Automatic polishing machine for headrest rod

Abstract

The utility model relates to the technical field of headrest rod polishing, in particular to an automatic headrest rod polishing machine which comprises a rack, and a clamping mechanism and a polishing mechanism are arranged on the rack. The clamping mechanism comprises a movable frame which is arranged on the machine frame and can be pushed, a rotatable rotating frame is arranged on the movable frame, a mounting frame which can move front and back is arranged on the rotating frame, a limiting plate is fixed to the mounting frame, a plurality of sets of limiting grooves are formed in the limiting plate, a U-shaped base which can move left and right is arranged on the mounting frame, and the U-shaped base is fixedly connected with the rotating frame. A pair of clamping plates is hinged into the U-shaped seat, a supporting seat is hinged to the middle of each clamping plate, and the other side of each supporting seat is hinged to the mounting frame. According to the automatic polishing device for the headrest rod, after the headrest rod is manually placed on the limiting plate, the clamping plate is used for stably clamping the headrest rod in the limiting groove, the headrest rod is not prone to deviation in the polishing process, then the rod part of the headrest rod extends into the position between the pair of polishing belts, and automatic polishing treatment is conducted on the rod part of the headrest rod through the polishing belts.

Description

Technical Field

[0001] This utility model relates to the field of headrest rod polishing technology, specifically an automatic headrest rod polishing machine. Background Technology

[0002] The headrest rod consists of two metal rods (mostly U-shaped or independent) inserted into the seat back to fix the headrest and allow for height adjustment. During the production process, in order to remove rust, oxide layer or scratches from the surface of the headrest rod and restore the metallic luster, it needs to be polished.

[0003] When polishing existing headrest rods, it is usually done manually by holding the rod by hand and bringing the outer surface of the headrest rod into contact with a high-speed rotating polishing wheel. The friction is used to remove the oxide layer, scratches, or burrs to achieve a smooth and shiny finish.

[0004] However, manual hand-held operation has many unstable factors, such as slight hand tremors, uneven force application, or angle deviation, which can easily lead to inconsistent contact pressure between the polishing wheel and the headrest bar. This may cause the contact trajectory between the polishing wheel and the bar to deviate from the ideal circumference, resulting in an irregular outer circle profile of the bar and affecting the smoothness of assembly. Based on this, an automatic headrest bar polishing machine is proposed to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an automatic polishing machine for headrest rods. It automates the polishing of both ends of the headrest rod, resulting in more uniform polishing and a more regular outer contour. Furthermore, it can automatically switch the ends of the headrest rod to be polished, eliminating the need for manual clamping and improving efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic polishing machine for headrest rods, comprising:

[0007] The frame is equipped with a clamping mechanism and a polishing mechanism. After the headrest rod is clamped by the clamping mechanism, its surface can be uniformly polished by the polishing mechanism to achieve a better polishing effect.

[0008] The clamping mechanism includes a movable frame mounted on a machine frame and capable of being pushed forward. A rotatable rotating frame is mounted on the movable frame, and a mounting frame that can move back and forth is mounted on the rotating frame. A limiting plate is fixed on the mounting frame, and the limiting plate has multiple sets of limiting grooves. A U-shaped seat that can move left and right is mounted on the mounting frame. A pair of clamping plates are hinged inside the U-shaped seat, and a support seat is hinged to the middle of the clamping plates. The other side of the support seat is hinged to the mounting frame. A headrest rod can be placed in the limiting groove. When the U-shaped seat moves to the right, the other side of the clamping plate will abut the headrest rod against the limiting groove, facilitating polishing and improving the stability of the polishing process.

[0009] Furthermore, a limiting rail is fixed on the frame, and a limiting slider is fixed on the bottom surface of the mobile frame and slidably disposed with the limiting rail. Under the guidance of the limiting slider and the limiting rail, the mobile frame is more stable when moving left and right.

[0010] Furthermore, a drive motor is fixed on the movable frame, and the output end of the drive motor is fixed to the rotating frame. The output shaft of the drive motor drives the rotating frame to rotate, and the clamped headrest bar can also rotate accordingly, so that the end of the headrest bar is polished more evenly.

