CNC product circle run-out detection jig

Abstract

The utility model provides a CNC product circle run-out detection jig, which comprises a jig base, a propulsion device, a propulsion device base, a measuring assembly, a CNC product rotating assembly and a measuring assembly moving assembly are arranged on the jig base, a sliding plate is embedded in the propulsion device base in a sliding manner, and the CNC product rotating assembly and the measuring assembly moving assembly are arranged on the CNC product circle run-out detection jig. The CNC product rotating assembly comprises a first fixing support and a second fixing support which are oppositely arranged in a spaced mode, the lower end of the first fixing support is fixed to the sliding plate, the lower end of the second fixing support is fixed to the jig base, and the propelling device is arranged on the side, away from the second fixing support, of the first fixing support; the measuring assembly moving assembly is arranged on one side of the CNC product rotating assembly in the length direction, and the measuring assembly is fixed to the end, close to the propelling device, of the measuring assembly moving assembly. According to the utility model, the detection is easy, the detection precision is ensured, and the accurate output of product detection data is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of CNC product detection, and particularly relates to a roundness runout detection fixture for CNC products. Background Art

[0002] An earlier method for detecting the roundness runout of CNC products was to use a three-coordinate measuring instrument to detect the products. The defect of this method is that the detection time is too long. Summary of the Utility Model

[0003] In view of the above problems, the utility model provides a roundness runout detection fixture for CNC products.

[0004] To achieve the above object, the utility model adopts the following technical solutions:

[0005] A roundness runout detection fixture for CNC products includes a fixture base, on which a propulsion device, a propulsion device base, a measurement assembly, a CNC product rotation assembly, and a measurement assembly moving assembly are provided. A slide plate is slidably embedded on the propulsion device base. The CNC product rotation assembly includes a first fixed support and a second fixed support that are relatively spaced apart. The lower end of the first fixed support is fixed on the slide plate, and the lower end of the second fixed support is fixed on the fixture base. The propulsion device is provided on one side of the first fixed support away from the second fixed support. The measurement assembly moving assembly is provided on one side in the length direction of the CNC product rotation assembly, and the measurement assembly is fixed at one end of the measurement assembly moving assembly close to the propulsion device.

[0006] Further, a thrust plate is provided on one side of the slide plate close to the propulsion device, and the thrust plate is fixedly connected to the slide plate. The propulsion device is fixed on the fixture base through a fixed base. The propulsion device includes a propulsion rod, and a hexagonal nut, a gasket, and a spring are sequentially penetrated from the fixed end to the free end of the propulsion rod. The other end of the propulsion rod vertically penetrates the thrust plate and is connected to the thrust plate through a nut.

[0007] Further, two stoppers are provided at intervals on one side of the propulsion device base away from the propulsion device. The CNC product to be detected is placed on the two stoppers. The propulsion device base is a hollow base with an incomplete opening at the top plate, and the slide plate is inserted into the propulsion device base.

[0008] Further, the CNC product rotation assembly includes a left rotation assembly and a right rotation assembly, and the CNC product to be detected is clamped between the left rotation assembly and the right rotation assembly.

[0009] Further, the left rotating assembly includes a left first bushing, a left second bushing, two left ball gaskets, and a left turntable. A plurality of balls are circumferentially embedded along the upper edges of the two left ball gaskets. One end of the left first bushing is inserted into the CNC product to be detected. One end of the sleeve of the left first bushing passes through the sleeve of the left second bushing and extends into the left turntable, and is fixedly connected to the left turntable. One of the left ball gaskets is arranged between the collar of the left first bushing and the collar of the left second bushing; the sleeve of the left second bushing is inserted into the through hole of the first fixed support, and the other gasket is placed between the end face of the sleeve of the left second bushing and the left turntable; the right rotating assembly includes a right first bushing, a right second bushing, two right ball gaskets, and a right turntable. A plurality of balls are circumferentially embedded along the upper edges of the two right ball gaskets. One end of the sleeve of the right first bushing is inserted into the sleeve of the right second bushing and extends into the right turntable, and is fixedly connected to the right turntable. One of the right ball gaskets is arranged between the collar of the right first bushing and the collar of the right second bushing; the sleeve of the right second bushing is inserted into the through hole of the second fixed support, and the other right ball gasket is placed between the end face of the sleeve of the right second bushing and the right turntable. The CNC product to be detected is clamped between the left first bushing and the right first bushing; a limiting groove is provided on the upper part of the circumferential side of the collar of the right first bushing, and a T-shaped limiting block is fixed on the right end face of the CNC product to be detected. The horizontal part of the T-shaped limiting block is placed in the limiting groove.

