Grinding flattening mould of eccentric bushing

Abstract

A tire body is composed of a vertical baffle and a horizontal supporting block, the section of the tire body is in an L shape, a side plate is arranged on the outer side of the tire body horizontal supporting block, the upper portions of the two ends of the tire body horizontal supporting block are movably connected with side positioning blocks respectively, and the middle of the tire body horizontal supporting block is movably connected with a center positioning block in the center. A sliding block is placed on the horizontal supporting block of the tire body and between the center positioning block and the side positioning block, one end of a clamping piece penetrates through the side plate to abut against the outer side of the sliding block, a workpiece to be machined is placed on the horizontal supporting block of the tire body and between the vertical baffle and the sliding block, and the workpiece is limited through a fixing piece. According to the utility model, the flat angle size can be ensured, the processing efficiency is higher, and the personnel cost can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the field of mechanical manufacturing, and particularly to a grinding flat jig for an eccentric sleeve. Background Art

[0002] There is a flat on the cylindrical surface of the existing eccentric sleeve, and there are angular requirements with respect to the eccentric hole (such as Figure 1 ). At present, a turning-milling composite processing method is generally adopted to machine all the dimensions of the workpiece together with the flat, so that the angle of the flat can be guaranteed; however, after the flat is machined, the outer cylindrical surface is incomplete. If the outer circle needs to be ground subsequently, the low-cost centerless grinding method cannot be used, and only external cylindrical grinding can be adopted. Such an operation has low efficiency and cannot guarantee the tolerance of the flat. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a grinding flat jig for an eccentric sleeve, which can guarantee the angular dimension of the flat, has relatively high processing efficiency, and can effectively reduce the labor cost.

[0004] The utility model includes a jig body, side plates, side positioning blocks, a center positioning block, sliders, clamping members and fixing members.

[0005] Among them, the jig body is composed of a vertical baffle and a horizontal support block. The cross-section of the jig body is in an L shape. The side plates are arranged outside the horizontal support block of the jig body. Side positioning blocks are movably connected to the upper parts of both ends of the horizontal support block of the jig body, and a center positioning block at the center is movably connected to the middle of the horizontal support block of the jig body. Sliders are placed between the upper part of the horizontal support block of the jig body, the center positioning block and the side positioning blocks. One end of the clamping member passes through the side plate and abuts against the outside of the slider. A workpiece to be processed is placed between the horizontal support block of the jig body, the vertical baffle and the slider, and the workpiece is restricted by the fixing member.

[0006] Preferably, the fixing member can be a magnetic strip, which is adsorbed on the flat of the cylindrical surface of the workpiece.

[0007] Preferably, the fixing member can be a pressing plate, which presses on the workpiece.

[0008] Compared with the prior art, the utility model has the following advantages: it can guarantee the angular dimension of the flat, has relatively high processing efficiency, and can effectively reduce the labor cost. Brief Description of the Drawings

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for description in the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0010] Figure 1The angular requirement between the cylindrical surface flat of the eccentric sleeve and the eccentric hole of the present utility model;

[0011] Figure 2 The perspective view of Embodiment 1 of the present utility model;

[0012] Figure 3 The top view of Embodiment 1 of the present utility model;

[0013] Figure 4 The usage state diagram of Embodiment 1 of the present utility model;

[0014] Figure 5 The perspective view of Embodiment 2 of the present utility model;

[0015] Figure 6 The top view of Embodiment 2 of the present utility model;

[0016] Figure 7 The usage state diagram of Embodiment 2 of the present utility model;

[0017] Figure 8 The perspective view of the workpiece of the present utility model before grinding;

[0018] Figure 9 The perspective view of the workpiece of the present utility model after grinding;

[0019] Figure 10 The front view of the workpiece of the present utility model;

[0020] Figure 11 The side view of the workpiece of the present utility model;

[0021] In the figure: 1 - matrix, 2 - side plate, 3 - side positioning block, 4 - center positioning block, 5 - slider, 6 - bolt, 7 - machined workpiece, 8 - magnetic strip, 9 - pressing plate. Specific embodiments

