A device for grinding and polishing a forging

Abstract

The utility model provides a kind of forging polishing device, including frame body, and fixed unit and polishing unit being set on frame body;Fixed unit includes driving motor, positioning disc, multiple locating blocks and radial displacement mechanism;Positioning disc is configured to be rotated around its own axis under the driving of driving motor;Radial displacement mechanism is drivingly connected to multiple locating blocks, to drive multiple locating blocks synchronous along the radial movement of positioning disc;Polishing unit includes polishing piece, and polishing piece is set to the side of positioning disc, and can be operated to be close to or away from the forging positioned on positioning disc.The utility model sets multiple synchronous radial movement locating blocks on rotatable positioning disc, can position forging by multiple locating blocks in forging inner hole, and cooperate with the polishing piece that can contact with the circumferential outer wall of forging, not only can the circumferential outer wall of forging be polished and polished comprehensively, but also be suitable for a variety of different inner diameter forgings.

Description

Technical Field

[0001] This utility model relates to the field of forging grinding and processing technology, and more specifically, to a forging grinding and polishing device. Background Technology

[0002] The content in this section only provides background information related to this utility model and may not constitute prior art.

[0003] In the field of mechanical manufacturing, cylindrical forgings such as bushings and sleeves are widely used basic components. After forging, the circumferential outer wall of these cylindrical forgings usually needs to be ground and polished to remove defects such as oxide scale and flash, and to achieve the specified dimensional accuracy and surface finish.

[0004] Currently, there are significant challenges in grinding the circumferential outer wall of such cylindrical forgings. Using a general-purpose lathe for external cylindrical grinding requires frequent changes of chucks, mandrels, and other clamping fixtures for forgings with different inner diameters. This cumbersome adjustment process and long preparation time result in low production efficiency, making it particularly unsuitable for small-batch, multi-variety production models. Using handheld angle grinders or other grinding tools relies excessively on operator experience and suffers from high labor intensity, inconsistent grinding quality, and poor product consistency. Summary of the Invention

[0005] In view of this, the purpose of this utility model is to provide a forging grinding and polishing device to at least overcome the above-mentioned technical problems existing in the prior art when grinding the circumferential outer wall of cylindrical forgings.

[0006] The objective of this utility model is achieved through the following technical solution: An embodiment of this utility model provides a forging grinding and polishing device, including a frame, and a fixing unit and a grinding unit disposed on the frame; The fixing unit includes: Drive motor; The positioning disk is configured to rotate about its own axis under the drive of the drive motor; Multiple positioning blocks are arranged in a circular array on the positioning disk with the axis of the positioning disk as the center; A radial displacement mechanism is driven to the plurality of positioning blocks to drive the plurality of positioning blocks to move synchronously along the radial direction of the positioning disk; The grinding unit includes a grinding element disposed beside the positioning plate and operable to move closer to or further away from the forging positioned on the positioning plate.

[0007] Optionally, the radial displacement mechanism includes: The transmission component is configured to move axially along the positioning disk; The drive conversion structure is connected between the transmission member and the plurality of positioning blocks to convert the axial movement of the transmission member into the radial movement of the plurality of positioning blocks.

[0008] Optionally, the drive conversion structure is a beveled mating structure and includes: The first inclined block is provided on the inner side of each of the positioning blocks; The transmission component is provided with a second inclined block that corresponds one-to-one with the first inclined block; the first inclined block and the corresponding second inclined block are engaged by inclined surfaces to convert the axial movement of the transmission component into the radial movement of the corresponding positioning block.

[0009] Optionally, the fixing unit further includes: A rotating frame is disposed below the positioning disk and connected to the positioning disk; the output end of the drive motor is connected to the rotating frame. A linear actuator, mounted on the rotating frame, is used to drive the transmission component to move axially.

[0010] Optionally, each of the positioning blocks and the positioning disk is provided with an elastic element for providing a restoring force.

[0011] Optionally, the positioning disk is provided with limiting grooves that correspond one-to-one with the positioning blocks and extend radially; each positioning block is provided with a slider that can slide within the corresponding limiting groove.

[0012] Optionally, the polishing unit further includes: The guide rail is fixedly mounted on the frame and extends horizontally; A guide rail clamp is slidably connected to the guide rail; the grinding element is connected to the guide rail clamp.

