A hanger for surface treatment of metal pieces

Abstract

The utility model relates to metal part processing technical field, and disclose a kind of hanger for metal piece surface treatment, the hanger for metal piece surface treatment, including mounting bracket, further include the hanger assembly for hanging metal piece, and the shot blasting cleaning mechanism for gathering and cleaning residual steel shot after shot blasting;Hanger assembly includes bearing hanger, the servo motor of driving hanger frame rotation, three groups of horizontal rods with adjusting assembly, the rotating shaft seat for the rotation of lifting appliance body, and the positioning bolt for locking rotating shaft seat to limit the rotation of lifting appliance body;Shot blasting cleaning mechanism is movably installed in hanger frame inner bottom portion. Shot blasting cleaning mechanism is designed with reversible square bar, scraper is scraped residual steel shot with hanger frame rotation directional, square bar can be reversed and stored, unfolded, without disassembly, steel shot can be guided to recovery port, greatly reduce manual cleaning step and time cost, avoid waste caused by residual steel shot dispersion difficult recovery, prevent steel shot accumulation from affecting equipment operation simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of metal parts processing technology, specifically to a hanger for surface treatment of metal parts. Background Technology

[0002] In the field of metal parts processing, metal parts surface treatment hangers are the core auxiliary equipment in shot blasting. They are mainly used to hang metal parts so that steel shot can impact the surface of the metal parts to achieve surface treatment effects such as rust removal and deburring. They are widely used in metal processing scenarios such as engineering machinery and automotive parts.

[0003] In the shot blasting process for metal parts, the current surface treatment fixtures for metal parts still have room for improvement in handling residual steel shot after shot blasting. Most fixtures are not equipped with a specific cleaning structure, resulting in scattered steel shot easily dispersing at the bottom of the shot blasting equipment or in the gaps of the fixture itself after the shot blasting operation. This requires manual cleaning and collection, resulting in low overall recovery efficiency. Moreover, even if some fixtures have simple steel shot cleaning components, they are mostly fixed installation structures. The components must be disassembled before steel shot can be collected, making the operation cumbersome and further increasing the workload and time cost for maintenance personnel. Therefore, there is an urgent need to develop a surface treatment fixture for metal parts to solve these practical problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a hanger for surface treatment of metal parts, solving the technical problem that hangers in shot blasting processes often lack a steel shot cleaning structure, leading to inefficient manual recycling.

[0005] To achieve the above objectives, this utility model provides a surface treatment fixture for metal parts through the following technical solution: a mounting frame, a fixture assembly for hanging metal parts, and a shot blasting cleaning mechanism for collecting and cleaning residual steel shot after shot blasting.

[0006] The mounting bracket assembly includes a support bracket frame, a servo motor for driving the bracket frame to rotate, three sets of crossbars with adjustment components, a pivot seat for the self-rotation of the mounting bracket body, and a positioning bolt for locking the pivot seat to limit the rotation of the mounting bracket body.

[0007] The shot blasting cleaning mechanism is movably installed at the bottom of the rack. The mechanism includes a storage component that is rotatably located at the bottom of the rack. A square rod is fixed to one side of the storage component. Two sets of housings that penetrate the rack are fixed to one side of the square rod. A spring is fixed inside the housing. The output end of the spring is fixed to a connecting rod that penetrates the square rod. A scraper for cleaning residual shot is fixed to one end of the connecting rod.

[0008] Preferably, the storage assembly includes a shaft that is rotatably mounted through the bottom of the mounting frame, and a rotating seat located on the inner side of the bottom of the mounting frame is fixed to the outside of the shaft. Threaded grooves are provided at both ends of the shaft, and threaded sleeves for abutting against the outside of the mounting frame to limit the rotation seat are threadedly installed on the outside of the threaded grooves.

[0009] Preferably, the adjustment component includes a groove formed on the outer surface of the hanger frame, a movable seat adapted to the hanger frame is slidably installed on the outer side of the groove, a threaded bolt is installed on the front of the movable seat, and the outer side of the movable seat is fixedly connected to one end of the crossbar.

[0010] Preferably, the servo motor is fixed to the top center of the mounting frame, and its output end passes through the top of the mounting frame and is connected to the top of the hanger frame via a transmission connection. The three sets of crossbars are arranged radially at equal intervals with the hanger frame axis as the center. The rotating shaft seat is fixed to the top of the crossbar, and the bottom end of the rotating shaft seat is connected to the top of the hanger body via a support rod.

[0011] Preferably, the inner wall of the lifting device body that contacts the metal part is provided with an installation groove, and a polyurethane elastic bushing is fixed in the installation groove by epoxy structural adhesive, and the inner surface of the polyurethane elastic bushing is provided with anti-slip texture.

