Accurate feeding mechanism

Abstract

The utility model discloses a precise feeding mechanism which comprises a milling machine base, a workbench and a fixing part. The milling machine base is provided with a rotating shaft transversely arranged at the top end of the milling machine base and a positioning disc arranged at one end of the rotating shaft, and the workbench is rotationally arranged at the top of the milling machine base. The workbench is provided with a rotating frame rotationally arranged at the top of the milling machine base and a table top arranged at the top of the rotating frame, the rotating frame rotates along a rotating shaft to change the angle of the table top, the fixing parts are arranged on the two sides of the workbench and provided with connecting rods arranged on the side faces of the workbench, and sliding rods are arranged in the connecting rods in a sliding mode. And the sliding rod is connected with the positioning disc in a clamping manner. The workbench and the fixing part are arranged, the rotating frame can rotate along the rotating shaft, so that the rotating angle of the table top is changed, the sliding rod is embedded into the positioning disc to be connected with the positioning disc in a clamped mode, the rotating angle of the table top can be fixed, the machinable angle of a workpiece is increased, and the machining efficiency of the workpiece is improved.

Description

Technical Field

[0001] This utility model relates to the field of milling machine technology, specifically to a precision feeding mechanism. Background Technology

[0002] A milling machine is a machine tool that uses a milling cutter to machine various surfaces of a workpiece. Typically, the rotation of the milling cutter is the primary motion, while the movement of the workpiece and the milling cutter constitutes the feed motion. It can machine planes, grooves, various curved surfaces, and gears.

[0003] When a milling machine is in operation, it needs to use multiple fixtures to fix a workpiece on the worktable. The existing milling machine can only move the worktable horizontally to adjust the workpiece position by using two lead screws set in the horizontal and vertical directions. It cannot rotate the worktable vertically to adjust its angle. Instead, the fixed workpiece needs to be removed, the fixture position adjusted, and then re-clamped. Due to the large number of fixtures, the workpiece needs to be repeatedly disassembled and reassembled to adjust the angle, which increases the operator's workload and reduces the processing efficiency of parts. Utility Model Content

[0004] The purpose of this invention is to provide a precise feeding mechanism to solve the problems mentioned in the background art, such as the need for multiple fixtures to fix the workpiece when machining on existing milling machines, and the inability to rotate the worktable to adjust the angle by only adjusting the horizontal and vertical lead screws. Adjusting the angle requires disassembling the workpiece, resetting the fixtures, and fixing them again. This process is cumbersome due to the large number of fixtures, and the repeated disassembly and reassembly of the workpiece to adjust the angle increases the workload of the operator and reduces machining efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a precision feeding mechanism for mounting on a milling machine, the precision feeding mechanism comprising a milling machine base, a worktable, and a fixing part:

[0006] The milling machine base has a rotating shaft horizontally disposed at the top of the milling machine base and a positioning plate disposed at one end of the rotating shaft. The worktable is rotatably disposed at the top of the milling machine base. The worktable has a rotating frame rotatably disposed at the top of the milling machine base and a table surface disposed at the top of the rotating frame. The rotating frame rotates along the rotating shaft to change the angle of the table surface. The fixing part is disposed on both sides of the worktable. The fixing part has a connecting rod disposed on the side of the worktable. A sliding rod is slidably disposed inside the connecting rod. The sliding rod is engaged with the positioning plate. The sliding rod is engaged with the positioning plate to fix the rotation angle of the rotating frame on the milling machine base.

[0007] By adopting the above technical solution, the rotation angle of the table can be changed by rotating the rotating frame along the rotating axis, and the rotation angle of the table can be fixed by inserting the sliding rod into the positioning plate and engaging with it, thereby increasing the workpiece's machinable angle and improving the workpiece's processing efficiency.

[0008] Preferably, the worktable also has a rotating groove formed at the bottom of the rotating frame, through which the rotating shaft is rotatably connected.

[0009] By adopting the above technical solution, the rotating frame can be rotated along the axis of rotation, thereby changing the rotation angle of the table on the milling machine base.

[0010] Preferably, the fixing part has a fixing bolt provided at the bottom of the sliding rod, and the side of the positioning plate has a plurality of positioning holes, and the fixing bolt is inserted into the positioning holes and engaged with them.

[0011] By adopting the above technical solution, the rotation angle of the worktable on the milling machine base can be fixed by inserting a fixing bolt into the positioning hole.

[0012] Preferably, the fixing part also has a groove formed inside the connecting rod, and the sliding rod is inserted into the groove and slidably connected thereto.

[0013] By adopting the above technical solution, the sliding rod can be allowed to slide within the connecting rod.

