Positioning tool for annular pressing block punching

Abstract

The utility model discloses a positioning tool for punching an annular pressing block, which belongs to the technical field of punching equipment, and particularly comprises a base, a fixed clamping mechanism fixedly arranged above the base and a movable clamping mechanism movably arranged above the base, the movable clamping mechanism is arranged in a sliding chute arranged on the base, a cushion block is arranged on the base, and the cushion block is arranged on the base. The top of the cushion block is provided with a containing groove matched with the radian of the annular pressing block. The positioning bolt is arranged at one end of the placing groove; the positioning column is fixedly arranged on the placing groove; the annular pressing block can be placed in an attached mode through the cushion block, the end of the annular pressing block is limited through the positioning bolt, a first hole in the annular pressing block is punched through the punching equipment, punched hole grooves in the annular pressing block are positioned through the positioning column, the punching equipment can conveniently punch other hole grooves in the annular pressing block, and the punching efficiency is improved. And the punching accuracy of the annular pressing block is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of punching equipment, and in particular relates to a positioning tool for punching holes in an annular pressing block. Background Art

[0002] During the construction of urban subways, railways, water diversion projects, etc., shield machines are required to dig tunnels. In order to adapt to the geological conditions of the project site, especially the construction of urban subways, it is necessary to avoid building foundations and existing underground facilities, so the shield machine needs to turn during the excavation process. The shield body of the shield machine usually consists of a front shield, a middle shield, and a tail shield. The shield body turning method is usually achieved by active articulation or passive articulation. The most obvious difference between active articulation and passive articulation is mainly reflected in the different positions of the articulated cylinders on the shield body: In order to prevent mud, water and sand from entering the shield machine during excavation, the sealing of the shield body articulation is particularly important.

[0003] The existing sealing method is usually formed by combining an annular pressure block, an articulated sealing ring, an adjusting bolt and an emergency sealing airbag. During the tunneling process of the shield machine, the annular pressure block is tightly fitted with the articulated sealing ring through the adjusting bolt to achieve the sealing effect. Therefore, the accuracy of the annular pressure block's external dimensions and hole positioning during the processing is required to be high. In the actual processing process, manual marking and measuring are usually adopted for processing and manufacturing, which has slow production efficiency and is prone to error accumulation, thereby resulting in poor accuracy of the processed pressure block, affecting the sealing of the articulated seal. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a positioning tool for punching holes in an annular pressing block, which has the characteristics of being able to accurately position and punch holes in the annular pressing block.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning tool for punching a ring-shaped pressing block, comprising a base, a fixed clamping mechanism fixedly arranged above the base, and a movable clamping mechanism movably arranged above the base, wherein the movable clamping mechanism is arranged inside a slide groove arranged on the base, and a driving mechanism is arranged inside the slide groove for driving the movable clamping mechanism to approach or move away from the fixed clamping mechanism;

[0006] A cushion block, which is arranged on the base and fixedly connected to the fixed clamping mechanism, and a placement groove adapted to the curvature of the annular pressing block is arranged on the top of the cushion block;

[0007] A positioning bolt, wherein the positioning bolt is arranged at one end of the placement slot, a limiting slot is arranged on the placement slot, a fixing column is fixedly arranged in the limiting slot, a bolt hole adapted to the positioning bolt is arranged in the fixing column, and is used to limit the head end of the annular pressing block;

[0008] A positioning column is fixedly arranged on the placement slot, and the positioning column is arranged on one side of the positioning bolt, and is used to limit the hole slot after punching.

[0009] Preferably, the fixing clamping mechanism comprises a first fixing seat, one side of the first fixing seat is fixedly connected to a first clamping plate via a first bolt, and the first clamping plate is fixedly connected to the cushion block via a second bolt.

[0010] Preferably, the movable clamping mechanism includes a second fixed seat and a driving block fixedly arranged at the bottom of the second fixed seat, one side of the second fixed seat is fixedly connected to a second clamping plate by a third bolt, and the driving block is located inside the slide groove and is slidably connected to the slide groove.

[0011] Preferably, the heights of the first clamping plate and the second clamping plate are both higher than the height of the cushion block.