[0013] Optionally, the grinding unit further includes a mounting bracket, which is detachably mounted on the guide rail clamp; the grinding element is fixedly mounted on the mounting bracket. The mounting bracket is provided with an axial limiting part; When the grinding part contacts the circumferential outer wall of the forging, the axial limiting part is opposite to the top surface of the forging to restrict the axial displacement of the forging.

[0014] Optionally, each of the positioning blocks has an arc-shaped structure.

[0015] Optionally, the grinding element is arc-shaped on the side facing the forging.

[0016] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects: The forging grinding and polishing device provided by this utility model, by setting multiple positioning blocks that can move radially and synchronously on a rotatable positioning plate, can position the forging within the inner hole of the forging through multiple positioning blocks. Combined with a grinding element that can contact the circumferential outer wall of the forging, it can not only perform comprehensive grinding and polishing of the circumferential outer wall of the forging, but is also suitable for forgings with various inner diameters. This design effectively solves the technical problem of frequent fixture changes required when grinding the circumferential outer wall of forgings with different inner diameters on a lathe, helping to improve production efficiency. Furthermore, compared to manual grinding, the mechanized grinding method helps to improve the stability and consistency of grinding quality. Attached Figure Description

[0017] Figure 1 A schematic diagram of the forging grinding and polishing device provided in an embodiment of this utility model; Figure 2 A schematic diagram of the structure of the fixing unit provided in an embodiment of this utility model; Figure 3 for Figure 1 The diagram shown is a reference image of the forging grinding and polishing device in use. Figure 4 for Figure 1 A partial structural cross-sectional view of the forging grinding and polishing device in use is shown. Figure 5 A schematic diagram of the positioning disk provided for an embodiment of this utility model; Figure 6 A schematic diagram of the positioning block provided in an embodiment of this utility model; Figure 7 This is a schematic diagram of the structure of the grinding unit provided in an embodiment of the present invention.

[0018] Icons: 100-Forging to be ground, 10-Frame, 20-Fixing unit, 21-Drive motor, 22-Positioning disc, 23-Positioning block, 24-Radial displacement mechanism, 241-Transmission component, 242-First inclined block, 243-Second inclined block, 25-Rotating frame, 26-Linear actuator, 27-Limiting groove, 28-Slider, 29-Elastic component, 30-Grinding unit, 31-Grinding part, 32-Guide rail, 33-Guide rail clamp, 34-Mounting bracket, 341-Axial limiting part, 35-Screw, 36-Nut. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments. The same reference numerals in the accompanying drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] Compared to the embodiments shown in the accompanying drawings, feasible embodiments within the scope of protection of this utility model may have fewer components, have other components not shown in the drawings, different components, components with different arrangements, or components with different connections, etc. Furthermore, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0021] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components.

[0022] Please refer to Figures 1 to 7 As shown, an embodiment of this utility model provides a forging grinding and polishing device for grinding the circumferential outer wall of a forging. The forging described in this embodiment of the utility model is particularly a cylindrical forging with an inner hole, such as a bushing or sleeve.

[0023] According to embodiments of the present invention, such as Figure 1 As shown, the forging grinding and polishing device includes a frame 10, a fixing unit 20 and a grinding unit 30 disposed on the frame 10.

[0024] The fixing unit 20 is mainly used to position the forging 100 to be ground and to drive the forging 100 to rotate around its own axis. (Refer to...) Figure 1 and Figure 2 As shown, the fixing unit 20 includes a drive motor 21, a positioning disk 22, multiple positioning blocks 23, and a radial displacement mechanism 24.

[0025] The drive motor 21 can be fixedly mounted on the frame 10. The positioning disk 22 is connected to the drive motor 21, allowing it to rotate around its own axis under the drive of the drive motor 21. Preferably, the positioning disk 22 is located on the top surface of the frame 10, and the top surface of the positioning disk 22 is coplanar with the top surface of the frame 10, in order to optimize the structural design of the entire grinding and polishing device.

[0026] Multiple positioning blocks 23 are arranged in a circular array on the positioning disk 22 with the axis of the positioning disk 22 as the center. A radial displacement mechanism 24 is driven to the multiple positioning blocks 23 to drive the multiple positioning blocks 23 to move synchronously along the radial direction of the positioning disk 22, specifically to drive the multiple positioning blocks 23 to move synchronously outward along the radial direction of the positioning disk 22. By way of example, the accompanying drawings of this utility model show the case where three positioning blocks 23 are provided on the positioning disk 22.

