Drilling tool for closing catcher

Abstract

The utility model provides a drilling tool for a closing catcher, and belongs to the technical field of drilling auxiliary devices. The drilling tool for the closing catcher comprises a bottom plate, a first supporting block for supporting an operation shaft is arranged on the bottom plate, a supporting structure for supporting a clamping jaw is further arranged on the bottom plate, the supporting structure comprises a first supporting plane in supporting contact with the side plane of a clamping jaw sleeving part, and a rotation stopping block is further arranged on the bottom plate. The rotation stopping block is provided with a rotation stopping contact face in contact fit with the inclined plane of the groove bottom of the operation shaft, a set included angle is formed between the rotation stopping contact face and the first supporting plane, and a pressing rod is detachably connected to the bottom plate through a pressing bolt. According to the utility model, the operation shaft and the clamping jaw are respectively supported and stopped from rotating, and the angle between the stopping surface / side plane of the clamping jaw and the inclined plane of the groove bottom of the operation shaft is ensured not to change through the set included angle between the rotation stopping contact surface and the first supporting plane; and therefore, the problems of part scrapping, low yield and time and cost waste are avoided.

Description

Technical Field

[0001] The utility model relates to a drilling tool for a closing catcher, belonging to the technical field of drilling auxiliary devices. Background Art

[0002] The closing catcher in the spring operating mechanism is a key component for the control mechanism to perform opening and closing actions. Figure 1 , Figure 2 and Figure 3 The structure diagram of the existing closing catcher is shown, which includes an operating shaft 1 and a claw 2 installed on the operating shaft 1. Specifically, the claw 2 includes a sleeve portion 2-1 and a stop portion 2-2. The stop portion 2-2 is used to stop and cooperate with other parts in the spring operating mechanism, so a parallel stop surface 2-2-1 is provided on the stop portion 2-2. The sleeve portion 2-1 is provided with a through hole, and the claw 2 is sleeved on the end of the operating shaft 1 through the through hole. Therefore, the end of the operating shaft 1 is a sleeve section 1-1, and the claw 2 is tightly fitted with the sleeve section 1-1. In addition, the outer peripheral surface of the sleeve portion 2-1 includes two parallel side planes 2-1-1, and the side plane 2-1-1 is parallel to the stop surface 2-2-1. A groove structure is provided on the operating shaft 1, and the groove bottom surface of the groove structure is a groove bottom inclined plane 1-2 parallel to the central axis of the operating shaft, and the groove bottom inclined plane 1-2 is used to cooperate with other structures in the spring operating mechanism.

[0003] For the closing catcher, after the operating shaft 1 and the claw 2 are assembled, it is necessary to drill holes in the sleeve matching parts of the two, that is, it is necessary to process a through hole 3 that penetrates the sleeve part 2-1 and the sleeve section 1-1. After the drilling is completed, a pin is installed to achieve a non-rotating connection between the two, so that the torque on the operating shaft 1 can be transmitted to the claw 2. In order to ensure the effectiveness of the closing catcher, it is necessary to ensure that the set angle between the stop surface 2-2-1 / side plane 2-1-1 and the inclined plane 1-2 of the bottom of the groove is maintained. Therefore, before drilling, there are strict requirements on the assembly effect of the operating shaft 1 and the claw 2. The circumferential sleeve angle of the claw 2 relative to the operating shaft 1 must be controlled before drilling. Although the claw 2 and the operating shaft 1 are tightly fitted, there is still freedom of rotation between the two. However, there is currently a lack of suitable drilling tooling. The claw 2 is easily affected by the impact force during the drilling process and rotates relative to the operating shaft 1, so that the set angle between the stop surface 2-2-1 / side plane 2-1-1 and the inclined plane 1-2 of the bottom of the groove cannot be maintained, which leads to the scrapping of the processed parts, low yield rate, and waste of time and cost. Utility Model Content

[0004] The purpose of the utility model is to provide a drilling tool for a closing catcher to solve the problem in the prior art that when drilling is performed after the operating shaft and the claw are assembled, the claw is easily rotated relative to the operating shaft, resulting in a change in the angle between the stop surface / side plane of the claw and the inclined plane of the bottom of the groove of the operating shaft, thereby causing parts to be scrapped, a low yield, and a waste of time and cost.

