High-precision positioning machining center machine

Abstract

The utility model discloses a high-precision positioning machining center machine, and belongs to the technical field of vertical machining center machines, the vertical machining center machine comprises a fixed machine table, a placing groove, a special-shaped clamp and a driving assembly, each sliding rod extends outwards through resilience force of each reset spring in the driving assembly, and the special-shaped clamp is arranged in the fixed machine table. In this way, all the special-shaped clamps can get close to a workpiece at the same time to clamp the workpiece, all the sliding rods can move in a self-adaptive mode according to the width of the workpiece in the mode that the special-shaped clamps are driven to move through resilience force of the reset springs, and therefore the workpiece with the large length-width ratio difference can be stably clamped; a driving motor in an arranged reset assembly rotates to drive a winding roller to rotate, then each pulling rope can be wound, then each special-shaped clamp can be reset after workpiece machining is completed, the driving motor drives the winding roller to rotate to lengthen each pulling rope, and therefore the pulling ropes can be rewound. And each special-shaped clamp can move towards the direction of the workpiece through the resilience force of the reset spring.

Description

Technical Field

[0001] This utility model belongs to the technical field of vertical machining centers, specifically, it relates to a high-precision positioning machining center. Background Technology

[0002] Machining centers integrate traditional lathes, milling machines, and drilling machines, playing a significant role in machining, especially in parts manufacturing. Through programming, the machining speed and feed rate are controlled, resulting in parts with high precision. Some even have tool magazines for automatic tool changing, leading to very high work efficiency. They can achieve automated and unmanned production operations, bringing considerable economic benefits. Before machining, the workpiece needs to be positioned.

[0003] Chinese utility model patent CN222154698U discloses a vertical machining center with high positioning accuracy, including a machine base. A placement slot is formed on the top of the machine base, and each of the four side walls of the placement slot has a circular hole. Connecting rods are movably connected inside each of the four circular holes. A positioning component is fixedly mounted at one end of each of the four connecting rods. Helical gears are threaded onto the side surfaces of each of the four connecting rods. By configuring the connecting rods, positioning components, helical gears, helical gear disc, and slider, and by activating the drive motor to rotate the helical gear disc, the four helical gears meshing on the surface of the helical gear disc rotate. This causes the threaded connecting rods inside the helical gears to extend into the placement slot, and the slider on the connecting rod slides within a limiting slide rail. This allows the four positioning components to clamp the workpiece in the placement slot, replacing the manual adjustment clamping method and thus improving the positioning accuracy of the vertical machining center.

[0004] The aforementioned existing technology also has the following drawbacks: if the length-to-width ratio of the workpiece is greater than the sliding stroke of the pressure block, the shorter outer wall of the workpiece will not be able to be clamped, resulting in insufficient clamping stability of the workpiece. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] To address the problem mentioned in the background art that if the length-to-width ratio of the workpiece is greater than the sliding stroke of the pressure block, the shorter outer wall of the workpiece cannot be clamped, resulting in insufficient clamping stability, the present invention adopts the following technical solution.

[0007] A high-precision positioning machining center includes a fixed machine base. A placement groove is provided at the center of the upper end of the fixed machine base. Irregular fixtures are provided on the inner walls of the placement groove. A drive component is installed on each irregular fixture, and the drive component enables each irregular fixture to move adaptively according to the width of the workpiece.

[0008] Preferably, a reset component is installed on the fixed machine base, which resets the irregular fixture.

[0009] Preferably, a fixing component is installed on the fixing machine base to fix the position of the irregular clamp.

[0010] Preferably, the drive assembly includes a sliding groove, a shaped clamp, a sliding rod, a limiting boss, and a return spring. The inner wall of the placement groove is provided with a sliding groove. The outer wall of each shaped clamp is fixedly connected with a sliding rod, which is inserted into the sliding groove. The outer wall of each sliding rod is fixedly connected with a limiting boss. A return spring is sleeved between each limiting boss and the inner end of the sliding groove. The rebound force of each return spring causes each sliding rod to extend outward.

[0011] Preferably, the reset assembly includes a curved groove, an installation chamber, a traction rope, a take-up roller, and a drive motor. Each sliding groove has a curved groove at its inner end. The fixed machine base has an installation chamber near its bottom. Each curved groove communicates with the installation chamber. A take-up roller is rotatably connected to the bottom inner side of the installation chamber. A traction rope passing through the curved groove is detachably connected to the end of each sliding rod near the inner side of the sliding groove. Each traction rope is wound around the outer wall of the take-up roller. A drive motor is embedded in the top inner side of the installation chamber. The rotating end of the drive motor is detachably connected to the upper end of the take-up roller. The rotation of the drive motor drives the take-up roller to rotate and take up each traction rope.

