Positioning tool structure for vacuum pump shell machining

Abstract

The utility model provides a vacuum pump casing machining positioning tool structure which comprises a base, U-shaped supporting plates are fixedly installed on the two sides of the top end of the base, a vacuum pump casing is erected between the two U-shaped supporting plates, liftable U-shaped rods are arranged at the top ends of the two U-shaped supporting plates, arc-shaped pressing blocks are fixedly installed at the bottom ends of the U-shaped rods, and the arc-shaped pressing blocks are fixedly installed at the bottom ends of the U-shaped rods. Fixing blocks are fixedly installed on the side faces of the two U-shaped supporting plates, and two L-shaped frames are symmetrically connected to the side faces of the fixing blocks in a sliding mode. According to the positioning tool, the arc-shaped pressing block is driven by the two liftable U-shaped rods to move downwards, the vacuum pump shell is fixed between the two U-shaped supporting plates, the T-shaped column is driven by the two movable L-shaped frames to move, the T-shaped column is inserted into the vacuum pump shell, and the vacuum pump shell is further fixed; and the machining stability of the vacuum pump shell is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to vacuum pump casing technical field relates to the positioning frock structure of vacuum pump casing processing. BACKGROUND

[0002] The vacuum pump casing is one of important parts of vacuum pump, and the internal equipment is encapsulated through the vacuum pump casing.

[0003] According to the public number "CN221160086U", a kind of vacuum pump casing clamp is disclosed, it is related to jig technical field, including workbench and casing body, workbench upper surface is used to place casing body, casing body both sides are equipped with clamping mechanism;Clamping mechanism includes clamping assembly and pressing assembly, clamping assembly includes the accommodating cavity opened in the inside of workbench, accommodating cavity both ends are equipped with rotatable coaxial two-way lead screw, the casing body of different sizes and models is clamped, when screwing bolt, limit plate will be moved, the thickness of the support plate of different models of casing body is not same, by adjusting bolt, limit plate can be moved to be able to fix the support plate of different thickness.

[0004] The above-mentioned vacuum pump casing clamp can fix the vacuum pump casing, but it is not fixed from the inside, which affects the stability of vacuum pump casing processing, therefore, we designed the positioning frock structure of vacuum pump casing processing. SUMMARY

[0005] The utility model discloses a positioning frock structure of vacuum pump casing processing aims at providing the positioning frock structure of vacuum pump casing processing to solve the problem in the background art.

[0006] The utility model discloses a positioning frock structure of vacuum pump casing processing can be realized through the following technical scheme: positioning frock structure of vacuum pump casing processing, including base, the both sides of base top are equipped with the U type support board of fixed installation, and the vacuum pump casing is set up between two U type support boards, and the top of two U type support boards is equipped with the U type rod of liftable, and the bottom of U type rod is equipped with the arc pressure block of fixed installation, and the side of two U type support boards is equipped with fixed block, and the side of fixed block is equipped with two L type frames of symmetrical sliding connection, and the end of two L type frames is equipped with the T type column of vacuum pump casing end head place adaptation of fixed installation.

[0007] In the positioning frock structure of vacuum pump casing processing described above, the bottom of the U type rod is provided with a cavity, the inside of the cavity is connected with a horizontal plate, and the bottom end of the U type rod extends into the inside of the cavity and is fixedly connected with the top end of the horizontal plate.

[0008] In the positioning tool structure for vacuum pump shell machining, the top ends of the transverse plates are connected with support rods, the bottom ends of the support rods are fixedly connected with the bottom end of the cavity, the top ends of the support rods are fixedly connected with the top end of the cavity, trapezoidal screws are threadedly connected with the center of the top end and the center of the bottom end of the cavity, and the trapezoidal screws are threadedly connected with the center of the transverse plate.

[0009] In the positioning tool structure for vacuum pump shell machining, the bottom of the trapezoidal screw is fixedly provided with a first bevel gear, the bottom end of the cavity is fixedly provided with a servo motor, the output shaft of the servo motor is fixedly provided with a second bevel gear, and the second bevel gear is meshedly connected with the first bevel gear.

[0010] In the positioning tool structure for vacuum pump shell machining, a plurality of heat dissipation holes are formed in one side of the cavity, and dustproof nets are fixedly installed in the heat dissipation holes.

[0011] In the positioning tool structure for vacuum pump shell machining, two symmetrical electric sliding rails are fixedly installed on the side surface of the fixed block, sliding seats are slidably connected with the surfaces of the electric sliding rails, and the other end of the L-shaped frame is fixedly connected with the top portions of the sliding seats.