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0023] Embodiment 1

[0024] In Figures 2 to 4In the schematic diagram of the present utility model shown, the carcass 1 is composed of a vertical baffle and a horizontal support block. The cross-section of the carcass is L-shaped. The side plate 2 is placed outside the horizontal support block of the carcass. Side positioning blocks 3 are respectively movably connected to the upper parts of both ends of the horizontal support block of the carcass, and a central positioning block 4 at the center is movably connected to the middle of the horizontal support block of the carcass. A slider 5 is placed between the horizontal support block of the carcass, the central positioning block and the side positioning blocks. One end of a bolt 6 passes through the side plate and abuts against the outside of the slider. A workpiece 7 to be processed is placed between the horizontal support block of the carcass, the vertical baffle and the slider. A magnetic strip 8 is adsorbed on the cylindrical flat of the workpiece.

[0025] In Figure 4 , Figure 8 , Figure 9 , Figure 10 and Figure 11 , the using process of the present utility model is as follows. Half of the flat on the workpiece is adsorbed on the long magnetic strip, and the workpieces are placed one by one. The adsorbed workpieces and the strong magnet are put into the tooling together with the strong magnet facing upwards. Do not rotate the workpiece when picking it up. Tighten the bolt on the side plate to make the slider completely press the workpiece and fix the workpiece completely. Remove the magnetic strip and start grinding. Loosen the bolt and take out the workpiece.

[0026] Embodiment 2

[0027] In Figures 5 to 7 the schematic diagram of the present utility model shown, the carcass 1 is composed of a vertical baffle and a horizontal support block. The cross-section of the carcass is L-shaped. The side plate 2 is placed outside the horizontal support block of the carcass. Side positioning blocks 3 are respectively movably connected to the upper parts of both ends of the horizontal support block of the carcass, and a central positioning block 4 at the center is movably connected to the middle of the horizontal support block of the carcass. A slider 5 is placed between the horizontal support block of the carcass, the central positioning block and the side positioning blocks. One end of a bolt 6 passes through the side plate and abuts against the outside of the slider. A workpiece 7 to be processed is placed between the horizontal support block of the carcass, the vertical baffle and the slider. A pressing plate 9 is pressed on the workpiece.

[0028] In Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 , the using process of the present utility model is as follows. The workpieces are placed in the tooling in the same direction (with the half-flat end against the carcass) in sequence, and the half-flat of the workpiece faces upwards. A pressing plate matching the size of the workpiece is pressed on the half-flat of the workpiece, and the pressing block is gently tapped to make the flat fully contact with the pressing block. Slowly tighten the bolt on the side plate, but do not let the slider completely press the workpiece, and gently tap the pressing plate again to make the flat fully horizontally contact with the pressing plate. Tighten the bolt to completely fix the workpiece. Remove the pressing block and start grinding. Loosen the bolt and take out the workpiece.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An eccentric sleeve grinding and flattening jig, mainly comprising a jig body, side plates, side positioning blocks, a center positioning block, sliders, clamping members and fixing members, characterized in that: The carcass is composed of a vertical baffle and a horizontal support block. The cross-section of the carcass is L-shaped. The side plate is placed outside the horizontal support block of the carcass. Side positioning blocks are movably connected to the upper parts of both ends of the horizontal support block of the carcass respectively. A central positioning block of the center is movably connected to the middle of the horizontal support block of the carcass. A slider is placed between the upper part of the horizontal support block of the carcass, the central positioning block and the side positioning blocks. One end of the clamping member passes through the side plate and abuts against the outside of the slider. A workpiece to be processed is placed between the horizontal support block of the carcass, the vertical baffle and the slider. The workpiece is restricted by the fixing member.

2. The grinding and flattening tool for the eccentric sleeve according to claim 1, characterized in that: The fixing member is a magnetic strip, which is adsorbed on the cylindrical flat of the workpiece.

3. The grinding and flattening tool for the eccentric sleeve according to claim 1, characterized in that: The fixing member is a pressing plate, which presses on the workpiece.

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