[0012] Preferably, the crossbar has a hollow tubular structure with a wall thickness of 3-5mm. The hollow structure is used to reduce the overall weight of the hanging assembly.

[0013] This utility model provides a hanger for surface treatment of metal parts. Compared with the prior art, it has the following advantages.

[0014] 1. The shot blasting mechanism is equipped with a flip-up square bar design. The scraper rotates with the hanger to scrape away residual steel shot in a directional manner. The square bar can be flipped to store and unfold, guiding the steel shot to the recycling port without disassembly. This greatly reduces manual cleaning steps and time costs, avoids waste caused by the dispersion and difficulty in recycling residual steel shot, and prevents steel shot accumulation from affecting equipment operation. It also improves the steel shot recycling rate and the convenience of shot blasting equipment operation and maintenance.

[0015] 2. The adjustable assembly is combined with a self-rotating hanger. The vertical spacing of the horizontal bar along the sliding groove of the movable seat is adjusted to adapt to metal parts of different sizes. The rotating shaft seat realizes the self-rotation of the hanger and the revolution of the hanger to eliminate the blind zone of shot blasting. The polyurethane elastic bushing inside the hanger buffers the impact of steel shot, avoiding dents and slippage on the workpiece surface. It solves the problems of poor adaptability, uneven shot blasting and workpiece damage of traditional hangers, and improves the versatility of the hanger and the quality of shot blasting. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the appearance of the present utility model;

[0017] Figure 2 This is a partial cross-sectional schematic diagram of the present invention;

[0018] Figure 3 This is a partial schematic diagram of the hanging assembly of this utility model;

[0019] Figure 4 This is a partially enlarged schematic diagram of point A in this utility model;

[0020] Figure 5 This is a partial schematic diagram of the shot blasting cleaning mechanism of this utility model.

[0021] In the diagram: 1. Mounting frame; 2. Hanger assembly; 201. Servo motor; 202. Hanger frame; 2021. Slide rail; 2022. Moving seat; 203. Crossbar; 204. Rotary shaft seat; 205. Lifter body; 206. Polyurethane elastic bushing; 207. Positioning bolt; 3. Shot blasting cleaning mechanism; 301. Storage assembly; 3011. Rotating seat; 3012. Shaft; 3013. Threaded sleeve; 302. Square rod; 303. Housing; 304. Spring; 305. Connecting rod; 306. Scraper. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] First implementation method:

[0024] refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 A surface treatment fixture for metal parts includes a mounting frame 1, a fixture assembly 2 for mounting metal parts, and a shot blasting cleaning mechanism 3 for collecting and cleaning residual steel shot after shot blasting.

[0025] The hanging assembly 2 includes a support hanging frame 202, a servo motor 201 for driving the hanging frame 202 to rotate, three sets of crossbars 203 with adjustment components, a pivot seat 204 for the lifting body 205 to rotate, and a positioning bolt 207 for locking the pivot seat 204 to limit the rotation of the lifting body 205.

[0026] A shot blasting cleaning mechanism 3 is movably installed at the bottom of the rack 202. The mechanism 3 includes a storage component 301 rotatably disposed at the bottom of the rack 202. A square rod 302 is fixedly connected to one side of the storage component 301. Two sets of housings 303 are fixedly connected to one side of the square rod 302, penetrating the rack 202. A spring 304 is fixedly connected inside the housing 303. A connecting rod 305 is fixedly connected to the output end of the spring 304, penetrating the square rod 302. A scraper 306 for cleaning residual shot is fixedly connected to one end of the connecting rod 305.

[0027] The storage assembly 301 includes a shaft 3012 that is rotatably mounted through the bottom of the mounting frame 1. A rotating seat 3011 located on the inner side of the bottom of the mounting frame 1 is fixed to the outside of the shaft 3012. Threaded grooves are provided at both ends of the shaft 3012. A threaded sleeve 3013 is threadedly installed on the outside of the threaded groove to abut against the outside of the mounting frame 1 to limit the rotation seat 3011.

[0028] Working principle: First, the mounting frame 1 is fixedly installed on the suspension position of the shot blasting equipment, and the metal parts are hung and fixed by the hanger body 205 in the hanger assembly 2;

[0029] The operator first rotates the threaded sleeve 3013 in the opposite direction to move it away from the outside of the mounting frame 1 according to the position of the material collection area at the bottom of the shot blasting equipment, thereby releasing the limit on the rotating seat 3011. Then, the operator pushes the square rod 302 so that the square rod 302 rotates around the shaft 3012 as the axis of rotation, driving the rotating seat 3011 to rotate along the inner side of the bottom end of the mounting frame 1 until the square rod 302 extends out from the inside of the hanger 202 and flips to a horizontal state.

