Polishing clamping device for hardware product machining

By designing a polishing clamping device for hardware processing, the motor drive and synchronous gear system are used to achieve rapid clamping and multiple polishing of metal short columns, which solves the problems of large clamping force and low efficiency of existing equipment and improves polishing efficiency and operational convenience.

CN120755785AInactive Publication Date: 2025-10-10DONGGUAN INZE IND
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Patent Information

Application Number
CN202511093186.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-06
Publication Date
2025-10-10
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing hardware polishing equipment requires the operator to exert great force when clamping the metal short column, resulting in low processing efficiency and high workload for the operator.

Method used

A polishing clamping device for hardware processing was designed, which included a clamping mechanism, a switching mechanism, and a polishing unit. The rotating seat and the swivel seat were driven by a motor to rotate intermittently. Combined with the synchronous gear system of the arc-shaped clamping plate and the clamping wheel, the metal short column could be quickly clamped and released, and continuous polishing could be performed through the cooperation of multiple polishing heads.

Benefits of technology

It achieves stable clamping of the metal short column, reduces manpower consumption, improves polishing efficiency, and ensures the continuity and efficiency of the polishing process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a polishing clamping device for hardware product machining, and relates to the field of hardware polishing, the polishing clamping device comprises a clamping mechanism mounted on a rotating seat, a supporting seat is arranged at the bottom of the rotating seat, and the clamping mechanism comprises outer rotating seats which are annularly arranged at the top of the rotating seat at equal intervals; and inner rotating seats corresponding to the outer rotating seats are arranged at the top of the rotating seat at equal intervals, positioning seats are arranged on the outer rotating seats and the inner rotating seats, initial positioning grooves are formed in the positioning seats, and metal short columns are placed in the initial positioning grooves. According to the polishing clamping device for hardware product machining, through mutual cooperation of the positioning base, the initial positioning groove, the arc-shaped clamping plate, the clamping wheel and the driving unit, a metal short column can be continuously and rapidly clamped and loosened in the polishing process, so that manpower is saved, the metal short column can be stably clamped, and the polishing efficiency is improved. And the overall polishing efficiency of the metal short column can be effectively improved, and the polishing work of the metal short column is facilitated.
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Description

Technical Field

[0001] The invention relates to a hardware polishing technology, in particular to a polishing clamping device for processing hardware products. Background Art

[0002] During the production and processing of hardware products, polishing is generally performed to improve surface smoothness and increase corrosion and wear resistance. Existing polishing equipment requires the operator to clamp the metal product to maintain a relatively stable state during the polishing process.

[0003] For common hardware products such as metal short columns, when they are polished and clamped, the operator needs to clamp them between two clamping seats by turning the operating screw, and then perform the polishing process. After the polishing of the upper half is completed, the screw needs to be turned again to loosen the clamping, and the direction needs to be changed to clamp them again, so that the polishing dead angle can be polished again. During the clamping process, in order to ensure the stability of the clamping of the metal short column, it is generally necessary to apply a large force to turn the operating screw to make the clamping of the two clamping seats tighter. This results in the operator having to expend a large amount of effort during the clamping and loosening processes, which leads to a decrease in the processing efficiency of the metal short column and a significant increase in the operator's workload over a long period of time. Summary of the Invention

[0004] The purpose of the present invention is to provide a polishing clamping device for hardware processing to solve the above-mentioned shortcomings in the prior art.

[0005] The top of the rotary table is provided with an outer cover which is fixed with a toothed plate and an inner cover which is fixed with a toothed plate so as to move the toothed plate downwards so as to move the toothed plate downwards so as to move the toothed plate downwards.

[0006] A switching mechanism is provided between the outer rotating seat and the outer rotating seat;

[0007] Two groups of polishing units are arranged above the rotating seat, and the positions of the two groups of polishing units correspond to the outer rotating seat and the inner rotating seat respectively.

[0008] Furthermore, the rotating seat, the outer rotating seat and the inner rotating seat are all driven by a motor, the motor drives the rotating seat to rotate intermittently, and the motor drives the outer rotating seat and the inner rotating seat to rotate continuously.

[0009] Furthermore, the central axis of the clamping wheel is arranged parallel to the central axis of the positioning seat.

