A milling machine for scroll processing

Abstract

The utility model relates to milling machine technical field provides a kind of milling machine for vortex processing.It includes spindle box, first track, milling head and workbench, the spindle box is slidably assembled on the first track along vertical direction;Two milling heads are connected on the spindle box, the orientation of two milling heads is opposite, milling cutter is assembled on two milling heads and is milled to process;The quantity of workbench is two, two milling heads are respectively oriented two workbenches;The workbench includes second track, third track and table top, the second track and the third track are vertically distributed in horizontal direction, the third track is slidably assembled on the second track, and the table top is slidably assembled on the third track.The milling machine for vortex processing can synchronously mirror milling processing to two workpieces, ensure the consistency of milling machine processing effect in vortex disc milling processing process.

Description

Technical Field

[0001] This utility model relates to the field of milling machine technology, and in particular to a milling machine for vortex machining. Background Technology

[0002] The scroll plate is the main component of the scroll vacuum pump. It consists of two disc-shaped structures with symmetrical involute helical grooves on the disc surface, namely the stationary scroll plate and the moving scroll plate. The involute helical grooves of the two are assembled together in an alternating manner.

[0003] The main difficulty in machining the scroll plate lies in the machining of the involute spiral groove. It is necessary to ensure the consistency of the involute spiral groove on the stationary scroll plate and the moving scroll plate in order to ensure its airtightness during operation.

[0004] In the prior art, the involute helical grooves on the stationary scroll plate and the moving scroll plate are machined separately. However, due to fatigue during use, the accuracy of the milling machine changes with the length of time it is used. Machining the stationary scroll plate and the moving scroll plate separately will cause changes in the accuracy of the milling machine during the machining process, resulting in differences between the two involute helical grooves and affecting the final assembly effect. Utility Model Content

[0005] The purpose of this invention is to provide a milling machine for scroll machining, which can perform mirror milling on two workpieces simultaneously, ensuring the consistency of the milling effect during scroll milling.

[0006] This utility model provides a milling machine for vortex machining, comprising:

[0007] The spindle box and the first track, wherein the spindle box is slidably mounted on the first track in the vertical direction;

[0008] The milling head has two milling heads connected to the spindle box. The two milling heads are facing opposite directions, and each milling head is equipped with a milling cutter for milling.

[0009] The worktable is provided in two forms, with the two milling heads facing the two worktables respectively.

[0010] The workbench includes a second track, a third track, and a table surface. The second track and the third track are vertically distributed in the horizontal direction. The third track is slidably mounted on the second track, and the table surface is slidably mounted on the third track.

[0011] Preferably, the spindle box includes an output shaft, and the two milling heads are respectively fixedly connected to both ends of the output shaft.

[0012] Preferably, the two worktables are located on both sides of the spindle box, close to the two milling heads.

[0013] Preferably, a first drive motor is provided at one end of the first track, and a first threaded rod is fixedly connected to the drive end of the first drive motor, and the spindle box is threadedly sleeved on the first threaded rod.

[0014] Preferably, the milling machine for vortex machining further includes a base, and both the first track and the second track are fixed on the base.

[0015] Preferably, one end of the second track is provided with a second drive motor, the drive end of the second drive motor is fixedly connected to a second threaded rod, and the third track is threadedly sleeved on the second threaded rod.

[0016] Preferably, the two worktables share the same second track, and a second drive motor is provided at both ends of the second track.

[0017] Preferably, the spindle box is located directly above the center of the second track.

[0018] Preferably, one end of the third track is provided with a third drive motor, the drive end of the third drive motor is fixedly connected to a third threaded rod, and the platform threaded connection is sleeved on the third threaded rod.

[0019] Preferably, the milling machine for vortex machining further includes an external control computer, which synchronously controls the movement of the two worktables.

[0020] The technical solution of this utility model connects two milling heads on the same spindle box to ensure the synchronicity of the movement between the two milling heads; the opposite orientation of the two milling heads makes their processing effects mirror images of each other; the two worktables are used to fix the two workpieces respectively, so as to realize the synchronous milling of mirror structure on the two workpieces, ensuring the consistency of the milling machine processing effect during the processing, especially for the processing effect of involute spiral grooves on the scroll plate. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is an isometric view of a milling machine for vortex machining according to this utility model;

[0023] Figure 2 for Figure 1Assembly drawing of the spindle box in a milling machine for vortex machining;

[0024] Figure 3 for Figure 1 Assembly drawing of the third threaded rod in a milling machine for vortex machining;

[0025] Figure 4 for Figure 1 Assembly drawing of the second threaded rod in a milling machine for vortex machining;

[0026] Figure 5 for Figure 1 Assembly drawing of the second track in a milling machine for vortex machining.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Spindle box; 11. Output shaft; 2. Milling head; 3. Worktable; 31. Second track; 32. Third track; 33. Table surface; 34. Second drive motor; 35. Third drive motor; 36. Second threaded rod; 37. Third threaded rod; 4. First track; 41. First drive motor; 42. First threaded rod; 5. Base. Detailed Implementation

[0029] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Combination Figures 1 to 5 As shown, the milling machine for vortex machining provided by this utility model includes a spindle box 1, a milling head 2, and a worktable 3.

[0033] Combination Figures 1 to 5 As shown, the spindle box 1 includes an output shaft 11. Two milling heads 2 are connected to the spindle box 1. The two milling heads 2 are fixedly connected to the two ends of the output shaft 11 respectively. The rotation directions of the two milling heads 2 are also mirror images of each other. A gear is provided on the middle section of the output shaft 11 to connect to the power source. The two milling heads 2 are oriented in opposite directions. Milling cutters are mounted on both milling heads 2 for milling operations.

