Auxiliary support for machining

Abstract

The utility model provides an auxiliary support for machining, which comprises a base, the base is provided with at least one group of first support components which are arranged oppositely in pairs, one end of the base is also provided with a second support component, and each first support component comprises a limiting block, a rotating shaft and a roller which is connected with the rotating shaft through a bearing; the second supporting assembly comprises a fixing support, a positioning vertical ruler, a first adjusting wheel, a second adjusting wheel, a first limiting column and a second limiting column, the positioning vertical ruler is arranged on the fixing support in the direction perpendicular to the base, and a first gear is arranged on the end face of the first limiting column, and a second gear is arranged on the end face of the second limiting column and meshed with the positioning vertical ruler. And central shafts of the first adjusting wheel and the second adjusting wheel penetrate through the positioning vertical ruler and are respectively connected with the first gear and the second gear. According to the auxiliary support for machining, the large-size workpiece to be machined is stably supported, the whole support is simple in structure, the workpiece to be machined is convenient to disassemble and assemble, and the practicability of the auxiliary support for machining is improved.

Description

Technical Field

[0001] This utility model relates to the field of machine tool processing technology, and specifically to an auxiliary support for machining. Background Technology

[0002] In machine tool processing, the workpiece needs to be stably fixed to ensure the surface machining accuracy. In actual processing, for long workpieces, the method of clamping one end and supporting the other end is used for clamping. Due to the poor rigidity of the workpiece, radial shaking of the workpiece is easily caused after the machine tool starts, resulting in problems such as the inner hole diameter being too large, the outer hole surface having chatter marks, or low machining accuracy. To address this problem, Chinese patent CN221019865U discloses an auxiliary support for machining slender shafts, including a base. The top of the base is connected to a cylindrical support through symmetrically arranged support plates. A circular fixing plate is fixedly connected to the inner wall of the support. The fixing plate is connected to a circumferentially distributed clamping rod through a clamping mechanism. The slender shaft workpiece is placed inside the support. The principle is to use clamping rods to clamp the thin shaft workpiece from its outer surface to fix the thin shaft workpiece; however, the auxiliary support of this structure requires a cylindrical support with a larger diameter than the workpiece to be processed when processing workpieces with larger diameter and longer length. This not only increases the resistance to workpiece rotation and makes processing inconvenient, but also increases the difficulty of installation. It can be seen that the practicality of this technical solution is insufficient. Utility Model Content

[0003] This utility model proposes an auxiliary support for machining, which solves the technical problems existing in the aforementioned background art by optimizing the structure of the auxiliary support.

[0004] The technical solution of this utility model is as follows:

[0005] An auxiliary support for machining includes a base, on which at least one set of first support components arranged in pairs opposite each other are provided. A second support component is also provided at one end of the base. The first support component includes a limiting block, a rotating shaft, and rollers connected to the rotating shaft via bearings. The rotating shaft is connected to the limiting block. The second support component includes a fixed bracket, a positioning vertical ruler, a first adjusting wheel, a second adjusting wheel, a first limiting post, and a second limiting post. The positioning vertical ruler is arranged on the side of the fixed bracket near the workpiece, perpendicular to the base. A first gear is provided on the end face of the first limiting post, and a second gear is provided on the end face of the second limiting post. The first gear and the second gear mesh with the positioning vertical ruler. The central axes of the first adjusting wheel and the second adjusting wheel pass through the positioning vertical ruler and are respectively connected to the first gear and the second gear.

[0006] Optionally, the central axes of the first limiting post and the second limiting post are parallel to each other; the first support assembly applies a first support force to the workpiece, and the second support assembly applies a second support force to the workpiece, the second support force including a lifting force perpendicular to the base upward, and / or a pressure perpendicular to the base downward.

[0007] Optionally, both the first limiting post and the second limiting post include a bearing and a sleeve fitted onto the bearing.

[0008] Optionally, it also includes a shaft limiter, which is disposed between the two first support components and connected to the base, wherein the ball bearings on the shaft limiter are configured to roll and abut against the end face of the workpiece.