[0005] In order to achieve the above-mentioned purpose, the drill tooling for the closing catcher in the utility model adopts the following technical scheme:

[0006] A drilling tool for a closing catcher includes a base plate, a first support block for supporting an operating shaft is arranged on the base plate, a support structure for supporting a claw is also arranged on the base plate, the support structure includes a first support plane for supporting and contacting with the side plane of a sleeve portion of the claw so that the locking portion of the claw cantilevers horizontally, a stop block is also arranged on the base plate, the stop block has a stop contact surface for contacting and cooperating with the inclined plane of the bottom of a groove on the operating shaft, a set angle is formed between the stop contact surface and the first support plane, and a pressure rod for clamping the operating shaft is detachably connected to the base plate through a clamping bolt.

[0007] The beneficial effect of the above technical solution is that the utility model provides a pioneering drilling tool for a closing catcher, which includes a base plate, and a first support block is arranged on the base plate to facilitate supporting the operating shaft; a support structure for supporting the claw is also arranged on the base plate, and the support structure includes a first supporting plane for supporting and contacting with the side plane of the sleeve portion of the claw so that the clamping portion of the claw cantilevers horizontally, thereby ensuring the posture of the claw, and the plane supporting the plane method can also prevent the claw from rotating; a stop block is also arranged on the base plate, and the stop block has a function for contacting and cooperating with the inclined plane of the bottom of the groove on the operating shaft The anti-rotation contact surface can prevent the operating shaft from rotating by surface-to-surface contact, and then the relative positions of the operating shaft and the claw can be guaranteed by the set angle between the anti-rotation contact surface and the first supporting plane, that is, it is guaranteed that the angle between the stop surface / side plane of the claw and the inclined plane of the groove bottom of the operating shaft will not change; finally, the operating shaft is tightened by the pressure rod on the bottom plate, which can ensure reliable stability during drilling, and the pressure rod is detachably connected by the tightening bolt, so the pressure rod can be installed after the operating shaft is put in place, and the pressure rod should be removed first after the processing is completed, so as to facilitate the installation and disassembly of the operating shaft.

[0008] In summary, the utility model supports and stops the operating shaft and the claw respectively, and ensures that the angle between the stop surface / side plane of the claw and the inclined plane of the bottom of the groove of the operating shaft does not change by setting the angle between the anti-rotation contact surface and the first supporting plane, thereby avoiding the problems of scrapped parts, low yield, and waste of time and cost.

[0009] Furthermore, the first support block is used to support the portion of the operating shaft located beside the groove structure, and a second support block is also provided on the bottom plate to support the end of the sleeve section of the operating shaft.

[0010] Furthermore, a step surface is provided on a side of the second support block facing the first support block, and the step surface constitutes the first support plane.

[0011] Furthermore, a slide groove is provided on one of the base plate and the anti-rotation block, and a protrusion embedded in the slide groove and cooperating with the slide groove guide is provided on the other one. The anti-rotation block is used to be fixed to the base plate by fixing bolts after sliding into place.

[0012] Furthermore, the bolt through hole on the anti-rotation block for the fixing bolt to pass through is a long hole consistent with the extension direction of the sliding groove.

[0013] Furthermore, the support structure further comprises a support column, wherein the support column has a second support plane for supporting and contacting with the stop surface of the stop portion.

[0014] Furthermore, the support column is provided with an external thread, and the support column is directly fixed to the base plate through the external thread.

[0015] Furthermore, two positioning columns are provided on the bottom plate, a positioning rod is detachably fixed between the two positioning columns, the positioning rod is provided with corresponding holes corresponding to the upper and lower parts of the clamping claw and the operating shaft to be drilled, and a drilling bushing is provided in the corresponding hole.

[0016] Furthermore, threaded holes for installing connecting rods to expand and connect with another bottom plate of a drilling tool are provided on the side of the bottom plate.

[0017] Furthermore, at least two operating shaft installation positions are arranged on the bottom plate, each operating shaft installation position is provided with the first support block, the support structure and the anti-rotation block, and the pressure rod is used to simultaneously press each operating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of a closing catcher in the prior art;

[0019] Figure 2 It is a top view of a closing catcher in the prior art;

[0020] Figure 3 for Figure 2 AA section view in the figure;

[0021] Figure 4 A three-dimensional diagram of a drill tool for a closing catcher in the utility model;

[0022] Figure 5It is a partial structural diagram of the drilling tooling for the closing catcher in the utility model (the positioning rod and the pressure rod are not shown, and only one closing catcher is shown);

[0023] Figure 6 It is a partial structural diagram of the drilling tooling for the closing catcher in the utility model (the positioning rod, the pressure rod and the closing catcher are not shown);

[0024] Figure 7 It is a three-dimensional diagram of the stop rotating block of the drill tooling for the closing catcher in the utility model;

[0025] Figure 8 It is a three-dimensional diagram of the drilling tooling for the closing catcher in the utility model (two sets of tooling are extended and connected).