[0012] Preferably, the fixing component includes fastening bolts and threaded holes. The fixing machine base is provided with threaded holes at the position above each sliding groove. The internal threads of each threaded hole are connected to fastening bolts, and the threaded end of the fastening bolts contacts the outer wall of the sliding rod.

[0013] Preferably, the fixed machine base is located at the bend of the curved groove and is rotatably connected to a sliding guide wheel, with the traction rope contacting the outer wall of the sliding guide wheel.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. By using the rebound force of each return spring in the set drive assembly to extend each sliding rod outward, each irregular fixture can simultaneously approach the workpiece for clamping. Furthermore, by using the rebound force of the return spring to drive the movement of the irregular fixture, each sliding rod can adaptively move according to the width of the workpiece, thereby enabling stable clamping of workpieces with large length-to-width ratio differences.

[0016] 2. The drive motor in the reset assembly rotates to drive the take-up roller to rotate, thereby winding up each traction rope. After the workpiece is processed, each irregular fixture is reset. When clamping the workpiece, the drive motor drives the take-up roller to rotate and lengthen each traction rope. The return force of the reset spring causes each irregular fixture to move in the same direction as the workpiece.

[0017] 3. The sliding guide wheel can reduce the friction between the traction rope and the inner wall of the curved groove, thus increasing the service life.

[0018] 4. After the workpiece is clamped in the special-shaped fixture by the fixed component, the position of the sliding rod can be fixed by rotating the fastening bolt, thereby avoiding the movement of the sliding rod caused by the vibration generated during the processing of the workpiece. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a high-precision positioning machining center according to the present invention;

[0020] Figure 2 This is a schematic diagram of the drive component structure in this utility model;

[0021] Figure 3 This is a schematic diagram of the reset component structure in this utility model;

[0022] Figure 4 This is a schematic diagram of the fastening component structure in this utility model;

[0023] The correspondence between the labels and component names in the attached figures is as follows:

[0024] 100. Fixing the machine base; 101. Placing the groove; 102. Sliding groove; 103. Curved groove; 104. Installing the chamber;

[0025] 200. Irregularly shaped clamp; 201. Sliding rod; 202. Limiting boss; 203. Return spring; 204. Traction rope; 205. Take-up roller; 206. Drive motor; 207. Sliding guide wheel;

[0026] 300, Fastening bolt; 301, Threaded hole. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0030] like Figure 1 As shown, this is a schematic diagram of a high-precision positioning machining center according to a preferred embodiment of the present invention. The high-precision positioning machining center of this embodiment includes a fixed machine base 100. A placement groove 101 is provided at the center of the upper end of the fixed machine base 100. The inner walls of the placement groove 101 are provided with irregular clamps 200. In this embodiment, the workpiece is placed inside the placement groove 101 and clamped by multiple irregular clamps 200. The irregular clamps 200 can also stably clamp irregular workpieces.

[0031] like Figure 2 As shown, this is a schematic diagram of the drive component structure in this embodiment. The inner walls of the placement groove 101 are provided with sliding grooves 102. Each irregular clamp 200 has a sliding rod 201 fixedly connected to its outer wall. The sliding rod 201 is inserted into the sliding groove 102. Each sliding rod 201 has a limiting boss 202 fixedly connected to its outer wall. Each limiting boss 202 is sleeved with a return spring 203 between its inner end and the sliding groove 102. In this embodiment, when the workpiece is placed inside the placement groove 101, the rebound force of each return spring 203 causes each sliding rod 201 to extend outward, thereby enabling each irregular clamp 200 to simultaneously approach the workpiece for clamping. Furthermore, by driving the irregular clamp 200 to move through the rebound force of the return spring 203, each sliding rod 201 can move adaptively according to the width of the workpiece, thus enabling stable clamping of workpieces with large length-to-width ratio differences.

[0032] It is worth noting that the sliding groove 102, sliding rod 201, limiting boss 202 and return spring 203 mentioned above are the driving components in this embodiment. The driving components include, but are not limited to, sliding groove 102, irregular fixture 200, sliding rod 201, limiting boss 202 and return spring 203. Any component that can make each irregular fixture 200 move adaptively according to the position of the workpiece can be applied to this embodiment.