[0012] Compared with the prior art, the positioning tool structure for vacuum pump shell machining has the following advantages: the positioning tool is driven by two liftable U-shaped rods to move the arc-shaped pressing blocks downward, the vacuum pump shell is fixed between the two U-shaped support plates, the T-shaped column is moved by two movable L-shaped frames, the T-shaped column is inserted into the vacuum pump shell, the vacuum pump shell is further fixed, and the stability of the vacuum pump shell machining is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic view of the positioning tool structure for vacuum pump shell machining.

[0014] Figure 2 is a sectional structure schematic view of the U-shaped support plate of the positioning tool structure for vacuum pump shell machining.

[0015] Figure 3 is a sectional structure schematic view of the positioning tool structure for vacuum pump shell machining. Figure 1 is a local enlarged view of A in the positioning tool structure for vacuum pump shell machining.

[0016] In the drawings, 1 is a base, 2 is a U-shaped support plate, 3 is a heat dissipation hole, 4 is a T-shaped column, 5 is a U-shaped rod, 6 is an arc-shaped pressing block, 7 is a vacuum pump shell, 8 is a fixed block, 9 is an L-shaped frame, 10 is a cavity, 11 is a transverse plate, 12 is a support rod, 13 is a trapezoidal screw, 14 is a first bevel gear, 15 is a second bevel gear, 16 is a servo motor, 17 is an electric sliding rail, and 18 is a sliding seat. Detailed Implementation

[0017] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0018] like Figures 1-3 As shown, the positioning fixture structure for processing the vacuum pump housing of this utility model includes a base 1. U-shaped support plates 2 are fixedly installed on both sides of the top of the base 1. A vacuum pump housing 7 is supported between the two U-shaped support plates 2. A liftable U-shaped rod 5 is provided at the top of each of the two U-shaped support plates 2. An arc-shaped pressure block 6 is fixedly installed at the bottom of the U-shaped rod 5. A fixing block 8 is fixedly installed on the side of each of the two U-shaped support plates 2. Two L-shaped frames 9 are symmetrically slidably connected to the side of the fixing block 8. A T-shaped column 4 that matches the end of the vacuum pump housing 7 is fixedly installed at the end of each of the two L-shaped frames 9.

[0019] Specifically, the positioning fixture uses two liftable U-shaped rods 5 to move the arc-shaped pressure block 6 downward, fixing the vacuum pump housing 7 between the two U-shaped support plates 2. It also uses two movable L-shaped frames 9 to move the T-shaped column 4, so that the T-shaped column 4 is inserted into the vacuum pump housing 7, further fixing the vacuum pump housing 7 and improving the stability of the vacuum pump housing 7 processing.

[0020] like Figure 1 , Figure 2 and Figure 3 As shown, the positioning fixture structure for machining the vacuum pump housing of this utility model has a cavity 10 at the bottom of the U-shaped rod 5, and a horizontal plate 11 is nested inside the cavity 10. The bottom end of the U-shaped rod 5 extends into the cavity 10 and is fixedly connected to the top end of the horizontal plate 11.

[0021] Support rods 12 are inserted and connected to both sides of the top of the horizontal plate 11. The bottom end of the support rod 12 is fixedly connected to the bottom end of the cavity 10, and the top end of the support rod 12 is fixedly connected to the top end of the cavity 10. Trapezoidal screws 13 are threadedly connected to the center of the top end and the center of the bottom end of the cavity 10. The trapezoidal screws 13 are threadedly connected to the center of the horizontal plate 11.

[0022] A first bevel gear 14 is fixedly installed at the bottom of the trapezoidal lead screw 13, a servo motor 16 is fixedly installed at the bottom of the cavity 10, and a second bevel gear 15 is fixedly installed on the output shaft of the servo motor 16. The second bevel gear 15 is meshed with the first bevel gear 14.

[0023] Specifically, the second bevel gear 15 is driven to rotate by the servo motor 16, the second bevel gear 15 meshes with the first bevel gear 14, thereby driving the trapezoidal screw 13 to rotate, the horizontal plate 11 is driven to lift by the trapezoidal screw 13, the U-shaped rod 5 is driven to lift by the horizontal plate 11, and the bottom end of the U-shaped rod 5 is in contact with and fixed to the bottom end of the vacuum pump shell 7.

[0024] A plurality of heat dissipation holes 3 are formed on one side of the cavity 10, and a dust screen is fixedly installed in each of the heat dissipation holes 3.

