoing concepts and the additional concepts described in more detail below can be considered as part of the utility model subject matter of this disclosure, provided that such concepts do not contradict each other.

[0017] The foregoing and other aspects, embodiments, and features of the present invention will be more fully understood from the following description in conjunction with the accompanying drawings. Other additional aspects of the present invention, such as features and / or beneficial effects of exemplary embodiments, will become apparent from the following description or may be learned through practice of specific embodiments according to the teachings of the present invention. Attached Figure Description

[0018] The accompanying drawings are not drawn to scale according to a true reference numeral. In the drawings, each identical or nearly identical component shown in the various figures can be denoted by the same reference numeral. For clarity, not every component is labeled in each figure. Embodiments of various aspects of the present invention will now be described by way of example and with reference to the accompanying drawings, wherein:

[0019] Figure 1 This is a top view of the tooling according to an embodiment of the present utility model;

[0020] Figure 2 This is a side view of the tooling according to an embodiment of the present utility model.

[0021] The meanings of the reference numerals in the figure are as follows:

[0022] 100-Phosphating tank; 101-Guide channel; 102-Limiting channel; 200-Support frame; 201-Support rod; 202-Connecting rod; 203-Positioning ring; 204-Positioning rod; 205-Collar ring; 206-Reinforcing rib; 300-Lifting frame; 301-Bottom plate; 302-Side plate; 303-Guide rod; 304-Lifting ring; 305-Protruding rib. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art to which this utility model pertains.

[0024] The terms "first," "second," and similar words used in this utility model patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, unless the context clearly indicates otherwise, the singular forms of "an," "a," or "the," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one. Terms such as "comprising" or "including" mean that the element or object preceding "comprising" encompasses the features, integrals, steps, operations, elements, and / or components listed following "comprising" or "including," and do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] This utility model provides a gear phosphating fixture to address the technical problem that, in conventional gear workpieces, a large number of gears are randomly placed and stacked in the phosphating bath during phosphating, which easily leads to phosphating surface defects and inconsistent phosphating quality within the same batch of gears.

[0026] like Figure 1 , Figure 2As shown, the gear phosphating fixture of this embodiment includes a phosphating tank 100 and several support frames 200. Each support frame 200 consists of several support rods 201 and four connecting rods 202. The four connecting rods 202 are connected end to end to form a square frame. Several support rods 201 are equidistantly connected between two opposite connecting rods 202. Several positioning rings 203 are equidistantly arranged on the upper surface of the support rods 201. The positioning rings 203 have a positioning function in the middle. The lower surface of the support rod 201 is provided with a plurality of positioning rods 204 at equal intervals, and the positioning rings 203 are arranged vertically corresponding to the positioning rods 204. The plurality of support rods 201 are placed layer by layer in the phosphating tank 100, with the bottom end of the positioning rod 204 of the upper layer of support rod 201 inserted into the positioning groove of the positioning ring of the lower layer of support rod 201, and the bottom end of the positioning rod of the bottom layer of support rod 201 abutting against the bottom surface of the phosphating tank 100. In specific implementation, the distance between two adjacent support rods 201 on the same support frame 200, and the distance between two adjacent positioning rings 203 on the same support rod 201 are determined according to the outer circumference of the gear; while the length of the positioning rod 204 is determined according to the thickness of the gear, so that when the gears are placed one by one on the support frame 200, a certain gap is reserved between adjacent gears to avoid collisions between them.

[0027] In a preferred embodiment of this utility model, a lifting frame 300 and a hoisting device (not shown in the figure) for lifting the multi-layer support frame 200 are also included. The lifting frame 300 includes a bottom plate 301 and a side plate 302 connected vertically in an L-shape. The bottom plate 301 is placed on the bottom surface of the phosphating tank 100, and the side plate 302 is movably connected to the side wall of the phosphating tank 100. A pair of lifting frames 300 are provided, symmetrically arranged at opposite ends within the phosphating tank 100, corresponding to the collars 205 located at opposite ends of the support frame 200.

[0028] Several sets of guide rods 303 are provided on the surface of the base plate 301. The bottom end of the guide rod 303 is vertically connected to the surface of the base plate 301, so the guide rod 303 is also parallel to the side wall, which facilitates the insertion and removal of the collar 205. The outer sides of the two opposing connecting rods 202 are provided with collars 205. The collars 205 are sleeved on the guide rods 303. The cooperation between the collars 205 and the guide rods 303 makes it easy to position the support frame 200 and prevents it from shifting or misaligning during the phosphating process, which would cause the gear to disengage from the support frame 200. The bottom surface of the phosphating tank is provided with a guide channel 101 around its perimeter. The width of the guide channel 101 is adapted to the width of the bottom plate 301. The bottom plate 301 is placed in the guide channel 101. The guide channel 101 facilitates the positioning of the bottom plate 301 and also confines the bottom plate 301 within the guide channel 101. In addition, the guide channel 101 makes the bottom surface of the phosphating tank 100 have a stepped surface, which is conducive to the phosphating solution of the phosphating tank 100 being discharged into the guide channel 101 from the height difference and then quickly discharged and drained by the guide channel 101, thereby facilitating the replacement of the phosphating solution.

[0029] To facilitate the lifting of the lifting frame 300, several lifting rings 304 are provided at the top of the side plate 302. A lifting device is provided above the phosphating tank 100. The bottom end of the lifting arm of the lifting device is detachably connected to the lifting rings 304. After the hook at the end of the lifting arm is engaged with the lifting ring 304, the lifting frame 300 can be lifted from the phosphating tank 100 by the lifting action of the lifting device, along with several layers of support frames 200 hanging on the guide rod 303. The lifting device can be an existing crane, hoisting machine, overhead crane, or other equipment with lifting function, which is well known to those skilled in the art, and its specific structure and lifting principle will not be described in detail here.

