Impeller milling clamp

Abstract

The utility model discloses an impeller milling clamp, which relates to the technical field of impeller processing and comprises a base plate, a groove is arranged at the top of the base plate, a sliding rod is mounted on the opposite inner walls of the groove, and two sliding blocks are sleeved on the sliding rod in a sliding manner. In the use process, firstly, an impeller is placed on the base plate, then a first rotary knob is rotated, the first rotary knob rotates to enable a winding roller to rotate through a rotary rod, the winding roller rotates to enable an elastic arc-shaped block to move through a pull rope, an annular plate and a sliding block, then the impellers with different inner diameters are fixed, and then a second rotary knob is rotated to enable the winding roller to rotate. A second rotary knob rotates to enable four threaded blocks to move at the same time through a lead screw, a first bevel gear and a second bevel gear, then four arc-shaped clamping plates get close to one another, the impellers with different diameters are fixed, meanwhile, the impellers can be subjected to double limiting through elastic arc-shaped blocks and the arc-shaped clamping plates, and the clamping effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of impeller processing, in particular to an impeller milling fixture. Background Art

[0002] Traditional impeller production generally uses a mold to cast the blade shape, a lathe clamps the outer circle to turn the first step, and the inner hole to turn the second step, and then conducts a dynamic balancing test. The above method has a long cycle time for producing finished impeller castings, high cost, and low precision and life. The new process currently uses a lathe to turn the bar material, clamp the processed semi-finished product into a fixture for positioning, and use a five-axis machining center to mill the impeller.

[0003] In the prior art, the impeller milling fixture disclosed in the patent with publication number CN212169680U repeatedly clamps impellers with the same diameter and different curvature rates through a chassis, a clamping body, a height sleeve, an elastic sleeve, a positioning groove, a locking bolt, an annular clamping block, a support block, a clamping groove, an adjustment block, a positioning block, a first fixing bolt, a second fixing bolt, and an impeller. However, when in use, only impellers with the same diameter can be clamped, which has certain limitations and is inconvenient to use. In view of the shortcomings of the prior art, the utility model discloses an impeller milling fixture to solve the above problems. Utility Model Content

[0004] The purpose of the present application is to provide an impeller milling fixture to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: an impeller milling fixture, comprising a chassis, a groove is provided on the top of the chassis, a slide bar is installed on the opposite inner wall of the groove, two sliders are slidably sleeved on the slide bar, the sides of the two sliders are provided with elastic mechanisms, the tops of the two sliders are installed with elastic arc blocks, the sides of the two sliders are installed with pull ropes, the opposite inner walls of the groove are installed with annular plates, the opposite inner walls of the groove are rotatably installed with a rotating rod, and one end of the rotating rod is installed with a first A knob, a fixing mechanism matched with the rotating rod is arranged on the chassis, a winding roller is sleeved on the rotating rod, the other ends of the two pull ropes respectively pass through the two annular plates and are installed on the winding roller, four movable grooves are opened on the top of the chassis, threaded blocks are arranged in the four movable grooves, a avoidance hole matched with the rotating rod is opened on the side of one of the threaded blocks, arc-shaped clamping plates are installed on the sides of the four threaded blocks, and a driving mechanism for moving the four threaded blocks simultaneously is arranged on the chassis.

[0006] Preferably, the fixing mechanism includes a fixing cavity opened on the chassis, a ratchet is sleeved on the rotating rod, a movable rod is rotatably installed relative to the inner wall of the fixing cavity, a third knob is installed at one end of the movable rod, a pawl matched with the ratchet is sleeved on the movable rod, a blocking plate is installed on the side inner wall of the fixing cavity, the bottom plate of the blocking plate is abutted against the top of the pawl, and an elastic unit is provided at the bottom of the pawl.

[0007] Preferably, the elastic unit comprises an elastic sheet mounted on the bottom of the pawl, and the other end of the elastic sheet is mounted on the inner wall of the side portion of the fixing cavity.

[0008] Preferably, the driving mechanism includes screw rods rotatably installed on the relative inner walls of the four movable grooves, one end of one of the screw rods is installed with a second knob, the four threaded blocks are respectively threadedly sleeved on the four screw rods, a transmission cavity is opened on the chassis, one end of the four screw rods extends into the transmission cavity and are respectively installed with a first bevel gear, a driven rod is rotatably installed on the bottom inner wall of the transmission cavity, a second bevel gear is installed on the top of the driven rod, and the four first bevel gears are all meshed with the second bevel gear.