[0009] Optionally, the first support assembly further includes a lead screw and a drive device, wherein the lead screw is indirectly connected to the limiting block, and the drive device is drivenly connected to the lead screw.

[0010] Optionally, the shaft limiter is also provided on the fixed bracket, and the ball bearing on the shaft limiter is configured to roll and abut against the end face of the workpiece.

[0011] The working principle and beneficial effects of this utility model are as follows:

[0012] In this invention, a pair of first support components support the workpiece from its outer surface. Simultaneously, a second support component positioned above the first support components applies pressure to the workpiece surface and / or applies an upward pulling force to the workpiece surface. This not only achieves stable support for large-sized workpieces but also simplifies the structure of the entire support, facilitating the assembly and disassembly of the workpiece and enhancing the practicality of the auxiliary support for machining. Attached Figure Description

[0013] Figure 1 A three-dimensional structural schematic diagram of the auxiliary support for machining provided by this utility model;

[0014] Figure 2 This is a left view of the machining auxiliary support according to Embodiment 1 of this utility model;

[0015] Figure 3 This is a front view of the connection structure between the right clamping plate and the base plate in this utility model.

[0016] In the diagram: 1. Base; 2. First support assembly; 21. Limiting block; 22. Roller; 3. Second support assembly; 31. Fixed bracket; 32. Positioning ruler; 33. First adjusting wheel; 34. Second adjusting wheel; 35. First limiting post; 36. Second limiting post; 4. First gear; 5. Second gear; 6. Shaft limiter. Detailed Implementation

[0017] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0018] In machine tool processing, the workpiece needs to be stably fixed to ensure the surface machining accuracy. In actual processing, for long workpieces, the method of clamping one end and supporting the other end is used for clamping. Due to the poor rigidity of the workpiece, radial shaking of the workpiece is easily caused after the machine tool starts, resulting in problems such as the inner hole diameter being too large, the outer hole surface having chatter marks, or low machining accuracy. To address this problem, Chinese patent CN221019865U discloses an auxiliary support for machining slender shafts, including a base 1. The top of the base 1 is connected to a cylindrical support through symmetrically arranged support plates. A circular fixing plate is fixedly connected to the inner wall of the support. The fixing plate is connected to a circumferentially distributed clamping rod through a clamping mechanism. The slender shaft workpiece is placed inside the support. The principle is to use clamping rods to clamp the thin shaft workpiece from its outer surface to fix the thin shaft workpiece; however, the auxiliary support of this structure requires a cylindrical support with a larger diameter than the workpiece to be processed when processing workpieces with larger diameter and longer length. This not only increases the resistance to workpiece rotation and makes processing inconvenient, but also increases the difficulty of installation. It can be seen that the practicality of this technical solution is insufficient.

[0019] In view of this, the present invention provides an auxiliary support for machining, which solves the problem in the existing related technologies that it is inconvenient to provide auxiliary support and install and use for workpieces with large diameter and long length by optimizing the structure of the auxiliary support.

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] A preferred embodiment of the auxiliary support for machining provided by this utility model is as follows: Figure 1 , 2As shown in Figure 3: A machining auxiliary support includes a base 1, on which at least one set of first support components 2 arranged in pairs opposite each other are provided. A second support component 3 is also provided at one end of the base 1. The first support component 2 includes a limiting block 21, a rotating shaft, and a roller 22 connected to the rotating shaft via a bearing. The rotating shaft is connected to the limiting block 21. The second support component 3 includes a fixed bracket 31, a positioning vertical ruler 32, a first adjusting wheel 33, a second adjusting wheel 34, a first limiting post 35, and a second limiting post 36. The positioning vertical ruler 32 is arranged on the side of the fixed bracket 31 near the workpiece along a direction perpendicular to the base 1. A first gear 4 is provided on the end face of the first limiting post 35, and a second gear 5 is provided on the end face of the second limiting post 36. The first gear 4 and the second gear 5 mesh with the positioning vertical ruler 32. The central axes of the first adjusting wheel 33 and the second adjusting wheel 34 pass through the positioning vertical ruler 32 and are respectively connected to the first gear 4 and the second gear 5.

