Combined locking jig for alloy strip surface polishing machining and locking method of combined locking jig

Abstract

The invention relates to the related technical field of alloy strip machining, in particular to a combined locking jig for alloy strip surface polishing machining and a locking method of the combined locking jig for alloy strip surface polishing machining. Two sets of positioning mechanisms are symmetrically arranged on the machining table, and the two positioning mechanisms located on the same side are controlled by pushing mechanisms arranged on the positioning mechanisms to move. The machining table is fixedly connected with a mounting frame, and a clutch mechanism is arranged on the mounting frame. The driving part is arranged on the machining table and connected with the clutch mechanism through an adjustable transmission part, when the pressing action or the pressing releasing action is executed through the positioning mechanism, the clutch mechanism and the pushing mechanism are controlled to be separated and engaged, so that the driving part can control the pushing mechanism to push the positioning mechanism through the adjustable transmission part, and therefore the positioning mechanism can be pressed or released; in the moving process of the positioning mechanism, the moving track is accurately controlled, and the situation that the alloy strip is damaged due to sudden moving or inaccurate positioning of the positioning mechanism is effectively avoided.

Description

Technical Field

[0001] This invention relates to the technical field of alloy strip processing, specifically a combined locking fixture and locking method for surface polishing of alloy strip. Background Technology

[0002] Alloy strip is a thin strip material made from two or more metallic elements through processes such as melting and rolling. It is widely used in electronics, aerospace, and energy. Burrs often appear during the processing or forming of alloy strip, mainly due to the incomplete separation of localized plastic deformations caused by cutting, shearing, or extrusion under stress. Therefore, polishing is necessary to reduce the surface roughness of alloy strip.

[0003] In existing alloy strip polishing processes, a clamping mechanism is typically used to fix the strip around its perimeter. A polishing mechanism then grinds the strip. After polishing, the clamping mechanism stops, and the alloy strip moves across the processing table. The polished strip is conveyed away, while the unpolished strip is conveyed below the polishing mechanism to await the next polishing cycle. The tension of the clamping mechanism and the strip conveying are controlled by the same drive source through a program setting. If the clamping mechanism malfunctions and responds too slowly, the strip may be pulled before it is fully separated from the clamping mechanism, potentially causing the strip to tear and affecting the subsequent polishing quality. Summary of the Invention

[0004] The purpose of this invention is to provide a combined locking fixture for polishing the surface of alloy strips, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A combined locking fixture for polishing the surface of alloy strip includes a processing table;

[0007] Two sets of positioning mechanisms are symmetrically arranged on the processing table. The two positioning mechanisms located on the same side are controlled to move by a pushing mechanism set on the positioning mechanism.

[0008] The processing table is fixedly connected to a mounting frame, and the mounting frame is equipped with a clutch mechanism. When the positioning mechanism is separated from the workpiece, the clutch mechanism can descend and engage with the pushing mechanism for transmission.

[0009] A drive unit is mounted on the machining table and connected to the clutch mechanism via an adjustable transmission component.

[0010] The combined locking fixture for surface polishing of alloy strip as described above: the pushing mechanism includes a lead screw rotatably mounted on the processing table, a first gear fixedly sleeved on the lead screw, and a threaded sleeve plate threadedly connected along the axis of the lead screw, the threaded sleeve plate being slidably connected to a guide rod mounted on the processing table.

[0011] The combined locking fixture for surface polishing of alloy strip as described above: the positioning mechanism includes a first electric telescopic rod mounted on the threaded sleeve plate, the movable end of the first electric telescopic rod being slidably connected to a support plate mounted on the threaded sleeve plate;

[0012] It also includes a limiting rod, which is slidably connected to the support plate. One end of the limiting rod is fixedly provided with a pressure plate, and the other end is rotatably installed with a hinge rod. The end of the hinge rod away from the limiting rod is rotatably connected to the first electric telescopic rod.

[0013] The combined locking fixture for surface polishing of alloy strip as described above: the clutch mechanism includes a second electric telescopic rod mounted on the mounting frame, the movable end of the electric telescopic rod is connected to an elastic structure slidably disposed on the mounting frame, and a connecting shaft is rotatably mounted on the elastic structure, and a second gear capable of meshing with the first gear is fixedly sleeved on the connecting shaft.

[0014] The combined locking fixture for surface polishing of alloy strip as described above: the elastic structure includes a lifting cylinder, one end of which is fixed to the movable end of the second electric telescopic rod, and a lifting rod is slidably arranged inside the other end. A receiving block that is rotatably connected to the connecting shaft is installed on the lifting rod, and the receiving block is slidably connected to a slide rod installed on the mounting frame.