[0027] The grinding unit 30 is mainly used to grind the circumferential outer wall of the forging 100 to be ground, which is positioned by the fixed unit 20. (Refer to...) Figure 1 As shown, the grinding unit 30 includes a grinding element 31. The grinding element 31 is disposed beside the positioning disk 22 and can be operated to approach or move away from the forging positioned on the positioning disk 22. That is, the position of the grinding element 31 can be adjusted so that it can contact the circumferential outer wall of the forging 100 to be ground. Preferably, the length of the grinding element 31 is equal to the axial length of the forging 100 to be ground.

[0028] According to an embodiment of this utility model, the method of using the forging grinding and polishing device is as follows: Reference Figure 3 and Figure 4 As shown, the forging 100 to be ground is placed vertically on the positioning disk 22, with multiple positioning blocks 23 positioned within the inner hole of the forging 100. Subsequently, the radial displacement mechanism 24 drives all positioning blocks 23 to move synchronously outward along the radial direction of the positioning disk 22. This tightens the inner hole of the forging 100 by the multiple positioning blocks 23, thereby achieving automatic centering and reliable positioning of the forging 100. This ensures that when the drive motor 21 drives the positioning disk 22 to rotate, the forging 100 can rotate synchronously with the positioning disk 22 without easily shifting.

[0029] Next, the grinding tool 31 is moved close to the forging 100 to be ground until it contacts the circumferential outer wall of the forging 100. Finally, the drive motor 21 is started to drive the positioning disk 22 to rotate the positioned forging 100 synchronously, so that the grinding tool 31 can be used to perform comprehensive grinding and polishing of the circumferential outer wall of the forging 100.

[0030] The forging grinding and polishing device provided in this embodiment of the utility model, by setting multiple positioning blocks 23 that can move radially and synchronously on a rotatable positioning disk 22, can position the forging within the inner hole of the forging through the multiple positioning blocks 23. Combined with a grinding component 31 that can contact the circumferential outer wall of the forging, it can not only perform comprehensive grinding and polishing of the circumferential outer wall of the forging, but is also suitable for forgings with various inner diameters. This design effectively solves the technical problem of frequent fixture changes required when grinding the circumferential outer wall of forgings with different inner diameters using a lathe, which helps to improve production efficiency. Furthermore, compared to manual grinding, the mechanized grinding method helps to improve the stability and consistency of grinding quality.

[0031] In some possible embodiments, refer to Figure 6 As shown, each positioning block 23 has an arc-shaped structure. This design allows the positioning block 23 to form good surface contact with the inner wall of the forging, thereby reducing the pressure when the forging is tightened, making the forging more uniformly stressed and achieving better centering.

[0032] In some possible embodiments, the grinding element 31 is arc-shaped on the side facing the forging; that is, the grinding surface of the grinding element 31 that contacts the forging is arc-shaped. This design allows the grinding element 31 to fit more closely to the circumferential outer wall of the forging, increasing the effective contact area between them, thereby improving grinding and polishing efficiency and quality.

[0033] In some possible embodiments, refer to Figure 2 and Figure 4 As shown, the radial displacement mechanism 24 includes a transmission member 241 and a drive conversion structure. The transmission member 241 is coaxially arranged with the positioning disk 22 and located within the area enclosed by multiple positioning blocks 23. Furthermore, the transmission member 241 is movable along the axial direction of the positioning disk 22. Exemplarily, the transmission member 241 may be a transmission rod.

[0034] The drive conversion structure is connected between the transmission member 241 and the multiple positioning blocks 23 to convert the axial movement of the transmission member 241 into the radial movement of the multiple positioning blocks 23. That is, when the transmission member 241 moves axially, the multiple positioning blocks 23 can move radially along the positioning disk 22 synchronously under the transmission action of the drive conversion structure.

[0035] This method of driving multiple positioning blocks 23 to move radially synchronously by making simple axial movement of the transmission component 241 can simplify the structure of the radial displacement mechanism 24 as much as possible and achieve reliable power transmission.

[0036] In a preferred embodiment of this invention, referring to Figure 4 As shown, the drive conversion structure can be a sloped mating structure, and includes a first sloped block 242 and a second sloped block 243.