[0011] Furthermore, the rotating frame is fixed with front and rear linear modules, and the output shaft of the front and rear linear modules is fixed to the mounting frame, which can realize the switching of the headrest rod. After polishing the surface of one rod evenly, it can automatically switch to the other rod for polishing.

[0012] Furthermore, a clamping cylinder is fixed on the mounting bracket, and the output shaft of the clamping cylinder is fixed to the U-shaped seat, enabling the clamping cylinder to move the U-shaped seat left and right.

[0013] Furthermore, the polishing mechanism includes two sets of polishing motors mounted on a frame. The output shaft of the polishing motor is fixed with a drive wheel, and a pair of driven wheels are also mounted on the frame. A polishing belt is driven around the outer periphery of the drive wheel and the corresponding driven wheel. The output shaft of the polishing motor can drive the drive wheel to rotate. Under the transmission action of the driven wheel, the polishing belt is driven, thus polishing the surface of the headrest bar.

[0014] Furthermore, a pair of extrusion cylinders are provided on the frame, and the output shaft of the extrusion cylinder is fixed to an extrusion frame. The driven wheel is rotatably disposed inside the extrusion frame via a rotating shaft, which can tension the polishing belt, making the polishing effect of the polishing belt better and preventing it from easily detaching from the outer periphery of the driven wheel.

[0015] Furthermore, a mounting slide rail is fixed on the frame, and a mounting slider that is slidably connected to the mounting slide rail is fixed at the bottom of the polishing motor. Under the guidance of the mounting slider and the mounting slide rail, the polishing motor has greater stability when adjusting its position.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] This automatic headrest bar polishing machine allows for manual placement of the headrest bar onto a limiting plate, followed by clamping to securely hold the bar within the limiting groove. This design minimizes headrest bar displacement during polishing, resulting in improved stability. The headrest bar is then automatically polished by inserting its shaft between a pair of polishing belts. The shaft can also rotate, ensuring a more uniform polish. Furthermore, a front and rear linear module allows for repositioning of the headrest bar. After polishing one end, the machine automatically polishes the other end without re-clamping. The highly automated process effectively saves manpower and significantly improves the polishing efficiency of the headrest bar. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the clamping mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the polishing mechanism of this utility model;

[0021] Figure 4 This is a side view of the polishing mechanism of this utility model.

[0022] In the diagram: 1. Frame; 2. Moving frame; 3. Rotating frame; 4. Mounting frame; 5. Limiting plate; 6. Limiting groove; 7. U-shaped seat; 8. Clamping plate; 9. Support seat; 10. Limiting rail; 11. Limiting slider; 12. Drive motor; 13. Front and rear linear modules; 14. Clamping cylinder; 15. Polishing motor; 16. Driving wheel; 17. Driven wheel; 18. Polishing belt; 19. Extrusion cylinder; 20. Extrusion frame; 21. Mounting slide rail; 22. Mounting slider. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4 The automatic polishing machine for headrest bars in this embodiment includes a frame 1. The frame 1 is equipped with a clamping mechanism and a polishing mechanism. After the headrest bar is clamped by the clamping mechanism, its surface can be uniformly polished by the polishing mechanism to achieve a better polishing effect.

[0025] As a preferred embodiment, such as Figure 2As shown, the clamping mechanism includes a movable frame 2 mounted on the frame 1 and capable of being pushed forward. The movable frame 2 is equipped with a rotatable rotating frame 3, and the rotating frame 3 is equipped with a mounting frame 4 that can move back and forth. A limiting plate 5 is fixed on the mounting frame 4, and the limiting plate 5 has three sets of limiting grooves 6. The headrest rod can be placed in the limiting grooves 6 for initial limiting. The mounting frame 4 is equipped with a U-shaped seat 7 that can move left and right. A pair of clamping plates 8 are hinged in the U-shaped seat 7, and a support seat 9 is hinged in the middle of the clamping plate 8. The other side of the support seat 9 is hinged to the mounting frame 4. When the U-shaped seat 7 moves to the right, the other side of the clamping plate 8 will abut the headrest rod in the limiting groove 6, which facilitates polishing and makes the polishing process more stable.