[0015] It also includes a spring, which is disposed inside the lifting cylinder, with one end of the spring abutting against the inner end of the lifting cylinder and the other end abutting against the lifting rod.

[0016] The combined locking fixture for surface polishing of alloy strip as described above: the driving component includes a drive shaft rotatably mounted on the processing table, the drive shaft being driven to rotate by a motor mounted on the processing table, and the drive shaft being connected to a transmission shaft rotatably mounted on the processing table via a bevel gear set.

[0017] The adjustable transmission component includes a central shaft, on which a first connecting rod and a second connecting rod are hinged. The ends of the first connecting rod and the second connecting rod away from the central shaft are respectively hinged to the transmission shaft and the connecting shaft. The central shaft is connected to the transmission shaft and the connecting shaft respectively through a first toothed belt and a second toothed belt.

[0018] A locking method for a combined fixture for polishing the surface of alloy strip, employing a combined locking fixture for polishing the surface of alloy strip as described in any one of the above-mentioned methods, includes the following steps:

[0019] Step 1: After the alloy strip is laid flat on the processing table, when multiple positioning mechanisms are activated to perform the clamping action on the alloy strip, the clutch mechanism and the pushing mechanism are in a disengaged state, and the drive component is activated at the same time.

[0020] Step 2: After the perimeter of the alloy strip grinding area is pressed tightly, the polishing mechanism performs multiple reciprocating grinding operations on the surface of the alloy strip.

[0021] Step 3: After grinding, the positioning mechanism is restarted. While the positioning mechanism releases the alloy strip, the clutch mechanism can engage with the pushing mechanism to resume transmission, so that the drive component can drive the pushing mechanism through the adjustable transmission component. The pressing position of the positioning mechanism on the alloy strip can be changed at regular intervals.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] During the polishing and grinding of alloy strip, the positioning mechanism can automatically press the alloy strip. When the pressing ends and the mechanism completely separates, the clutch mechanism resumes its engagement with the pushing mechanism. The elasticity of the spring compensates for positional errors and avoids rigid expansion when the clutch mechanism and the pushing mechanism are engaged. This allows the drive component to control the pushing mechanism to push the positioning mechanism through the adjustable transmission component. This enables the positioning mechanism to move to the unpolished area and continue pressing. During the movement, the movement trajectory is precisely controlled, effectively preventing damage to the alloy strip caused by sudden movement or inaccurate positioning of the positioning mechanism. Attached Figure Description

[0024] Figure 1 A schematic diagram of the combined locking fixture for polishing the surface of alloy strip.

[0025] Figure 2 A schematic diagram of the pushing mechanism in a combined locking fixture for polishing the surface of alloy strip.

[0026] Figure 3 A schematic diagram of the positioning and pushing mechanisms in a combined locking fixture for polishing the surface of alloy strip.

[0027] Figure 4 A schematic diagram of the drive component and adjustable transmission component in a combined locking fixture for polishing the surface of alloy strip.

[0028] Figure 5 A schematic diagram of the adjustable transmission component in a combined locking fixture for polishing the surface of alloy strip.

[0029] Figure 6 A schematic diagram of the clutch mechanism in a combined locking fixture for polishing the surface of alloy strip.

[0030] Figure 7 A schematic diagram of the clutch and push mechanism in a combined locking fixture for polishing the surface of alloy strip.

[0031] Figure 8 A schematic diagram of the positioning mechanism in a combined locking fixture for polishing the surface of alloy strip.

[0032] In the diagram: 1. Machining table; 2. Mounting bracket; 3. Lead screw; 4. Guide rod; 5. Threaded sleeve plate; 6. First electric telescopic rod; 7. Support plate; 8. Limiting rod; 801. Pressure plate; 9. Hinge rod; 10. First gear; 11. Second electric telescopic rod; 12. Slide rod; 13. Lifting cylinder; 14. Spring; 15. Lifting rod; 16. Receiving block; 17. Connecting shaft; 18. Second gear; 19. Central shaft; 20. Transmission shaft; 21. First connecting rod; 22. Second connecting rod; 23. First toothed belt; 24. Second toothed belt; 25. Bevel gear set; 26. Motor; 27. Drive shaft. Detailed Implementation

[0033] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0034] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0035] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0036] Please see Figures 1-8 In this embodiment of the invention, a combined locking fixture for polishing the surface of alloy strip includes a processing table 1;

[0037] Two sets of positioning mechanisms are symmetrically arranged on the processing table 1. The two positioning mechanisms located on the same side are controlled to move by a pushing mechanism provided on the positioning mechanism.