[0025] The fixed block 8 is fixedly installed with two symmetrical electric sliding rails 17 on the side surface, the surface of the two electric sliding rails 17 is slidably connected with a sliding seat 18, and the top of the two sliding seats 18 is fixedly connected with the other end of the L-shaped frame 9.

[0026] Specifically, the sliding seat 18 is driven to move by the electric sliding rail 17, the L-shaped frame 9 is driven to move by the movement of the sliding seat 18, and the T-shaped column 4 is driven to move by the L-shaped frame 9, so that the T-shaped column 4 is inserted into the inside of the vacuum pump shell 7 and fixed.

[0027] In the specific implementation, when the positioning tool structure is used, first, the vacuum pump shell 7 is placed on the top end of the two U-shaped support plates 2, then the servo motor 16 is turned on, the second bevel gear 15 is driven to rotate by the servo motor 16, the second bevel gear 15 meshes with the first bevel gear 14, thereby driving the trapezoidal screw 13 to rotate, the horizontal plate 11 is driven to lift by the trapezoidal screw 13, the U-shaped rod 5 is driven to lift by the horizontal plate 11, the arc-shaped pressing block 6 at the bottom end of the U-shaped rod 5 is used to limit and fix the vacuum pump shell 7, then the electric sliding rail 17 is turned on, the sliding seat is driven to move by the electric sliding rail 17, the L-shaped frame 9 is driven to move by the movement of the sliding seat, and the T-shaped column 4 at the end of the L-shaped frame 9 is inserted into the inside of the vacuum pump shell 7, so as to further fix the vacuum pump shell 7 and improve the stability of the vacuum pump shell 7.

[0028] The contents not described in detail in the specification belong to the prior art known to those skilled in the art. The specific embodiments described in the specification are only illustrative of the spirit of the utility model. Those skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the utility model or exceed the scope defined by the appended claims.

Claims

1. A positioning tool structure for vacuum pump shell machining, comprising a base (1), both sides of the top end of the base (1) are fixedly provided with U-shaped support plates (2), and a vacuum pump shell (7) is arranged between the two U-shaped support plates (2), characterized in that, The top end of two U-shaped support plates (2) is provided with a liftable U-shaped rod (5), the bottom end of the U-shaped rod (5) is fixedly installed with an arc-shaped pressing block (6), the side of two U-shaped support plates (2) is fixedly installed with a fixed block (8), the side of the fixed block (8) is symmetrically and slidably connected with two L-shaped frames (9), the end of two L-shaped frames (9) is fixedly installed with a T-shaped column (4) matched with the end of the vacuum pump shell (7).

2. The positioning jig structure for vacuum pump casing machining according to claim 1, wherein The bottom of the U-shaped rod (5) is provided with a cavity (10), the inside of the cavity (10) is nested and connected with a horizontal plate (11), the bottom end of the U-shaped rod (5) extends to the inside of the cavity (10) and is fixedly connected with the top end of the horizontal plate (11).

3. The positioning jig structure for vacuum pump casing machining according to claim 2, characterized by, The top end of the horizontal plate (11) is connected with a support rod (12), the bottom end of the support rod (12) is fixedly connected with the bottom end of the cavity (10), the top end of the support rod (12) is fixedly connected with the top end of the cavity (10), the top end center and the bottom end center of the cavity (10) are threadedly connected with a trapezoidal lead screw (13), the trapezoidal lead screw (13) is threadedly connected with the center of the horizontal plate (11).

4. The positioning jig structure for vacuum pump casing machining according to claim 3, wherein The bottom of the trapezoidal lead screw (13) is fixedly installed with a first bevel gear (14), the bottom end of the cavity (10) is fixedly installed with a servo motor (16), the output shaft of the servo motor (16) is fixedly installed with a second bevel gear (15), the second bevel gear (15) is meshedly connected with the first bevel gear (14).

5. The positioning tool structure for machining of a vacuum pump casing according to claim 4, characterized in that, The side of the cavity (10) is provided with a plurality of heat dissipation holes (3), the inside of the plurality of heat dissipation holes (3) is fixedly installed with a dustproof net.

6. The positioning tool structure for vacuum pump casing machining according to claim 1, characterized in that, The side of the fixed block (8) is fixedly installed with two symmetrically arranged electric sliding rails (17), the surface of two electric sliding rails (17) is slidably connected with a sliding seat (18), the top of two sliding seats (18) is fixedly connected with the other end of the L-shaped frame (9).

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