Hinge base machining and positioning device

Abstract

The utility model relates to the technical field of road roller accessory machining and positioning devices, in particular to a hinge seat machining and positioning device. A circular groove of a positioning plate is detachably connected with a positioning block, the positioning plate is used for positioning the first end face of the hinge seat body, the positioning block is used for positioning the inner wall of the first end of a stepped through hole, and a positioning pin is used for positioning a first blind hole of the hinge seat body and a second blind hole in the positioning plate; the second end of the hinge seat body is positioned through a gland, a pressing screw sequentially penetrates through the gland, a stepped through hole, a second threaded hole and a first threaded hole, and the upper end of the pressing screw is screwed through a nut to enable the gland to press the second end of the hinge seat body; the hinge seat has the advantages of being low in cost and high in efficiency. The first shaft head and the second shaft head can be conveniently positioned, bored and milled, and the hinge seat can be conveniently clamped and detached during batch machining.

Description

Technical Field

[0001] This utility model relates to the technical field of machining and positioning devices for road roller parts, and in particular to a machining and positioning device for a hinge seat. Background Technology

[0002] An existing articulated seat structure for a road roller includes a first shaft head and a second shaft head. The first shaft head is required to be coaxial with the second shaft head. The structure also includes a stepped through hole, the axis of which is perpendicular to and intersects the axis of the first shaft head. When machining the above-mentioned articulated seat for a road roller, how to facilitate the positioning and milling of the first and second shaft heads by clamping them once on a rotary worktable, and how to facilitate the clamping and disassembly of the articulated seat during batch processing, has become an urgent technical problem to be solved. Utility Model Content

[0003] The technical problem to be solved by this utility model is: how to facilitate the positioning boring and milling of the first and second shaft heads by clamping once on a rotary worktable, and to facilitate the clamping and disassembly of the hinge seat during batch processing.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A hinge seat processing and positioning device, based on a hinge seat body, the hinge seat body includes a seat body and a first shaft head and a second shaft head symmetrically connected to both sides of the seat body, the axes of the first shaft head and the second shaft head coincide, the seat body is provided with a stepped through hole, the diameter of the first end of the stepped through hole is larger than the diameter of the second end, the first shaft head is perpendicular to and intersects the axis of the stepped through hole, and the seat body is provided with a first blind hole on the end face of the first end of the stepped through hole.

[0006] The positioning device includes:

[0007] The base includes a base plate, a vertical plate, and a positioning plate. The vertical plate is connected to the upper part of the base plate, and the positioning plate is connected to the upper part of the vertical plate. The positioning plate is provided with a circular groove, and the central part of the circular groove is provided with a first threaded hole. The upper part of the positioning plate is provided with a second blind hole that matches the position of the first blind hole at a position offset from the circular groove.

[0008] A positioning pin, wherein the first end of the positioning pin is transitionally fitted with a first blind hole and the other end is transitionally fitted with a second blind hole;

[0009] The positioning block is in the shape of a rotating body. The lower end of the positioning block is limited to a circular groove, and the upper end is limited to the first port of a stepped through hole. The central shaft of the positioning block is provided with a second threaded hole with the same diameter as the first threaded hole.

[0010] Tighten the screw and nut;

[0011] A pressure cap, wherein the center of the pressure cap is provided with a limiting through hole that is clearance-fitted with the clamping screw;

[0012] In the assembled state, the positioning block is connected to the circular groove of the positioning plate, one end of the positioning pin is connected to the second blind hole, the first end of the stepped through hole of the hinge seat body is limited and matched with the positioning block, the first blind hole is matched with the positioning pin, the pressure cap is pressed against the second end of the stepped through hole of the seat body, the clamping screw passes through the limiting through hole and is connected to the second threaded hole and the first threaded hole in sequence, and the nut is threadedly connected to the upper end of the clamping screw.

