Impeller precision machining clamp

Abstract

The utility model relates to the technical field of impeller machining, in particular to an impeller precision machining clamp which comprises a workbench and a supporting unit, the supporting unit comprises a bottom plate, a supporting plate, a pull rod, a limiting plate, a lead screw, a locking button, a round rod, a pressing plate, a connecting assembly and an auxiliary assembly, the pressing plate is fixedly connected with the round rod, and the auxiliary assembly is arranged above the workbench. The impeller is placed on the bottom plate, the pull rod is moved to slide in the supporting plate, the pressing plate is driven to make contact with the outer contour of the impeller, then the locking button is rotated, locking is conducted through the characteristics of threads and the bottom of the supporting plate, sliding of the pull rod is limited, and the limiting plate is used for limiting the moving distance of the pull rod and preventing the pull rod from being separated from the supporting plate. The connecting assembly is used for supporting the bottom plate to rotate, the auxiliary assembly is used for clamping the top of the impeller, the impeller is supported in such a manner, the condition of oscillation during rotary machining of the impeller is avoided, and the machining precision and quality are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of impeller machining technology, and in particular to a precision machining fixture for impellers. Background Technology

[0002] With the continuous development of the automotive manufacturing industry, the manufacturing precision requirements for automotive parts are also getting higher and higher. The high-end equipment currently used for impeller processing is expensive, the production cost is large, and it is inconvenient to install and maintain.

[0003] A patent application with publication number CN 110052866 A discloses a special fixture for impeller machining, including a spindle, a positioning block, an air distribution cushion block, a clamping cylinder, a clamping arm, and a centering mandrel. The worktable is equipped with a spindle, the spindle is equipped with a connecting plate, the connecting plate is equipped with a positioning block, the spindle is equipped with a centering mandrel, the support block is equipped with an air distribution cushion block, the air distribution cushion block is equipped with a clamping cylinder, and the clamping cylinder is equipped with a clamping arm. The structure is reasonable, improves machining accuracy, increases product qualification rate, reduces the probability of scrap, is easy to install and maintain, has low manufacturing cost, and has low requirements for the machine tool to be installed.

[0004] However, in the aforementioned prior art, the clamping arm presses and fixes the machine from top to bottom, but the impeller is prone to vibration during the rotation process, which affects the accuracy and quality of the process. Utility Model Content

[0005] The purpose of this utility model is to provide a precision machining fixture for impellers, which aims to solve the problem in the prior art where the clamping arm presses and fixes the impeller from top to bottom, but vibrations easily occur during impeller rotation machining, affecting the machining accuracy and quality.

[0006] To achieve the above objectives, this utility model provides a precision machining fixture for impellers, including a worktable and a support unit. The support unit includes a base plate, a support plate, a pull rod, a limiting plate, a lead screw, a locking button, a round rod, a pressure plate, a connecting assembly, and auxiliary components. The support unit is disposed above the worktable. The base plate is disposed above the worktable. The connecting assembly is connected to both the worktable and the base plate. The support plate is fixedly connected to the base plate and located on the outer side wall of the base plate. The limiting plate is slidably connected to the support plate and located on the inner side of the support plate. The side wall has the following features: the pull rod is fixedly connected to the support plate and located on one side of the support plate, with the pull rod and the support plate slidingly engaged; the lead screw is fixedly connected to the pull rod and located below the pull rod; the support plate has a strip-shaped hole that slidesly engages with the lead screw; the locking button is threadedly connected to the lead screw and located on the outer side wall of the lead screw; the round rod is fixedly connected to the pull rod and located above the pull rod; the pressure plate is fixedly connected to the round rod and located above the round rod; and the auxiliary components are positioned above the worktable.

[0007] The connecting assembly includes a spindle and an arc ring. The spindle is fixedly connected to the base plate and located below the base plate. The worktable has a circular hole that is rotatably engaged with the spindle. The arc ring is fixedly connected to the spindle and located on the outer side wall of the spindle, and the arc ring is rotatably engaged with the worktable.

[0008] The connecting component includes a support ring, which is fixedly connected to the base plate and located below the base plate, and the support ring is rotatably engaged with the worktable.

[0009] The auxiliary components include a mounting bracket, a cylinder, and a clamping arm. The mounting bracket is fixedly connected to the worktable and located above the worktable. The cylinder is fixedly connected to the mounting bracket and located above the mounting bracket. The clamping arm is fixedly connected to the cylinder and located at the output end of the cylinder.