[0030] At this time, the spring 304 in the inner shell 303 of the square rod 302 is no longer compressed. In the initial state, when the square rod 302 is stored in the hanger 202, the spring 304 is squeezed by the connecting rod 305 and is in a compressed state. The spring 304 pushes the connecting rod 305 to slide along the inside of the square rod 302 through its own elastic reset, and finally drives the scraper 306 to closely adhere to the bottom material collection area surface of the shot blasting equipment.

[0031] The servo motor 201 is started, and the output end of the servo motor 201 drives the hanger frame 202 to rotate around its own axis. The rotating hanger frame 202 synchronously drives the hanger body 205 on the crossbar 203 and the metal parts on it to rotate, so that the steel shot sprayed by the shot blasting equipment can evenly impact the surface of the metal parts, realizing the shot blasting surface treatment functions such as rust removal and deburring of the metal parts. At the same time, during the rotation of the hanger frame 202, the square bar 302 remains horizontal, and the scraper 306 moves synchronously along the surface of the material collection area with the rotation of the hanger frame 202, and performs directional scraping and collection of the steel shot scattered at the bottom of the shot blasting equipment.

[0032] After the shot blasting operation is completed, the operator pushes the square rod 302 towards the hanger 202, causing the square rod 302 to rotate in the opposite direction around the shaft 3012 to the inside of the hanger 202. During this process, the scraper 306 moves with the square rod 302 and is abutted by the inner wall of the hanger 202, pushing the connecting rod 305 to slide into the housing 303, compressing the spring 304 inside the housing 303, which in turn drives the scraper 306 to retract and reset. Finally, the threaded sleeve 3013 is rotated in the forward direction, causing the threaded sleeve 3013 to abut against the outside of the mounting bracket 1, locking the position of the rotating seat 3011, and completing the reset of the shot blasting cleaning mechanism 3.

[0033] The shot blasting cleaning mechanism 3 can automatically collect and scrape away residual steel shot after shot blasting, which can effectively prevent residual steel shot from accumulating at the bottom of the shot blasting equipment, causing steel shot to be scattered and difficult to recover during subsequent shot blasting operations, resulting in waste of steel shot.

[0034] By using scraper 306 to scrape the material in the bottom collection area of ​​the equipment in a directional manner, and with the flip-up design of square rod 302, residual steel shot can be accurately guided to the steel shot recycling port of the equipment, which greatly reduces the operation steps and time costs of manual cleaning and significantly improves the recycling efficiency of steel shot.

[0035] Second implementation method:

[0036] In actual shot blasting operations, if the size difference of the metal parts is large, the spacing of the crossbars fixed by the traditional hanger cannot be adapted, which can easily lead to collisions of the metal parts. At the same time, if the hanger cannot flexibly adjust its rotation state, it will also affect the uniformity of shot blasting on the surface of the metal parts. Therefore, this device is also designed with an adjustment component, the structure and working principle of which are as follows.

[0037] refer to Figure 3 In the second embodiment of this utility model, the adjustment component includes a slide groove 2021 formed on the outer surface of the hanger 202, a movable seat 2022 adapted to the hanger 202 is slidably installed on the outside of the slide groove 2021, a threaded bolt is installed on the front of the movable seat 2022, and the outside of the movable seat 2022 is fixedly connected to one end of the crossbar 203.

[0038] The servo motor 201 is fixed to the top center of the mounting frame 1, and its output end passes through the top of the mounting frame 1 and is connected to the top of the hanger frame 202. The three sets of crossbars 203 are arranged radially at equal intervals with the axis of the hanger frame 202 as the center. The rotating shaft seat 204 is fixed to the top of the crossbar 203, and the bottom end of the rotating shaft seat 204 is connected to the top of the hanger body 205 through the support rod.

[0039] The inner wall of the lifting device body 205 that contacts the metal parts has an installation groove. The polyurethane elastic bushing 206 is fixed in the installation groove by epoxy structural adhesive. The inner surface of the polyurethane elastic bushing 206 has anti-slip texture. The crossbar 203 has a hollow tubular structure with a wall thickness of 3-5mm. The hollow structure is used to reduce the overall weight of the lifting device assembly 2.

[0040] Working principle: The operator first loosens the bolts on the front of the moving seat 2022 according to the height of the metal part to be processed, and then pulls the moving seat 2022 to move vertically along the slide 2021 on the outside of the hanger 202. This adjusts the vertical distance between the multiple sets of crossbars 203. After the distance is adapted to the size of the metal part, the bolts are tightened in the forward direction to fix the moving seat 2022 to the hanger 202.