[0010] Further, the measuring assembly includes a digital display micrometer, a radial movable rod, an axial movable rod, and a radial movable rod fixing cylinder. The radial movable rod fixing cylinder is fixed on the upper end face of the moving assembly of the measuring assembly. One end of the radial movable rod passes through the radial movable rod fixing cylinder and abuts against the circumferential side wall of the CNC product to be detected. The free end of the measuring rod of the digital display micrometer passes through a fixed tube connected to the end of the radial movable rod fixing cylinder away from the CNC product rotating assembly and extends into the radial movable rod fixing cylinder to abut against the radial movable rod. A clamp is sleeved on the outer peripheral side of the fixed tube, and a spring is sleeved on the measuring rod inside the radial movable rod fixing cylinder; a fixing hole is provided on the circumferential outer side wall of the radial movable rod, and an L-shaped guiding groove is provided on the upper side wall of the radial movable rod fixing cylinder. The axial movable rod is inserted into the fixing hole from the L-shaped guiding groove.

[0011] Further, the measuring component moving component includes a main guide rail, two side guide rails, a dial indicator base, a left support plate, and a right support plate. The two side guide rails are symmetrically arranged on both sides of the main guide rail. The main guide rail and the two side guide rails are fixed between the left support plate and the right support plate. There are three groups of fixing holes oppositely arranged on the left support plate and the right support plate. There are 3 through holes on the dial indicator base corresponding to the three fixing holes on the left support plate. The left side of the main guide rail sequentially passes through the through hole on the dial indicator base and the fixing hole on the left support plate and then is rotatably connected to the left support plate. The right side of the main guide rail passes through the fixing hole on the right support plate and then is rotatably connected to the right support plate. The left sides of the two side guide rails sequentially pass through the through hole on the dial indicator base and the fixing hole on the left support plate and then are connected to the left support plate through a locking block. The right sides of the two side guide rails pass through the fixing hole on the right support plate and then are connected to the right support plate through a locking block. The dial indicator base is slidably connected to the main guide rail and the two side guide rails. The digital display dial indicator is fixed on the upper end surface of the dial indicator base.

[0012] Further, the right side of the main guide rail is rotatably connected to the right support plate through a bearing, and an activity handle is connected to the right end of the main guide rail.

[0013] Further, the measuring component moving component further includes two side fixing blocks and one main fixing block. The side fixing blocks and the main fixing block are fixed at the right port of the fixing hole on the dial indicator base. The left ends of the two side guide rails respectively pass through one side fixing block, and the left end of the main guide rail passes through the main fixing block.

[0014] The circular runout detection fixture for CNC products of the present utility model adjusts the testing method, uses a digital display dial indicator to test the workpiece, reduces the detection time, and enhances the testing efficiency. The present utility model is not only easy to detect but also ensures the detection accuracy and improves the accurate output of product detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a disassembled structural schematic diagram of the clamping fixture of the circular runout detection fixture for CNC products of the present utility model.

[0016] Figure 2 It is a three-dimensional assembled structural diagram of the clamping fixture of the circular runout detection fixture for CNC products of the present utility model.

[0017] Among them, 1-fixture base, 2-pusher device base, 3-slide plate, 4-first fixed support, 5-second fixed support, 6-thrust plate, 7-fixed base, 8-pusher rod, 9-hexagonal nut, 10-gasket, 11-stop block, 12-CNC product to be detected, 13-first left bushing, 14-second left bushing, 15-left ball gasket, 16-left turntable, 17-first right bushing, 18-second right bushing, 19-right ball gasket, 20-right turntable, 21-ball, 22-rotating handle, 23-T-shaped limit block, 24-digital display micrometer, 25-radial movable rod, 26-radial movable rod fixing cylinder, 27-fixed pipe, 28-clamp, 29-main guide rail, 30-side guide rail, 31-micrometer base, 32-left support plate, 33-right support plate, 34-locking block, 35-movable handle, 36-side fixed block, 37-main fixed block, 38-spring, 39-axial movable rod, 40-pin, 41-nut, 42-first fixed gasket. 43-second fixed gasket, 44-bearing, 45-first washer, 46-second washer, 251-fixing hole, 261-L-shaped guide groove, 171-limit groove. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way constitutes a limitation on the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] As Figures 1 - 2 shown, a roundness runout detection fixture for a CNC product includes a fixture base 1. A pusher device, a pusher device base 2, a measuring assembly, a CNC product rotating assembly, and a measuring assembly moving assembly are provided on the fixture base 1. A slide plate 3 is slidably embedded in the pusher device base 2. The CNC product rotating assembly includes a first fixed support 4 and a second fixed support 5 that are relatively spaced apart. The lower end of the first fixed support 4 is fixed to the slide plate 3, and the lower end of the second fixed support 5 is fixed to the fixture base 1. The pusher device is disposed on one side of the first fixed support 4 away from the second fixed support 5. The measuring assembly moving assembly is disposed on one side in the length direction of the CNC product rotating assembly, and the measuring assembly is fixed to one end of the measuring assembly moving assembly close to the pusher device.