[0009] Preferably, a fixing threaded hole is provided at the bottom of the chassis, a fixing bolt is installed in the inner thread of the fixing threaded hole, and an end of the fixing bolt is tightly pressed against one of the screw rods.

[0010] Preferably, the elastic mechanism comprises a spring mounted on a side of the slider, and the other end of the spring is mounted on an inner wall of a side of the groove.

[0011] Preferably, partitions are installed on the opposite inner walls of the groove, and buffer pads are installed on the sides of the partitions that are away from each other.

[0012] In summary, the technical effects and advantages of the utility model are:

[0013] 1. In the utility model, when in use, the impeller is first placed on the chassis, and the elastic arc block is placed in the hole in the middle of the impeller. Then the first knob is turned. The rotation of the first knob causes the winding roller to rotate through the rotating rod. The rotation of the winding roller causes the elastic arc block to move through the pull rope, the annular plate and the slider, thereby fixing the impellers with different inner diameters. Then the second knob is turned. The rotation of the second knob causes the four threaded blocks to move simultaneously through the screw rod, the first bevel gear and the second bevel gear, thereby making the four arc clamping plates approach each other, thereby fixing the impellers with different diameters. At the same time, the impeller can be doubly limited by the elastic arc block and the arc clamping plate, and the clamping effect is better.

[0014] 2. In the utility model, the ratchet, the movable rod, the third knob, the pawl, the elastic sheet and the blocking plate are arranged to facilitate fixing the rotating rod, thereby preventing the rotating rod from rotating itself and causing the slider to reset under the action of the spring. The fixing bolt is arranged to facilitate fixing the screw rod, thereby preventing the screw rod from rotating during use and causing the arc-shaped clamping plate to move and affect the clamping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 A schematic diagram of a three-dimensional structure of the first viewing angle in the embodiment of the present application

[0017] Figure 2 A partially cutaway three-dimensional structural diagram of an embodiment of the present application

[0018] Figure 3 for Figure 2 Enlarged structural diagram of point A in the middle

[0019] Figure 4 for Figure 2 Schematic diagram of the partially enlarged structure.

[0020] In the figure: 1, chassis 2, slider 3, elastic arc block 4, spring 5, pull rope 6, rotating rod 7, winding roller 8, first knob 9, ratchet 10, movable rod 11, pawl 12, elastic sheet 13, screw rod 14, second knob 15, threaded block 16, arc clamping plate 17, first bevel gear 18, second bevel gear 19, partition 20, third knob 21, fixing bolt. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example: Reference Figure 1-4The impeller milling fixture shown in the figure comprises a chassis 1, a groove is provided on the top of the chassis 1, a slide bar is installed on the opposite inner wall of the groove, two sliders 2 are slidably sleeved on the slide bar, the sides of the two sliders 2 are provided with elastic mechanisms, the tops of the two sliders 2 are installed with elastic arc blocks 3, the sides of the two sliders 2 are installed with pull ropes 5, the opposite inner walls of the groove are installed with annular plates, the opposite inner walls of the groove are rotatably installed with a rotating rod 6, one end of the rotating rod 6 is installed with a first knob 8, and the chassis 1 is provided with a plurality of movable parts. A fixing mechanism matched with the rotating rod 6 is provided, and a winding roller 7 is sleeved on the rotating rod 6. The other ends of the two pull ropes 5 respectively pass through the two annular plates and are installed on the winding roller 7. Four movable grooves are provided on the top of the chassis 1, and threaded blocks 15 are provided in the four movable grooves. A avoidance hole matched with the rotating rod 6 is provided on the side of one of the threaded blocks 15, and arc-shaped clamping plates 16 are installed on the sides of the four threaded blocks 15. A driving mechanism that enables the four threaded blocks 15 to move simultaneously is provided on the chassis 1.

[0023] By means of the above structure, when in use, the impeller is first placed on the chassis 1, and the elastic arc block 3 is placed in the hole in the middle of the impeller, and then the first knob 8 is turned. The rotation of the first knob 8 will cause the rotating rod 6 to rotate, and the rotation of the rotating rod 6 will cause the winding roller 7 to rotate. The rotation of the winding roller 7 will reel in the pull rope 5. The reeling of the pull rope 5 will cause the slider 2 to move through the annular plate, and the movement of the slider 2 will cause the elastic arc block 3 to move, thereby fixing the impellers with different inner diameters, and then the four threaded blocks 15 are moved at the same time through the driving mechanism, thereby making the four arc clamps 16 approach each other, thereby fixing the impellers with different diameters. At the same time, through the setting of the elastic arc block 3 and the arc clamp 16, the impeller can be doubly limited, and the clamping effect is better.