[0038] The processing table 1 is fixedly connected to the mounting frame 2, which is equipped with a clutch mechanism. When the positioning mechanism is separated from the workpiece, the clutch mechanism can descend and engage with the pushing mechanism for transmission.

[0039] A drive unit is mounted on the processing table 1 and is connected to the clutch mechanism via an adjustable transmission component.

[0040] It should be noted that the processing table 1 is equipped with a polishing mechanism that moves along the length of the alloy strip. This polishing mechanism performs multiple polishing and grinding operations on the clamping area of ​​the positioning mechanism each time. Specifically, a grinding wheel is selected to polish the alloy strip. The existing crank-slider technology is used to control the multiple reciprocating movements of the grinding wheel. After the grinding wheel completes the grinding of a section, it can automatically move to the next station to continue grinding.

[0041] In this embodiment, after the alloy strip is laid flat on the processing table 1, multiple positioning mechanisms are controlled to press the alloy strip around its perimeter, fixing the area of ​​the alloy strip to be polished and preventing it from shifting during polishing. At this time, the clutch mechanism and the pushing mechanism are in a disengaged state, interrupting the power transmission from the drive component to the pushing mechanism. After polishing, the positioning mechanism can automatically release the pressing work on the alloy strip. As the positioning mechanism and the alloy strip are completely separated, the clutch mechanism resumes its meshing transmission with the pushing mechanism, so that the drive component can control the pushing mechanism to perform the pushing work on the positioning mechanism through the adjustable transmission component, so that the positioning mechanism can move to the unpolished area to continue pressing. During the movement, the movement trajectory is precisely controlled, effectively preventing the positioning mechanism from damaging the alloy strip due to sudden movement or inaccurate positioning.

[0042] The starting of the positioning mechanism and the clutch mechanism is controlled by a timer. When the timer sends a signal to the positioning mechanism, the positioning mechanism performs a pressing action on the alloy strip. At the same time, it sends a signal to the clutch mechanism, which separates from the pushing mechanism. When the positioning mechanism comes into contact with the alloy strip, the clutch mechanism has completely separated from the pushing mechanism, thus avoiding relative displacement when the positioning mechanism comes into contact with the alloy strip.

[0043] As a further embodiment of the present invention, please refer to... Figure 3 and Figure 7 The pushing mechanism includes a lead screw 3 rotatably mounted on the processing table 1, a first gear 10 fixedly sleeved on the lead screw 3, and a threaded sleeve 5 threadedly connected along the axis of the lead screw 3. The threaded sleeve 5 is slidably connected to a guide rod 4 mounted on the processing table 1.

[0044] Driven by the driving component, when the lead screw 3 rotates, the threaded sleeve 5 can move linearly along the axial direction of the lead screw 3 under the restriction of the guide rod 4. When the threaded sleeve 5 moves, it drives the positioning mechanism to move synchronously, so as to change the pressing position of the positioning mechanism on the alloy strip. This ensures that when the polishing mechanism polishes the alloy strip in different areas, the positioning mechanism can fix the alloy strip. At the same time, the lead screw 3 has a self-locking characteristic, which ensures that the position of the positioning mechanism remains fixed when the lead screw 3 stops rotating.

[0045] As a further embodiment of the present invention, please refer to... Figure 8 The positioning mechanism includes a first electric telescopic rod 6 mounted on the threaded sleeve 5, and the movable end of the first electric telescopic rod 6 is slidably connected to a support plate 7 mounted on the threaded sleeve 5.

[0046] It also includes a limiting rod 8, which is slidably connected to the support plate 7. One end of the limiting rod 8 is fixedly provided with a pressure plate 801, and the other end is rotatably installed with a hinge rod 9. The end of the hinge rod 9 away from the limiting rod 8 is rotatably connected to the first electric telescopic rod 6.

[0047] Controlled by a timer, the timer sends a signal to the first electric telescopic rod 6. After receiving the signal, the first electric telescopic rod 6 starts. When the movable rod of the first electric telescopic rod 6 retracts, under the action of the hinge rod 9, the limit rod 8 moves up along its own axis, driving the pressure plate 801 to move up synchronously. The pressure plate 801 separates from the alloy strip, avoiding tearing of the alloy strip when the pressure plate 801 moves relative to the alloy strip.