[0037] Each positioning block 23 has a first inclined block 242 on its inner side. The transmission component 241 is provided with a second inclined block 243 that corresponds one-to-one with the first inclined block 242. The first inclined block 242 and the corresponding second inclined block 243 are engaged by inclined surfaces to convert the axial movement of the transmission component 241 into the radial movement of the corresponding positioning block 23.

[0038] Specifically, in this embodiment, when the transmission component 241 moves downward along the axial direction of the positioning disk 22, each of the second inclined blocks 243 on the transmission component 241 applies a radial pushing force to the corresponding first inclined block 242, thereby forcing the first inclined block 242 to drive the corresponding positioning block 23 to move radially outward. This drive conversion structure is not only simple in structure, but also effectively prevents the positioning block 23 from shifting due to vibration or external force during the grinding process by utilizing the self-locking property of the inclined surface fit.

[0039] In some possible embodiments, in order to achieve the rotation of the positioning disk 22 and the axial movement of the transmission member 241, refer to Figure 2 As shown, the fixed unit 20 also includes a rotating frame 25 and a linear driver 26.

[0040] The rotating frame 25 is positioned below and connected to the positioning disk 22. Preferably, the rotating frame 25 can be coaxially arranged with the positioning disk 22. The output end of the drive motor 21 is connected to the rotating frame 25, thereby driving the rotating frame 25 to rotate synchronously with the positioning disk 22.

[0041] The linear actuator 26 is mounted on the rotating frame 25 and is used to drive the transmission member 241 to move axially. Exemplarily, the linear actuator 26 can be a device suitable for outputting reciprocating linear motion, such as a cylinder or electric actuator. (See reference...) Figure 4 As shown, the bottom end of the transmission component 241 passes through the positioning disk 22 and is connected to the output end of the linear driver 26.

[0042] This design achieves the goal of integrating all components of the fixed unit 20 into one unit, while optimizing the structural design of the fixed unit 20 and making the power transmission path clearer.

[0043] In some possible embodiments, refer to Figures 4 to 6 As shown, the positioning disk 22 is provided with limiting grooves 27 that correspond one-to-one with the positioning blocks 23 and extend radially. Each positioning block 23 is provided with a slider 28 that can slide within the corresponding limiting groove 27.

[0044] The setting of the limiting groove 27 and the slider 28 constitutes a reliable radial guide structure, which can provide accurate and reliable guidance for the radial movement of the positioning block 23, thereby effectively preventing abnormal situations such as deflection and jamming of the positioning block 23 during radial movement.

[0045] In some possible embodiments, an elastic element 29 for providing a reset force is provided between each positioning block 23 and the positioning disk 22. The reset force is used to reset the positioning block 23 after it has moved radially outward.

[0046] Specifically, in this embodiment, as described above, after the transmission member 241 moves downward along the axial direction of the positioning disk 22, causing multiple positioning blocks 23 to move outward radially along the positioning disk 22 simultaneously, if the transmission member 241 begins to move upward along the axial direction of the positioning disk 22, each positioning block 23 can move inward radially and reset under the reset force provided by the corresponding elastic member 29. By adding the elastic member 29, each positioning block 23 has a reset capability, which facilitates the rapid release of the forging after grinding to release the positioning of the forging.

[0047] Specifically, refer to Figure 4 As shown, the elastic element 29 corresponding to each positioning block 23 is a spring, and can be set in the corresponding limiting groove 27. The two ends of each spring are connected to the innermost side of the limiting groove 27 and the corresponding slider 28, respectively. This design can further optimize the structural design of the fixing unit 20.

[0048] In some possible embodiments, in order to achieve adjustment of the position of the grinding element 31, such as Figure 3 and Figure 7 As shown, the grinding unit 30 also includes a guide rail 32 and a guide rail clamp 33.

[0049] The guide rail 32 is fixedly mounted on the frame 10 and extends horizontally toward the location of the positioning disk 22. The guide rail clamp 33 is slidably connected to the guide rail 32. The grinding part 31 is connected to the guide rail clamp 33.

[0050] In practical applications, the operator can manually push the guide rail clamp 33 to slide on the guide rail 32, so that the grinding part 31 can be brought closer to the forging positioned on the positioning plate 22 through the guide rail clamp 33; after the grinding part 31 is in place, the operator can lock the guide rail clamp 33 to fix the position. This design effectively simplifies the position adjustment process of the grinding part 31 and allows the operator to flexibly control the position of the grinding part 31.