[0022] As described above, in this utility model, a pair of first support components 2 are used to support the workpiece from its outer surface. At the same time, a second support component 3 is provided above the first support component 2. The second support component 3 applies pressure to the surface of the workpiece and / or applies an upward pulling force to the surface of the workpiece. This not only achieves stable support for large-sized workpieces, but also simplifies the structure of the entire bracket, facilitates the assembly and disassembly of the workpiece, and improves the practicality of the auxiliary bracket for machining.

[0023] Among them, such as Figure 2 and Figure 3 As shown, in the aforementioned first support assembly 2, the limiting block 21 is fixed on the base 1, and the roller 22 is semi-nested on the limiting block 21. The outer surface of the roller 22 abuts against the outer surface of the workpiece. When the workpiece rotates around its central axis, the roller 22 rotates synchronously. The bearing connection reduces the resistance between the roller 22 and the outer surface of the workpiece. In the aforementioned second support assembly 3, the teeth on the positioning vertical ruler 32 mesh with the gears on the first limiting post 35 and the second limiting post 36, allowing the first adjusting wheel 33 and the second adjusting wheel 34 to adjust the vertical position of the first limiting post 35 and the second limiting post 36 accordingly, thus converting rotational action into linear movement. In practice, the positioning vertical ruler 32 can be configured with toothed structures on both sides and a groove structure in the middle, so that the central axis of the first adjusting wheel 33 and the second adjusting wheel 34 can pass through. In addition, the positioning vertical ruler 32 is also used as a displacement reference when adjusting the position of the first limiting post 35 or the second limiting post 36, to determine the distance between the first limiting post 35 and the second limiting post 36, or to determine the height of the first limiting post 35 and the second limiting post 36.

[0024] In addition, the central axis of the first limiting post 35 and the central axis of the second limiting post 36 are parallel to each other; the first support component 2 applies a first support force to the workpiece to be processed, and the second support component 3 applies a second support force to the workpiece to be processed. The second support force includes a lifting force perpendicular to the base 1 upward and / or a pressure perpendicular to the base 1 downward.

[0025] In this embodiment, the second supporting force applied to the workpiece actually includes an upward pulling force, that is, a lifting force perpendicular to the base 1, which is the upward lifting force generated by the surface of the first limiting post 35 abutting against the inner surface of the workpiece, to assist the first support assembly 2 in stabilizing the workpiece on the base 1; the distance between the first limiting post 35 and the inner surface of the workpiece is adjusted by rotating the first adjusting wheel 33. Additionally, it also includes a downward pressure, that is, a downward pressure perpendicular to the base 1, which is generated by the second limiting post 36 pressing down on the outer surface of the workpiece to fix it on the base 1; wherein, the distance between the second limiting post 36 and the outer surface of the workpiece is adjusted by the second adjusting wheel 34.

[0026] In some embodiments, the aforementioned first limiting post 35 and second limiting post 36 each include a bearing and a sleeve fitted onto the bearing. The bearing and sleeve cooperate so that when the first limiting post 35 or the second limiting post 36 contacts the surface of the workpiece, the sleeve can roll as the workpiece rotates, thereby reducing the friction between the first limiting post 35 or the second limiting post 36 and the surface of the workpiece, increasing the rotational speed of the workpiece, and thus improving its processing efficiency.

[0027] like Figure 1 As shown, the auxiliary support in this embodiment also includes an axis limiter 6, which is disposed between the two first support components 2 and connected to the base 1. The ball bearings on the axis limiter 6 are configured to roll and abut against the end face of the workpiece. The axis limiter 6 serves to control the position of the workpiece from its end face. The ball bearings on the axis limiter 6, which contact the end face of the workpiece, are designed to reduce wear on the end face and decrease friction, thereby improving processing efficiency. In practice, the installation height of the ball bearings can be adjusted to accommodate end face structures of different sizes of workpieces. Specific details can be found in existing methods for adjusting the installation height of the ball bearings, which will not be elaborated upon in this embodiment.

