Jig and process for improving machining precision

Abstract

The invention discloses a jig and process for improving machining precision, and relates to the technical field of jigs, the jig comprises a base and a pipe, a limiting seat is fixedly installed on the base, a disc is rotatably installed on the limiting seat, an extrusion ring is slidably installed on the disc in the axial direction of the disc, a sliding block is slidably installed on the disc in the radial direction of the disc, and the sliding block is provided with a clamping groove; and a sliding plate is fixedly mounted on the sliding block. After punching is finished, an electric push rod drives a servo motor and a drill bit to be away from a pipe, a friction plate on the electric push rod is attached to a friction wheel along with descending of the motor, the friction plate drives the friction wheel to rotate at the moment, a driving disc is driven to rotate along with rotation of the friction wheel, and the driving plate drives a disc to rotate at the moment; at the moment, the pipe on the disc rotates along with the disc so that the angle can be adjusted, next punching of the drill bit can be facilitated, rotation of the pipe can be automatically adjusted according to movement of the drill bit, and independent control is not needed.

Description

Technical Field

[0001] The present invention relates to the technical field of jigs, and in particular to a jig and a process for improving machining accuracy. Background Art

[0002] Jigs are a large category of tools for carpentry, ironwork, fitter, machinery, electronic control and some other handicrafts. They are mainly used as a tool to assist in controlling position or movement. When processing various graphite pipes, metal pipes, etc., it is usually necessary to punch holes on their surfaces. The use of jigs can improve the punching accuracy.

[0003] Some existing jigs usually use a simple three-jaw clamp to clamp the pipe. When punching, the pipe is usually placed in the three-jaw clamp first, and then clamped by the three-jaw clamp. Then the worker punches the hole or punches the hole through a machine. At the same time, the rotation of the pipe requires a motor or other driving mechanism to drive the three-jaw clamp to rotate. After the drilling is completed, the three-jaw clamp needs to be loosened and the pipe needs to be taken out. At this time, the punching equipment also needs to be kept away, and then a new pipe is fed in. In this process, the replacement of the pipe needs to be done manually, and the rotation of the three-jaw clamp needs to be manually or mechanically controlled. At the same time, the punching tool also needs to be independently controlled, which results in more independently controlled processes in the drilling process. Summary of the invention

[0004] The purpose of the present invention is to provide a jig and process for improving machining accuracy, so as to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a jig for improving machining accuracy, comprising a base and a pipe, a limit seat is fixedly installed on the base, a disc is rotatably installed on the limit seat, an extrusion ring is slidably installed on the disc along its axial direction, a slider is slidably installed on the disc along its radial direction, a slide plate is fixedly installed on the slider, and a clamping rod is fixedly installed on one end of the slide plate close to the center of the extrusion ring; an electric push rod is fixedly installed on the base, a servo motor is fixedly installed on the output end of the electric push rod, and a drill bit is fixedly installed on the output end of the servo motor; a friction plate is fixedly installed on the bottom end of the servo motor, a friction wheel is rotatably installed inside the base, an active disk is fixedly installed on one end of the friction wheel away from the servo motor, and the active disk is in contact with the disc;

[0006] When the drill bit is drilling holes on the circumference of the pipe, each time the drill bit is withdrawn, the disc is driven to rotate so that the pipe is displaced to facilitate drilling of the next position.

[0007] Preferably, a slot is provided on the disc, a rod with a T-shaped cross section is slidably mounted on the limit seat, a chamfer is provided at one end of the rod close to the disc, and a spring is fixedly mounted between the short arm end of the rod and the limit seat.

[0008] Preferably, a limit frame is fixedly mounted on the inner wall of the base, and the friction wheel is rotatably mounted in the limit frame.

[0009] Preferably, a sliding frame is vertically slidably installed on the inner wall of the base, a connecting rod is fixedly installed on the bottom end of the sliding frame, a rotating shaft is rotatably installed inside the base, a rotating frame is fixedly installed on the rotating shaft, a push rod is fixedly installed on the rotating frame, a convex plate is fixedly installed on the bottom end of the rotating frame, a connecting frame is fixedly installed on the end of the connecting rod away from the sliding frame, and a round rod is fixedly installed on the connecting frame.

