Oilstone pressing mechanism

Abstract

The utility model relates to the technical field of oilstone processing, in particular to an oilstone pressing mechanism which comprises a clamping jaw, the clamping jaw is used for clamping oilstone blocks, a pressing mechanism is arranged above the clamping jaw, and the pressing mechanism comprises a fixing support, a sliding column, a plurality of stages of circular truncated cone blocks, a pushing arm, a limiting ratchet column and a connecting column. The sliding column is inserted into the fixing support from top to bottom and connected with the circular truncated cone blocks below the sliding column, the circular truncated cone blocks are sequentially stacked up and down to form an integrated structure and fixedly connected with the clamping jaw through connecting columns at the bottoms of the circular truncated cone blocks, and a limiting ratchet column extending out of a left supporting arm of the fixing support is clamped to the edges of the two-stage circular truncated cone blocks. In the design, the oilstone block can automatically abut against the surface of a workpiece, it is ensured that the oilstone block makes full contact with the workpiece, the oilstone block does not need to be manually adjusted, the operation difficulty is reduced, and the machining efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil stone processing technical field especially relates to a kind of oil stone pressing mechanism. BACKGROUND

[0002] The purpose of oil stone pressing is to ensure that oil stone contacts workpiece and fully contacts workpiece surface, since the thrust applied to oil stone clamping mechanism is generally constant, i.e. the force of oil stone contacting workpiece surface cannot be adjusted, and oil stone exists processing wear, therefore, every time, staff needs to re-adjust the contact position of oil stone relative to workpiece, such working mode is not only cumbersome to operate, but also greatly affects processing efficiency. SUMMARY

[0003] The utility model aims at solving the shortcomings in prior art, and provides an oil stone pressing mechanism.

[0004] In order to achieve the above object, the utility model adopts the following technical scheme:

[0005] An oil stone pressing mechanism, comprising a clamping jaw, the clamping jaw is used for clamping an oil stone block, a pressing mechanism is arranged above the clamping jaw, the pressing mechanism comprises a fixed support, a sliding column, a plurality of circular blocks, a pushing arm, a limiting ratchet and a connecting column, the fixed support is erected above the clamping jaw, the sliding column is inserted into the fixed support from top to bottom and connected with the lower circular block, the circular blocks are stacked in an integrated structure from top to bottom and fixedly connected with the clamping jaw through the connecting column at the bottom of the circular blocks, the fixed support is in U-shaped structure, the two arms of the fixed support are designed as a left arm and a right arm respectively, the limiting ratchet protruding from the left arm is clamped at the edge of the two circular blocks, and the pushing arm protruding from the right arm pushes the corresponding circular block downward at the front end.

[0006] In a preferred technical scheme, the fixed support is installed on a lapping machine through the beam arranged on the side surface of the fixed support and erected above the clamping jaw.

[0007] In a preferred technical scheme, a spring is sleeved outside the sliding column, the upper end of the spring is pressed against the top horizontal arm of the fixed support, and the lower end of the spring is pressed against the circular block at the bottom.

[0008] In a preferred technical scheme, a movable support is installed in the right arm through a fixed shaft, a pushing arm is rotatably installed at the front end of the movable support through a connecting shaft, the pushing arm protrudes outward from the right arm, the outer end of the pushing arm is in contact with the edge of the circular block, and a tail block is arranged at the tail end of the movable support.

[0009] In a preferred technical scheme, an eccentric wheel is arranged in the right arm, the edge of the eccentric wheel intermittently touches the tail block in the process of rotation.

[0010] In a preferred technical solution, the inside of the left branch arm is rotationally provided with a limiting ratchet through a mounting shaft, the limiting ratchet extends outwardly from the left branch arm, and the tail end of the limiting ratchet is in contact with the edge of the circular block.

[0011] In a preferred technical solution, the inside of the left branch arm is provided with an L-shaped clamping spring piece, the clamping spring piece is installed above the limiting ratchet and is in elastic contact with the limiting ratchet.