[0010] Furthermore, the driving unit includes a synchronous gear rotatably connected to the inner side of the guide groove, the ends of the arc-shaped clamping plates on both sides are fixedly connected with synchronous racks, and the two synchronous racks are respectively engaged with the upper and lower ends of the synchronous gear. The top of the mounting block is fixedly installed with a first electric telescopic rod, and the telescopic end of the first electric telescopic rod is fixedly connected with a connecting plate. A straight groove corresponding to the connecting plate is opened on the top of the mounting block, and the connecting plate is slidably connected to the inner side of the straight groove, and the bottom of the connecting plate is fixedly connected to one of the synchronous racks.

[0011] Furthermore, the switching mechanism includes several lifting frames arranged on the top of the rotating seat, the lifting frames are arranged between the corresponding outer rotating seat and the inner rotating seat, the top of the rotating seat is provided with a vertical slot corresponding to the lifting frame, the lifting frame is slidably connected to the inner side of the vertical slot, and several second electric telescopic rods corresponding to the lifting frames are installed inside the rotating seat, the top of the telescopic end of the second electric telescopic rod is fixedly connected to the lifting frame, a support slot is provided inside the lifting frame, the inner side of the support slot is rotatably connected to a rotating plate, the rotating plate is connected to the inner wall of the support slot through a rotating shaft, and the rotating shaft is driven by a motor.

[0012] Furthermore, the polishing unit includes a bracket fixedly mounted on the outside of the support seat, a horizontal plate is mounted on the top of the bracket, a connecting seat is mounted on the bottom of the horizontal plate, a movable groove is opened at the bottom of the connecting seat, a movable block is slidably connected to the inner side surface of the movable groove, an adjusting screw is rotatably connected to the inner side surface of the movable groove, and the movable block is threadedly connected to the adjusting screw.

[0013] Furthermore, an extension arm is fixedly connected to the bottom of the moving block, a third electric telescopic rod is installed inside the extension arm, and the bottom of the telescopic end of the third electric telescopic rod is fixedly connected to a driving seat. The bottoms of the two groups of driving seats are respectively provided with a primary polishing head and a secondary polishing head, and the primary polishing head and the secondary polishing head are both driven by a motor. The surface of the driving seat is rectangular and symmetrically installed with multiple groups of guide rods. A guide groove corresponding to the guide rod is provided on the bottom surface of the extension arm, and the guide rod is slidably connected to the inner side surface of the guide groove.

[0014] Furthermore, the position of the primary polishing head corresponds to the outer rotating seat, and the position of the secondary polishing head corresponds to the inner rotating seat.

[0015] Furthermore, the outer rotating seat and the inner rotating seat are both provided with a plurality of threaded holes in a circular shape and at equal intervals, the positioning seat is provided with an entry groove corresponding to the threaded hole, the positioning seat is provided with a locking bolt, the end of the locking bolt passes through the entry groove and is threadedly connected to the threaded hole.

[0016] Furthermore, the rotating seat is provided with loading and unloading stations, a primary polishing station, a transfer station and a secondary polishing station in sequence in a clockwise direction.

[0017] Compared with the prior art, the polishing clamping device for hardware processing provided by the present invention has the following beneficial effects:

[0018] 1. The polishing clamping device for hardware processing can continue to quickly clamp and release the metal short column during the polishing process through the mutual cooperation between the positioning seat, the initial groove, the arc-shaped clamping plate, the clamping wheel, and the driving unit, thereby not only saving manpower and stably clamping the metal short column, but also effectively improving the overall polishing efficiency of the metal short column, which is beneficial to the polishing work of the metal short column.

[0019] 2. The polishing clamping device for hardware processing, through the inner rotating seat, outer rotating seat, switching mechanism, two sets of polishing units, as well as loading and unloading stations, primary polishing stations, transfer stations and secondary polishing stations, can continuously and fully polish the metal short columns during the polishing process, thereby making the polishing process of the metal short columns more convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of the structure of a rotating seat provided in an embodiment of the present invention;

[0023] Figure 3 The embodiment of the present invention provides Figure 2 A in the middle is an enlarged structural diagram;

[0024] Figure 4The schematic view of the arc-shaped clamping plate and the lifting frame connection structure provided by the embodiment of the present application is shown in the figure.

