Turbocharger gear pin polishing clamp

Abstract

The utility model belongs to the technical field of polishing clamps, and particularly relates to a turbocharger gear pin polishing clamp which comprises a fixed seat and two groups of clamping mechanisms which are symmetrically distributed, and further comprises two side vertical plates which are symmetrically fixed on the fixed seat and are provided with mounting holes; the lifting plate is positioned in the mounting hole; the vertical cylinder is fixed at the top end of the side vertical plate; the threaded rod is fixed at the end part of the clamping mechanism, and the threaded rod penetrates through the arc-shaped sliding hole; the butterfly nut is mounted at the extending end of the threaded rod in a threaded screwing manner; according to the gear pin grinding device, after one end of the gear pin is ground, the direction of the gear pin can be adjusted under the condition that the gear pin is not disassembled, the other end of the gear pin can be ground conveniently, machining efficiency is greatly improved, and meanwhile potential safety hazards existing when the gear pin is disassembled are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of grinding jigs, and particularly relates to a grinding jig for a gear pin of a turbocharger. Background Art

[0002] A turbocharger is actually an air compressor that increases the intake air volume by compressing air. It uses the inertia impulse of the exhaust gas discharged from the engine to drive the turbine in the turbine chamber, and the turbine drives the coaxial impeller. The impeller pressurizes the air sent by the air filter pipeline, making it pressurized and entering the cylinder. When the engine speed increases, the exhaust gas discharge speed and the turbine speed increase synchronously, and the impeller compresses more air into the cylinder. The increase in air pressure and density allows more fuel to be burned. By correspondingly increasing the fuel quantity and adjusting the engine speed, the output power of the engine can be increased.

[0003] The gear pin is an important spare part of the turbocharger and is used to cooperate with the key to fix the turbocharger gear. During the processing of the gear pin, its end face needs to be ground, so a jig is required to fix the cylindrical gear pin.

[0004] In the prior art, there are many types of fixing jigs for gear pins, including manual jigs and automatic jigs. The gear pin to be processed is placed inside the jaws, and then the jaws are used to clamp and fix the gear pin. When it is necessary to grind the other end of the gear pin, it is necessary to first release the locking of the jaws, turn the gear pin half a turn and fix it again.

[0005] Although the grinding jigs in the prior art can meet general working requirements, when it is necessary to grind the other end of the gear pin, it is necessary to first remove the gear pin, turn it half a turn and fix it again, which is rather troublesome and greatly reduces the processing efficiency.

[0006] To solve the above problems, a grinding jig for a gear pin of a turbocharger is proposed in this application. Content of the Utility Model

[0007] To solve the above problems existing in the prior art, the utility model provides a grinding jig for a gear pin of a turbocharger, which has the characteristics of convenient use and high processing efficiency.

[0008] To achieve the above object, the utility model provides the following technical solution: A grinding jig for a gear pin of a turbocharger, comprising a fixed seat and two groups of symmetrically distributed clamping mechanisms, and further comprising:

[0009] Side vertical plates, two of the side vertical plates are symmetrically fixed on the fixed seat, and mounting holes are provided on the side vertical plates;

[0010] Lifting plate, the lifting plate is located within the mounting hole, and an arc-shaped sliding hole is provided on the lifting plate, and the clamping mechanism is rotatably connected to the lifting plate by a rotating shaft;

[0011] Vertical cylinder, the vertical cylinder is fixed to the top end of the side vertical plate, and the piston rod of the vertical cylinder is fixedly connected to the lifting plate;

[0012] Threaded rod, the threaded rod is fixed to the end of the clamping mechanism, and the threaded rod passes through the arc-shaped sliding hole;

[0013] Wing nut, the wing nut is installed on the protruding end of the threaded rod by means of screw thread engagement.