[0012] The beneficial effects of the present application are:

[0013] The pressing mechanism provided by the present application solves the problem that the oil stone cannot guarantee full contact with the workpiece surface after long-time work, which affects the machining operation, and the oil stone block can be automatically abutted against the workpiece surface to ensure full contact between the oil stone block and the workpiece, without manual adjustment of the oil stone block, thereby reducing the operation difficulty and improving the machining efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 The present application provides a main view structural schematic diagram of the pressing mechanism;

[0015] Fig. 2 The present application provides a top view structural schematic diagram of the pressing mechanism;

[0016] Fig. 3 The present application provides a structural schematic diagram of the clamping jaw and the circular block in an assembled state.

[0017] In the figure: 1, fixed support; 2, right branch arm; 3, left branch arm; 4, sliding column; 5, spring; 6, circular block; 7, connecting column; 8, clamping jaw; 9, oil stone block; 10, fixed shaft; 11, movable support; 12, tail block; 13, connecting shaft; 14, pushing arm; 15, eccentric wheel; 16, limiting ratchet; 17, clamping spring piece. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

[0019] In the present embodiment, refer to Figs. 1-3The utility model relates to an oil stone pressing mechanism, including the jaw 8 for holding the oil stone block 9, the upper portion of jaw 8 is provided with the pressing mechanism, and the pressing mechanism includes fixed support 1, sliding column 4, several levels of circular platform block 6, push arm 14, limit ratchet 16 and connecting column 7, and fixed support 1 is erected above jaw 8, and fixed support 1 is installed on the fine grinding machine through the beam of its side surface and is erected above jaw 8, guaranteeing that the position of fixed support 1 is determined.

[0020] Sliding column 4 is inserted into fixed support 1 from top to bottom and is connected with the circular platform block 6 below, and the circular platform block 6 is stacked in an integrated structure and is fixedly connected with jaw 8 through the connecting column 7 at the bottom, and spring 5 is sleeved outside sliding column 4, and the upper end of spring 5 is pressed against the top cross arm of fixed support 1, and the lower end of spring 5 is pressed against the circular platform block 6 at the bottom. The spring 5 has the resilience of stretching, and when the circular platform block 6 of each level is pushed down, the resilience of spring 5 is greater.

[0021] Fixed support 1 is in U-shaped structure, and the two arms of the fixed support 1 are designed as left branch 3 and right branch 2 respectively, the limit ratchet 16 in the left branch 3 is clamped on the edge of two levels of circular platform block 6, and the push arm 14 in the right branch 2 pushes the corresponding circular platform block 6 to move downwards at the front end.

[0022] The right branch 2 and the left branch 3 are described respectively.

[0023] Regarding the right branch 2:

[0024] The inside of right branch 2 is provided with movable support 11 through fixed shaft 10, the front end of movable support 11 is rotatably provided with push arm 14 through connecting shaft 13, push arm 14 extends outwards from the right branch 2, and the outer end of push arm 14 is in contact with the edge of circular platform block 6, and the tail end of movable support 11 is provided with tail block 12. The inside of right branch 2 is provided with eccentric wheel 15, and the edge of eccentric wheel 15 intermittently touches tail block 12 in the rotating process. The outside of right branch 2 is provided with control motor for rotating eccentric wheel 15, and the eccentric wheel 15 is pressed and touched tail block 12 in the rotating process, so that movable support 11 rotates around its fulcrum fixed shaft 10, therefore, push arm 14 at the front end of movable support 11 intermittently presses one level of circular platform block 6 downwards. Finally, the lowermost jaw 8 and the oil stone block 9 in jaw 8 are displaced by one unit downwards.