[0034] The spindle box 1 is slidably mounted on the first track 4 in the vertical direction. The spindle box 1 can move up and down in the vertical direction along the first track 4. One end of the first track 4 is provided with a first drive motor 41 fixed on the first track 4. The drive end of the first drive motor 41 is fixedly connected to a first threaded rod 42. The spindle box 1 is threadedly sleeved on the first threaded rod 42. The first drive motor 41 drives the first threaded rod 42 to rotate, and the spindle box 1 is driven to slide on the first track 4 by the threaded connection.

[0035] There are two worktables 3, with two milling heads 2 facing the two worktables 3 respectively. The two worktables 3 are located on both sides of the spindle box 1, close to the two milling heads (2). Each worktable 3 includes a second track 31, a third track 32 and a table surface 33. The first track 4, the second track 31 and the third track 32 are perpendicular to each other. The three tracks have a total of three degrees of freedom in three directions to ensure the flexibility of processing. The second track 31 and the third track 32 are perpendicular to each other in the horizontal direction.

[0036] The third track 32 is slidably mounted on the second track 31. One end of the second track 31 is provided with a second drive motor 34 fixedly connected to the second track 31. The drive end of the second drive motor 34 is fixedly connected with a second threaded rod 36. The third track 32 is threadedly sleeved on the second threaded rod 36. The second drive motor 34 drives the second threaded rod 36 to rotate, and the threaded connection drives the third track 32 to slide on the second track 31. The two worktables 3 share the same second track 31. Both ends of the second track 31 are provided with second drive motors 34, and the spindle box 1 is located directly above the center of the second track 31. The length direction of the output shaft 11 is consistent with the length direction of the second track 31.

[0037] The tabletop 33 is slidably mounted on the third track 32. One end of the third track 32 is provided with a third drive motor 35. The drive end of the third drive motor 35 is fixedly connected to a third threaded rod 37. The tabletop 33 is threadedly fitted onto the third threaded rod 37. The third drive motor 35 drives the third threaded rod 37 to rotate, and the tabletop 33 is driven to slide on the third track 32 by the threaded connection.

[0038] The first track 4 and the second track 31 are both fixed on the base 5, which can collect the cutting fluid.

[0039] Working process: The material or workpiece to be processed is fixed on the worktable 3 by a fixture. Workpieces are fixed on both worktables 3. For example, a stationary scroll and a moving scroll are fixed on the two worktables 3 respectively. The external control computer of the milling machine controls the first drive motor 41, the second drive motor 34, the third drive motor 35 and other drive components to carry out milling. The two milling heads 2 simultaneously mill the workpieces on the two worktables 3, and the external control computer synchronously controls the two worktables 3 to move in a mirror image to achieve synchronous processing of mirror features.

[0040] In this embodiment, by connecting two milling heads 2 on the same spindle box 1, the synchronicity of the movement between the two milling heads 2 is ensured; the opposite orientation of the two milling heads 2 makes their processing effects mirror-image; the two worktables 3 are used to fix the two workpieces respectively, so as to realize the synchronous milling of mirror structure on the two workpieces, ensuring the consistency of the milling machine processing effect during the processing, especially for the involute spiral groove on the scroll plate, the processing effect is excellent, and the processed scroll plate has good airtightness.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A milling machine for vortex machining, characterized in that, include: The spindle box (1) and the first track (4) are slidably mounted on the first track (4) in the vertical direction; Milling head (2), two milling heads (2) are connected to the spindle box (1), the two milling heads (2) are facing opposite directions, and both milling heads (2) are equipped with milling cutters for milling. The number of worktables (3) is two, and the two milling heads (2) are respectively facing the two worktables (3); The workbench (3) includes a second track (31), a third track (32) and a table surface (33). The second track (31) and the third track (32) are vertically distributed in the horizontal direction. The third track (32) is slidably mounted on the second track (31), and the table surface (33) is slidably mounted on the third track (32).

2. The milling machine for vortex machining according to claim 1, characterized in that, The spindle box (1) includes an output shaft (11), and the two milling heads (2) are respectively fixedly connected to the two ends of the output shaft (11).

3. The milling machine for vortex machining according to claim 2, characterized in that, The two worktables (3) are located on both sides of the spindle box (1) near the two milling heads (2).

4. The milling machine for vortex machining according to claim 1, characterized in that, One end of the first track (4) is provided with a first drive motor (41), and the drive end of the first drive motor (41) is fixedly connected to a first threaded rod (42). The spindle box (1) is threadedly sleeved on the first threaded rod (42).

5. The milling machine for vortex machining according to claim 1, characterized in that, It also includes a base (5), on which the first track (4) and the second track (31) are both fixed.

6. The milling machine for vortex machining according to claim 1, characterized in that, The second track (31) is provided with a second drive motor (34) at one end, and the drive end of the second drive motor (34) is fixedly connected to a second threaded rod (36). The third track (32) is threadedly sleeved on the second threaded rod (36).

7. The milling machine for vortex machining according to claim 6, characterized in that, The two worktables (3) share the same second track (31), and the two ends of the second track (31) are equipped with second drive motors (34).

8. The milling machine for vortex machining according to claim 7, characterized in that, The spindle box (1) is located directly above the center of the second track (31).

9. The milling machine for vortex machining according to claim 1, characterized in that, One end of the third track (32) is provided with a third drive motor (35), and the drive end of the third drive motor (35) is fixedly connected to a third threaded rod (37). The platform (33) is threadedly sleeved on the third threaded rod (37).

10. The milling machine for vortex machining according to claim 1, characterized in that, It also includes an external control computer, which synchronously controls the movement of the two workbenches (3).

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