[0013] Furthermore, in the above-mentioned hinged seat processing and positioning device structure, the base plate is rectangular in shape, and the four corners of the base plate are respectively provided with connecting holes for connecting to the rotary worktable.

[0014] Furthermore, in the above-mentioned hinge seat processing and positioning device structure, a tapered chamfer is provided at the first end port of the stepped through hole, and a tapered guide surface matching the tapered chamfer is provided on the upper part of the positioning block.

[0015] Furthermore, in the above-mentioned hinge seat processing and positioning device structure, the positioning plate has multiple third threaded holes arranged in a circumferential array in the circular groove, and the positioning block has fourth threaded holes that correspond one-to-one with the third threaded holes. The positioning block is connected to the circular groove by bolts sequentially connecting the fourth threaded holes and the third threaded holes.

[0016] Furthermore, in the aforementioned hinge seat machining and positioning device structure, the two ends of the clamping screw are threaded sections, and the middle part is a smooth rod.

[0017] The beneficial effects of this utility model are as follows: This utility model, through the design of a positioning device with a specific structure, uses a positioning plate with a circular groove to detachably connect a positioning block. The positioning plate positions the first end face of the hinge seat body, the positioning block positions the inner wall of the first end of the stepped through hole, and the positioning pin positions the first blind hole of the hinge seat body and the second blind hole on the positioning plate, preventing relative rotation between the positioning plate and the hinge seat body. The second end of the hinge seat body is positioned by a pressure cap. A clamping screw passes through the pressure cap, the stepped through hole, the second threaded hole, and the first threaded hole in sequence. By tightening the upper end of the clamping screw with a nut, the pressure cap presses against the second end of the hinge seat body, ensuring stable positioning of the hinge seat body. This facilitates the machining of the first and second shaft ends on both sides on a boring machine. In mass production, it is only necessary to loosen the nut and remove the pressure cap to easily replace the next hinge seat body to be machined. Then, the pressure cap is installed and the nut is tightened. This has the advantages of low cost and high efficiency. Attached Figure Description

[0018] Figure 1 This is a structural cross-sectional view of the hinge seat body involved in a specific embodiment of the present utility model;

[0019] Figure 2This is a structural schematic diagram of the hinge seat body from a first-view perspective in a specific embodiment of the present utility model.

[0020] Figure 3 This is a structural schematic diagram of the hinge seat body from a second perspective in a specific embodiment of the present utility model.

[0021] Figure 4 This is a cross-sectional view of the structure of a hinge seat processing and positioning device in the assembled state according to a specific embodiment of this utility model;

[0022] Figure 5 This is a top view of a hinge seat processing and positioning device in the assembled state according to a specific embodiment of this utility model;

[0023] Figure 6 for Figure 5 AA-direction cross-section diagram;

[0024] Figure 7 This is a front view of the base structure involved in a specific embodiment of this utility model;

[0025] Figure 8 This is a top view of the base structure involved in a specific embodiment of the present utility model;

[0026] Figure 9 This is a top view of the positioning block involved in a specific embodiment of the present utility model;

[0027] Figure 10 This is a cross-sectional view of the positioning block involved in a specific embodiment of this utility model;

[0028] Figure 11 This is a schematic diagram of the clamping screw involved in a specific embodiment of the present utility model;

[0029] Label Explanation:

[0030] 1. Hinge seat body; 11. Seat body; 111. Stepped through hole; 112. First blind hole; 12. First shaft end; 13. Second shaft end;

[0031] 2. Positioning device; 21. Base plate; 211. Connecting hole; 22. Vertical plate; 23. Positioning plate; 231. Circular groove; 232. Second blind hole; 233. First threaded hole; 234. Third threaded hole; 24. Positioning pin; 25. Positioning block; 251. Second threaded hole; 252. Fourth threaded hole; 26. Clamping screw; 27. Nut; 28. Pressure cap. Detailed Implementation