[0012] Preferably, the driving mechanism includes a threaded rod, which is located inside the slide groove and is rotatably connected to the base, the threaded rod passes through a threaded hole provided on the driving block and is threadedly connected to the driving block, and one end of the threaded rod extends out of the base and is fixedly connected to a bolt nut.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model can place the annular pressing block in close proximity through the cushion block, and can limit the end of the annular pressing block through the positioning bolt, so that the punching device can punch the first hole on the annular pressing block, and can position the hole groove after the hole is punched on the annular pressing block through the positioning column, so that the punching device can punch the remaining hole grooves of the annular pressing block, thereby improving the accuracy of the punching of the annular pressing block. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 4 This is a side view of the structure of the utility model;

[0020] In the figure: 1. base; 2. slide groove; 3. pad; 4. placement groove; 5. positioning bolt; 6. fixing column; 7. positioning column; 8. first fixing seat; 9. first clamping plate; 10. second fixing seat; 11. driving block; 12. second clamping plate; 13. threaded rod; 14. bolt cap. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0022] See also Figure 1-4 The present embodiment provides the following technical solution: a positioning tool for punching a ring-shaped pressing block, comprising a base 1, a fixed clamping mechanism fixedly arranged above the base 1, and a movable clamping mechanism movably arranged above the base 1, such as Figure 4 As shown, the fixed clamping mechanism includes a first fixed seat 8, the right side of the first fixed seat 8 is fixedly connected with a first clamping plate 9 by a first bolt, the first clamping plate 9 and the cushion block 3 are fixedly connected by a second bolt, the movable clamping mechanism is arranged inside the slide groove 2 arranged on the base 1, the movable clamping mechanism includes a second fixed seat 10 and a driving block 11 fixedly arranged at the bottom of the second fixed seat 10, the left side of the second fixed seat 10 is fixedly connected with a second clamping plate 12 by a third bolt, the driving block 11 is located inside the slide groove 2 and is slidably connected to the slide groove 2, and annular pressure blocks of different sizes can be clamped and fixed by the first clamping plate 9 and the second clamping plate 12, which increases the stability of the annular pressure blocks when punching holes.

[0023] A driving mechanism is provided in the slide groove 2, which is used to drive the movable clamping mechanism to approach or move away from the fixed clamping mechanism. The driving mechanism includes a threaded rod 13, which is located inside the slide groove 2 and is rotatably connected to the base 1. The threaded rod 13 passes through a threaded hole provided on the driving block 11 and is threadedly connected to the driving block 11. The right end of the threaded rod 13 extends out of the base 1 and is fixedly connected with a bolt nut 14. By rotating the bolt nut 14, the screw rod rotates to drive the driving block 11 and the second fixed seat 10 to move, so that the second clamping plate 12 approaches or moves away from the first clamping plate 9, and the distance between the first clamping plate 9 and the second clamping plate 12 is adjusted to adapt to annular pressure blocks of different sizes.

[0024] The heights of the first clamping plate 9 and the second clamping plate 12 are both higher than the height of the cushion block 3 , which can more effectively clamp and fix the annular pressing block, and further increase the stability of the annular pressing block when being fixed.

[0025] The cushion block 3 is arranged on the base 1 and fixedly connected to the fixed clamping mechanism. The top of the cushion block 3 is provided with a placement groove 4 which is adapted to the curvature of the annular pressing block. Through the cushion block 3 and the placement groove 4, the outer wall of the annular pressing block can be placed on the base 1 in a fit.

[0026] like Figure 2 As shown, a positioning bolt 5 is arranged at one end of the placement groove 4, and a limiting groove is arranged on the placement groove 4. A fixing column 6 is fixedly arranged in the limiting groove, and a bolt hole adapted to the positioning bolt 5 is arranged in the fixing column 6, which is used to limit the head end of the annular pressing block. Through the positioning bolt 5, when the end of the annular pressing block is placed on the placement groove 4, the end of the annular pressing block is contacted with the positioning bolt 5, which can limit the punching position of the annular pressing block, so that the annular pressing block can be clamped in the state, and the punching equipment can punch the head hole of the annular pressing block.

[0027] In some embodiments, the positioning bolt 5 can be adjusted to different heights on the placement slot 4, so that the positioning bolt 5 can adapt to annular pressing blocks of different thicknesses and better limit the end of the annular pressing block.