[0014] Preferably, the fixing part also has a connecting groove formed at the top of the sliding rod and a spring disposed inside the connecting groove, the spring being located between the sliding rod and the connecting rod.

[0015] By adopting the above technical solution, the sliding rod can be pushed to slide within the connecting rod by the elastic force provided by the spring.

[0016] Preferably, there are two fixing parts, which are arranged in a mirror image symmetrically on both sides of the rotating frame. There are also two positioning plates, which are located on both sides of the rotating shaft and abut against the fixing parts.

[0017] By adopting the above technical solution, the fixed parts set on both sides of the rotating frame can be connected to the positioning plate, so that the angle of the rotating frame after rotation can be fixed.

[0018] Preferably, the fixing part also has an adjusting handle disposed on the side of the connecting rod and a control handle disposed on the side of the sliding rod. The end of the adjusting handle away from the control handle is provided with an arc surface, and the end of the control handle away from the adjusting handle is also provided with an arc surface.

[0019] By adopting the above technical solution, the control handle can be pulled closer to the adjustment handle, allowing the control handle to move the sliding rod inside the connecting rod, so that the fixing bolt can be retracted into the connecting rod.

[0020] Compared with the prior art, the beneficial effects of this utility model are: by providing a milling machine base, a worktable and a fixing part, the rotating frame can rotate along the rotating axis, thereby changing the rotation angle of the table. The sliding rod is embedded in the positioning plate and locked to it, thereby fixing the rotation angle of the table, increasing the workpiece's machinable angle, and thus improving the workpiece's processing efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this application;

[0022] Figure 2 This is a schematic diagram of the overall structure of this application;

[0023] Figure 3 This is a schematic diagram of the milling machine base structure of this application;

[0024] Figure 4 This is a schematic diagram of the connection structure between the workbench and the fixing part in this application;

[0025] Figure 5 This is a schematic cross-sectional view of the fixing part in this application;

[0026] Figure 6 This is a cross-sectional structural diagram of the fixing part of this application.

[0027] In the diagram: 1. Milling machine base; 101. Rotary shaft; 102. Positioning plate; 103. Positioning socket; 2. Worktable; 201. Rotary frame; 202. Rotary groove; 203. Table surface; 3. Fixing part; 301. Connecting rod; 302. Adjusting handle; 303. Slide groove; 304. Sliding rod; 305. Control handle; 306. Fixing bolt; 307. Connecting groove; 308. Spring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1

[0030] Please see Figure 1 , Figure 2 and Figure 3 This embodiment provides a technical solution: a precision feeding mechanism, including a milling machine base 1, a worktable 2, and a fixing part 3.

[0031] A rotating shaft 101 is provided at the top of the milling machine base 1, and a positioning plate 102 is provided at one end of the rotating shaft 101. The worktable 2 is rotatably mounted on the top of the milling machine base 1. A rotating frame 201 is provided on the top of the milling machine base 1, and a table 203 is provided on the top of the rotating frame 201. The rotating frame 201 rotates along the rotating shaft 101 to change the angle of the table 203. Fixing parts 3 are provided on both sides of the worktable 2. The fixing parts 3 have connecting rods 301 provided on the side of the worktable 2, and sliding rods are slidably provided inside the connecting rods 301. 304. The sliding rod 304 is engaged with the positioning plate 102. The sliding rod 304 slides and engages with the positioning plate 102 to fix the angle of the rotating frame 201 rotating laterally on the milling machine base 1 along the rotating shaft 101. The rotation angle of the table 203 can be changed by rotating the rotating frame 201 along the rotating shaft 101. The sliding rod 304 is embedded in the positioning plate 102 and engaged with it, thereby fixing the rotation angle of the table 203, increasing the workpiece's machinable angle, and thus improving the workpiece's machining efficiency.

[0032] Example 2

[0033] Please see Figure 4 , Figure 5 and Figure 6 This embodiment provides a technical solution: a precision feeding mechanism, including a worktable 2 and a fixing part 3.