[0010] Preferably, a first bevel is provided on the slider, and a second bevel is provided on one end of the extrusion ring close to the slider.

[0011] Preferably, a slide groove is provided on the disc, and a slider is slidably installed in the slide groove, and a first return spring is fixedly installed between the slider and the inner wall of the slide groove;

[0012] A second return spring is fixedly installed between the extrusion ring and the disc.

[0013] Preferably, a long strip and a rotating wheel are rotatably mounted inside the slide plate, and the long strip passes through the clamping rod, and a baffle is fixedly mounted on one end of the long strip away from the disc;

[0014] A belt is installed between the rotating wheel and the long strip for transmission, and a long plate is fixedly installed on the disc.

[0015] Preferably, the bottom end of the base is tilted, and an extension rod is fixedly mounted on one end of the slide plate away from the clamping rod.

[0016] Preferably, a reducing rod is fixedly mounted on the clamp rod, and the reducing rod is conical in shape, and the large end of the reducing rod is fixedly connected to the clamp rod.

[0017] A processing technology for a jig for improving processing accuracy also includes the following steps:

[0018] S1. Place several pipes on the extension rod;

[0019] S2, start the electric push rod and the servo motor, so that the electric push rod drives the servo motor to move up and down, and the electric push rod drives the drill bit to rotate to perform the drilling operation;

[0020] S3, the drill bit punches holes in the pipe, and after each exit of the drill bit, the disc drives the pipe to rotate adaptively;

[0021] S4. After the punching is completed, the servo motor moves downward a deeper distance to release the clamping rod from clamping the pipe.

[0022] In the above technical scheme, the present invention provides a jig and process for improving processing accuracy, which has the following beneficial effects: when drilling operation is required, the pipe is placed in three clamping rods, at which time the clamping rods will clamp the pipe, and then when drilling, the electric push rod is started, at which time the electric push rod will drive the servo motor and the drill bit to approach the pipe for drilling until the drilling is completed, at which time the servo motor and the drill bit are driven away from the pipe by the electric push rod, and as the motor descends, the friction plate thereon will fit with the friction wheel, at which time the friction plate will drive the friction wheel to rotate, and as the friction wheel rotates, the active disk will rotate, and at this time the active plate will drive the disc to rotate, and at this time the pipe on the disc will follow the rotation to adjust the angle to facilitate the next drilling of the drill bit, and at this time the rotation of the pipe can be automatically adjusted according to the movement of the drill bit without independent control. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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 will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1 A schematic diagram of a three-dimensional structure provided by an embodiment of the present invention;

[0025] Figure 2 The embodiment of the present invention provides Figure 1 Schematic diagram of some structures;

[0026] Figure 3 A schematic diagram of a portion of the structure of a rotating frame provided in an embodiment of the present invention;

[0027] Figure 4 A schematic diagram of a portion of the structure of a disk provided in an embodiment of the present invention;

[0028] Figure 5 The embodiment of the present invention provides Figure 4 Schematic diagram of the rear structure;

[0029] Figure 6 The embodiment of the present invention provides Figure 5 Schematic diagram of some structures;

[0030] Figure 7 The embodiment of the present invention provides Figure 3 A schematic diagram of the structure at A;

[0031] Figure 8The embodiment of the present invention provides Figure 4 Schematic diagram of the structure at B;

[0032] Fig. 9 A schematic diagram of a portion of the structure of a rotating frame provided in an embodiment of the present invention;

[0033] Fig.10 A partial structural schematic diagram of a clamping rod provided in an embodiment of the present invention.