[0020] It can be understood that by setting the propulsion device, the first fixed support 4 can be moved, and thus it can be applied to CNC products of different lengths; by setting the measuring component moving component, the roundness runout detection of different positions of the CNC product can be completed in one clamping.

[0021] Further, a thrust plate 6 is provided on one side of the slide plate 3 close to the propulsion device, and the thrust plate 6 is fixedly connected to the slide plate 3; the propulsion device is fixed to the fixture base 1 through a fixed base 7; the propulsion device includes a propulsion rod 8, and a hexagon nut 9, a gasket 10 and a spring 38 are sequentially arranged from the fixed end to the free end of the propulsion rod 8, and the other end of the propulsion rod 8 vertically penetrates the thrust plate 6 and is connected to the thrust plate 6 through a nut.

[0022] It can be understood that the propulsion rod 8 drives the slide plate 3 to drive the first fixed support 4 to move by pushing the thrust plate 6, and the setting of the spring 38 can drive the first fixed support 4 to move in the opposite direction.

[0023] Further, two stoppers 11 are provided at intervals on one side of the propulsion device base 2 away from the propulsion device; the CNC product to be detected is placed on the two stoppers 11; the propulsion device base 2 is a hollow base with an incomplete opening at the top plate, and the slide plate 3 is inserted into the propulsion device base 2.

[0024] It can be understood that the setting of the stoppers 11 ensures the stability of the clamping of the CNC product to be detected, and the structural setting of the propulsion device base 2 ensures the stability of the sliding of the slide plate 3.

[0025] Further, the CNC product rotating assembly includes a left rotating assembly and a right rotating assembly, and the CNC product 12 to be detected is clamped between the left rotating assembly and the right rotating assembly.

[0026] It can be understood that the left rotating assembly and the right rotating assembly drive the CNC product 12 to be detected to rotate.

[0027] Specifically, in this embodiment, the left rotating assembly includes a left first bushing 13, a left second bushing 14, two left ball gaskets 15 and a left turntable 16. A plurality of balls 21 are circumferentially embedded along the upper edge of the two left ball gaskets 15. One end of the left first bushing 13 is inserted into the CNC product 12 to be detected. One end of the sleeve of the left first bushing 13 passes through the sleeve of the left second bushing 14 and extends into the left turntable 16, and is fixedly connected to the left turntable 16. One of the left ball gaskets 15 is arranged between the collar of the left first bushing 13 and the collar of the left second bushing 14. The sleeve of the left second bushing 14 is inserted into the through hole of the first fixed support 4, and the other left ball gasket 15 is placed between the end face of the sleeve of the left second bushing 14 and the left turntable 16. The right rotating assembly includes a right first bushing 17, a right second bushing 18, two right ball gaskets 19 and a right turntable 20. A plurality of balls 21 are circumferentially embedded along the upper edge of the two right ball gaskets 19. One end of the sleeve of the right first bushing 17 is inserted into the sleeve of the right second bushing 18 and extends into the right turntable 20, and is fixedly connected to the right turntable 20. One of the right ball gaskets 19 is arranged between the collar of the right first bushing 17 and the collar of the right second bushing 18. The sleeve of the right second bushing 18 is inserted into the through hole of the second fixed support 5, and the other right ball gasket 19 is placed between the end face of the sleeve of the right second bushing 18 and the right turntable 20. A rotating handle 22 is provided on the right turntable 20 or the left turntable 16. The CNC product 12 to be detected is clamped between the left first bushing 13 and the right first bushing 17. On the upper part of the circumferential side of the collar of the right first bushing 17, a limit groove 171 is provided. On the right end face of the CNC product 12 to be detected, a T-shaped limit block 23 is fixed. The horizontal part of the T-shaped limit block 23 is placed in the limit groove 171.

