Four-axis rotary machining jig

Abstract

The utility model discloses a four-axis rotary machining jig. The four-axis rotary machining jig comprises a driving motor and a shell. A jig assembly is installed on the shell. The jig assembly comprises a rotating turntable, a fixed jig plate and a product jig plate; the rotating disc is connected to the output end of the driving motor; the fixed jig plate is fixed to the rotating turntable through a first group of four-axis bolts; the product jig plate is fixed to the fixed jig plate through a second group of four-axis bolts; the square formed by the distribution of the first group of four-axis bolts and the square formed by the distribution of the second group of four-axis bolts are coaxially arranged, and the connecting lines of any bolts of the two are intersected; the rotary turntable, the fixed jig plate and the product jig plate are coaxially arranged; the product jig plate is provided with a mounting convex part; and a pressing plate for pressing the product is arranged at the end part of the mounting convex part. According to the four-axis rotary machining jig, the axis symmetry precision after a product is installed can be improved, so that the alignment precision of each screw hole during product machining is guaranteed, and the machining precision of the product is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a four -axis rotation processing fixture. BACKGROUND

[0002] The traditional device for processing workpiece products is provided with a product mounting fixture at the output end of a driving motor, and then the product mounting fixture is driven by the driving motor to rotate the product, so that the processing equipment can process the product at multiple angles. The structure of the commonly used processing fixture is simple, the product is directly fixed to the fixture, the alignment accuracy of the axis of the fixture itself is low, and the installation angle of the product has certain error, thereby affecting the processing accuracy of the product. SUMMARY

[0003] The four-axis rotation processing fixture provided by the utility model solves the above-mentioned technical problems, and specifically adopts the following technical scheme:

[0004] A four-axis rotation processing fixture, comprising: a driving motor and a housing for mounting the driving motor; a fixture assembly for fixing a product for processing the product is mounted on the housing; the fixture assembly comprises: a rotating turntable for rotating the product, a fixed jig plate for positioning and fixing the product, and a product jig plate for fixedly connecting the product; the rotating turntable is connected to the output end of the driving motor; the fixed jig plate is fixed to the rotating turntable through a first set of four-axis bolts; the product jig plate is fixed to the fixed jig plate through a second set of four-axis bolts; a first square formed by the distribution of the first set of four-axis bolts and a second square formed by the distribution of the second set of four-axis bolts are coaxially arranged, and the first square coincides with the second square after rotating by 45 degrees; the rotating turntable, the fixed jig plate and the product jig plate are coaxially arranged; the product jig plate is provided with a mounting protrusion for sleeving the product; the end of the mounting protrusion is provided with a pressing plate for pressing the product.

[0005] Further, the end of the mounting protrusion is formed with a threaded hole; the pressing plate is fixed to the end of the mounting protrusion by penetrating the pressing plate and screwing into the threaded hole through a fixing screw.

[0006] Further, the rotating turntable is uniformly provided with four trapezoidal grooves in the circumferential direction; a trapezoidal slider is slidingly arranged in the trapezoidal groove; the trapezoidal slider is formed with a fixing hole; the fixed jig plate is uniformly provided with four first matching holes for matching the four fixing holes in the circumferential direction; the fixed jig plate is fixed to the rotating turntable by penetrating the corresponding first matching holes and screwing into the corresponding fixing holes through the four first set of four-axis bolts.

[0007] Further, the housing is formed with a through hole for the output end of the driving motor to protrude out; a support bearing for rotatingly supporting the output end of the driving motor is arranged in the hole wall of the through hole.

[0008] Further, the inner ring of the support bearing is fixedly connected to the outer periphery of the output end of the driving motor to rotate synchronously with the output end of the driving motor; the rotating disc is fixed to the inner ring of the support bearing; and the outer ring of the support bearing is fixed to the through hole by the hole wall.

[0009] Further, one side of the inner ring of the support bearing is circumferentially uniformly provided with a plurality of connecting holes; the rotating disc is formed with a plurality of second matching holes in the circumferential direction of the rotating disc for matching the connecting holes; and the rotating disc is fixed to the inner ring of the support bearing by a plurality of screws respectively penetrating through the corresponding second matching holes and being screwed into the corresponding connecting holes.

[0010] Further, the product jig plate is further provided with a heightening portion for heightening the product to avoid collision of the screw with the product jig plate during processing of the product; and the heightening portion is formed with a mounting protrusion.

[0011] Further, the mounting protrusion is in a strip shape, and the extension direction of the mounting protrusion is parallel to the side of the second square.

[0012] Further, a plurality of positioning pins for pre-positioning the product jig plate are arranged on the fixing jig plate; and a plurality of positioning holes for matching the positioning pins are formed on the product jig plate.