[0024] like Figure 4 As shown, the fixing mechanism includes a fixing cavity opened on the chassis 1, a ratchet 9 is sleeved on the rotating rod 6, a movable rod 10 is rotatably installed on the relative inner wall of the fixing cavity, a third knob 20 is installed at one end of the movable rod 10, a pawl 11 adapted to the ratchet 9 is sleeved on the movable rod 10, a blocking plate is installed on the side inner wall of the fixing cavity, the bottom plate of the blocking plate abuts against the top of the pawl 11, and an elastic unit is arranged at the bottom of the pawl 11. The advantage of such an arrangement is that the rotating rod 6 can be easily fixed by arranging the ratchet 9, the movable rod 10, the third knob 20, the pawl 11 and the blocking plate.

[0025] Specifically, the counterclockwise rotation of the rotating rod 6 will cause the ratchet 9 to rotate counterclockwise, and the counterclockwise rotation of the ratchet 9 will squeeze the pawl 11. The pawl 11 will be forced to evade under the action of the movable rod 10. When the rotating rod 6 stops rotating, the pawl 11 will reset under the action of the elastic unit. When the elastic arc block 3 abuts against the inner hole of the impeller, the rotating rod 6 cannot continue to rotate counterclockwise. At the same time, the pawl 11 will block the ratchet 9 under the action of the blocking plate, so that it cannot rotate, thereby fixing the rotating rod 6 and preventing the rotating rod 6 from rotating itself. When the rotating rod 6 needs to be rotated again, the third knob 20 is rotated first. The rotation of the third knob 20 will cause the movable rod 10 to rotate. The rotation of the movable rod 10 will cause the pawl 11 to evade, thereby releasing the fixation of the rotating rod 6.

[0026] like Figure 4 As shown, the elastic unit includes an elastic sheet 12 installed at the bottom of the pawl 11, and the other end of the elastic sheet 12 is installed on the side inner wall of the fixed cavity. The advantage of this arrangement is that through the arrangement of the elastic sheet 12, when the pawl 9 does not squeeze the pawl 11, the pawl 11 is reset under the action of the elastic sheet 12.

[0027] like Figure 2-Figure 3 As shown, the driving mechanism includes screw rods 13 rotatably mounted on the inner walls relative to each other of four movable grooves, one end of one of the screw rods 13 is mounted with a second knob 14, four threaded blocks 15 are respectively threadedly sleeved on the four screw rods 13, a transmission cavity is opened on the chassis 1, one end of the four screw rods 13 extends into the transmission cavity and is respectively mounted with a first bevel gear 17, a driven rod is rotatably mounted on the bottom inner wall of the transmission cavity, a second bevel gear 18 is mounted on the top of the driven rod, and the four first bevel gears 17 are all meshed with the second bevel gear 18. The advantage of such an arrangement is that, through the arrangement of the screw rod 13, the second knob 14, the first bevel gear 17, the driven rod and the second bevel gear 18, it is convenient to make the four threaded blocks 15 move simultaneously.

[0028] Specifically, turning the second knob 14 will cause one of the screw rods 13 to rotate, and the rotation of one of the screw rods 13 will cause one of the second bevel gears 17 to rotate, and the rotation of one of the second bevel gears 17 will cause the second bevel gear 18 to rotate, and the rotation of the second bevel gear 18 will cause the other three screw rods 13 to rotate, thereby causing the four screw rods 13 to rotate simultaneously, and the simultaneous rotation of the screw rods 13 will cause the four threaded blocks 15 to move simultaneously, and then cause the four arc-shaped clamping plates 16 to move simultaneously, thereby limiting and fixing the impellers of different diameters.

[0029] like Figure 4As shown, a fixing threaded hole is provided at the bottom of the chassis 1, and a fixing bolt 21 is installed in the inner thread of the fixing threaded hole. The end of the fixing bolt 21 is tightly pressed against one of the screw rods 13. The advantage of such a setting is that the screw rod 13 can be easily fixed by setting the fixing bolt 21, so as to avoid the screw rod 13 rotating during use, causing the arc clamping plate 16 to move and affect the clamping effect.