[0034] Description of reference numerals:

[0035] 1. Base; 2. Pipe; 31. Limit seat; 32. Disc; 321. Slot; 33. Extrusion ring; 34. Slider; 35. Slide plate; 36. Clamp rod; 361. Variable diameter rod; 37. Extension rod; 41. Servo motor; 42. Drill; 43. Electric push rod; 44. Friction plate; 45. Limit frame; 46. Friction wheel; 47. Active disk; 48. Insert rod; 51. Sliding frame; 52. Connecting rod; 53. Connecting frame; 54. Rotating shaft; 55. Rotating frame; 56. Push rod; 57. Round rod; 58. Convex plate; 61. Long strip; 62. Baffle; 63. Belt; 64. Rotating wheel; 65. Long board. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0037] See also Figure 1-10 A jig and process for improving machining accuracy, comprising a base 1 and a pipe 2, a limited seat 31 is fixedly installed on the base 1, a disc 32 is rotatably installed on the limited seat 31, an extrusion ring 33 is slidably installed on the disc 32 along its axial direction, a slider 34 is slidably installed on the disc 32 along its radial direction, a slide plate 35 is fixedly installed on the slider 34, and a clamping rod 36 is fixedly installed on the end of the slide plate 35 close to the center of the extrusion ring 33; an electric push rod 43 is fixedly installed on the base 1, a servo motor 41 is fixedly installed on the output end of the electric push rod 43, and a drill bit 42 is fixedly installed on the output end of the servo motor 41; a friction plate 44 is fixedly installed on the bottom end of the servo motor 41, a friction wheel 46 is rotatably installed inside the base 1, and an active disk 47 is fixedly installed on the end of the friction wheel 46 away from the servo motor 41, and the active disk 47 is in contact with the disc 32;

[0038] When the drill bit 42 is drilling holes on the circumference of the pipe 2, each time the drill bit 42 is withdrawn, the disc 32 is driven to rotate so that the pipe 2 is displaced to facilitate drilling at the next position;

[0039] The pipe 2 is placed in the three clamping rods 36, and the clamping rods 36 will clamp the pipe 2. Then, when drilling, the electric push rod 43 is started. The electric push rod 43 will drive the servo motor 41 and the drill bit 42 to approach the pipe 2 for drilling until the drilling is completed. At this time, the servo motor 41 and the drill bit 42 are driven away from the pipe 2 by the electric push rod 43. As the motor descends, the friction plate 44 thereon will fit with the friction wheel 46. At this time, the friction plate 44 will drive the friction wheel 46 to rotate. As the friction wheel 46 rotates, the active disk 47 will rotate. At this time, the active plate will drive the disc 32 to rotate. At this time, the pipe 2 on the disc 32 will rotate accordingly to adjust the angle to facilitate the next drilling of the drill bit 42.

[0040] In another embodiment of the present invention: a slot 321 is provided on the disc 32, a T-shaped cross-section insert rod 48 is slidably mounted on the limit seat 31, a chamfer is provided at one end of the insert rod 48 close to the disc 32, and a spring is fixedly mounted between the short arm end of the insert rod 48 and the limit seat 31;

[0041] When the active disk 47 drives the disk 32 to rotate, Figure 3 At this time, the disc 32 will rotate counterclockwise, and when the disc 32 rotates counterclockwise, the corner of the slot 321 on the disc 32 will contact the chamfer of the insertion rod 48, which means that the insertion rod 48 will move outward. At this time, the rotation of the disc 32 is not restricted, and as the disc 32 continues to rotate until it rotates to a specified angle, the insertion rod 48 will be inserted into the slot 321 under the pull of the spring, and then the electric push rod 43 pushes the servo motor 41 to rise. While the servo motor 41 rises and drives the friction plate 44 to rise, the friction plate 44 will drive the friction wheel 46 and the active disc 47 to rotate. However, since the insertion rod 48 is inserted in the slot 321 at this time, and the end face of the insertion rod 48 abuts against the slot 321, the insertion rod 48 will limit the clockwise rotation of the disc 32, thereby ensuring that the position of the pipe 2 after rotation stops more accurately, thereby improving the punching accuracy.