[0013] The four-axis rotary processing jig has the advantages that the first group of four-axis bolts and the second group of four-axis bolts are designed to have a secondary axis alignment effect between the fixing jig plate and the product jig plate, improve the axis symmetry precision after the product is installed, ensure the alignment precision of each screw hole during processing of the product, effectively reduce the installation angle error of the product, and thus ensure the processing precision of the product. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0015] Figure 1 is a schematic view of the four-axis rotary processing jig of the present application installing a product;

[0016] Figure 2 is a schematic view of the four-axis rotary processing jig of the present application removing a product and a pressing plate;

[0017] Figure 3 is Figure 2 a schematic view of the four-axis rotary processing jig in

[0018] Figure 4 isFigure 3 FIG. 4 is a schematic view of a four-axis rotary machining jig removing a fixed jig plate in FIG. 1;

[0019] Figure 5 is Figure 4 FIG. 5 is a schematic view of a four-axis rotary machining jig removing a rotary turntable in FIG. 1;

[0020] A four-axis rotary machining jig 10, a housing 11, a through hole 111, a rotary turntable 12, a trapezoidal groove 121, a second matching hole 122, a trapezoidal slider 13, a fixed hole 131, a fixed jig plate 14, a first matching hole 141, a product jig plate 15, a mounting convex part 151, a threaded hole 152, a heightening part 153, a pressing plate 16, a first group of four-axis bolts 17, a second group of four-axis bolts 18, a fixing screw 19, a support bearing 20, an inner ring 201, a connecting hole 2011, an outer ring 202, a product 100. DETAILED DESCRIPTION

[0021] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0022] As Figures 1 to 5 shown, a four-axis rotary assembly jig 10 of the present application includes a driving motor and a housing 11, and the driving motor is installed in the housing 11. A jig assembly is installed on the housing 11 for fixing a product 100 to process the product 100.

[0023] Specifically, the jig assembly comprises a rotating turntable 12, a fixed jig plate 14 and a product jig plate 15, the rotating turntable 12 is used for rotating the product 100, the fixed jig plate 14 is used for once calibration positioning and fixing of the product 100, and the product jig plate 15 is used for twice calibration fixing of the product 100. When installed, the rotating turntable 12 is connected to the output end of the driving motor, the fixed jig plate 14 is fixed to the rotating turntable 12 through the first group of four-axis bolts 17 to realize once four-axis calibration of the fixed jig plate 14 relative to the rotating turntable 12, and the product jig plate 15 is fixed to the fixed jig plate 14 through the second group of four-axis bolts 18 to realize twice four-axis calibration of the product jig plate 15 relative to the rotating turntable 12. The rotating turntable 12, the fixed jig plate 14 and the product jig plate 15 are coaxially arranged, so that the first square formed by the first group of four-axis bolts 17 and the second square formed by the second group of four-axis bolts 18 are coaxially arranged, and the first square coincides with the second square after rotating 45 degrees, so as to realize four-axis calibration. The product jig plate 15 is provided with a mounting protrusion 151 for sleeving the product 100, and the end of the mounting protrusion 151 is provided with a pressing plate 16 for pressing the product 100, so as to ensure the stability of the mounting structure of the product 100. The mounting protrusion 151 here is in a strip shape, and the extension direction thereof is parallel to the edge of the second square, so that the installation precision of the product 100 can be calibrated three times, and the installation and calibration precision is further improved.

[0024] Further, the product jig plate 15 is also provided with a raised portion 153, and the raised portion 153 is formed with the mounting protrusion 151. The product 100 can be raised by the raised portion 153 to avoid collision between the screws during assembly of the product 100 and the product jig plate 15.

[0025] Further, the fixed jig plate 14 is provided with a plurality of positioning pins 142 for pre-positioning the product jig plate 15, and the product jig plate 15 is formed with positioning holes for matching the positioning pins 142. The positioning pin 142 and the positioning hole structure can improve the installation efficiency of the jig, and also can improve the overall radial torsional strength of the jig structure.

[0026] As a specific embodiment, the end of the mounting protrusion 151 is formed with a threaded hole 152, and the pressing plate 16 is fixed to the end of the mounting protrusion 151 by fixing screws 19 penetrating through the pressing plate 16 and being screwed into the threaded hole 152. Such mounting structure is simple and reliable.

[0027] Optionally, the pressing plate 16 can adopt a rubber plate to ensure the pressing force of the product 100 and avoid scratching the product 100.

[0028] As a specific embodiment, the rotating disc 12 is uniformly distributed with four trapezoidal grooves 121 in the circumferential direction, and the trapezoidal slider 13 is slidingly arranged in the trapezoidal groove 121, and the trapezoidal slider 13 is formed with a fixing hole 131, and the fixing jig plate 14 is uniformly distributed with four first matching holes 141 for matching the four fixing holes 131 in the circumferential direction. In this way, during installation, the fixing jig plate 14 is fixed to the rotating disc 12 by penetrating the corresponding first matching hole 141 with the four first group four-axis bolts 17 and screwing into the corresponding fixing hole 131, the installation structure is simple, and the position of the trapezoidal slider 13 can be adjusted to adapt to different models of the fixing jig plate 14 and the product jig plate 15, thereby improving the universality of the jig as a whole.