[0032] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0033] Please refer to Figures 1 to 11 A hinge seat processing and positioning device 2 is based on a hinge seat body 1. The hinge seat body 1 includes a seat body 11 and a first shaft head 12 and a second shaft head 13 symmetrically connected to both sides of the seat body 11. The axes of the first shaft head 12 and the second shaft head 13 coincide. The seat body 11 is provided with a stepped through hole 111. The diameter of the first end of the stepped through hole 111 is larger than the diameter of the second end. The first shaft head 12 is perpendicular to and intersects the axis of the stepped through hole 111. The seat body 11 is provided with a first blind hole 112 on the end face of the first end of the stepped through hole 111.

[0034] Positioning device 2 includes:

[0035] The base includes a base plate 21, a vertical plate 22 and a positioning plate 23. The vertical plate 22 is connected to the upper part of the base plate 21, and the positioning plate 23 is connected to the upper part of the vertical plate 22. The positioning plate 23 is provided with a circular groove 231. The central part of the circular groove 231 is provided with a first threaded hole 233. The upper part of the positioning plate 23 is provided with a second blind hole 232 that matches the position of the first blind hole 112 at a position offset from the circular groove 231.

[0036] Positioning pin 24, the first end of which is transitionally fitted with the first blind hole 112, and the other end of which is transitionally fitted with the second blind hole 232;

[0037] The positioning block 25 is a rotating body. The lower end of the positioning block 25 is limited to the circular groove 231, and the upper end is limited to the first port of the stepped through hole 111. The central axis of the positioning block 25 is provided with a second threaded hole 251 with the same diameter as the first threaded hole 233.

[0038] Clamping screw 26 and nut 27;

[0039] The pressure cap 28 has a limiting through hole in the middle that is clearance-fitted with the clamping screw 26;

[0040] In the assembled state, the positioning block 25 is connected to the circular groove 231 of the positioning plate 23, one end of the positioning pin 24 is connected to the second blind hole 232, the first end of the stepped through hole 111 of the hinge seat body 1 is limited and fitted to the positioning block 25, the first blind hole 112 is fitted to the positioning pin 24, the pressure cap 28 is pressed against the second end of the stepped through hole 111 of the seat body 11, the clamping screw 26 passes through the limiting through hole and is threadedly connected to the second threaded hole 251 and the first threaded hole 233 in sequence, and the nut 27 is threadedly connected to the upper end of the clamping screw 26.

[0041] In the above embodiments, the positioning block 25 is detachably connected to the circular groove 231 of the positioning plate 23. The positioning plate 23 positions the first end face of the hinge body 1, the positioning block 25 positions the first end inner wall of the stepped through hole 111, and the positioning pin 24 positions the first blind hole 112 of the hinge body 1 and the second blind hole 232 on the positioning plate 23, preventing relative rotation between the positioning plate 23 and the hinge body 1. The second end of the hinge body 1 is positioned by the pressure cap 28, and the clamping screw 26 passes through the pressure cap 28 in sequence. The stepped through hole 111, the second threaded hole 251, and the first threaded hole 233 are connected by tightening the upper end of the clamping screw 26 with the nut 27, which causes the pressure cover 28 to press against the second end of the hinge seat body 1, thus providing a stable position for the hinge seat body 1. This facilitates the machining of the first shaft head 12 and the second shaft head 13 on both sides by the boring machine. In mass production, it is only necessary to loosen the nut 27, remove the pressure cover 28, and then easily replace the next hinge seat body 1 that needs to be machined. Then, the pressure cover 28 can be installed and the nut 27 can be tightened. This method has the advantages of low cost and high efficiency.

[0042] In a preferred embodiment, the base plate 21 is rectangular in shape, and connection holes 211 for connecting a rotary worktable are provided at the four corners of the base plate 21.

[0043] The four connecting holes 211 facilitate the bolt fixing of the base plate 21 to the center position of the rotary worktable, and facilitate the machining of the first spindle head 12 and the second spindle head 13 on both sides by the boring machine.