[0034] A rotating groove 202 is provided at the bottom of the rotating frame 201. The rotating shaft 101 passes through the rotating groove 202 and is rotatably connected to it, allowing the rotating frame 201 to rotate along the rotating shaft 101, thereby changing the rotation angle of the table 203 on the milling machine base 1. A fixing bolt 306 is provided at the bottom of the sliding rod 304. Several positioning holes 103 are provided on the side of the positioning plate 102. The fixing bolt 306 is inserted into the positioning holes 103 and engaged with them. The fixing bolt 306 can be inserted into the positioning holes 103. Within the 3, the rotation angle of the worktable 2 on the milling machine base 1 can be fixed. A sliding groove 303 is provided inside the connecting rod 301, and the sliding rod 304 is embedded in the sliding groove 303 and slidably connected to it, allowing the sliding rod 304 to slide within the connecting rod 301. A connecting groove 307 is provided at the top of the sliding rod 304, and a spring 308 is provided inside the connecting groove 307. The spring 308 is located between the sliding rod 304 and the connecting rod 301, and the elastic force provided by the spring 308 can push the sliding rod 304 to slide within the connecting rod 301. Two fixing parts 3 are provided, and the two fixing parts 3 are mirror-symmetrically arranged on both sides of the rotating frame 201. Two positioning disks 102 are also provided, and the two positioning disks 102 are located on both sides of the rotating shaft 101. The positioning disks 102 abut against the fixing parts 3. The fixing parts 3 on both sides of the rotating frame 201 are connected to the positioning disks 102, so that the angle of the rotating frame 201 after rotation can be fixed. A connecting part 307 is provided on the side of the connecting rod 301. Adjust the handle 302. A control handle 305 is provided on the side of the sliding rod 304. The end of the adjustment handle 302 away from the control handle 305 is provided with an arc surface. The end of the control handle 305 away from the adjustment handle 302 is also provided with an arc surface. By pulling the control handle 305, the control handle 305 can be brought closer to the adjustment handle 302. When the control handle 305 moves, it can drive the sliding rod 304 to move within the connecting rod 301, so that the fixing bolt 306 can be retracted into the connecting rod 301.

[0035] Working principle: First, when using the milling machine, the workpiece to be processed is fixed to the top of the table 203 using an additional fixing device. During the processing of the workpiece, the control handle 305 can be pulled closer to the adjusting handle 302. This allows the control handle 305 to move the sliding rod 304 within the connecting rod 301, enabling the fixing pin 306 to be retracted into the connecting rod 301. This separates the fixing pin 306 from the positioning plate 102, allowing the rotating frame 201 to rotate along the rotating shaft 101. Then, the operator moves the adjusting handle 302 to change the position of the table 203 during milling. The rotation angle on the machine base 1 is adjusted so that when the rotation reaches the appropriate angle, the operator releases the control handle 305, thereby pushing the sliding rod 304 to slide within the connecting rod 301 by the elastic force provided by the spring 308. A fixing bolt 306 is provided at the bottom of the sliding rod 304. Several positioning holes 103 are provided on the side of the positioning plate 102. The fixing bolt 306 is inserted into the positioning hole 103 and engaged with it. By inserting the fixing bolt 306 into the positioning hole 103, the rotation angle of the worktable 2 on the milling machine base 1 can be fixed, increasing the workpiece's machinable angle and thus improving the workpiece's machining efficiency.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision feeding mechanism for mounting on a milling machine, characterized in that, include: A milling machine base having a rotating shaft horizontally disposed at the top of the milling machine base and a positioning plate disposed at one end of the rotating shaft; A worktable, which is rotatably mounted on top of a milling machine base, has a rotating frame rotatably mounted on top of the milling machine base and a table mounted on top of the rotating frame. The rotating frame rotates along a pivot axis to change the angle of the table. The fixing part is provided on both sides of the worktable. The fixing part has a connecting rod provided on the side of the worktable. A sliding rod is slidably provided inside the connecting rod. The sliding rod is engaged with the positioning plate. The sliding rod is engaged with the positioning plate to fix the angle of the rotating frame's transverse rotation on the milling machine base along the rotating axis.

2. The precision feeding mechanism according to claim 1, characterized in that: The worktable also has a rotating slot at the bottom of the rotating frame, through which the rotating shaft is rotatably connected.

3. The precision feeding mechanism according to claim 1, characterized in that: The fixing part has a fixing bolt set at the bottom of the sliding rod, and the side of the positioning plate has several positioning holes, in which the fixing bolt is inserted and engaged.

4. The precision feeding mechanism according to claim 1, characterized in that: The fixing part also has a groove formed inside the connecting rod, and the sliding rod is inserted into the groove and slidably connected thereto.

5. The precision feeding mechanism according to claim 4, characterized in that: The fixing part also has a connecting groove formed at the top of the sliding rod and a spring disposed inside the connecting groove, the spring being located between the sliding rod and the connecting rod.

6. The precision feeding mechanism according to claim 1, characterized in that: There are two fixing parts, which are arranged in a mirror image symmetrically on both sides of the rotating frame. There are also two positioning plates, which are located on both sides of the rotating shaft and abut against the fixing parts.

7. The precision feeding mechanism according to claim 1, characterized in that: The fixing part also has an adjustment handle provided on the side of the connecting rod and a control handle provided on the side of the sliding rod. The end of the adjustment handle away from the control handle is provided with an arc surface, and the end of the control handle away from the adjustment handle is also provided with an arc surface.

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