[0025] Figure 5 The schematic view of the partial section structure of the mounting block provided by the embodiment of the present application is shown in the figure.

[0026] Figure 6 The schematic view of the polishing unit structure provided by the embodiment of the present application is shown in the figure.

[0027] Figure 7 The schematic view of the structure of the positioning seat and the outer rotating seat in the separated state provided by the embodiment of the present application is shown in the figure.

[0028] Explanation of reference signs:

[0029] 1, rotating seat; 101, feeding and discharging station; 102, primary polishing station; 103, transfer station; 104, secondary polishing station; 105, supporting seat; 2, outer rotating seat; 21, inner rotating seat; 22, positioning seat; 23, primary positioning groove; 24, mounting block; 25, guide groove; 26, arc-shaped clamping plate; 27, clamping wheel; 3, synchronous gear; 31, synchronous rack; 32, first electric telescopic rod; 33, connecting plate; 4, lifting frame; 41, second electric telescopic rod; 42, supporting groove; 43, rotating plate; 5, support; 51, horizontal plate; 52, connecting seat; 53, moving groove; 54, adjusting screw rod; 55, extension arm; 56, third electric telescopic rod; 57, driving seat; 58, primary polishing head; 59, secondary polishing head; 510, guide rod; 511, guide groove; 512, moving block; 6, threaded hole; 61, entering groove; 62, locking bolt. DETAILED DESCRIPTION

[0030] In order to make the skilled in the art better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0031] Embodiment one:

[0032] Please refer to Figure 1-Figure 5, a polishing clamping device for processing hardware products, including a clamping mechanism installed on a rotating seat 1, a supporting seat 105 is provided at the bottom of the rotating seat 1, the clamping mechanism includes an outer rotating seat 2 equidistantly arranged on the top of the rotating seat 1 in a circular shape, and an inner rotating seat 21 corresponding to the outer rotating seat 2 is equidistantly provided on the top of the rotating seat 1, and a positioning seat 22 is provided on the outer rotating seat 2 and the inner rotating seat 21, and an initial groove 23 is provided on the positioning seat 22, and a metal short column is placed inside the initial groove 23, and a mounting block 24 is provided on the rotating seat 1 between the corresponding outer rotating seat 2 and the inner rotating seat 21, and a guide groove 25 is provided on the side of the mounting block 24, and an arc-shaped splint 26 is symmetrically slidably connected to the two ends of the inner side surface of the guide groove 25, and a clamping wheel 27 is symmetrically rotatably connected to the two ends of the clamping surface of the arc-shaped splint 26, and a driving unit is provided between the two arc-shaped splints 26;

[0033] It should be noted that the rotating seat 1, the outer rotating seat 2 and the inner rotating seat 21 are all driven by motors. The motor drives the rotating seat 1 to rotate intermittently, and the motor drives the outer rotating seat 2 and the inner rotating seat 21 to rotate continuously. During operation, the time interval of a single rotation of the rotating seat 1 is the time required for one polishing, so that after one polishing is completed, the position can be adjusted to polish the next metal short column to be polished.

[0034] In addition, the central axis of the clamping wheel 27 is arranged parallel to the central axis of the positioning seat 22, so that after the clamping wheel 27 cooperates with the arc-shaped clamping plate 26 to clamp and fix the metal short column, when the metal short column rotates to ensure smooth polishing, the clamping wheel 27 can rotate synchronously with the metal short column without hindering its rotation.

[0035] In this embodiment, the drive unit includes a synchronous gear 3 rotatably connected to the inner side of the guide groove 25, and the ends of the arc-shaped clamping plates 26 on both sides are respectively fixedly connected with synchronous racks 31. The two synchronous racks 31 are respectively engaged with the upper and lower ends of the synchronous gear 3. The top of the mounting block 24 is fixedly installed with a first electric telescopic rod 32, and the telescopic end of the first electric telescopic rod 32 is fixedly connected with a connecting plate 33. A straight groove corresponding to the connecting plate 33 is opened on the top of the mounting block 24. The connecting plate 33 is slidably connected to the inner side of the straight groove, and the bottom of the connecting plate 33 is fixedly connected to one of the synchronous racks 31.