[0044] In a preferred embodiment, the first end port of the stepped through hole 111 is provided with a tapered chamfer, and the upper part of the positioning block 25 is provided with a tapered guide surface that matches the tapered chamfer.

[0045] In a preferred embodiment, the circular groove 231 of the positioning plate 23 is provided with a plurality of third threaded holes 234 arranged in a circumferential array, and the positioning block 25 is provided with fourth threaded holes 252 corresponding to the third threaded holes 234. The fourth threaded holes 252 and the third threaded holes 234 are connected in sequence by bolts so that the positioning block 25 is connected to the circular groove 231.

[0046] In the above structure, it is convenient to replace the positioning block 25 of different specifications according to the chamfer shape of the first end port of different models of hinge base body 1, so as to adapt to the clamping and positioning of different models of hinge base body 1.

[0047] As a preferred embodiment, the two ends of the clamping screw 26 are threaded sections and the middle is a smooth rod. This structure further facilitates the disassembly and clamping of the hinge seat body 1 on the positioning device 2 during batch processing.

[0048] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A hinge seat processing and positioning device, based on a hinge seat body, the hinge seat body including a seat body and a first shaft head and a second shaft head symmetrically connected to both sides of the seat body, the axes of the first shaft head and the second shaft head coincide, the seat body is provided with a stepped through hole, the diameter of the first end of the stepped through hole is larger than the diameter of the second end, the first shaft head is perpendicular to and intersects the axis of the stepped through hole, and the seat body is provided with a first blind hole on the end face of the first end of the stepped through hole. characterized in that The positioning device includes: The base includes a base plate, a vertical plate, and a positioning plate. The vertical plate is connected to the upper part of the base plate, and the positioning plate is connected to the upper part of the vertical plate. The positioning plate is provided with a circular groove, and the central part of the circular groove is provided with a first threaded hole. The upper part of the positioning plate is provided with a second blind hole that matches the position of the first blind hole at a position offset from the circular groove. A positioning pin, wherein the first end of the positioning pin is transitionally fitted with a first blind hole and the other end is transitionally fitted with a second blind hole; The positioning block is in the shape of a rotating body. The lower end of the positioning block is limited to a circular groove, and the upper end is limited to the first port of a stepped through hole. The central shaft of the positioning block is provided with a second threaded hole with the same diameter as the first threaded hole. Tighten the screw and nut; A pressure cap, wherein the center of the pressure cap is provided with a limiting through hole that is clearance-fitted with the clamping screw; In the assembled state, the positioning block is connected to the circular groove of the positioning plate, one end of the positioning pin is connected to the second blind hole, the first end of the stepped through hole of the hinge seat body is limited and matched with the positioning block, the first blind hole is matched with the positioning pin, the pressure cap is pressed against the second end of the stepped through hole of the seat body, the clamping screw passes through the limiting through hole and is connected to the second threaded hole and the first threaded hole in sequence, and the nut is threadedly connected to the upper end of the clamping screw.

2. The articulating seating position apparatus of claim 1, wherein, The base plate is rectangular in shape, and each of its four corners has a connection hole for connecting to a rotary worktable.

3. The articulating seating position apparatus of claim 1, wherein, The first end of the stepped through hole is provided with a tapered chamfer, and the upper part of the positioning block is provided with a tapered guide surface that matches the tapered chamfer.

4. The articulating seating position apparatus of claim 1, wherein, The positioning plate has multiple third threaded holes arranged in a circular array within its circular groove. The positioning block has fourth threaded holes that correspond one-to-one with the third threaded holes. The positioning block is connected to the circular groove by bolts that sequentially connect the fourth threaded holes and the third threaded holes.

5. The articulating seating position apparatus of claim 1, wherein, The two ends of the clamping screw are threaded sections, and the middle part is a smooth rod.

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