[0010] The auxiliary component further includes a pressing shaft and two limiting rings. The pressing shaft is rotatably connected to the pressing arm and is located below the pressing arm. The two limiting rings are fixedly connected to the pressing shaft and are located on the outer side wall of the pressing shaft, respectively.

[0011] This utility model discloses a precision machining fixture for impellers. The impeller is placed on a base plate, and the pull rod is moved to slide within a support plate, causing the pressure plate to contact the outer contour of the impeller. Then, the locking knob is rotated, utilizing the thread characteristics to lock the pull rod to the bottom of the support plate, restricting its sliding. A limiting plate restricts the distance the pull rod moves, preventing it from detaching from the support plate. A connecting assembly supports the rotation of the base plate, and an auxiliary assembly clamps the top of the impeller. This method of supporting the impeller prevents vibration during machining, effectively improving machining accuracy and quality. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a structural schematic diagram of the impeller precision machining fixture of this utility model.

[0014] Figure 2 This is a right view of the impeller precision machining fixture of this utility model.

[0015] Figure 3 This is the utility model Figure 2 A sectional view along line AA.

[0016] Figure 4 This is the utility model Figure 3 Enlarged view of the local structure at point B.

[0017] 101-Workbench, 102-Base plate, 103-Support plate, 104-Pull rod, 105-Limit plate, 106-Screw rod, 107-Locking button, 108-Round rod, 109-Pressure plate, 110-Spindle, 111-Arc ring, 112-Support ring, 113-Mounting bracket, 114-Cylinder, 115-Pressure arm, 116-Extrusion shaft, 117-Limit ring, 118-Strip hole, 119-Round hole. Detailed Implementation

[0018] Please see Figures 1 to 4 ,in, Figure 1 This is a structural schematic diagram of the precision machining fixture for impellers according to this utility model. Figure 2 This is a right view of the precision machining fixture for impellers according to this utility model. Figure 3 This is the utility model Figure 2 AA-line sectional view, Figure 4 This is the utility model Figure 3 Enlarged view of the local structure at point B.

[0019] This utility model provides a precision machining fixture for impellers, including a worktable 101 and a support unit. The support unit includes a base plate 102, a support plate 103, a pull rod 104, a limiting plate 105, a lead screw 106, a locking button 107, a round rod 108, a pressure plate 109, a connecting assembly, and an auxiliary assembly. The connecting assembly includes a main shaft 110, an arc-shaped ring 111, and a support ring 112. The auxiliary assembly includes a mounting bracket 113, a cylinder 114, a clamping arm 115, a pressing shaft 116, and two limiting rings 117. The support plate 103 has a strip-shaped hole 118, and the worktable 101 has a round hole 119.

[0020] The support unit is disposed above the workbench 101; the base plate 102 is disposed above the workbench 101; the connecting assembly is connected to the workbench 101 and the base plate 102 respectively; the support plate 103 is fixedly connected to the base plate 102 and is located on the outer side wall of the base plate 102; the limiting plate 105 is slidably connected to the support plate 103 and is located on the inner side wall of the support plate 103; the pull rod 104 is fixedly connected to the support plate 103 and is located on one side of the support plate 103, and the pull rod 104 is slidably connected to the support plate 103. In this configuration, the lead screw 106 is fixedly connected to the pull rod 104 and is located below the pull rod 104. The support plate 103 has a strip hole 118, which is slidably engaged with the lead screw 106. The locking button 107 is threadedly connected to the lead screw 106 and is located on the outer side wall of the lead screw 106. The round rod 108 is fixedly connected to the pull rod 104 and is located above the pull rod 104. The pressure plate 109 is fixedly connected to the round rod 108 and is located above the round rod 108. The auxiliary assembly is positioned above the worktable 101.

[0021] In this embodiment, the impeller is placed on the base plate 102, and the pull rod 104 is moved to slide within the support plate 103, causing the pressure plate 109 to contact the outer contour of the impeller. Then, the locking button 107 is rotated to lock the pull rod 104 using the characteristics of the thread and the bottom of the support plate 103, thus restricting the sliding of the pull rod 104. The limiting plate 105 is used to limit the distance the pull rod 104 moves, preventing the pull rod 104 from disengaging from the support plate 103. The connecting assembly is used to support the rotation of the base plate 102, and the auxiliary assembly is used to clamp the top of the impeller. By supporting the impeller in this way, vibration during impeller rotation processing is avoided, effectively improving the processing accuracy and quality.