[0028] Further, the measuring assembly includes a digital display micrometer 24, a radial movable rod 25, an axial movable rod 39 and a radial movable rod fixing cylinder 26. The radial movable rod fixing cylinder 26 is fixed on the upper end face of the moving assembly of the measuring assembly. One end of the radial movable rod 25 passes through the radial movable rod fixing cylinder 26 and abuts against the circumferential side wall of the CNC product 12 to be detected. The free end of the measuring rod of the digital display micrometer 24 passes through a fixed tube 27 connected to the end of the radial movable rod fixing cylinder 26 away from the CNC product rotating assembly and extends into the radial movable rod fixing cylinder 26 to abut against the radial movable rod 25. A clamp 28 is sleeved on the outer peripheral side of the fixed tube 27. A spring 38 is sleeved on the measuring rod inside the radial movable rod fixing cylinder 26. A fixing hole 251 is provided on the circumferential outer side wall of the radial movable rod 25. An L-shaped guiding groove 261 is provided on the upper side wall of the radial movable rod fixing cylinder 26. The axial movable rod 39 is inserted into the fixing hole 251 from the L-shaped guiding groove 261.

[0029] It can be understood that by telescoping and compressing the measuring end of the digital display micrometer 24 through the radial movable rod 25 in the direction perpendicular to the axis of the CNC product, the circular runout of the CNC product 12 to be detected is detected.

[0030] Further, the measuring assembly moving assembly includes a main guide rail 29, two side guide rails 30, a micrometer base 31, a left support plate 32 and a right support plate 33. The two side guide rails 30 are symmetrically arranged on both sides of the main guide rail 29. The main guide rail 29 and the two side guide rails 30 are fixed between the left support plate 32 and the right support plate 33. Three groups of fixing holes are oppositely arranged on the left support plate 32 and the right support plate 33. Three through holes corresponding to the three fixing holes 251 on the left support plate 32 are arranged on the micrometer base 31. The left side of the main guide rail 29 sequentially passes through the through hole on the micrometer base 31 and the fixing hole 251 on the left support plate 32 and then is rotatably connected to the left support plate 32. The right side of the main guide rail 29 passes through the fixing hole 251 on the right support plate 33 and then is rotatably connected to the right support plate 33. The left sides of the two side guide rails 30 sequentially pass through the through hole on the micrometer base 31 and the fixing hole 251 on the left support plate 32 and then are connected to the left support plate 32 through a locking block 34. The right sides of the two side guide rails 30 pass through the fixing hole 251 on the right support plate 33 and then are connected to the right support plate 33 through a locking block 34. The micrometer base 31 is slidably connected to the main guide rail 29 and the two side activities, and the digital display micrometer 24 is fixed on the upper end surface of the micrometer base 31.

[0031] The right side of the main guide rail 29 is rotatably connected to the right support plate 33 through a bearing, and a movable handle 35 is connected to the right end of the main guide rail 29.

[0032] The measuring assembly moving assembly further includes two side fixing blocks 36 and a main fixing block 37. The side fixing blocks 36 and the main fixing block 37 are fixed at the right port of the fixing hole on the micrometer base 31. The left ends of the two side guide rails 30 respectively pass through a side fixing block 36, and the left end of the main guide rail 29 passes through the main fixing block 37.

[0033] It can be understood that the micrometer base 31 slides along the main guide rail 29 and the side guide rails 30 to complete the circular runout detection of all positions of the product to be detected in one clamping.

[0034] Those of ordinary skill in the art should understand that the above are only specific embodiments of the present invention and do not limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A roundness runout detection fixture for CNC products, characterized in that, It includes a fixture base, on which a propulsion device, a propulsion device base, a measurement component, a CNC product rotation component and a measurement component movement component are provided. A slide plate is slidably embedded on the propulsion device base. The CNC product rotation component includes a first fixed support and a second fixed support that are relatively spaced apart. The lower end of the first fixed support is fixed on the slide plate, and the lower end of the second fixed support is fixed on the fixture base. The propulsion device is arranged on one side of the first fixed support away from the second fixed support; the measurement component movement component is arranged on one side in the length direction of the CNC product rotation component, and the measurement component is fixed at one end of the measurement component movement component close to the propulsion device.

2. The roundness runout detection fixture for the CNC product according to claim 1, wherein, A thrust plate is provided on the side of the slide plate close to the propulsion device, and the thrust plate is fixedly connected to the slide plate; the propulsion device is fixed on the fixture base through a fixed base; the propulsion device includes a propulsion rod, and a hexagonal nut, a gasket and a spring are sequentially penetrated from the fixed end to the free end of the propulsion rod. The other end of the propulsion rod vertically penetrates the thrust plate and is connected to the thrust plate through a nut.

3. The CNC product circular runout detection fixture according to claim 2, wherein, Two stoppers are spaced apart on the side of the propulsion device base away from the propulsion device; the CNC product to be detected is placed on the two stoppers; the propulsion device base is a hollow base with an incomplete open top plate, and the slide plate is inserted into the propulsion device base.