[0014] As a preferred technical solution of the present invention, the clamping mechanism includes:

[0015] First connecting plate, the first connecting plate is rotatably connected to the lifting plate by a rotating shaft;

[0016] Second connecting plate, the second connecting plate is fixedly connected to the first connecting plate by a fixed rod;

[0017] Clamping plate, a V-shaped clamping groove is provided on the clamping plate;

[0018] Horizontal cylinder, the horizontal cylinder is fixed on the second connecting plate, and the piston rod of the horizontal cylinder passes through the second connecting plate and is fixedly connected to the clamping plate.

[0019] As a preferred technical solution of the present invention, it further includes:

[0020] Guide rod, four of the guide rods are diagonally fixed on the clamping plate, and the guide rods pass through the second connecting plate.

[0021] As a preferred technical solution of the present invention, four of the fixed rods are diagonally distributed.

[0022] As a preferred technical solution of the present invention, it further includes:

[0023] Guide post, two of the guide posts are symmetrically fixed within the mounting hole, and the guide posts pass through the lifting plate.

[0024] As a preferred technical solution of the present invention, the end face of the lifting plate abuts against the inner wall of the mounting hole.

[0025] As a preferred technical solution of the present invention, it further includes:

[0026] Positioning table, the positioning table is fixed to the middle of the top surface of the fixed seat.

[0027] As a preferred technical solution of the present utility model, the thickness of the positioning table is less than the distance between the clamping plate and the fixed seat.

[0028] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0029] In the present utility model, after one end of the gear pin is polished, the direction of the gear pin can be adjusted without disassembling the gear pin, which is convenient for polishing the other end of the gear pin, greatly improving the processing efficiency and avoiding the potential safety hazards when removing the gear pin.

[0030] Some additional advantages and beneficial effects of this application will be given in part in the following description, some will become obvious from the following description, or will be understood through the practice of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0032] Figure 1 is a schematic structural diagram of the present utility model;

[0033] Figure 2 is an isometric structural diagram of the clamping mechanism in the present utility model;

[0034] Figure 3 is the present utility model Figure 2 is an enlarged structural diagram of part A in the present utility model.

[0035] In the figure: 1, fixed seat; 2, side vertical plate; 21, mounting hole; 22, guiding column; 3, lifting plate; 31, arc-shaped sliding hole; 4, clamping mechanism; 41, first connecting plate; 411, rotating shaft; 412, threaded rod; 42, fixed rod; 43, second connecting plate; 44, clamping plate; 441, V-shaped clamping groove; 442, guiding rod; 45, horizontal cylinder; 5, vertical cylinder; 6, positioning table; 7, wing nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0037] Please refer to Figures 1-3, the present utility model provides the following technical solutions: A grinding fixture for a gear pin of a turbocharger, comprising a fixed seat 1 and two sets of symmetrically distributed clamping mechanisms 4, and further comprising: side vertical plates 2, a lifting plate 3, a vertical cylinder 5, a threaded rod 412, and a wing nut 7.

[0038] Further, as shown by Figure 1 and Figure 3 In this embodiment, two side vertical plates 2 are symmetrically fixed on the fixed seat 1, and there are mounting holes 21 on the side vertical plates 2. The lifting plate 3 is located in the mounting holes 21, and there is an arc-shaped sliding hole 31 on the lifting plate 3. The clamping mechanism 4 is rotatably connected to the lifting plate 3 by a rotating shaft 411. The vertical cylinder 5 is fixed to the top of the side vertical plate 2, and the piston rod of the vertical cylinder 5 is fixedly connected to the lifting plate 3. The threaded rod 412 is fixed to the end of the clamping mechanism 4 and passes through the arc-shaped sliding hole 31. The wing nut 7 is installed on the protruding end of the threaded rod 412 by means of thread screwing. After adopting the above scheme, during use, first fix the fixed seat 1 on the workbench of the grinding equipment by conventional means, then place the gear pin to be ground inside the two sets of clamping mechanisms 4, and grind the top end of the gear pin through the grinding equipment. When it is necessary to grind the bottom end of the gear pin, first start the vertical cylinder 5, pull the lifting plate 3 up by the piston rod of the vertical cylinder 5 to lift the gear pin, then loosen the wing nut 7, and then rotate the clamping mechanism 4 to drive the gear pin to rotate through the clamping mechanism 4, so that the bottom end of the gear pin turns to the upper side. Finally, start the vertical cylinder 5 again, push the lifting plate 3 down by the piston rod of the vertical cylinder 5 to lower the gear pin, and use the grinding equipment to grind the end face of the gear pin again, greatly improving the processing efficiency. And because the gear pin will generate a relatively high temperature due to frictional heat after grinding, the traditional method is prone to cause safety accidents of scalding. The grinding fixture of the present utility model further improves the processing safety and avoids the safety hazards existing when removing the gear pin.