[0036] During operation, after the metal short column is placed in the preliminary groove 23, the connecting plate 33 is driven to move by the first electric telescopic rod 32, so that the connecting plate 33 drives one of the synchronous racks 31 to move. With the cooperation of the synchronous gear 3, the synchronous racks 31 on both sides move synchronously, and drive the two arc-shaped clamping plates 26 to approach each other and clamp and fix the metal short column, so that it can be effectively clamped with the cooperation of the preliminary groove 23 and the arc-shaped clamping plates 26. When it needs to be removed, the synchronous rack 31 can be driven to move and reset by the first electric telescopic rod 32, so that the clamping of the metal short column during polishing is more convenient and easy.

[0037] Example 2:

[0038] See also Figures 1-6 , a switching mechanism is provided between the outer rotating seat 2 and the outer rotating seat 2;

[0039] Two groups of polishing units are provided above the rotating base 1 , and the positions of the two groups of polishing units correspond to the outer rotating base 2 and the inner rotating base 21 respectively.

[0040] The switching mechanism includes several lifting frames 4 arranged on the top of the rotating seat 1. The lifting frames 4 are arranged between the corresponding outer rotating seat 2 and the inner rotating seat 21. A vertical slot corresponding to the lifting frame 4 is opened on the top of the rotating seat 1. The lifting frame 4 is slidably connected to the inner side of the vertical slot. Several second electric telescopic rods 41 corresponding to the lifting frame 4 are installed inside the rotating seat 1. The top of the telescopic end of the second electric telescopic rod 41 is fixedly connected to the lifting frame 4. A support groove 42 is opened inside the lifting frame 4. The inner side of the support groove 42 is rotatably connected to a rotating plate 43. The rotating plate 43 is connected to the inner wall of the support groove 42 through a rotating shaft, and the rotating shaft is driven by a motor.

[0041] In this embodiment, the polishing unit includes a bracket 5 fixedly mounted on the outside of the support seat 105, a horizontal plate 51 is installed on the top of the bracket 5, a connecting seat 52 is installed on the bottom of the horizontal plate 51, a movable groove 53 is provided at the bottom of the connecting seat 52, the inner side surface of the movable groove 53 is slidably connected to a movable block 512, the inner side surface of the movable groove 53 is rotatably connected to an adjusting screw 54, the movable block 512 is threadedly connected to the adjusting screw 54, the bottom of the movable block 512 is fixedly connected to an extension arm 55, the inside of the extension arm 55 is installed with a third electric telescopic rod 56, the bottom of the telescopic end of the third electric telescopic rod 56 is fixedly connected to a drive seat 57, the bottom of the two groups of drive seats 57 are respectively provided with a primary polishing head 58 and a secondary polishing head 59, and the primary polishing head 58 and the secondary polishing head 59 are both driven by a motor.

[0042] Furthermore, the position of the primary polishing head 58 corresponds to the outer rotating seat 2 , and the position of the secondary polishing head 59 corresponds to the inner rotating seat 21 .

[0043] It should be added that the surface of the driving seat 57 is rectangular and symmetrically installed with multiple groups of guide rods 510. The bottom surface of the extension arm 55 is provided with a guide groove 511 corresponding to the guide rod 510. The guide rod 510 is slidingly connected to the inner side surface of the guide groove 511, so that the driving seat 57 can maintain a relatively stable state during operation, so that the polishing work can be carried out smoothly.

[0044] During the polishing process of the metal short column, the arc-shaped clamping plate 26 cooperates with the clamping wheel 27 to clamp and fix it. Then, the adjusting screw 54 provided in the outer polishing unit rotates and drives the primary polishing head 58 to move, so that the primary polishing head 58 moves to a suitable polishing position. After that, the primary polishing head 58 and the outer rotating base 2 rotate, and the position and height of the primary polishing head 58 are continuously adjusted by the third electric telescopic rod 56, so that the primary polishing head 58 can fully polish the exposed part of the metal short column.