[0042] In another embodiment of the present invention: a limit frame 45 is fixedly installed on the inner wall of the base 1, and a friction wheel 46 is rotatably installed in the limit frame 45;

[0043] The friction wheel 46 is limited by the limit frame 45 to facilitate its rotation, wherein the friction wheel 46 and the active disk 47 are coaxially arranged, and the size of the friction wheel 46 is smaller than that of the active disk 47, so that when the friction plate 44 drives the friction wheel 46 to rotate, the active disk 47 drives the disc 32 to rotate at a larger angle. At the same time, during the production process, the limit frame 45 is fixedly mounted on the base 1 by screws, and the active disk 47 is also fixedly mounted on the friction wheel 46 by through-hole screws, both of which are detachable connection methods. When the angle of the perforation on the circumference of the pipe 2 needs to be changed, the active disks 47 of different diameters can be replaced on the friction wheel 46, and the height of the limit frame 45 can be adjusted according to the different diameters of the active disk 47 to adapt to different production requirements.

[0044] In another embodiment of the present invention, a sliding frame 51 is vertically slidably mounted on the inner wall of the base 1, a connecting rod 52 is fixedly mounted on the bottom end of the sliding frame 51, a rotating shaft 54 ​​is rotatably mounted inside the base 1, a rotating frame 55 is fixedly mounted on the rotating shaft 54, a push rod 56 is fixedly mounted on the rotating frame 55, a convex plate 58 is fixedly mounted on the bottom end of the rotating frame 55, a connecting frame 53 is fixedly mounted on the end of the connecting rod 52 away from the sliding frame 51, and a round rod 57 is fixedly mounted on the connecting frame 53;

[0045] The round rod 57 is arranged above the convex plate 58. When the punching of the pipe 2 is completed, the electric push rod 43 can drive the servo motor 41 to continue to descend. At this time, the friction plate 44 will continue to descend until the friction plate 44 descends and drives the slide frame 51 to descend. When the slide frame 51 descends, it will drive the connecting rod 52 to descend. At this time, the connecting rod 52 will drive the round rod 57 to move downward through the connecting frame 53. At this time, the round rod 57 will press down the convex plate 58 to make the rotating frame 55 rotate by relying on the rotating shaft 54. As the rotating frame 55 rotates, the push rod 56 on it will push the extrusion ring 33 to move. At this time, the extrusion ring 33 will approach the disc 32 to drive each slider 34 to move, so that each clamping rod 36 is opened.

[0046] In another embodiment of the present invention: a first bevel is provided on the slider 34, and a second bevel is provided on one end of the extrusion ring 33 close to the slider 34;

[0047] When the extrusion ring 33 is pushed by the push rod 56 and moves toward the disk 32 , the second bevel on the extrusion ring 33 will squeeze the first bevel on the slider 34 , and the slider 34 will be squeezed and move in a direction away from the center of the disk 32 .

[0048] In another embodiment of the present invention: a slide groove is provided on the disc 32, and a slider 34 is slidably installed in the slide groove, and a first return spring is fixedly installed between the slider 34 and the inner wall of the slide groove;

[0049] A second return spring is fixedly installed between the extrusion ring 33 and the disc 32;

[0050] The first return spring and the second return spring ensure that when the push rod 56 no longer pushes the extrusion ring 33, the slider 34 and the extrusion ring 33 can be reset. At the same time, the reset process of the extrusion ring 33 is the process of driving the clamping rod 36 to clamp the pipe 2.

[0051] In another embodiment of the present invention: a long strip 61 and a rotating wheel 64 are rotatably mounted inside the slide plate 35, and the long strip 61 passes through the clamping rod 36, and a baffle 62 is fixedly mounted on one end of the long strip 61 away from the disc 32;

[0052] A belt 63 is installed between the rotating wheel 64 and the long strip 61, and a long plate 65 is fixedly installed on the disc 32;

[0053] The rotating wheel 64 and the long plate 65 are fitted together. As the extrusion ring 33 approaches the disc 32, the slider 34 will drive the slide plate 35 to move in the direction away from the center of the disc 32. When the slide plate 35 moves, it will drive the rotating wheel 64 to move. At this time, the rotating wheel 64 will rotate through the long plate 65. At this time, the rotating wheel 64 will drive the long strip 61 to rotate through the belt 63, so that the baffle 62 rotates. At this time, the clamping rod 36 is also away from the pipe 2. The distance of the baffle 62 also facilitates the falling of the pipe 2. At the same time, when the subsequent pipe 2 slides onto the clamping rod 36, the clamping rods 36 are close to each other. As the clamping rod 36 approaches, the baffle 62 will also rotate and reset. At this time, the baffle 62 will prevent the subsequent pipe 2 from sliding out and control the stop position of the subsequent pipe 2 to improve the accuracy of subsequent punching.