[0039] Optionally, as shown by Figure 1 and Figure 2 In this embodiment, the clamping mechanism 4 includes: a first connecting plate 41, a second connecting plate 43, a clamping plate 44, and a horizontal cylinder 45. The first connecting plate 41 is rotatably connected to the lifting plate 3 by a rotating shaft 411. The second connecting plate 43 is fixedly connected to the first connecting plate 41 by a fixing rod 42. There is a V-shaped clamping groove 441 on the clamping plate 44. The horizontal cylinder 45 is fixed on the second connecting plate 43, and the piston rod of the horizontal cylinder 45 passes through the second connecting plate 43 and is fixedly connected to the clamping plate 44. After adopting the above scheme, during use, start the horizontal cylinder 45, push the clamping plate 44 to move by the piston rod of the horizontal cylinder 45, and then the gear pin can be clamped by the two clamping plates 44 on both sides.

[0040] Preferably, as shown by Figure 1 andFigure 2 As shown in the figure, in this embodiment, it further includes: guide rods 442. Four guide rods 442 are diagonally fixed on the clamping plate 44, and the guide rods 442 penetrate through the second connecting plate 43. After adopting the above solution, the four guide rods 442 provided are used to guide the clamping plate 44, greatly improving the stability of the clamping plate 44.

[0041] Preferably, Figure 1 and Figure 2 As shown in the figure, in this embodiment, there are four fixed rods 42 distributed diagonally, ensuring the stability of the connection between the first connecting plate 41 and the second connecting plate 43.

[0042] Preferably, Figure 1 As shown in the figure, in this embodiment, it further includes: guide columns 22. Two guide columns 22 are symmetrically fixed in the mounting holes 21, and the guide columns 22 penetrate through the lifting plate 3. After adopting the above solution, the two guide columns 22 provided are used to guide the lifting plate 3, greatly improving the stability of the lifting plate 3.

[0043] Preferably, Figure 1 As shown in the figure, in this embodiment, the end face of the lifting plate 3 abuts against the inner wall of the mounting hole 21, further ensuring the stability of the lifting plate 3 and preventing the lifting plate 3 from shaking.

[0044] Preferably, Figure 1 As shown in the figure, in this embodiment, it further includes: a positioning table 6. The positioning table 6 is fixed to the middle of the top surface of the fixed seat 1. After adopting the above solution, the positioning table 6 provided supports the gear pin from the bottom, avoiding the problem of the gear pin sliding during grinding.

[0045] Preferably, Figure 1 As shown in the figure, in this embodiment, the thickness of the positioning table 6 is less than the distance between the clamping plate 44 and the fixed seat 1, avoiding the positioning table 6 from interfering with the horizontal displacement of the clamping plate 44.

[0046] The components not described in detail herein are prior art.