[0048] As a further embodiment of the present invention, please refer to... Figure 6 The clutch mechanism includes a second electric telescopic rod 11 mounted on the mounting frame 2. The movable end of the second electric telescopic rod 11 is connected to an elastic structure slidably mounted on the mounting frame 2. A connecting shaft 17 is rotatably mounted on the elastic structure. A second gear 18 capable of meshing with the first gear 10 is fixedly sleeved on the connecting shaft 17.

[0049] The elastic structure includes a lifting cylinder 13, one end of which is fixed to the movable end of the second electric telescopic rod 11, and a lifting rod 15 is slidably disposed inside the other end. A receiving block 16 that is rotatably connected to the connecting shaft 17 is installed on the lifting rod 15, and the receiving block 16 is slidably connected to the slide rod 12 installed on the mounting frame 2.

[0050] It also includes a spring 14, which is disposed inside the lifting cylinder 13. One end of the spring 14 abuts against the inner end of the lifting cylinder 13, and the other end abuts against the lifting rod 15.

[0051] When the movable rod of the first electric telescopic rod 6 retracts, the second electric telescopic rod 11 receives a signal and starts working. At this time, the movable rod of the second electric telescopic rod 11 extends, causing the lifting cylinder 13 and the lifting rod 15 to move down synchronously. Since the connecting shaft 17 is always rotating during the lifting process, when the teeth of the first gear 10 and the second gear 18 are about to collide during the descent of the second gear 18, the elastic force provided by the spring 14 enables the second gear 18 to automatically deflect and avoid collision. The setting of the spring 14 effectively avoids the damage caused by rigid collision to the first gear 10 and the second gear 18. There are insertion slots between two adjacent teeth on the first gear 10. Under the continuous action of the spring 14, the teeth of the second gear 18 will eventually accurately insert into these insertion slots, thereby completing the smooth meshing transmission of the first gear 10 and the second gear 18.

[0052] Preferably, the elasticity of the spring 14 can compensate for the positional error between the first gear 10 and the second gear 18, so that the second gear 18 can automatically align and mesh with the first gear 10 during rotation.

[0053] As a further embodiment of the present invention, please refer to... Figure 4 and Figure 5 The driving component includes a drive shaft 27 rotatably mounted on the processing table 1. The drive shaft 27 is driven to rotate by a motor 26 mounted on the processing table 1. The drive shaft 27 is connected to a transmission shaft 20 rotatably mounted on the processing table 1 via a bevel gear set 25.

[0054] The adjustable transmission component includes a central shaft 19, on which a first connecting rod 21 and a second connecting rod 22 are hinged. The ends of the first connecting rod 21 and the second connecting rod 22 away from the central shaft 19 are respectively hinged to the transmission shaft 20 and the connecting shaft 17. The central shaft 19 is connected to the transmission shaft 20 and the connecting shaft 17 through a first toothed belt 23 and a second toothed belt 24, respectively.

[0055] In this embodiment, while the alloy strip is being pressed, the motor 26 is started to work. The output shaft of the motor 26 is fixed to the drive shaft 27, so that when the output shaft rotates, it drives the drive shaft 27 to rotate synchronously. Under the transmission of the bevel gear set 25, the transmission shaft 20 rotates. Because the position of the connecting shaft 17 changes, the position of the intermediate shaft 19 can be automatically adjusted with the cooperation of the first connecting rod 21 and the second connecting rod 22, so as to ensure that the transmission shaft 20 and the connecting shaft 17 are always effectively transmitted.

[0056] A locking method for a combined fixture for polishing the surface of alloy strip, employing a combined locking fixture for polishing the surface of alloy strip as described in any one of the above-mentioned methods, includes the following steps:

[0057] Step 1: After the alloy strip is laid flat on the processing table 1, when multiple positioning mechanisms are activated to perform the clamping action on the alloy strip, the clutch mechanism and the pushing mechanism are in a disengaged state, and the driving component is activated at the same time.

[0058] Step 2: After the perimeter of the alloy strip grinding area is pressed tightly, the polishing mechanism performs multiple reciprocating grinding operations on the surface of the alloy strip.

[0059] Step 3: After grinding, the positioning mechanism is restarted. While the positioning mechanism releases the alloy strip, the clutch mechanism can engage with the pushing mechanism to resume transmission, so that the drive component can drive the pushing mechanism through the adjustable transmission component. The pressing position of the positioning mechanism on the alloy strip can be changed at regular intervals.