4. The roundness runout detection fixture for the CNC product according to claim 3, characterized in that, The CNC product rotation component includes a left rotation component and a right rotation component, and the CNC product to be detected is clamped between the left rotation component and the right rotation component.

5. The roundness runout detection fixture for the CNC product according to claim 4, wherein, The left rotating assembly includes a left first bushing, a left second bushing, two left ball gaskets and a left turntable. A plurality of balls are circumferentially embedded along the upper edges of the two left ball gaskets. One end of the left first bushing is inserted into the CNC product to be detected. One end of the sleeve of the left first bushing passes through the sleeve of the left second bushing and extends into the left turntable, and is fixedly connected to the left turntable. One of the left ball gaskets is disposed between the collar of the left first bushing and the collar of the left second bushing. The sleeve of the left second bushing is inserted into the through hole of the first fixed support, and the other gasket is placed between the end face of the sleeve of the left second bushing and the left turntable. The right rotating assembly includes a right first bushing, a right second bushing, two right ball gaskets and a right turntable. A plurality of balls are circumferentially embedded along the upper edges of the two right ball gaskets. One end of the sleeve of the right first bushing is inserted into the sleeve of the right second bushing and extends into the right turntable, and is fixedly connected to the right turntable. One of the right ball gaskets is disposed between the collar of the right first bushing and the collar of the right second bushing. The sleeve of the right second bushing is inserted into the through hole of the second fixed support, and the other right ball gasket is placed between the end face of the sleeve of the right second bushing and the right turntable. The CNC product to be detected is clamped between the left first bushing and the right first bushing. An anti - rotation groove is provided on the upper part of the circumferential side of the collar of the right first bushing, and a T - shaped anti - rotation block is fixed on the right end face of the CNC product to be detected. The transverse part of the T - shaped anti - rotation block is placed in the anti - rotation groove.

6. The roundness runout detection fixture for the CNC product according to claim 5, wherein The measuring assembly includes a digital display micrometer, an axially movable rod, a radially movable rod and a radially movable rod fixing cylinder. The radially movable rod fixing cylinder is fixed on the upper end face of the moving assembly of the measuring assembly. One end of the radially movable rod passes through the radially movable rod fixing cylinder and abuts against the circumferential side wall of the CNC product to be detected. The free end of the measuring rod of the digital display micrometer passes through a fixed tube connected to the end of the radially movable rod fixing cylinder away from the CNC product rotating assembly and extends into the radially movable rod fixing cylinder to abut against the radially movable rod. A clamp is provided on the outer peripheral side of the fixed tube, and a spring is provided on the measuring rod located inside the radially movable rod fixing cylinder. A fixing hole is provided on the circumferential outer side wall of the radially movable rod, and an L - shaped guiding groove is provided on the upper side wall of the radially movable rod fixing cylinder. The axially movable rod is inserted into the fixing hole from the L - shaped guiding groove.

7. The roundness runout detection fixture for the CNC product according to claim 6, wherein, The measuring component moving component includes a main guide rail, two side guide rails, a micrometer base, a left support plate and a right support plate. The two side guide rails are symmetrically arranged on both sides of the main guide rail. The main guide rail and the two side guide rails are fixed between the left support plate and the right support plate. Three groups of fixing holes are oppositely arranged on the left support plate and the right support plate. Three through holes corresponding to the three fixing holes on the left support plate are arranged on the micrometer base. The left side of the main guide rail sequentially passes through the through hole on the micrometer base and the fixing hole on the left support plate and then is rotatably connected to the left support plate. The right side of the main guide rail passes through the fixing hole on the right support plate and then is rotatably connected to the right support plate. The left sides of the two side guide rails sequentially pass through the through hole on the micrometer base and the fixing hole on the left support plate and then are connected to the left support plate through a locking block. The right sides of the two side guide rails pass through the fixing hole on the right support plate and then are connected to the right support plate through a locking block. The micrometer base is slidably connected to the main guide rail and the two side guide rails. The digital display micrometer is fixed on the upper end surface of the micrometer base.

8. The roundness runout detection fixture for the CNC product according to claim 7, wherein, The right side of the main guide rail is rotatably connected to the right support plate through a bearing, and a movable handle is connected to the right end of the main guide rail.

9. The CNC product circular runout detection fixture according to claim 8, characterized in that, The measuring component moving component further includes two side fixing blocks and a main fixing block. The side fixing blocks and the main fixing block are fixed at the right port of the fixing hole on the micrometer base. The left ends of the two side guide rails respectively pass through one side fixing block, and the left end of the main guide rail passes through the main fixing block.

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