[0025] Regarding the left branch 3;

[0026] The inside of the left branch arm 3 is rotatably provided with a limiting ratchet 16 through a mounting shaft, the limiting ratchet 16 extends outwardly from the left branch arm 3, and the tail end of the limiting ratchet 16 is in contact with the edge of the circular platform block 6. The inside of the left branch arm 3 is provided with an L-shaped clamping spring 17, which is installed above the limiting ratchet 16 and is in elastic contact with the limiting ratchet 16. The clamping spring 17 has a resetting function, which ensures that the limiting ratchet 16 returns to the original position. When the circular platform block 6 moves downward by one unit, the spring 5 has an increased elastic force due to stretching, and when the circular platform block 6 drops by one level, the limiting ratchet 16 is adaptively pressed against the corresponding edge of the circular platform block 6, thereby forming a limiting effect, ensuring that the position of the circular platform block 6 and the clamping jaw 8 below is relatively fixed. With such a design, the oilstone block 9 can be kept stable during use.

[0027] During use, the oilstone block 9 will be worn, therefore, in order to ensure that the bottom surface of the oilstone block 9 can accurately and sufficiently contact the surface of the workpiece, during the design stage, the thickness of the circular platform block 6 can be reduced, and the number of stacked circular platform blocks 6 can be increased. In this way, as the machining process continues, the oilstone block 9 can automatically drop, ensuring that the oilstone block 9 is always in contact with the workpiece, without the need for frequent manual adjustment of the oilstone block 9, thereby improving work efficiency and ensuring the machining quality of the product.

[0028] The above only describes the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can make equivalent replacements or changes to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An oil stone pressing mechanism comprising a clamp jaw (8) for clamping an oil stone block (9), characterized in that, The upper part of the clamping jaw (8) is provided with a pressing mechanism, which comprises a fixed support (1), a sliding column (4), several levels of circular blocks (6), a pushing arm (14), a limiting ratchet (16) and a connecting column (7). The fixed support (1) is arranged above the clamping jaw (8), the sliding column (4) is inserted into the fixed support (1) from top to bottom and connected with the lower circular block (6), the circular blocks (6) are stacked in an integrated structure from top to bottom and fixedly connected with the clamping jaw (8) through the connecting column (7) at the bottom, the fixed support (1) is in U-shaped structure, the two arms of the fixed support (1) are designed as a left support arm (3) and a right support arm (2), the limiting ratchet (16) protruding from the left support arm (3) is clamped on the edge of the two-level circular block (6), and the pushing arm (14) protruding from the right support arm (2) pushes the corresponding circular block (6) to move downward.

2. An oil stone holding mechanism according to claim 1, wherein The fixed support (1) is installed on the lapping machine through the beam arranged on the side surface and arranged above the clamping jaw (8).

3. An oil stone holding mechanism as claimed in claim 1, wherein The sliding column (4) is externally sleeved with a spring (5), the upper end of the spring (5) is pressed against the top horizontal arm of the fixed support (1), and the lower end of the spring (5) is pressed against the circular block (6) at the bottom.

4. An oil stone holding mechanism according to claim 1, wherein The inside of the right support arm (2) is provided with a movable support (11) through a fixed shaft (10), the front end of the movable support (11) is rotatably provided with a pushing arm (14) through a connecting shaft (13), the pushing arm (14) protrudes outward from the right support arm (2), and the outer end of the pushing arm (14) is in contact with the edge of the circular block (6), and the tail end of the movable support (11) is provided with a tail block (12).

5. An oil stone holding mechanism according to claim 4, wherein The inside of the right support arm (2) is provided with an eccentric wheel (15), the edge of the eccentric wheel (15) intermittently touches the tail block (12) during rotation.

6. An oil stone holding mechanism as claimed in claim 1, wherein The inside of the left support arm (3) is rotatably provided with a limiting ratchet (16) through a mounting shaft, the limiting ratchet (16) protrudes outward from the left support arm (3), and the tail end of the limiting ratchet (16) is in contact with the edge of the circular block (6).

7. An oil stone holding mechanism according to claim 6, wherein The inside of the left support arm (3) is provided with an L-shaped clamping spring piece (17), which is arranged above the limiting ratchet (16) and in elastic contact with the limiting ratchet (16).

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