Trunnion machining fixing device

Abstract

The utility model discloses a trunnion processing fixing device, which comprises a base fixed on a lathe, and further comprises a pressure plate used for pressing a trunnion, a hinge mechanism and a locking mechanism are arranged on the base, one end of the pressure plate is hinged with the hinge mechanism, the other end of the pressure plate is matched with the locking mechanism, the pressure plate comprises a pressure plate body, and the pressure plate body is arranged on the base. A receding hole is formed in the axial end of the pressure plate body, a first groove is formed in one end of the pressure plate body, a second groove is formed in the other end of the pressure plate body, the first groove is matched with the first cylinder, the second groove is matched with the second cylinder, and the axial end face of the pressure plate body abuts against the axial end face of the trunnion body. According to the utility model, wall surface deformation during trunnion processing can be avoided, and the processing quality of the trunnion is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ear shaft processing, in particular to an ear shaft processing fixing device. Background Art

[0002] like Figure 1 As shown, the ear shaft includes an ear shaft body 1, and a first cylinder 1a and a second cylinder 1b are symmetrically provided on the ear shaft body 1. The ear shaft body 1 is in a solid state before processing. During processing, the ear shaft body 1 needs to be drilled first, and then bored, and finally a through hole 1c is formed. During the processing, the ear shaft body 1 is radially clamped by two sets of clamping jaws, but the radial clamping force provided by the clamping jaws is too large. During the processing, as the through hole 1c is formed, the wall of the ear shaft body 1 will become thinner and thinner, and the clamping jaws will cause the wall of the ear shaft body 1 to deform, thereby causing the ear shaft to be scrapped. Utility Model Content

[0003] In view of the above problems, the utility model provides a trunnion processing and fixing device.

[0004] The technical solutions to the above technical problems are as follows:

[0005] An ear shaft processing and fixing device includes a base, which is fixed on a lathe, and also includes a pressure plate for pressing the ear shaft. The base is provided with a hinge mechanism and a locking mechanism. One end of the pressure plate is hinged to the hinge mechanism, and the other end of the pressure plate cooperates with the locking mechanism. The pressure plate includes a pressure plate body, and the axial end of the pressure plate body is provided with a clearance hole. One end of the pressure plate body is provided with a first groove, and the other end of the pressure plate body is provided with a second groove. The first groove cooperates with the first cylinder, and the second groove cooperates with the second cylinder. The axial end face of the pressure plate body abuts against the axial end face of the ear shaft body.

[0006] Furthermore, a first push rod and a second push rod are provided on the base, the first push rod abuts against the first cylinder, and the second push rod abuts against the second cylinder.

[0007] Furthermore, the articulated mechanism includes an articulated rod and an articulated screw, one end of the articulated rod is fixed on the base, the articulated screw passes through the other end of the articulated rod, and the articulated screw cooperates with one end of the pressure plate.

[0008] Furthermore, the locking mechanism includes a locking seat, a movable rod, a locking screw, and a locking nut. The locking seat is fixed on the base, the movable rod is fixed on the locking seat, one end of the locking screw is connected to the movable rod, the other end of the locking screw is threadedly matched with the locking nut, and the locking nut is matched with the other end of the pressure plate.

[0009] Further, the base includes a base plate, a base hollow sleeve, a positioning platform, a spring, and a center plate. The base plate is connected to the lathe, the base hollow sleeve is fixed on the base plate, the positioning platform is located in the inner hole of the base hollow sleeve, and at least a portion of the positioning platform is exposed outside the base hollow sleeve. An annular boss is provided at one end of the positioning platform, and a blind hole is provided at the other end of the positioning platform. The annular boss abuts against the axial end of the ear shaft body, the center plate is fixedly connected to the base plate, the spring is located in the blind hole, and one end of the spring abuts against the positioning platform, and the other end of the spring abuts against the center plate.

[0010] The beneficial effects of the utility model are as follows: the utility model presses the first cylinder and the second cylinder on the ear shaft body through the pressure plate, so that the ear shaft is pressed on the base. During the processing, the tool can directly drill and bore the ear shaft through the clearance hole on the pressure plate. Compared with the clamping mechanism of the prior art, the utility model has a better pressing effect, and the utility model presses the axial end of the ear shaft body, which can avoid deformation of the wall surface of the ear shaft body during the processing, reduce the scrap rate of the ear shaft, and improve the processing quality of the ear shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a three-dimensional picture of the trunnion after machining;

[0012] Figure 2 A three-dimensional view of the trunnion when the fixture is pressed for the trunnion machining;

[0013] Figure 3 A cross-sectional view of the trunnion when the fixture is pressed for the trunnion machining;

[0014] Figure 4 It is a three-dimensional diagram of the pressure plate, the hinge mechanism and the locking mechanism;

[0015] Figure 5 A three-dimensional diagram of the base.