[0054] The three clamping bars 36 are arranged in a circular array, and the two clamping bars 36 at the bottom are maintained at the same horizontal plane. When the three clamping bars 36 are away from each other, the distance between the two clamping bars 36 at the bottom will not be greater than the diameter of the tube 2, so that the tube 2 can slide on the two clamping bars 36 at the bottom without falling.

[0055] In another embodiment of the present invention: the bottom end of the base 1 is tilted, and an extension rod 37 is fixedly installed on one end of the slide plate 35 away from the clamp rod 36;

[0056] A pipe may also be provided, the outlet end of the pipe is connected to the extension rod 37, the pipe 2 may be placed in the pipe and the pipe is tilted so that the pipe 2 in the pipe can slide onto the extension rod 37;

[0057] When the base 1 is placed, the clamping rod 36 has a certain inclination angle with the horizontal line, so that the pipe 2 on the extension rod 37 can be moved toward the clamping rod 36, and the pipe 2 on the clamping rod 36 can slide downward.

[0058] In another embodiment of the present invention: a diameter reducing rod 361 is fixedly mounted on the clamp rod 36, and the diameter reducing rod 361 is conical, and the large end of the diameter reducing rod 361 is fixedly connected to the clamp rod 36;

[0059] When the three clamping rods 36 are away from the pipe 2, the pipe 2 will no longer be clamped. At this time, the pipe 2 can slide downward on the clamping rod 36 until the clamping rod 36 moves to the position of the reducing rod 361. At this time, the small end of the reducing rod 361 directly becomes smaller, and the clamping rod 36 will tilt downward and slide down along the reducing rod 361 again until it falls completely, and the pipe 2 on the extension rod 37 will move toward the clamping rod 36. At the same time, as the processed pipe 2 falls, the electric push rod 43 will also push the servo motor 41 to rise so that the extrusion ring 33 is reset. At this time, the clamping rods 36 will also approach each other to slowly clamp the subsequent pipe 2. At the same time, before clamping, the pipe 2 will stop sliding on the clamping rod 36 until the pipe 2 fits with the baffle 62, so that the position of the pipe 2 is fixed after being clamped.

[0060] The extrusion ring 33 is provided with a groove whose size matches that of the slide plate 35 , so that the outer surfaces of the slide plate 35 and the extrusion ring 33 are flush with each other, so that when the disc 32 drives the slide plate 35 to rotate, the push rod 56 will not abut against the slide plate 35 .

[0061] A processing technology for a jig for improving processing accuracy: further comprising the following steps:

[0062] S1, placing a number of pipes 2 on the extension rod 37;

[0063] S2, start the electric push rod 43 and the servo motor 41, so that the electric push rod 43 drives the servo motor 41 to move up and down, and at the same time the electric push rod 43 drives the drill bit 42 to rotate to perform a drilling operation;

[0064] S3, the drill bit 42 performs drilling processing on the pipe 2, and after each withdrawal of the drill bit 42, the disc 32 drives the pipe 2 to rotate adaptively;

[0065] S4, after the punching is completed, the servo motor 41 moves downward a deeper distance to release the clamping rod 36 from clamping the pipe 2.