[0045] When the polishing of this part is completed, the rotating seat 1 rotates once, so that the unpolished metal short column moves to this position again, and the above steps are carried out for polishing. After the polishing, the metal short column drives its external lifting frame 4 to rise through the corresponding second electric telescopic rod 41, so that the arc clamping plate 26 rises synchronously and drives the metal short column to withdraw from the initial groove 23 on the outer rotating seat 2. Then, the rotating plate 43 on the lifting frame 4 is driven by the motor to rotate upward 180 degrees, so that the metal short column rotates to above the initial groove 23 on the inner rotating seat 21. After that, the second electric telescopic rod 41 drives the lifting frame 4 to move downward, so that the metal short column can move downward into the initial groove 23 there, and then the arc-shaped clamping plate 26 on its outside is driven by the first electric telescopic rod 32 to move in the opposite direction and separate from the metal short column, so that the second electric telescopic rod 41 can continue to drive the arc-shaped clamping plate 26 to move downward, so that the unpolished part of the metal short column can be fully exposed, and then the metal short column is polished for the second time by the secondary polishing head 59 set on the internal polishing unit, so that it can be fully polished, and the metal short column polishing work can be carried out continuously and efficiently.

[0046] Example 3:

[0047] See also Figure 7The outer rotating seat 2 and the inner rotating seat 21 are both provided with a number of threaded holes 6 in a circular shape and at equal intervals. The positioning seat 22 is provided with an entry groove 61 corresponding to the threaded hole 6. The positioning seat 22 is provided with a locking bolt 62. The end of the locking bolt 62 passes through the entry groove 61 and is threadedly connected to the threaded hole 6. During operation, when it is necessary to polish metal short columns of different diameters, the positioning seat 22 can be replaced so that the initial groove 23 on the positioning seat 22 can adapt to the metal short column to be polished, thereby making the polishing clamping component and the polishing equipment more applicable.

[0048] Example 4:

[0049] See also Figure 2 The rotating seat 1 is provided with a loading and unloading station 101, a primary polishing station 102, a transfer station 103 and a secondary polishing station 104 in sequence in a clockwise direction.

[0050] It should be noted that the loading and unloading station 101 is a position for loading and unloading metal short columns, and the loading and unloading of metal short columns can use a common robotic arm, which can remove the polished metal short columns and transport the unpolished metal short columns upward. This type of robotic arm belongs to the existing technology and can be purchased and will not be described in detail here; the first polishing station 102 is a position for performing a first polishing, and the second polishing station 104 is a position for performing supplementary polishing on the unpolished position of the metal short column after the first polishing. The transfer station 103 is set between the first polishing station 102 and the second polishing station 104. This station can meet the state switching of the metal short column between the first polishing and the second polishing, so that the unpolished part of the metal short column is completely exposed, thereby making the continuity of the metal short column polishing process better and enabling more efficient polishing processing.

[0051] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A polishing clamping device for processing hardware products, comprising a clamping mechanism mounted on a rotating seat (1), wherein a support seat (105) is provided at the bottom of the rotating seat (1), characterized in that: The clamping mechanism comprises an outer rotating seat (2) arranged at equal intervals on the top of the rotating seat (1) in a circular shape, an inner rotating seat (21) corresponding to the outer rotating seat (2) is arranged at equal intervals on the top of the rotating seat (1), a positioning seat (22) is provided on both the outer rotating seat (2) and the inner rotating seat (21), an initial positioning groove (23) is provided on the positioning seat (22), a metal short column is placed inside the initial positioning groove (23), a mounting block (24) is provided on the rotating seat (1) and is located between the corresponding outer rotating seat (2) and the inner rotating seat (21), a guide groove (25) is provided on the side surface of the mounting block (24), and arc-shaped clamping plates (26) are symmetrically slidably connected at both ends of the inner side surface of the guide groove (25), and clamping wheels (27) are symmetrically rotatably connected at both ends of the clamping surface of the arc-shaped clamping plates (26), and a driving unit is provided between the two arc-shaped clamping plates (26); A switching mechanism is provided between the outer rotating seat (2) and the outer rotating seat (2); Two groups of polishing units are arranged above the rotating seat (1), and the positions of the two groups of polishing units correspond to the outer rotating seat (2) and the inner rotating seat (21) respectively.

2. A polishing clamping device for hardware processing according to claim 1, characterized in that: The rotating seat (1), the outer rotating seat (2) and the inner rotating seat (21) are all driven by a motor. The motor drives the rotating seat (1) to rotate intermittently, and the motor drives the outer rotating seat (2) and the inner rotating seat (21) to rotate continuously.