[0047] The working principle and usage process of the present utility model: For the grinding fixture of the present utility model, during use, first fix the fixed seat 1 on the workbench of the grinding equipment by conventional means, then place the gear pin to be ground inside the two sets of clamping mechanisms 4, support the gear pin from the bottom through the provided positioning table 6, then start the horizontal cylinder 45, push the clamping plate 44 to move through the piston rod of the horizontal cylinder 45, and then use the clamping plates 44 on both sides to clamp the gear pin. Finally, grind the top end of the gear pin through the grinding equipment;

[0048] When it is necessary to grind the bottom end of the gear pin, first start the vertical cylinder 5. Pull the lifting plate 3 to rise through the piston rod of the vertical cylinder 5, so that the gear pin rises. Then loosen the wing nut 7, and then rotate the clamping mechanism 4. Drive the gear pin to rotate through the clamping mechanism 4, so that the bottom end of the gear pin turns to the upper side. Finally, start the vertical cylinder 5 again. Push the lifting plate 3 to descend through the piston rod of the vertical cylinder 5, so that the gear pin descends, and use the grinding equipment to grind the end face of the gear pin again, greatly improving the processing efficiency;

[0049] Because the gear pin will generate a relatively high temperature due to frictional heat after grinding, the traditional method is prone to safety accidents such as scalding. The grinding fixture of the present utility model further improves the processing safety and avoids the safety hazards existing when removing the gear pin.

[0050] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A turbocharger gear pin grinding fixture, comprising a fixing seat (1) and two sets of symmetrically distributed clamping mechanisms (4), characterized in that: Also includes: Side upright plates (2), wherein the two side upright plates (2) are symmetrically fixed on the fixing seat (1), and the side upright plates (2) are provided with mounting holes (21); A lifting plate (3), the lifting plate (3) being located in the mounting hole (21), and having an arc-shaped sliding hole (31) on the lifting plate (3), and the clamping mechanism (4) being rotatably connected to the lifting plate (3) by means of a rotating shaft (411); A vertical cylinder (5), wherein the vertical cylinder (5) is fixed to the top end of the side plate (2), and a piston rod of the vertical cylinder (5) is fixedly connected to the lifting plate (3); A threaded rod (412), the threaded rod (412) being fixed to an end of the clamping mechanism (4), and the threaded rod (412) passing through the arc-shaped sliding hole (31); A butterfly nut (7), wherein the butterfly nut (7) is mounted on the protruding end of the threaded rod (412) by means of a threaded engagement.

2. A turbocharger gear pin grinding fixture according to claim 1, characterized in that: The clamping mechanism (4) comprises: A first connecting plate (41), the first connecting plate (41) being rotatably connected to the lifting plate (3) by means of a rotating shaft (411); A second connecting plate (43), the second connecting plate (43) being fixedly connected to the first connecting plate (41) by means of a fixing rod (42); A clamping plate (44), wherein the clamping plate (44) has a V-shaped clamping groove (441); A horizontal cylinder (45), wherein the horizontal cylinder (45) is fixed on the second connecting plate (43), and a piston rod of the horizontal cylinder (45) passes through the second connecting plate (43) and is fixedly connected to the clamping plate (44).

3. A turbocharger gear pin grinding fixture according to claim 2, characterized in that: Also includes: Guide rods (442), four of the guide rods (442) are fixed on the clamping plate (44) in a diagonal manner, and the guide rods (442) penetrate the second connecting plate (43).

4. The turbocharger gear pin grinding fixture according to claim 2, characterized in that: There are four fixing rods (42) distributed diagonally.

5. The turbocharger gear pin grinding fixture according to claim 1, characterized in that: Also includes: Guide columns (22), wherein two guide columns (22) are symmetrically fixed in the mounting hole (21), and the guide columns (22) penetrate the lifting plate (3).

6. The turbocharger gear pin grinding fixture according to claim 1, characterized in that: The end surface of the lifting plate (3) abuts against the inner wall of the mounting hole (21).

7. The turbocharger gear pin grinding fixture according to claim 2, characterized in that: Also includes: A positioning platform (6), wherein the positioning platform (6) is fixed to the middle portion of the top surface of the fixing seat (1).

8. The turbocharger gear pin grinding fixture according to claim 7, characterized in that: The thickness of the positioning platform (6) is smaller than the distance between the clamping plate (44) and the fixing seat (1).

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