[0016] Markings in the accompanying drawings: ear shaft body 1, first cylinder 1a, second cylinder 1b, through hole 1c, base 100, pressure plate 101, hinged fitting part 101-1, locking fitting part 101-2, pressure plate body 101a, give-way hole 101b, first groove 101c, second groove 101d, first push rod 102, second push rod 102a, hinged rod 103, hinged screw 104, hinged screw nut 104a, lock seat 105, movable rod 106, locking screw 107, locking nut 108, base plate 100a, base hollow sleeve 100b, positioning platform 100c, annular boss 100c-1, blind hole 100c-2, spring 100d, center plate 100e. DETAILED DESCRIPTION

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] like Figures 2 to 5 As shown, the ear shaft processing and fixing device includes a base 100, which is fixed on a lathe, and also includes a pressure plate 101 for clamping the ear shaft, the base 100 is provided with a hinge mechanism and a locking mechanism, one end of the pressure plate 101 is hinged to the hinge mechanism, and the other end of the pressure plate 101 cooperates with the locking mechanism, the pressure plate 101 includes a pressure plate body 101a, the axial end of the pressure plate body 101a is provided with a give way hole 101b, one end of the pressure plate body 101a is provided with a first groove 101c, and the other end of the pressure plate body 101a is provided with a second groove 101d, the first groove 101c cooperates with the first cylinder 1a, and the second groove 101d cooperates with the second cylinder 1b, and the axial end face of the pressure plate body 101a abuts against the axial end face of the ear shaft body 1.

[0019] Specifically, before processing, the locking mechanism is opened, and the pressure plate 101 is opened under the action of the hinge mechanism, and then the ear shaft in the blank state is placed on the base 100, and then the pressure plate 101 is pressed on the ear shaft in the blank state, and the first cylinder 1a of the ear shaft body 1 is stuck in the first groove 101c of the pressure plate body 101a, and the second cylinder 1b of the ear shaft body 1 is stuck in the second groove 101d of the pressure plate body 101a. At the same time, the axial ends of the ear shaft body 1 are respectively against the base 100 and the pressure plate body 101a. During processing, the tool drills and bores the ear shaft from the give way hole 101b at the axial end of the pressure plate body 101a. The ear shaft body 1 is subjected to the locking force at the axial end, and the axial locking force is a uniform pressure. Therefore, the ear shaft will not be deformed during the drilling and boring process due to the gradual formation of the outer circular wall of the ear shaft body 1 by the through hole 1c, thereby ensuring the quality of the ear shaft body 1 during the processing.

[0020] The base 100 is provided with a first push rod 102 and a second push rod 102a. The first push rod 102 abuts against the first cylinder 1a, and the second push rod 102a abuts against the second cylinder 1b.

[0021] Specifically, the first push rod 102 and the second push rod 102a cooperate with the threaded holes on the base 100 through their own screw threads. The first push rod 102 and the second push rod 102a provide upward pushing force for the first cylinder 1a and the second cylinder 1b of the ear shaft body 1, ensuring that the axial force of the ear shaft body 1 is uniform and that deformation does not occur during the processing.

[0022] The hinge mechanism includes a hinge rod 103 and a hinge screw 104 . One end of the hinge rod 103 is fixed on the base 100 . The hinge screw 104 passes through the other end of the hinge rod 103 . The hinge screw 104 cooperates with one end of the pressure plate 101 .

[0023] Specifically, the articulated rod 103 cooperates with the threaded hole on the base 100 through its own threaded teeth, and an articulated matching part 101-1 is provided at one end of the pressure plate body 101a. The articulated screw 104 passes through the head of the articulated rod 103, and the articulated screw 104 also passes through the articulated matching part 101-1. An articulated screw nut 104a is provided on the articulated screw 104, and the position of the pressure plate body 101a is adjusted by the articulated screw nut 104a.

[0024] The locking mechanism includes a locking seat 105, a movable rod 106, a locking screw 107, and a locking nut 108. The locking seat 105 is fixed on the base 100, the movable rod 106 is fixed on the locking seat 105, one end of the locking screw 107 is connected to the movable rod 106, and the other end of the locking screw 107 is threadedly matched with the locking nut 108, and the locking nut 108 is matched with the other end of the pressure plate 101.

[0025] Specifically, a locking fitting portion 101-2 is provided at the other end of the pressure plate body 101a, and the lock seat 105 is fixed to the base 100 by a bottom screw. The movable rod 106 is passed through the lock seat 105 and fixed by a nut at the end of the movable rod 106. A head is provided on the locking screw 107 (not shown in the accompanying drawings), and the movable rod 106 passes through its head, thereby realizing the connection between the movable rod 106 and the locking screw 107. When locking the pressure plate body 101a, locking is achieved by tightening the locking nut 108 at the end of the locking screw 107.