[0026] The movable frame 2 can be connected to an external drive source, which can be a horizontally set linear module or a horizontally set cylinder. By driving the movable frame 2 to move left and right, the headrest rod moves left and right to achieve polishing. In addition, a limit rail 10 is fixed on the frame 1. A limit slider 11 is fixed on the bottom surface of the movable frame 2 and is slidably set with the limit rail 10. Under the guidance of the limit slider 11 and the limit rail 10, the movable frame 2 has stronger stability when moving left and right.

[0027] The movable frame 2 is equipped with a drive motor 12, the output end of which is fixed to the rotating frame 3. By starting the drive motor 12, the output shaft of the drive motor 12 drives the rotating frame 3 to rotate, and the headrest bar being held can also rotate accordingly, so that the end of the headrest bar is polished more evenly.

[0028] Meanwhile, a front and rear linear module 13 is fixed on the rotating frame 3. The output shaft of the front and rear linear module 13 is fixed to the mounting frame 4. When the front and rear linear module 13 is started, the output end of the front and rear linear module 13 can drive the mounting frame 4 to perform front and rear linear movement, which can realize the switching of the headrest rod. After polishing the surface of one rod evenly, it can automatically switch to the other rod for polishing.

[0029] Furthermore, a clamping cylinder 14 is fixed on the mounting bracket 4. The output shaft of the clamping cylinder 14 is fixed to the U-shaped seat 7. When the clamping cylinder 14 is activated, the output shaft of the clamping cylinder 14 can drive the U-shaped seat 7 to move linearly left and right. When the clamping cylinder 14 is pushed out, the U-shaped seat 7 moves to the right, so that the far ends of the pair of clamping plates 8 move closer to the limiting plate 5 until the headrest rod is clamped in the limiting groove 6, and then polishing can be performed. When the clamping cylinder 14 is retracted, the U-shaped seat 7 moves to the left, so that the far ends of the pair of clamping plates 8 move away from the limiting plate 5, and the polished headrest rod can be taken out from the limiting groove 6.

[0030] As a preferred embodiment, such as Figure 3As shown, the polishing mechanism includes two sets of polishing motors 15 mounted on the frame 1. The output shaft of the polishing motor 15 is fixed with a drive wheel 16. A pair of driven wheels 17 are also mounted on the frame 1. A polishing belt 18 is driven around the drive wheel 16 and the corresponding driven wheel 17. By starting the polishing motor 15, the output shaft of the polishing motor 15 can drive the drive wheel 16 to rotate. Under the transmission action of the driven wheel 17, the polishing belt 18 is driven, and the surface of the headrest bar can be polished.

[0031] To ensure that the polishing belt 18 is taut, a pair of extrusion cylinders 19 are provided on the frame 1. The output shaft of the extrusion cylinder 19 is fixed to the extrusion frame 20. The driven wheel 17 is rotatably mounted inside the extrusion frame 20 via a rotating shaft. When the extrusion cylinder 19 pushes out, the extrusion frame 20 drives the driven wheel 17 to move upward, thereby achieving tension of the polishing belt 18, which makes the polishing effect of the polishing belt 18 better and less likely to detach from the outer periphery of the driven wheel 17.

[0032] The polishing motor 15 can also be connected to an external drive source, which can be a linear module set in front and behind or a cylinder set in front and behind. It can be used to adjust the distance between a pair of polishing motors 15, so that the headrest rod can be inserted between a pair of polishing belts 18. The frame 1 is fixed with a mounting slide rail 21, and the bottom of the polishing motor 15 is fixed with a mounting slider 22 that is slidably connected to the mounting slide rail 21. Under the guidance of the mounting slider 22 and the mounting slide rail 21, the polishing motor 15 has stronger stability when adjusting its position.

[0033] Since the polishing motor 15 is adjustable, the extrusion cylinder 19 is also slidably connected to the frame 1, such as... Figure 4 As shown, the mounting plate of the polishing motor 15 and the mounting plate of the extrusion cylinder 19 are fixedly connected by a connecting plate. When the polishing motor 15 moves, the extrusion cylinder 19 can move simultaneously with it. At the same time, there is a slider on the bottom surface of the mounting plate of the extrusion cylinder 19, and there is a slide groove at the corresponding position of the frame 1 that is slidably connected to the slider. Under the guidance of the slider and the slide groove, the stability of the extrusion cylinder 19 when it moves is also better.