[0066] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A jig for improving machining accuracy, comprising a base (1) and a pipe (2), characterized in that: A limit seat (31) is fixedly mounted on the base (1), a disc (32) is rotatably mounted on the limit seat (31), an extrusion ring (33) is slidably mounted on the disc (32) along its axial direction, a slider (34) is slidably mounted on the disc (32) along its radial direction, a slide plate (35) is fixedly mounted on the slider (34), and a clamping rod (36) is fixedly mounted on one end of the slide plate (35) close to the center of the extrusion ring (33); An electric push rod (43) is fixedly mounted on the base (1), a servo motor (41) is fixedly mounted on the output end of the electric push rod (43), and a drill bit (42) is fixedly mounted on the output end of the servo motor (41); A friction plate (44) is fixedly mounted on the bottom end of the servo motor (41), a friction wheel (46) is rotatably mounted inside the base (1), an active disk (47) is fixedly mounted on one end of the friction wheel (46) away from the servo motor (41), and the active disk (47) is in contact with the disc (32); When the drill bit (42) is drilling holes on the circumference of the pipe (2), each time the drill bit (42) is retracted, the disc (32) is driven to rotate so that the pipe (2) is displaced to facilitate drilling holes at the next position.

2. A jig for improving machining accuracy according to claim 1, characterized in that: The disc (32) is provided with a slot (321), and a plug rod (48) with a T-shaped cross section is slidably mounted on the limit seat (31). An end of the plug rod (48) close to the disc (32) is provided with a chamfer, and a spring is fixedly mounted between the short arm end of the plug rod (48) and the limit seat (31).

3. A jig for improving machining accuracy according to claim 1, characterized in that: A limit frame (45) is fixedly mounted on the inner wall of the base (1), and the friction wheel (46) is rotatably mounted in the limit frame (45).

4. A jig for improving machining accuracy according to claim 1, characterized in that: A sliding frame (51) is vertically slidably mounted on the inner wall of the base (1), a connecting rod (52) is fixedly mounted on the bottom end of the sliding frame (51), a rotating shaft (54) is rotatably mounted inside the base (1), a rotating frame (55) is fixedly mounted on the rotating shaft (54), a push rod (56) is fixedly mounted on the rotating frame (55), a convex plate (58) is fixedly mounted on the bottom end of the rotating frame (55), a connecting frame (53) is fixedly mounted on the end of the connecting rod (52) away from the sliding frame (51), and a round rod (57) is fixedly mounted on the connecting frame (53).

5. A jig for improving machining accuracy according to claim 1, characterized in that: The slider (34) is provided with a first bevel, and the end of the extrusion ring (33) close to the slider (34) is provided with a second bevel.

6. A jig for improving machining accuracy according to claim 1, characterized in that: The disc (32) is provided with a slide groove, and the slider (34) is slidably installed in the slide groove, and a first return spring is fixedly installed between the slider (34) and the inner wall of the slide groove; A second return spring is fixedly installed between the extrusion ring (33) and the disc (32).

7. A jig for improving machining accuracy according to claim 1, characterized in that: A long strip (61) and a rotating wheel (64) are rotatably mounted inside the slide plate (35), and the long strip (61) passes through the clamping rod (36). A baffle (62) is fixedly mounted on one end of the long strip (61) away from the disc (32); A belt (63) is installed between the rotating wheel (64) and the long strip (61) for transmission, and a long plate (65) is fixedly installed on the disc (32).

8. A jig for improving machining accuracy according to claim 1, characterized in that: The bottom end of the base (1) is arranged tilted, and an extension rod (37) is fixedly mounted on one end of the slide plate (35) away from the clamping rod (36).

9. A jig for improving machining accuracy according to claim 1, characterized in that: A diameter-reducing rod (361) is fixedly mounted on the clamping rod (36), and the diameter-reducing rod (361) is conical in shape, and the large end of the diameter-reducing rod (361) is fixedly connected to the clamping rod (36).

10. The processing technology of a jig for improving processing accuracy according to claim 1, characterized in that: The following steps are also included: S1, placing a plurality of pipes (2) on an extension rod (37); S2, starting the electric push rod (43) and the servo motor (41), so that the electric push rod (43) drives the servo motor (41) to move up and down, and at the same time the electric push rod (43) drives the drill bit (42) to rotate to perform a drilling operation; S3, the drill bit (42) performs a drilling process on the pipe (2), and after each withdrawal of the drill bit (42), the disc (32) drives the pipe (2) to rotate adaptively; S4. After the punching is completed, the servo motor (41) moves downward a deeper distance to release the clamping rod (36) from clamping the pipe (2).

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