[0041] Next, rotate the positioning bolt 207 in the opposite direction to release the locking of the positioning bolt 207 to the rotating shaft seat 204, so that the rotating shaft seat 204 can rotate freely and hang the metal part into the lifting device body 205. At this time, the polyurethane elastic bushing 206 on the inner side of the lifting device body 205 is in contact with the surface of the metal part. The elastic bushing can buffer the impact of steel shot on the metal part during shot blasting and avoid dents on the surface of the metal part. At the same time, the anti-slip texture on the inner surface of the bushing can prevent the metal part from slipping during rotation.

[0042] Start the servo motor 201, which drives the hanger frame 202 to rotate around the axis of the mounting frame 1, realizing the revolution of the crossbar 203, the hanger body 205 and the metal parts. During the shot blasting process, the steel shot will generate a reaction force when it impacts the surface of the metal parts, which will drive the hanger body 205 to rotate around the support rod at the bottom of the rotating shaft seat 204, realizing the rotation of the metal parts.

[0043] By combining revolution and rotation, it is ensured that there are no blind spots on the surface of the metal parts, achieving all-round uniform shot blasting. At the same time, the hollow tubular crossbar 203 can reduce the overall weight of the hanger assembly 2, reduce the operating load of the servo motor 201, and extend the service life of the motor. This adjustment component effectively solves the problems of uneven shot blasting caused by the fixed crossbar spacing not being able to adapt to metal parts of different sizes and the inflexible rotation of the hanger, thus improving the versatility of the hanger and the shot blasting effect.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mounting bracket for surface treatment of metal parts, comprising a mounting frame (1), characterized in that: It also includes a hanger assembly (2) for mounting metal parts, and a shot blasting cleaning mechanism (3) for collecting and cleaning up residual steel shot after shot blasting. The mounting bracket assembly (2) includes a support bracket (202), a servo motor (201) for driving the bracket (202) to rotate, three sets of crossbars (203) with adjustment components, a pivot seat (204) for the lifting body (205) to rotate, and a positioning bolt (207) for locking the pivot seat (204) to limit the rotation of the lifting body (205). The shot blasting cleaning mechanism (3) is movably installed at the bottom of the rack (202). The mechanism (3) includes a storage component (301) rotatably located at the bottom of the rack (202). A square rod (302) is fixed to one side of the storage component (301). Two sets of housings (303) penetrating the rack (202) are fixed to one side of the square rod (302). A spring (304) is fixed inside the housing (303). A connecting rod (305) penetrating the square rod (302) is fixed to the output end of the spring (304). A scraper (306) for cleaning residual shot is fixed to one end of the connecting rod (305).

2. The surface treatment fixture for metal parts according to claim 1, characterized in that: The storage assembly (301) includes a shaft (3012) that is rotatably mounted through the bottom end of the mounting frame (1). A rotating seat (3011) located on the inner side of the bottom end of the mounting frame (1) is fixed to the outside of the shaft (3012). Threaded grooves are provided at both ends of the shaft (3012). A threaded sleeve (3013) for abutting against the outside of the mounting frame (1) to limit the rotation seat (3011) is threadedly installed on the outside of the threaded groove.

3. The surface treatment fixture for metal parts according to claim 1, characterized in that: The adjustment assembly includes a groove (2021) formed on the outer surface of the hanger (202), a movable seat (2022) adapted to the hanger (202) is slidably installed on the outside of the groove (2021), the movable seat (2022) is threaded with bolts on the front, and the outside of the movable seat (2022) is fixedly connected to one end of the crossbar (203).

4. The surface treatment fixture for metal parts according to claim 1, characterized in that: The servo motor (201) is fixed to the top center of the mounting frame (1), and its output end passes through the top of the mounting frame (1) and is connected to the top of the hanger frame (202) via transmission. The three sets of crossbars (203) are arranged radially at equal intervals with the axis of the hanger frame (202) as the center. The rotating shaft seat (204) is fixed to the top of the crossbar (203), and the bottom end of the rotating shaft seat (204) is connected to the top of the hanger body (205) via a support rod.

5. A surface treatment fixture for metal parts according to claim 4, characterized in that: The inner wall of the lifting device body (205) in contact with the metal parts is provided with an installation groove. The polyurethane elastic bushing (206) is fixed in the installation groove by epoxy structural adhesive, and the inner surface of the polyurethane elastic bushing (206) is provided with anti-slip texture.

6. A surface treatment fixture for metal parts according to claim 1, characterized in that: The crossbar (203) is a hollow tubular structure with a wall thickness of 3-5mm. The hollow structure is used to reduce the overall weight of the hanging assembly (2).

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