EDM composite angle jig

Abstract

The utility model discloses an EDM composite angle jig which comprises a base, a repeated positioning sleeve piece is installed on the base, a rotating shaft is arranged on the base, a rotating body is rotatably installed on the rotating shaft, a positioning fixing hole is formed in the outer wall of the rotating body, and a second grub screw and a second positioning bead are sequentially arranged in the positioning fixing hole from outside to inside. The second grub screw is in threaded fit in the positioning fixing hole, and the two sides of the second positioning bead abut against the side wall of the second grub screw and the side wall of the rotating shaft respectively; a rotating groove is formed in the other end of the rotating body, a clamping body is rotatably installed in the rotating groove, a plurality of pin holes are formed in the clamping body, positioning pins are inserted into the pin holes, plug pin holes are formed in the groove walls of the two sides of the rotating groove, and the two ends of each positioning pin are inserted into the corresponding plug pin holes in a matched mode respectively; quick and accurate erection of multi-angle and composite-angle parts is achieved, the machining period is effectively shortened, and the machining precision is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of EDM fixtures, in particular to an EDM compound angle fixture. Background Art

[0002] With the rapid development of the information age, the speed of electronic product replacement is accelerating. In order to meet market demand, customers are constantly shortening the product development cycle, which requires that every link in the production process needs to improve efficiency and reduce unnecessary time consumption. In the field of EDM, for the processing of multi-angle and compound-angle parts, the traditional setting method usually relies on the sine table for multiple setting and adjustment, which is not only complicated to operate, but also inefficient.

[0003] Among them, in the traditional processing method, for parts with multiple angles, it is necessary to use the sine table to set up multiple times, and each time the part is set up, it is necessary to accurately calibrate the part in three degrees, which greatly increases the difficulty and time cost of processing. For parts with compound angles, it is necessary to use the superposition of sine tables for setting up. This setting method not only requires multiple calibrations, but also because of the superposition of multiple sine tables, the processing stroke is limited, thus affecting the processing accuracy and efficiency. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an EDM compound angle fixture to improve the efficiency of electric spark machining, reduce production costs, and increase the utilization rate of machines and personnel.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an EDM compound angle fixture, comprising a base, a repeatable positioning kit is installed on the base, a rotating shaft is provided on the base, a rotating body is rotatably installed on the rotating shaft, a positioning and fixing hole is opened on the outer wall of the rotating body, a second headless screw and a second positioning bead are sequentially arranged in the positioning and fixing hole from the outside to the inside, the second headless screw is threadedly matched in the positioning and fixing hole, and two sides of the second positioning bead are respectively pressed against the second headless screw and the side wall of the rotating shaft;

[0006] A rotating groove is provided at the other end of the rotating body, and a clamping body is rotatably installed in the rotating groove. A plurality of pin holes are provided on the clamping body, and positioning pins are inserted into the pin holes. Pin holes are provided on the groove walls on both sides of the rotating groove, and both ends of the positioning pin are respectively inserted into the corresponding pin holes.

[0007] Preferably, a plurality of positioning holes are evenly opened on the outer wall of the rotating body along the circumferential direction, and a first headless screw, a positioning spring and a first positioning bead are sequentially arranged in the positioning hole from the outside to the inside, the first headless screw is threadedly engaged in the positioning hole, the two ends of the positioning spring are respectively pressed against the first headless screw and the first positioning bead, an annular guide groove is arranged on the rotating shaft along the circumferential direction, the first positioning bead is buckled in the annular guide groove, and can roll relatively along the annular guide groove.

[0008] Preferably, a rotation scale is provided on one end of the rotating body, and an indicator line corresponding to the rotation scale is provided on the base; and a rotation scale is also provided on the side wall of the clamping body in the circumferential direction around the central axis.

[0009] Preferably, a plurality of the pin holes are evenly spaced apart along the rotation direction of the rotating body.

[0010] Preferably, block grooves are provided on the outer walls on both sides of the rotating body, positioning blocks are embedded in the block grooves, a positioning bolt is inserted into the positioning block on one side, and a semicircular ring groove is provided on the clamping body in the circumferential direction around the central axis, the positioning bolt is inserted in the semicircular ring groove, and its end thread is engaged with the positioning block on the other side.

[0011] Preferably, the positioning blocks on both sides are also provided with positioning side holes, and a third headless screw and a third positioning bead are provided in the positioning side holes. The third headless screw and the third positioning bead are arranged in sequence from the outward direction of the clamping body, and the third headless screw thread is engaged with the positioning side hole, and the two ends of the third positioning bead are respectively pressed against the third headless screw and the outer wall of the clamping body.

[0012] Preferably, a fixed block is provided on one side of the top of the clamping body, and a pressure block is slidably installed on the other side. A T-shaped guide groove is provided on the top of the clamping body. The pressure block is slidably connected in the T-shaped guide groove and can move toward the fixed block under the guidance of the T-shaped guide groove. A second fastening screw is inserted into the pressure block, and the head of the second fastening screw is pressed against the pressure block, and the tail of the second fastening screw is inserted into the T-shaped guide groove and cooperates with the thread of the clamping body.