[0029] As a specific embodiment, the shell 11 is formed with a through hole 111 for the output end of the driving motor to protrude out. The hole wall of the through hole 111 is provided with a support bearing 20 for rotatingly supporting the output end of the driving motor, thereby ensuring the accuracy of the rotating drive. The outer ring 202 of the support bearing 20 is fixed to the hole wall of the through hole 111, and the inner ring 201 of the support bearing 20 is fixedly connected to the outer periphery of the output end of the driving motor to rotate synchronously with the output end of the driving motor, and the rotating disc 12 is fixed to the inner ring 201 of the support bearing 20. Therefore, the rotating disc 12 rotates synchronously with the inner ring 201, and the rotating accuracy is higher.

[0030] Specifically, one side of the inner ring 201 of the support bearing 20 is uniformly distributed with a plurality of connecting holes 2011 in the circumferential direction, and the rotating disc 12 is formed with a plurality of second matching holes 122 for matching the connecting holes 2011 in the circumferential direction. During installation, the rotating disc 12 is fixed to the inner ring 201 of the support bearing 20 by penetrating the corresponding second matching hole 122 with a plurality of screws and screwing into the corresponding connecting hole 2011.

[0031] Therefore, the four-axis rotating machining jig described above has a secondary axis alignment effect between the fixing jig plate 14 and the product jig plate 15 through the design of the first group four-axis bolts 17 and the second group four-axis bolts 18, thereby improving the axis symmetry accuracy of the product 100 after installation, ensuring the alignment accuracy of each screw hole of the product 100 during machining, effectively reducing the installation angle error of the product 100, and thereby ensuring the machining accuracy of the product 100.

[0032] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the above examples do not limit the present application in any form, and any technical solution obtained by equivalent substitution or equivalent transformation falls within the protection scope of the present application.

Claims

1. A four-axis rotary machining fixture comprising: A driving motor and a housing for mounting the driving motor; A jig assembly for fixing a product for processing the product is mounted on the housing; characterized in that, The jig assembly comprises a rotating turntable for rotating the product, a fixed jig plate for positioning and fixing the product, and a product jig plate for fixing the product; The rotating turntable is connected to the output end of the driving motor; The fixed jig plate is fixed to the rotating turntable by a first set of four-axis bolts; The product jig plate is fixed to the fixed jig plate by a second set of four-axis bolts; The first set of four-axis bolts is distributed in a first square, and the second set of four-axis bolts is distributed in a second square, which are coaxially arranged, and the first square is rotated by 45 degrees to coincide with the second square; The rotating turntable, the fixed jig plate, and the product jig plate are coaxially arranged; The product jig plate is provided with a mounting protrusion for the product to be set; The end of the mounting protrusion is provided with a pressing plate for pressing the product.

2. The four-axis rotating processing jig according to claim 1, wherein The end of the mounting protrusion is formed with a threaded hole; The pressing plate is fixed to the end of the mounting protrusion by a fixing screw passing through the pressing plate and being screwed into the threaded hole.

3. The four-axis rotating processing jig according to claim 1, wherein The rotating turntable is uniformly distributed with four trapezoidal grooves in the circumferential direction; The trapezoidal grooves are slidably provided with trapezoidal sliders; The trapezoidal sliders are formed with fixing holes; The fixed jig plate is uniformly distributed with four first matching holes for matching the four fixing holes in the circumferential direction; The fixed jig plate is fixed to the rotating turntable by the first set of four-axis bolts passing through the corresponding first matching holes and being screwed into the corresponding fixing holes.

4. The four-axis rotating processing jig according to claim 1, wherein The housing is formed with a through hole for the output end of the driving motor to protrude out; The hole wall of the through hole is provided with a support bearing for rotatingly supporting the output end of the driving motor.

5. The four-axis rotating processing jig according to claim 4, wherein The inner ring of the support bearing is fixedly connected to the outer periphery of the output end of the driving motor to rotate synchronously with the output end of the driving motor; The rotating turntable is fixed to the inner ring of the support bearing; The outer ring of the support bearing is fixed to the hole wall of the through hole.

6. The four-axis rotating processing jig according to claim 5, wherein One side of the inner ring of the support bearing is uniformly distributed with a plurality of connecting holes in the circumferential direction; The rotating turntable is formed with a plurality of second matching holes for matching the connecting holes in the circumferential direction; The rotating turntable is fixed to the inner ring of the support bearing by a plurality of screws respectively passing through the corresponding second matching holes and being screwed into the corresponding connecting holes.

7. The four-axis rotating processing jig according to claim 1, wherein The product jig plate is further provided with a raising portion for raising the product to avoid collision between the screws during product processing and the product jig plate; The raising portion is formed with the mounting protrusion.

8. The four-axis rotary machining jig according to claim 1, wherein the mounting protrusions are in a strip shape, and the extending direction thereof is parallel to the side of the second square.

9. The four-axis rotary machining jig according to claim 1, wherein the fixed jig plate is provided with a plurality of positioning pins for pre-positioning the product jig plate; the product jig plate is formed with positioning holes for matching the positioning pins.

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