[0051] In some possible embodiments, for ease of installation of the grinding element 31, refer to Figure 7 As shown, the grinding unit 30 also includes a mounting bracket 34. The mounting bracket 34 is detachably mounted on the guide rail clamp 33. The grinding piece 31 is fixedly mounted on the mounting bracket 34.

[0052] By setting a detachable mounting bracket 34, which together with the grinding part 31 forms an integrated grinding component, this design is beneficial for replacing the grinding part 31 when it wears out or fails, or for replacing the grinding part 31 with a length that matches the axial length of the forging when the axial length of the forging changes.

[0053] In a preferred embodiment of this invention, referring to Figure 7 As shown, the guide rail clamp 33 is provided with several vertically arranged screws 35, and the mounting bracket 34 is provided with connecting holes that match the screws 35. The screws 35 pass through the connecting holes and are threadedly connected with nuts 36. This design greatly simplifies the assembly and disassembly process of the mounting bracket 34.

[0054] Additionally, the mounting bracket 34 is provided with an axial limiting part 341. (See reference...) Figure 4 As shown, when the grinding part 31 contacts the circumferential outer wall of the forging, the axial limiting part 341 is opposite to the top surface of the forging, and there is a small gap or slight contact between the two to limit the axial displacement of the forging and allow the forging to rotate with the positioning plate 22, thereby preventing the forging from axially running during the grinding process and further improving the stability of the forging during the grinding process.

[0055] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A forging grinding and polishing device, characterized in that, It includes a frame, as well as a fixing unit and a grinding unit mounted on the frame; The fixing unit includes: Drive motor; The positioning disk is configured to rotate about its own axis under the drive of the drive motor; Multiple positioning blocks are arranged in a circular array on the positioning disk with the axis of the positioning disk as the center; A radial displacement mechanism is driven to the plurality of positioning blocks to drive the plurality of positioning blocks to move synchronously along the radial direction of the positioning disk; The grinding unit includes a grinding element disposed on the side of the positioning plate and operable to move closer to or further away from the forging positioned on the positioning plate. The radial displacement mechanism includes: The transmission component is configured to move axially along the positioning disk; A drive conversion structure is connected between the transmission member and the plurality of positioning blocks to convert the axial movement of the transmission member into the radial movement of the plurality of positioning blocks; The drive conversion structure is an inclined plane mating structure, and includes: The first inclined block is provided on the inner side of each of the positioning blocks; The transmission component is provided with a second inclined block that corresponds one-to-one with the first inclined block; the first inclined block and the corresponding second inclined block are engaged by inclined surfaces to convert the axial movement of the transmission component into the radial movement of the corresponding positioning block.

2. The forging grinding and polishing device according to claim 1, characterized in that, The fixing unit further includes: A rotating frame is disposed below the positioning disk and connected to the positioning disk; the output end of the drive motor is connected to the rotating frame. A linear actuator, mounted on the rotating frame, is used to drive the transmission component to move axially.

3. The forging grinding and polishing device according to claim 1, characterized in that, Each of the positioning blocks and the positioning disk is provided with an elastic element for providing a restoring force.

4. The forging grinding and polishing device according to claim 1, characterized in that, The positioning disk is provided with a limiting groove that corresponds one-to-one with the positioning block and extends radially; each positioning block is provided with a slider that can slide within the corresponding limiting groove.

5. The forging grinding and polishing device according to claim 1, characterized in that, The polishing unit also includes: The guide rail is fixedly mounted on the frame and extends horizontally; A guide rail clamp is slidably connected to the guide rail; the grinding element is connected to the guide rail clamp.

6. The forging grinding and polishing device according to claim 5, characterized in that, The grinding unit also includes a mounting bracket, which is detachably mounted on the guide rail clamp; the grinding component is fixedly mounted on the mounting bracket. The mounting bracket is provided with an axial limiting part; When the grinding part contacts the circumferential outer wall of the forging, the axial limiting part is opposite to the top surface of the forging to restrict the axial displacement of the forging.

7. The forging grinding and polishing device according to claim 1, characterized in that, Each of the aforementioned positioning blocks has an arc-shaped structure.

8. The forging grinding and polishing device according to claim 1, characterized in that, The side of the grinding part facing the forging part is arc-shaped.

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