[0060] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0061] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A combined locking fixture for polishing the surface of alloy strip, comprising a processing table (1), characterized in that... ； Two sets of positioning mechanisms are symmetrically arranged on the processing table (1). The two positioning mechanisms located on the same side are controlled to move by a pushing mechanism set on the positioning mechanism. The processing table (1) is fixedly connected to the mounting frame (2), and the mounting frame (2) is provided with a clutch mechanism. When the positioning mechanism is separated from the workpiece, the clutch mechanism can descend and engage with the pushing mechanism for transmission. The drive unit is mounted on the processing table (1) and is connected to the clutch mechanism via an adjustable transmission unit.

2. The combined locking fixture for polishing the surface of alloy strip according to claim 1, characterized in that, The pushing mechanism includes a lead screw (3) rotatably mounted on the processing table (1), a first gear (10) fixedly sleeved on the lead screw (3), and a threaded sleeve plate (5) threadedly connected along the axis of the lead screw (3). The threaded sleeve plate (5) is slidably connected to a guide rod (4) mounted on the processing table (1).

3. The combined locking fixture for surface polishing of alloy strip according to claim 2, characterized in that, The positioning mechanism includes a first electric telescopic rod (6) installed on the threaded sleeve (5), and the movable end of the first electric telescopic rod (6) is slidably connected to a support plate (7) installed on the threaded sleeve (5); It also includes a limiting rod (8), which is slidably connected to the support plate (7). One end of the limiting rod (8) is fixedly provided with a pressure plate (801), and the other end is rotatably installed with a hinge rod (9). The end of the hinge rod (9) away from the limiting rod (8) is rotatably connected to the first electric telescopic rod (6).

4. The combined locking fixture for surface polishing of alloy strip according to claim 3, characterized in that, The clutch mechanism includes a second electric telescopic rod (11) mounted on the mounting frame (2). The movable end of the electric telescopic rod (11) is connected to an elastic structure that is slidably mounted on the mounting frame (2). A connecting shaft (17) is rotatably mounted on the elastic structure. A second gear (18) that can mesh with the first gear (10) is fixedly sleeved on the connecting shaft (17).

5. The combined locking fixture for surface polishing of alloy strip according to claim 4, characterized in that, The elastic structure includes a lifting cylinder (13), one end of which is fixed to the movable end of the second electric telescopic rod (11), and a lifting rod (15) is slidably arranged inside the other end. A receiving block (16) that is rotatably connected to the connecting shaft (17) is installed on the lifting rod (15), and the receiving block (16) is slidably connected to the slide rod (12) installed on the mounting frame (2). It also includes a spring (14), which is disposed inside the lifting cylinder (13). One end of the spring (14) abuts against the inner end of the lifting cylinder (13), and the other end abuts against the lifting rod (15).

6. The combined locking fixture for surface polishing of alloy strip according to claim 4, characterized in that, The driving component includes a drive shaft (27) rotatably mounted on the processing table (1), the drive shaft (27) being driven to rotate by a motor (26) mounted on the processing table (1), and the drive shaft (27) being connected to a transmission shaft (20) rotatably mounted on the processing table (1) via a bevel gear set (25).

7. The combined locking fixture for surface polishing of alloy strip according to claim 6, characterized in that, The adjustable transmission component includes a central shaft (19), on which a first connecting rod (21) and a second connecting rod (22) are hinged. The ends of the first connecting rod (21) and the second connecting rod (22) away from the central shaft (19) are respectively hinged to the transmission shaft (20) and the connecting shaft (17). The central shaft (19) is connected to the transmission shaft (20) and the connecting shaft (17) through a first toothed belt (23) and a second toothed belt (24) respectively.

8. A locking method for a combined fixture for polishing the surface of alloy strip, characterized in that, The combined locking fixture for polishing the surface of alloy strip as described in any one of claims 1-7 includes the following steps: Step 1: After the alloy strip is laid flat on the processing table (1), when multiple positioning mechanisms are activated to perform the pressing action on the alloy strip, the clutch mechanism and the pushing mechanism are in a separated state, and the driving component is activated at the same time; Step 2: After the perimeter of the alloy strip grinding area is pressed tightly, the polishing mechanism performs multiple reciprocating grinding operations on the surface of the alloy strip. Step 3: After grinding, the positioning mechanism is restarted. While the positioning mechanism releases the alloy strip, the clutch mechanism can engage with the pushing mechanism to resume transmission, so that the drive component can drive the pushing mechanism through the adjustable transmission component. The pressing position of the positioning mechanism on the alloy strip can be changed at regular intervals.

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