[0013] The technical effect of the utility model is: to realize the rapid and accurate erection of multi-angle and compound-angle parts, effectively shorten the processing cycle and improve the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the explosion structure of the utility model.

[0016] The main technical features in the figure are marked as follows: 1. base; 2. repeatable positioning kit; 3. rotating shaft; 31. first fastening screw; 4. rotating body; 41. positioning hole; 42. first headless screw; 43. positioning spring; 44. first positioning bead; 45. annular guide groove; 46. positioning fixing hole; 47. second headless screw; 48. second positioning bead; 491. rotation scale; 492. indicator line; 5. clamping body; 51. rotating groove; 52. center axis; 53. pin hole; 54. positioning pin; 55. block groove; 56. positioning block; 57. positioning bolt; 58. semicircular annular groove; 61. positioning side hole; 62. third headless screw; 63. third positioning bead; 64. fixing block; 65. pressure block; 66. T-shaped guide groove; 67. second fastening screw. DETAILED DESCRIPTION

[0017] The present invention will be further described below through specific implementation modes and accompanying drawings.

[0018] As shown in the figure, an EDM compound angle fixture includes a base 1, and a repeating positioning kit 2 is installed on one side of the base 1. The repeating positioning kit 2 is an EROWA repeating positioning kit 2, which is composed of an EROWA positioning sheet, an external hexagonal threaded piece and a clamping rivet. The repeating positioning kit 2 can be positioned and installed on the base 1 by the external hexagonal threaded piece and the clamping rivet.

[0019] Furthermore, a rotating shaft 3 is installed at the other end of the base 1, a rotating body 4 is rotatably installed on the rotating shaft 3, and a first fastening screw 31 is provided on the end of the rotating shaft 3 away from the base 1 for axially limiting the rotating body 4 to be installed on the base 1.

[0020] Furthermore, a plurality of positioning holes 41 are evenly opened on the outer wall of the rotating body 4 along the circumferential direction, and a first headless screw 42, a positioning spring 43 and a first positioning bead 44 are sequentially arranged in the positioning hole 41 from the outside to the inside, the first headless screw 42 is threadedly engaged in the positioning hole 41, and the two ends of the positioning spring 43 are respectively pressed against the first headless screw 42 and the first positioning bead 44, and an annular guide groove 45 is arranged on the rotating shaft 3 along the circumferential direction, the first positioning bead 44 is engaged and buckled in the annular guide groove 45, and can relatively roll along the annular guide groove 45.

[0021] Furthermore, a positioning and fixing hole 46 is opened on the outer wall of the top of the rotating body 4, and a second headless screw 47 and a second positioning bead 48 are arranged in sequence from the outside to the inside of the positioning and fixing hole 46. The second headless screw 47 is threadedly engaged in the positioning and fixing hole 46, and the second positioning bead 48 is pressed against the second headless screw 47 and the side wall of the rotating shaft 3 on both sides.

[0022] Specifically, a rotation scale 491 is provided on one end of the rotating body 4 , and an indication line 492 corresponding to the rotation scale 491 is provided on the base 1 .

[0023] Furthermore, a rotating groove 51 is provided at the other end of the rotating body 4, and a clamping body 5 is rotatably installed in the rotating groove 51 through a central axis 52. A pin hole 53 is provided on the clamping body 5, and three pin holes 53 are arranged at intervals along the rotation direction of the rotating body 4, and the direction of the line connecting the center of each pin hole 53 and the rotation center of the rotating body 4 is perpendicular or parallel to the clamping body 5; every two adjacent pin holes 53 are spaced 90° apart, and a positioning pin 54 is inserted in the pin hole 53. Pin holes 53 are provided on the groove walls on both sides of the rotating groove 51, and both ends of the positioning pin 54 are respectively inserted in the corresponding pin holes 53.

[0024] Furthermore, block grooves 55 are opened on the outer walls of both sides of the rotating body 4, and positioning blocks 56 are embedded in the block grooves 55. A positioning bolt 57 is inserted into the positioning block 56 on one side. A semicircular ring groove 58 is opened on the clamping body 5 in the circumferential direction around the central axis 52. The positioning bolt 57 is inserted in the semicircular ring groove 58, and its end thread is engaged with the positioning block 56 on the other side.

[0025] Furthermore, positioning side holes 61 are provided on the positioning blocks 56 on both sides, and a third headless screw 62 and a third positioning bead 63 are provided in the positioning side holes 61. The third headless screw 62 and the third positioning bead 63 are arranged in sequence from the outside to the clamping body 5. The third headless screw 62 is threadedly engaged in the positioning side hole 61, and the two ends of the third positioning bead 63 are respectively pressed against the third headless screw 62 and the outer wall of the clamping body 5.