[0030] like Figure 3 As shown, the elastic mechanism includes a spring 4 installed on the side of the slider 2, and the other end of the spring 4 is installed on the inner wall of the side of the groove. The advantage of this arrangement is that, through the arrangement of the spring 4, when the pull rope 5 does not pull the slider 2, the slider 2 is reset under the action of the spring 4, thereby resetting the elastic arc block 3.

[0031] like Figure 3 As shown, partitions 19 are installed on the relative inner walls of the groove, and buffer pads are installed on the sides of the partitions 19 that are away from each other. The advantage of this arrangement is that the setting of the partitions 19 can avoid the different distances between the two sliders 2 when they are reset, and the setting of the buffer pads can achieve a certain buffering effect, thereby reducing the vibration generated when the slider 2 is reset.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An impeller milling fixture, comprising a chassis (1), characterized in that: The top of the chassis (1) is provided with a groove, the opposite inner wall of the groove is provided with a slide bar, two sliders (2) are slidably sleeved on the slide bar, the sides of the two sliders (2) are provided with elastic mechanisms, the tops of the two sliders (2) are provided with elastic arc blocks (3), the sides of the two sliders (2) are provided with pull ropes (5), the opposite inner walls of the groove are provided with annular plates, the opposite inner walls of the groove are provided with a rotating rod (6) rotatably provided on the opposite inner wall of the groove, one end of the rotating rod (6) is provided with a first knob (8), and the chassis (1) is provided with a knob (9) adapted to the rotating rod (6). The invention relates to a fixing mechanism, wherein a winding roller (7) is sleeved on the rotating rod (6), the other ends of the two pull ropes (5) respectively penetrate the two annular plates and are mounted on the winding rollers (7), the top of the chassis (1) is provided with four movable grooves, and threaded blocks (15) are arranged in the four movable grooves, a side of one of the threaded blocks (15) is provided with an avoidance hole matched with the rotating rod (6), and the sides of the four threaded blocks (15) are installed with arc-shaped clamping plates (16), and the chassis (1) is provided with a driving mechanism for moving the four threaded blocks (15) simultaneously.

2. The impeller milling fixture according to claim 1, characterized in that: The fixing mechanism comprises a fixing cavity opened on the chassis (1), a ratchet (9) is sleeved on the rotating rod (6), a movable rod (10) is rotatably mounted on the inner wall relative to the fixing cavity, a third knob (20) is mounted on one end of the movable rod (10), a pawl (11) matched with the ratchet (9) is sleeved on the movable rod (10), a blocking plate is mounted on the inner wall of the side of the fixing cavity, the bottom plate of the blocking plate is in contact with the top of the pawl (11), and an elastic unit is arranged at the bottom of the pawl (11).

3. The impeller milling fixture according to claim 2, characterized in that: The elastic unit comprises an elastic sheet (12) mounted on the bottom of the pawl (11), and the other end of the elastic sheet (12) is mounted on the inner wall of the side of the fixing cavity.

4. The impeller milling fixture according to claim 1, characterized in that: The driving mechanism comprises screw rods (13) rotatably mounted on the inner walls opposite to each other of the four movable grooves, one end of one of the screw rods (13) being mounted with a second knob (14), and four threaded blocks (15) being respectively threadedly sleeved on the four screw rods (13). A transmission cavity is provided on the chassis (1), one end of the four screw rods (13) extending into the transmission cavity and being respectively mounted with a first bevel gear (17), a driven rod being rotatably mounted on the inner wall of the bottom of the transmission cavity, a second bevel gear (18) being mounted on the top of the driven rod, and the four first bevel gears (17) are all meshed with the second bevel gear (18).

5. The impeller milling fixture according to claim 4, characterized in that: A fixing threaded hole is provided at the bottom of the chassis (1), a fixing bolt (21) is installed in the inner thread of the fixing threaded hole, and the end of the fixing bolt (21) is tightly pressed against one of the screw rods (13).

6. The impeller milling fixture according to claim 1, characterized in that: The elastic mechanism comprises a spring (4) mounted on the side of the slider (2), and the other end of the spring (4) is mounted on the inner wall of the side of the groove.

7. The impeller milling fixture according to claim 1, characterized in that: Partition plates (19) are installed on the opposite inner walls of the groove, and buffer pads are installed on the sides of the partition plates (19) that are away from each other.

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