[0026] The base 100 includes a base plate 100a, a base hollow sleeve 100b, a positioning platform 100c, a spring 100d, and a center plate 100e. The base plate 100a is connected to a lathe, the base hollow sleeve 100b is fixed on the base plate 100a, the positioning platform 100c is located in the inner hole of the base hollow sleeve 100b, and at least a portion of the positioning platform 100c is exposed outside the base hollow sleeve 100b, an annular boss 100c-1 is provided at one end of the positioning platform 100c, and a blind hole 100c-2 is provided at the other end of the positioning platform 100c, the annular boss 100c-1 abuts against the axial end of the ear shaft body 1, the center plate 100e is fixedly connected to the base plate 100a, the spring 100d is located in the blind hole 100c-2, and one end of the spring 100d abuts against the positioning platform 100c, and the other end of the spring 100d abuts against the center plate 100e.

[0027] Specifically, when the blank ear shaft is positioned on the base hollow sleeve 100b and the positioning platform 100c, the blank ear shaft first contacts the annular boss 100c-1 of the positioning platform 100c, and the positioning platform 100c compresses the spring 100d under the action of the clamping force and the gravity of the ear shaft. When the end of the ear shaft contacts the axial end face of the base hollow sleeve 100b, and the first cylinder 1a and the second cylinder 1b of the ear shaft body 1 contact the first push rod 102 and the second push rod 102a This indicates that the ear shaft in the blank state has been pressed into place, and the positioning platform 100c and the annular boss 100c-1 play an auxiliary positioning role. When the ear shaft is removed, the spring 100d releases its elastic force inside the blind hole 100c-2 under the action of the center disk 100e, and the spring 100d lifts the positioning platform 100c, allowing the annular boss 100c-1 on the positioning platform 100c to protrude to the outside of the hollow sleeve 100b of the base, in preparation for the next auxiliary positioning.

[0028] Finally, it should be noted that the above-described implementation mode is only a preferred embodiment of the utility model to illustrate the technical solution of the utility model, and does not limit it, let alone limit the protection scope of the utility model; although the utility model is described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the protection scope of the claims.

Claims

1. A trunnion processing fixture, comprising a base (100), the base (100) being fixed on a lathe, characterized in that: It also includes a pressure plate (101) for pressing the ear shaft. The base (100) is provided with a hinge mechanism and a locking mechanism. One end of the pressure plate (101) is hinged to the hinge mechanism, and the other end of the pressure plate (101) cooperates with the locking mechanism. The pressure plate (101) includes a pressure plate body (101a). The axial end of the pressure plate body (101a) is provided with a clearance hole (101b). One end of the pressure plate body (101a) is provided with a first groove (101c), and the other end of the pressure plate body (101a) is provided with a second groove (101d). The first groove (101c) cooperates with the first cylinder (1a), and the second groove (101d) cooperates with the second cylinder (1b). The axial end face of the pressure plate body (101a) abuts against the axial end face of the ear shaft body (1).

2. The trunnion processing and fixing device according to claim 1, characterized in that: The base (100) is provided with a first push rod (102) and a second push rod (102a), wherein the first push rod (102) abuts against the first cylinder (1a), and the second push rod (102a) abuts against the second cylinder (1b).

3. The trunnion processing and fixing device according to claim 1, characterized in that: The hinge mechanism comprises a hinge rod (103) and a hinge screw (104). One end of the hinge rod (103) is fixed on the base (100). The hinge screw (104) passes through the other end of the hinge rod (103). The hinge screw (104) cooperates with one end of the pressure plate (101).

4. The trunnion processing and fixing device according to claim 3, characterized in that: The locking mechanism comprises a locking seat (105), a movable rod (106), a locking screw (107), and a locking nut (108); the locking seat (105) is fixed on the base (100); the movable rod (106) is fixed on the locking seat (105); one end of the locking screw (107) is connected to the movable rod (106); the other end of the locking screw (107) is threadedly matched with the locking nut (108); and the locking nut (108) is matched with the other end of the pressure plate (101).

5. The trunnion processing and fixing device according to claim 1, characterized in that: The base (100) comprises a base plate (100a), a base hollow sleeve (100b), a positioning platform (100c), a spring (100d), and a center plate (100e); the base plate (100a) is connected to a lathe; the base hollow sleeve (100b) is fixed on the base plate (100a); the positioning platform (100c) is located in an inner hole of the base hollow sleeve (100b); and at least a portion of the positioning platform (100c) is exposed outside the base hollow sleeve (100b); and the positioning platform (100c) is disposed in a central region of the base. 0c) is provided with an annular boss (100c-1) at one end, and a blind hole (100c-2) is provided at the other end of the positioning platform (100c); the annular boss (100c-1) abuts against the axial end of the ear shaft body (1); the center disk (100e) is fixedly connected to the base disk (100a); the spring (100d) is located in the blind hole (100c-2), and one end of the spring (100d) abuts against the positioning platform (100c), and the other end of the spring (100d) abuts against the center disk (100e).

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