[0028] like Figure 2 As shown, the positioning column 7 is fixedly arranged on the placement groove 4, and the positioning column 7 is arranged on the left side of the positioning bolt 5, and is used to limit the hole groove after punching. Through the positioning column 7, after the punching equipment completes the punching of the first hole of the annular pressing block, the positioning bolt 5 is removed, and the first hole of the annular pressing block is sleeved on the positioning column 7, and the annular pressing block is limited again, so that the punching equipment punches the annular pressing block again. Similarly, the punching equipment punches the annular pressing block in turn.

[0029] In some embodiments, the positioning post 7 is matched with the hole groove on the annular pressing block, which is conducive to the hole groove on the annular pressing block being sleeved on the positioning post 7 to re-position the annular pressing block.

[0030] The working principle of the utility model is as follows: the end of the annular pressing block to be punched is placed inside the placement groove 4, and one end of the annular pressing block is in close contact with the positioning bolt 5, and then the bolt cap 14 is driven to rotate the threaded rod 13 to drive the driving block 11 and the second fixing seat 10 to move, so that the second pressing plate is close to the first pressing plate to clamp and fix the annular pressing block on the cushion block 3, and then the punching device is started to punch the first hole on the annular pressing block;

[0031] After the punching device has completed punching the first hole of the annular pressing block, the bolt cap 14 is rotated in the opposite direction to make the annular pressing block disengage from the clamping of the second clamping plate 12 and the first clamping plate 9, and then the positioning bolt 5 is removed, and the annular pressing block is moved to make the first hole of the annular pressing block correspond to the positioning column 7, and then the annular pressing block is placed back on the cushion block 3. At this time, the positioning column 7 is located inside the first hole of the annular pressing block, and then the bolt cap 14 is rotated again to make the second clamping plate 12 and the first clamping plate 9 cooperate again to clamp and fix the annular pressing block, so that the punching device continues to punch the annular pressing block;

[0032] By repeating the above operation, the punching device can punch the required holes and slots on the annular pressing block in sequence, and can ensure that the intervals between two adjacent holes and slots are the same.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A positioning tool for punching holes in an annular pressing block, characterized in that: It comprises a base (1), a fixed clamping mechanism fixedly arranged above the base (1), and a movable clamping mechanism movably arranged above the base (1), the movable clamping mechanism being arranged inside a slide groove (2) arranged on the base (1), and a driving mechanism being arranged inside the slide groove (2) for driving the movable clamping mechanism to approach or move away from the fixed clamping mechanism; A cushion block (3), the cushion block (3) being arranged on the base (1) and fixedly connected to the fixed clamping mechanism, and a placement groove (4) matching the curvature of the annular pressing block being arranged on the top of the cushion block (3); A positioning bolt (5), the positioning bolt (5) being arranged at one end of the placement slot (4), the placement slot (4) being provided with a limiting slot, a fixing column (6) being fixedly arranged in the limiting slot, and a bolt hole adapted to the positioning bolt (5) being arranged in the fixing column (6) for limiting the head end of the annular pressing block; A positioning column (7), wherein the positioning column (7) is fixedly arranged on the placement slot (4), and the positioning column (7) is arranged on one side of the positioning bolt (5) and is used to limit the hole slot after punching.

2. A positioning tool for punching holes in an annular pressing block according to claim 1, characterized in that: The fixing clamping mechanism comprises a first fixing seat (8), one side of the first fixing seat (8) is fixedly connected to a first clamping plate (9) via a first bolt, and the first clamping plate (9) is fixedly connected to the cushion block (3) via a second bolt.

3. A positioning tool for punching holes in an annular pressing block according to claim 2, characterized in that: The movable clamping mechanism comprises a second fixing seat (10) and a driving block (11) fixedly arranged at the bottom of the second fixing seat (10); a second clamping plate (12) is fixedly connected to one side of the second fixing seat (10) via a third bolt; and the driving block (11) is located inside the slide groove (2) and is slidably connected to the slide groove (2).

4. A positioning tool for punching holes in an annular pressing block according to claim 3, characterized in that: The heights of the first clamping plate (9) and the second clamping plate (12) are both higher than the height of the cushion block (3).

5. The positioning tool for punching holes in an annular pressing block according to claim 3, characterized in that: The driving mechanism comprises a threaded rod (13), the threaded rod (13) being located inside the slide groove (2) and being rotatably connected to the base (1), the threaded rod (13) passing through a threaded hole provided on the driving block (11) and being threadedly connected to the driving block (11), and one end of the threaded rod (13) extending out of the base (1) and being fixedly connected to a bolt cap (14).

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