[0034] In summary, when using this utility model, the headrest rod is first manually placed into the multiple sets of limiting grooves 6 of the limiting plate 5 for initial limiting. Then, the clamping cylinder 14 is activated, the clamping cylinder 14 is pushed out, and the U-shaped seat 7 moves to the right, so that the far ends of the pair of clamping plates 8 move closer to the limiting plate 5 until the headrest rod is clamped in the limiting groove 6, thus completing the clamping work of the headrest rod.

[0035] Then, by starting the polishing motor 15, the output shaft of the polishing motor 15 can drive the drive wheel 16 to rotate. Under the transmission action of the driven wheel 17, the polishing belt 18 is driven. Then, by moving the moving frame 2 to the right, one of the headrest rods is sent between a pair of polishing belts 18 for polishing. At the same time, by starting the drive motor 12, the output shaft of the drive motor 12 drives the rotating frame 3 to rotate. The rod located between a pair of polishing belts 18 can also rotate, polishing its outer circumference more evenly. After one rod is polished, the moving frame 2 retracts. The headrest rod can be moved by the front and rear linear module 13 to align the other rod between a pair of polishing belts 18. The moving frame 2 advances again, sending the rod between a pair of polishing belts 18 for rotational polishing.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] 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. An automatic polishing machine for headrest rods, characterized in that, include: A frame (1) is provided with a clamping mechanism and a polishing mechanism; The clamping mechanism includes a movable frame (2) mounted on a frame (1) and capable of being pushed forward. The movable frame (2) is provided with a rotatable rotating frame (3). The rotating frame (3) is provided with a mounting frame (4) that can move back and forth. A limiting plate (5) is fixed on the mounting frame (4). The limiting plate (5) has multiple sets of limiting grooves (6). A U-shaped seat (7) that can move left and right is provided on the mounting frame (4). A pair of clamping plates (8) are hinged inside the U-shaped seat (7). A support seat (9) is hinged to the middle of the clamping plate (8). The other side of the support seat (9) is hinged to the mounting frame (4).

2. The automatic polishing machine for headrest rods according to claim 1, characterized in that: The frame (1) is also fixed with a limiting rail (10), and the bottom surface of the movable frame (2) is fixed with a limiting slider (11) that slides with the limiting rail (10).

3. The automatic polishing machine for headrest rods according to claim 1, characterized in that: A drive motor (12) is fixed on the movable frame (2), and the output end of the drive motor (12) is fixed to the rotating frame (3).

4. The automatic polishing machine for headrest rods according to claim 1, characterized in that: The rotating frame (3) is fixed with front and rear linear modules (13), and the output shaft of the front and rear linear modules (13) is fixed with the mounting frame (4).

5. An automatic polishing machine for headrest rods according to claim 1, characterized in that: A clamping cylinder (14) is fixed on the mounting bracket (4), and the output shaft of the clamping cylinder (14) is fixed to the U-shaped seat (7).

6. The automatic polishing machine for headrest rods according to claim 1, characterized in that: The polishing mechanism includes two polishing motors (15) mounted on a frame (1). The output shaft of the polishing motor (15) is fixed with a drive wheel (16). A pair of driven wheels (17) are also mounted on the frame (1). The drive wheel (16) and the corresponding driven wheel (17) are connected by a polishing belt (18) on their outer periphery.

7. An automatic polishing machine for headrest rods according to claim 6, characterized in that: A pair of extrusion cylinders (19) are provided on the frame (1). The output shaft of the extrusion cylinder (19) is fixed to the extrusion frame (20). The driven wheel (17) is rotatably disposed in the extrusion frame (20) through a rotating shaft.

8. An automatic polishing machine for headrest rods according to claim 6, characterized in that: The frame (1) is fixed with a mounting slide rail (21), and the bottom of the polishing motor (15) is fixed with a mounting slider (22) that is slidably connected to the mounting slide rail (21).

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