3. A polishing clamping device for hardware processing according to claim 2, characterized in that: The central axis of the clamping wheel (27) is arranged parallel to the central axis of the positioning seat (22).

4. A polishing clamping device for hardware processing according to claim 3, characterized in that: The driving unit includes a synchronous gear (3) rotatably connected to the inner side of the guide groove (25), and the ends of the arc-shaped clamping plates (26) on both sides are respectively fixedly connected with synchronous racks (31), and the two synchronous racks (31) are respectively engaged with the upper and lower ends of the synchronous gear (3). A first electric telescopic rod (32) is fixedly installed on the top of the mounting block (24), and the telescopic end of the first electric telescopic rod (32) is fixedly connected with a connecting plate (33). A straight groove corresponding to the connecting plate (33) is opened on the top of the mounting block (24), and the connecting plate (33) is slidably connected to the inner side of the straight groove, and the bottom of the connecting plate (33) is fixedly connected to one of the synchronous racks (31).

5. A polishing clamping device for hardware processing according to claim 4, characterized in that: The switching mechanism comprises a plurality of lifting frames (4) arranged on the top of the rotating seat (1), the lifting frames (4) being arranged between the corresponding outer rotating seat (2) and the inner rotating seat (21), the top of the rotating seat (1) being provided with a vertical slot corresponding to the lifting frames (4), the lifting frames (4) being slidably connected to the inner side surface of the vertical slot, the interior of the rotating seat (1) being provided with a plurality of second electric telescopic rods (41) corresponding to the lifting frames (4), the top of the telescopic end of the second electric telescopic rod (41) being fixedly connected to the lifting frames (4), the interior of the lifting frames (4) being provided with a supporting slot (42), the inner side surface of the supporting slot (42) being rotatably connected to a rotating plate (43), the rotating plate (43) being connected to the inner wall of the supporting slot (42) via a rotating shaft, and the rotating shaft being driven by a motor.

6. A polishing clamping device for hardware processing according to claim 5, characterized in that: The polishing unit comprises a bracket (5) fixedly mounted on the outside of a support seat (105); a transverse plate (51) is mounted on the top of the bracket (5); a connecting seat (52) is mounted on the bottom of the transverse plate (51); a movable groove (53) is provided at the bottom of the connecting seat (52); a movable block (512) is slidably connected to the inner side surface of the movable groove (53); an adjusting screw (54) is rotatably connected to the inner side surface of the movable groove (53); and the movable block (512) is threadedly connected to the adjusting screw (54).

7. A polishing clamping device for hardware processing according to claim 6, characterized in that: The bottom of the moving block (512) is fixedly connected to an extension arm (55), a third electric telescopic rod (56) is installed inside the extension arm (55), and the bottom of the telescopic end of the third electric telescopic rod (56) is fixedly connected to a driving seat (57), and the bottoms of the two groups of driving seats (57) are respectively provided with a primary polishing head (58) and a secondary polishing head (59), and the primary polishing head (58) and the secondary polishing head (59) are driven by a motor. The surface of the driving seat (57) is rectangular and symmetrically provided with multiple groups of guide rods (510), and the bottom surface of the extension arm (55) is provided with a guide groove (511) corresponding to the guide rod (510), and the guide rod (510) is slidably connected to the inner side surface of the guide groove (511).

8. The polishing clamping device for hardware processing according to claim 7, characterized in that: The position of the primary polishing head (58) corresponds to the outer rotating seat (2), and the position of the secondary polishing head (59) corresponds to the inner rotating seat (21).

9. The polishing clamping device for hardware processing according to claim 8, characterized in that: The outer rotating seat (2) and the inner rotating seat (21) are both provided with a plurality of threaded holes (6) at equal intervals in a circular ring shape, the positioning seat (22) is provided with an entry groove (61) corresponding to the threaded hole (6), and the positioning seat (22) is provided with a locking bolt (62), the end of the locking bolt (62) passes through the entry groove (61) and is threadedly connected to the threaded hole (6).

10. The polishing clamping device for hardware processing according to claim 9, characterized in that: The rotating seat (1) is provided with a loading and unloading station (101), a primary polishing station (102), a transfer station (103) and a secondary polishing station (104) in sequence along a clockwise direction.