[0033] like Figure 2 as well as Figure 3 As shown, this is a schematic diagram of the reset assembly structure in this embodiment. Each sliding groove 102 has a curved groove 103 at its inner end. A mounting chamber 104 is located near the bottom of the fixed machine base 100. Each curved groove 103 communicates with the mounting chamber 104. A take-up roller 205 is rotatably connected to the bottom inner side of the mounting chamber 104. A traction rope 204 passing through the curved groove 103 is detachably connected to the end of each sliding rod 201 near the inner side of the sliding groove 102. Each traction rope 204 is wound around the outer wall of the take-up roller 205. A drive motor 206 is embedded in the top inner side of the mounting chamber 104. The rotating end of the drive motor 206 is detachably connected to the upper end of the take-up roller 205. The fixed machine base 100... A sliding guide wheel 207 is rotatably connected to the bend of the curved groove 103. The traction rope 204 contacts the outer wall of the sliding guide wheel 207. In this embodiment, the drive motor 206 rotates to drive the winding roller 205 to rotate, thereby winding up each traction rope 204. After the workpiece is processed, each irregular fixture 200 is reset. When clamping the workpiece, the drive motor 206 drives the winding roller 205 to rotate and lengthen each traction rope 204. The return force of the return spring 203 makes each irregular fixture 200 move in the same direction as the workpiece. The sliding guide wheel 207 can reduce the friction between the traction rope 204 and the inner wall of the curved groove 103, increasing the service life.

[0034] It is worth noting that the curved groove 103, mounting chamber 104, traction rope 204, winding roller 205 and drive motor 206 mentioned above are the reset components in this embodiment. The reset components include, but are not limited to, the curved groove 103, mounting chamber 104, traction rope 204, winding roller 205 and drive motor 206. Any component that can reset each irregular clamp 200 can be applied to this embodiment.

[0035] like Figure 2 as well as Figure 4 As shown, this is a schematic diagram of the fixing component structure in this embodiment. The fixing machine base 100 is provided with threaded holes 301 above each sliding groove 102. Each threaded hole 301 is internally threaded with a fastening bolt 300. The threaded end of the fastening bolt 300 contacts the outer wall of the sliding rod 201. In this embodiment, after the special-shaped fixture 200 clamps the workpiece, the position of the sliding rod 201 can be fixed by rotating the fastening bolt 300, thereby avoiding the movement of the sliding rod 201 caused by the vibration generated during the processing of the workpiece.

[0036] It is worth noting that the fastening bolt 300 and threaded hole 301 mentioned above are the fixing components in this embodiment. The fixing components include, but are not limited to, the fastening bolt 300 and threaded hole 301. Any component that can fix the position of the irregular clamp 200 can be applied to this embodiment.

[0037] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A high-precision positioning machining center, comprising a fixed machine table (100), wherein a placement groove (101) is provided at the center of the upper end of the fixed machine table (100), characterized in that, The inner walls of the placement groove (101) are provided with irregular clamps (200), and each irregular clamp (200) is equipped with a drive component, which enables each irregular clamp (200) to move adaptively according to the workpiece width. The drive assembly includes a sliding groove (102), a special-shaped clamp (200), a sliding rod (201), a limiting boss (202), and a return spring (203). The inner walls of the placement groove (101) are provided with a sliding groove (102). The outer wall of each special-shaped clamp (200) is fixedly connected with a sliding rod (201). The sliding rod (201) is inserted into the interior of the sliding groove (102). The outer wall of each sliding rod (201) is fixedly connected with a limiting boss (202). A return spring (203) is sleeved between each limiting boss (202) and the inner end of the sliding groove (102). The rebound force of each return spring (203) causes each sliding rod (201) to extend outward. The reset assembly includes a curved groove (103), a mounting chamber (104), a traction rope (204), a take-up roller (205), and a drive motor (206). A curved groove (103) is provided at the inner end of each sliding groove (102). A mounting chamber (104) is provided near the bottom of the fixed machine base (100). Each curved groove (103) communicates with the mounting chamber (104). A take-up roller (205) is rotatably connected to the inner bottom of the mounting chamber (104). Each sliding rod (206)... 1) A traction rope (204) passing through the curved groove (103) is detachably connected to the end near the inner side of the sliding groove (102). Each traction rope (204) is wrapped around the outer wall of the take-up roller (205). A drive motor (206) is embedded in the top of the inner side of the mounting chamber (104). The rotating end of the drive motor (206) is detachably connected to the upper end of the take-up roller (205). The drive motor (206) rotates to drive the take-up roller (205) to rotate and take up each traction rope (204). The fixed machine base (100) is located at the bend of the curved groove (103) and is rotatably connected to the sliding guide wheel (207). The traction rope (204) contacts the outer wall of the sliding guide wheel (207).

2. The high-precision positioning machining center machine according to claim 1, characterized in that, A reset assembly is installed on the fixed machine base (100), which resets the irregular fixture (200).

3. The high-precision positioning machining center machine according to claim 2, characterized in that, A fixing component is installed on the fixed machine base (100) to fix the position of the irregular clamp (200).

4. The high-precision positioning machining center machine according to claim 3, characterized in that, The fixing assembly includes a fastening bolt (300) and a threaded hole (301). The fixing base (100) is provided with a threaded hole (301) above each sliding groove (102). The internal thread of each threaded hole (301) is connected to a fastening bolt (300), and the threaded end of the fastening bolt (300) contacts the outer wall of the sliding rod (201).

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