[0022] Furthermore, the spindle 110 is fixedly connected to the base plate 102 and located below the base plate 102. The worktable 101 has a circular hole 119, which is rotatably engaged with the spindle 110. The arc-shaped ring 111 is fixedly connected to the spindle 110 and located on the outer side wall of the spindle 110, and the arc-shaped ring 111 is rotatably engaged with the worktable 101.

[0023] In this embodiment, the main shaft 110 is used to support the rotation of the base plate 102, and the arc ring 111 is used to restrict the vertical movement of the rotating shaft to ensure the normal rotation of the base plate 102.

[0024] Furthermore, the support ring 112 is fixedly connected to the base plate 102 and is located below the base plate 102, and the support ring 112 is rotatably engaged with the worktable 101.

[0025] In this embodiment, the support ring 112 is used to improve the stability of the rotation of the base plate 102 and reduce the occurrence of shaking.

[0026] Furthermore, the mounting bracket 113 is fixedly connected to the workbench 101 and located above the workbench 101, the cylinder 114 is fixedly connected to the mounting bracket 113 and located above the mounting bracket 113, and the clamping arm 115 is fixedly connected to the cylinder 114 and located at the output end of the cylinder 114.

[0027] In this embodiment, the air source from the machine tool is connected to the cylinder 114, which drives the clamping arm 115 to move downward and clamp the top of the impeller, making it easier for the operator to perform precision machining.

[0028] Furthermore, the extrusion shaft 116 is rotatably connected to the clamping arm 115 and is located below the clamping arm 115. The two limiting rings 117 are fixedly connected to the extrusion shaft 116 and are respectively located on the outer side wall of the extrusion shaft 116.

[0029] In this embodiment, the extrusion shaft 116 and the limiting ring 117 are used to support the rotation of the impeller and improve the overall stability of the fixture.

[0030] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments, and equivalent variations made in accordance with the claims of this application, still fall within the scope of this application.

Claims

1. A precision machining fixture for impellers, comprising a worktable, characterized in that, It also includes a support unit, which is disposed above the worktable; The support unit includes a base plate, a support plate, a pull rod, a limiting plate, a lead screw, a locking button, a round rod, a pressure plate, a connecting assembly, and an auxiliary assembly. The base plate is positioned above the worktable. The connecting assembly is connected to both the worktable and the base plate. The support plate is fixedly connected to the base plate and located on the outer side wall of the base plate. The limiting plate is slidably connected to the support plate and located on the inner side wall of the support plate. The pull rod is fixedly connected to the support plate and located on one side of the support plate, and the pull rod is slidably engaged with the support plate. The lead screw is fixedly connected to the pull rod and located below the pull rod. The support plate has a slotted hole that slidably engages with the lead screw. The locking button is threadedly connected to the lead screw and located on the outer side wall of the lead screw. The round rod is fixedly connected to the pull rod and located above the pull rod. The pressure plate is fixedly connected to the round rod and located above the round rod. The auxiliary assembly is positioned above the worktable.

2. The impeller precision machining fixture as described in claim 1, characterized in that, The connecting assembly includes a spindle and an arc-shaped ring. The spindle is fixedly connected to the base plate and located below the base plate. The worktable has a circular hole that is rotatably engaged with the spindle. The arc-shaped ring is fixedly connected to the spindle and located on the outer side wall of the spindle, and the arc-shaped ring is rotatably engaged with the worktable.

3. The impeller precision machining fixture as described in claim 2, characterized in that, The connecting assembly includes a support ring, which is fixedly connected to the base plate and located below the base plate, and the support ring is rotatably engaged with the worktable.

4. The impeller precision machining fixture as described in claim 3, characterized in that, The auxiliary components include a mounting bracket, a cylinder, and a clamping arm. The mounting bracket is fixedly connected to the worktable and located above the worktable. The cylinder is fixedly connected to the mounting bracket and located above the mounting bracket. The clamping arm is fixedly connected to the cylinder and located at the output end of the cylinder.

5. The impeller precision machining fixture as described in claim 4, characterized in that, The auxiliary component also includes a pressing shaft and two limiting rings. The pressing shaft is rotatably connected to the pressing arm and is located below the pressing arm. The two limiting rings are fixedly connected to the pressing shaft and are located on the outer side wall of the pressing shaft, respectively.

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