[0028] In other embodiments, the first support component 2 of the machining auxiliary bracket provided by this utility model further includes a lead screw and a driving device. The lead screw is indirectly connected to the limiting block 21, and the driving device is drivenly connected to the lead screw. In this embodiment, the driving device controls the position of the first support component 2 on the base 1, so that the distance between two opposing first support components 2 is adjustable to accommodate multiple sizes of workpieces to be processed.

[0029] Finally, this utility model provides an auxiliary support for machining, including a base 1. The base 1 is provided with at least one set of first support components 2 arranged in pairs opposite each other. One end of the base 1 is also provided with a second support component 3. The first support component 2 includes a limiting block 21, a rotating shaft, and a roller 22 connected to the rotating shaft through a bearing. The rotating shaft is connected to the limiting block 21. The second support component 3 includes a fixed bracket 31, a positioning vertical ruler 32, a first adjusting wheel 33, a second adjusting wheel 34, a first limiting post 35, and a second limiting post 36. The positioning vertical ruler 32 is arranged on the side of the fixed bracket 31 near the workpiece along a direction perpendicular to the base 1. The end face of the first limiting post 35 is provided with a first gear 4, and the end face of the second limiting post 36 is provided with a second gear 5. The first gear 4 and the second gear 5 mesh with the positioning vertical ruler 32. The central shafts of the first adjusting wheel 33 and the second adjusting wheel 34 pass through the positioning vertical ruler 32 and are respectively connected to the first gear 4 and the second gear 5. This invention not only provides stable support for large-sized workpieces, but also features a simple structure that facilitates the assembly and disassembly of the workpieces, thus improving the practicality of auxiliary supports for machining.

[0030] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An auxiliary support for machining, comprising a base (1), characterized in that, The base (1) is provided with at least one set of first support assemblies (2) arranged opposite to each other, and one end of the base (1) is further provided with a second support assembly (3), the first support assembly (2) comprises a limiting block (21), a rotating shaft, a roller (22) connected with the rotating shaft through a bearing, and the rotating shaft is connected with the limiting block (21); the second support assembly (3) comprises a fixed support (31), a positioning vertical ruler (32), a first adjusting wheel (33), a second adjusting wheel (34), a first limiting column (35) and a second limiting column (36), the positioning vertical ruler (32) is arranged on the side of the fixed support (31) close to the workpiece to be machined along the direction perpendicular to the base (1), the end surface of the first limiting column (35) is provided with a first gear (4), the end surface of the second limiting column (36) is provided with a second gear (5), the first gear (4) and the second gear (5) are engaged with the positioning vertical ruler (32), and the central shafts of the first adjusting wheel (33) and the second adjusting wheel (34) pass through the positioning vertical ruler (32) and are connected with the first gear (4) and the second gear (5) respectively.

2. The auxiliary support for machining according to claim 1, characterized in that The central shaft of the first limiting column (35) and the central shaft of the second limiting column (36) are parallel to each other; the first support assembly (2) applies a first supporting force to the workpiece to be machined, and the second support assembly (3) applies a second supporting force to the workpiece to be machined, the second supporting force comprises a lifting force upward perpendicular to the base (1) and / or a pressure downward perpendicular to the base (1).

3. The auxiliary support for machining according to claim 1, characterized in that The first limiting column (35) and the second limiting column (36) each comprise a bearing and a sleeve arranged on the bearing.

4. The auxiliary support for machining according to claim 3, characterized in that Further comprising a shaft limiting part (6), the shaft limiting part (6) is arranged between two first support assemblies (2) and connected with the base (1), and the rolling balls on the shaft limiting part (6) are arranged to roll against the end surface of the workpiece to be machined.

5. The auxiliary support for machining according to claim 3, characterized in that, The first support assembly (2) further comprises a lead screw and a driving device, the lead screw is indirectly connected with the limiting block (21), and the driving device is drivingly connected with the lead screw.

6. The auxiliary support for machining according to claim 4, characterized in that The shaft limiting part (6) is further arranged on the fixed support (31), and the rolling balls on the shaft limiting part (6) are arranged to roll against the end surface of the workpiece to be machined.

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