[0026] Furthermore, a fixed block 64 is provided on one side of the top of the clamping body 5, and a pressure block 65 is slidably installed on the other side. A T-shaped guide groove 66 is provided on the top of the clamping body 5. The pressure block 65 is slidably connected in the T-shaped guide groove 66 and can move toward the fixed block 64 under the guidance of the T-shaped guide groove 66. A second fastening screw 67 is inserted into the pressure block 65, and the head of the second fastening screw 67 is pressed against the fixed block, and the tail of the second fastening screw 67 is inserted into the T-shaped guide groove 66 and cooperates with the pressure block thread.

[0027] The specific implementation process of the utility model is as follows: after clamping the part on the clamping body 5, loosen the second headless screw 47 and rotate the rotating body 4 to adjust the xz plane angle. After the adjustment is completed, tighten the second headless screw 47 to fix it, then loosen the third headless screw 62, rotate the holding body, adjust the angle value of the yz plane, and at the same time insert the positioning pin 54 into the corresponding pin hole 53, so as to achieve fast and efficient installation of compound angles.

[0028] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. The present invention can be used on similar products. Any changes or modifications made by any technician in the field of the present invention are covered by the patent scope of the present invention.

Claims

1. An EDM composite angle fixture, characterized by: The invention comprises a base (1), a repeatable positioning kit (2) is installed on the base (1), a rotating shaft (3) is provided on the base (1), a rotating body (4) is rotatably installed on the rotating shaft (3), a positioning fixing hole (46) is opened on the outer wall of the rotating body (4), a second headless screw (47) and a second positioning bead (48) are arranged in sequence from the outside to the inside of the positioning fixing hole (46), the second headless screw (47) is threadedly engaged in the positioning fixing hole (46), and the second positioning bead (48) is pressed against the second headless screw (47) and the side wall of the rotating shaft (3) at two sides; The other end of the rotating body (4) is provided with a rotating groove (51), and a clamping body (5) is rotatably installed in the rotating groove (51) through a central axis (52). The clamping body (5) is provided with a plurality of pin holes (53), and positioning pins (54) are inserted into the pin holes (53). Pin insertion holes (53) are provided on the groove walls on both sides of the rotating groove (51), and the two ends of the positioning pin (54) are respectively inserted into the corresponding pin insertion holes (53).

2. The EDM composite angle fixture according to claim 1, characterized in that: A plurality of positioning holes (41) are evenly arranged on the outer wall of the rotating body (4) in the circumferential direction. A first headless screw (42), a positioning spring (43) and a first positioning bead (44) are arranged in sequence from the outside to the inside of the positioning hole (41). The first headless screw (42) is threadedly engaged in the positioning hole (41). Two ends of the positioning spring (43) are respectively pressed against the first headless screw (42) and the first positioning bead (44). An annular guide groove (45) is arranged on the rotating shaft (3) in the circumferential direction. The first positioning bead (44) is engaged and buckled in the annular guide groove (45) and can roll relatively along the annular guide groove (45).

3. The EDM composite angle fixture according to claim 1, characterized in that: A rotation scale (491) is provided on one end of the rotating body (4), and an indication line (492) corresponding to the rotation scale (491) is provided on the base (1).

4. The EDM composite angle fixture according to claim 1, characterized in that: A plurality of pin holes (53) are evenly spaced apart along the rotation direction of the rotating body (4).

5. The EDM composite angle fixture according to claim 1, characterized in that: Block grooves (55) are provided on the outer walls of both sides of the rotating body (4), and positioning blocks (56) are embedded in the block grooves (55). A positioning bolt (57) is inserted into the positioning block (56) on one side. A semicircular ring groove (58) is provided on the clamping body (5) in the circumferential direction around the central axis (52), and the positioning bolt (57) is inserted into the semicircular ring groove (58), and the end thereof is threadedly engaged with the positioning block (56) on the other side.

6. The EDM composite angle fixture according to claim 1, characterized in that: The positioning blocks (56) on both sides are also provided with positioning side holes (61), and a third headless screw (62) and a third positioning bead (63) are arranged in the positioning side holes (61). The third headless screw (62) and the third positioning bead (63) are arranged in sequence from the outside to the clamping body (5). The third headless screw (62) is threadedly engaged in the positioning side holes (61), and the two ends of the third positioning bead (63) are respectively pressed against the outer wall of the third headless screw (62) and the clamping body (5).

7. The EDM composite angle fixture according to claim 1, characterized in that: A fixed block (64) is provided on one side of the top of the clamping body (5), and a pressure block (65) is slidably installed on the other side. A T-shaped guide groove (66) is provided on the top of the clamping body (5). The pressure block (65) is slidably connected in the T-shaped guide groove (66) and can move towards the fixed block (64) under the guidance of the T-shaped guide groove (66). A second fastening screw (67) is inserted into the pressure block (65). The head of the second fastening screw (67) is pressed against the fixed block, and the tail of the second fastening screw (67) is inserted into the T-shaped guide groove (66) and cooperates with the pressure block thread.

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