[0030] To ensure the stability of the lifting frame 300 during the lifting process from the phosphating tank 100, the side plate 302 is provided with several protruding ribs 305 on the surface near the side wall of the phosphating tank 100, and several limiting grooves 102 are provided on the inner side wall of the phosphating tank 100. The protruding ribs 305 are movably engaged in the limiting grooves 102. The cooperation between the protruding ribs and the limiting grooves 102 ensures that the lifting frame remains vertical during the lifting process from the phosphating tank 100, preventing the lifting frame 300 from shaking and increasing the difficulty of lifting.

[0031] A reinforcing rib 206 connects two adjacent support rods of the same support frame 200 to strengthen the connection structure of the support frame 200. Several through holes (not shown in the figure) are provided on the bottom side wall of the positioning ring 203 to facilitate the discharge of phosphating solution from the positioning groove 101, thereby preventing liquid leakage. Both the support rod 201 and the connecting rod 202 are made of steel bars, and the support rod 201 and the connecting rod 202, as well as the connecting rod 202 itself, are welded together.

[0032] The working principle of this utility model is as follows: First, the gears are hung one by one on the positioning rings 203 of the support rods 201. Then, the support frames 200 are hung layer by layer on the guide rods 303 through the collars 205, ensuring that the bottom end of the positioning rod 204 of the upper layer is inserted into the corresponding positioning groove of the lower layer. Moreover, due to the weight of the gears, the support frame 200 of the upper layer can overcome the buoyancy of the phosphating solution and stably insert the positioning rod 204 into the positioning groove. At this time, the gears hung on the positioning rings 203 are restricted between the two support rods 200 with the positioning rod 204 as the axis, and there is no collision between adjacent gears. Then, the lifting frame 300 is placed into the phosphating tank 100 by the lifting device until the phosphating solution submerges the uppermost support frame 200. After the phosphating treatment is completed, the lifting frame 300 is lifted, and all the support frames 200 are lifted out of the phosphating solution. They are left to stand for a period of time until the phosphating solution on the surface of the gears is drained before proceeding to the next process.

[0033] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A gear phosphating treatment jig comprising a phosphating bath (100), characterized in that, The phosphating tank (100) is provided with a plurality of bearing frames (200), each of the bearing frames (200) is composed of a plurality of support rods (201) and four connecting rods (202), the four connecting rods (202) are sequentially connected to form a square frame, a plurality of support rods (201) are equidistantly connected between the opposite two connecting rods (202), the upper surface of the support rod (201) is equidistantly provided with a plurality of positioning rings (203), the middle of the positioning ring (203) is provided with a positioning groove, the lower surface of the support rod (201) is equidistantly provided with a plurality of positioning rods (204), and the positioning ring (203) and the positioning rod (204) are one-to-one and up-and-down corresponding arrangement, a plurality of support rods (201) are placed layer by layer in the phosphating tank (100), and the bottom end of the positioning rod (204) of the support rod (201) of the upper layer is inserted into the positioning groove of the positioning ring of the support rod (201) of the lower layer, and the bottom end of the positioning rod (204) of the support rod (201) of the bottom layer is in abutment with the bottom surface of the phosphating tank (100).

2. The gear phosphating process kit of claim 1, wherein, The opposite two ends of the phosphating tank (100) are provided with a plurality of groups of guide rods (303) symmetrically arranged, the bottom end of the guide rod (303) is vertically connected to the bottom surface of the phosphating tank (100); the outer side of the two oppositely arranged connecting rods (202) is provided with a sleeve ring (205), and the sleeve ring (205) is sleeved on the guide rod (303).

3. The gear phosphating process kit of claim 2, wherein, A pair of lifting frames (300) are movably arranged at the opposite two ends in the phosphating tank (100), the lifting frame (300) comprises a bottom plate (301) and a side plate (302) which are vertically connected in an L shape, the bottom plate (301) is arranged on the bottom surface of the phosphating tank (100), and the side plate (302) is movably connected to the side wall of the phosphating tank (100); the bottom end of the guide rod (303) is fixedly connected to the surface of the bottom plate (301), and the guide rod (303) is parallel to the side plate (302).

4. The gear phosphating process kit of claim 3, wherein, The bottom surface of the phosphating tank (100) is provided with a flow guide groove (101) around, the width of the flow guide groove (101) is adapted to the width of the bottom plate (301), and the bottom plate (301) is arranged in the flow guide groove (101).

5. The gear phosphating process kit of claim 3, wherein, The top end of the side plate (302) is provided with a plurality of lifting rings (304).

6. The gear phosphating process kit of claim 5, wherein, The upper side of the phosphating tank (100) is provided with a lifting device, and the bottom end of the lifting arm of the lifting device is detachably connected with the lifting ring (304).

7. The gear phosphating process kit of claim 3, wherein The surface of the side plate (302) close to the side wall of the phosphating tank (100) is provided with a plurality of convex ribs (305), and the inner side wall of the phosphating tank (100) is provided with a plurality of limiting grooves (102), and the plurality of convex ribs (305) are movably clamped in the limiting grooves (102) one by one.

8. The gear phosphating process kit of claim 1, wherein, The adjacent two support rods (201) of the same bearing frame (200) are connected with a reinforcing rib (206).

9. The gear phosphating process kit of claim 1, wherein, The bottom end of the side wall of the positioning ring (203) is provided with a plurality of through holes.

10. The gear phosphating process kit of claim 1, wherein, The support rod (201) and the connecting rod (202) are all reinforced steel, and the support rod (201) and the connecting rod (202) and the connecting rod (202) are welded together.

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