[0026] In the figure: 1. operating shaft; 1-1. sleeve section; 1-2. inclined plane of groove bottom; 2. claw; 2-1. sleeve part; 2-1-1. side plane; 2-2. stop part; 2-2-1. stop surface; 3. through hole; 4. bottom plate; 4-1. slide groove; 4-2. chip removal hole; 4-3. threaded hole; 5. first support block; 5-1. first V-shaped groove; 6. second support block; 6-1. step surface; 6-2. second V-shaped groove; 7. anti-rotation block; 7-1. anti-rotation contact surface; 7-2. protrusion; 7-3. long hole; 8. positioning column; 9. nut; 10. positioning rod; 11. drilling bushing; 12. clamping bolt; 13. pressure rod; 14. support column; 14-1. second support plane. DETAILED DESCRIPTION

[0027] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0028] The drilling tool for the closing catcher of the utility model supports and stops the operating shaft and the claw respectively by setting a base plate, a first support block, a second support block, a support column and a stop block, and ensures that the angle between the stop surface / side plane of the claw and the inclined plane of the bottom of the groove of the operating shaft does not change by setting the angle between the stop contact surface and the first support plane, thereby ensuring the drilling accuracy and the qualified rate.

[0029] Embodiment of the drill tooling for the closing catcher in the utility model:

[0030] like Figure 4 , Figure 5 and Figure 6 As shown, the drilling tool for the closing catcher includes a bottom plate 4, on which a first support block 5 for supporting the operating shaft 1 is arranged, and a first V-shaped groove 5-1 is arranged on the first support block 5 to ensure the stability of the support, and the support position is the part of the operating shaft 1 located beside the groove structure. The first support block 5 can be fixed to the bottom plate 4 by screws to facilitate installation and removal.

[0031] The bottom plate 4 is also provided with a supporting structure for supporting the claw 2. Figure 3 As shown, the support structure includes a first support plane for supporting and contacting with the side plane 2-1-1 of the sleeve portion 2-1 of the claw 2 so that the stop portion 2-2 of the claw 2 cantilevers horizontally. Figure 2 As shown, the bottom plate 4 is also provided with a second support block 6 for supporting the end of the sleeve section 1-1 of the operating shaft 1. The second support block 6 is provided with a second V-shaped groove 6-2 to ensure the stability of the support. The installation method of the second support block 6 is the same as that of the first support block 5. At the same time, a step surface 6-1 is provided on the second support block 6 on the side facing the first support block 5. The step surface 6-1 constitutes the above-mentioned first support plane, that is, the second support block 6 supports two parts at the same time, supporting the end of the operating shaft 1 through the second V-shaped groove 6-2, and supporting the sleeve section 2-1 of the claw 2 through the step surface 6-1. There is a surface support between the step surface 6-1 and the side plane 2-1-1 of the sleeve section 2-1. This support method can prevent the claw 2 from rotating, thereby ensuring the overhanging posture of the stop section 2-2.

[0032] Furthermore, in order to ensure the support stability of the claw 2, as Figure 5 and Figure 6 As shown, the support structure further includes a support column 14, which has a second support plane 14-1 for supporting and contacting with the stop surface 2-2-1 of the stop portion 2-2, and the second support plane 14-1 is also the top surface of the support column 14, which prevents the overhanging stop portion 2-2 from causing the claw 2 to rotate. In addition, the support column 14 is provided with an external thread, and the support column 14 is directly fixed to the bottom plate 4 through the external thread, which is convenient for installation and disassembly.

[0033] like Figure 4~Figure 7 As shown, a stop block 7 is also provided on the base plate 4, and the stop block 7 has a stop contact surface 7-1 for contacting and cooperating with the groove bottom inclined plane 1-2 on the operating shaft 1, so that the operating shaft 1 can be prevented from rotating by surface-to-surface contact, and a set angle is provided between the stop contact surface 7-1 and the above-mentioned first supporting plane (i.e., the step surface 6-1), and the set angle is consistent with the angle that should be maintained between the stop surface 2-2-1 / side plane 2-1-1 and the groove bottom inclined plane 1-2, so that the relative position of the operating shaft 1 and the claw 2 can be ensured, and the angle between the stop surface 2-2-1 / side plane 2-1-1 of the claw 2 and the groove bottom inclined plane 1-2 will not change, thereby ensuring the drilling accuracy and qualified rate, and avoiding the problems of scrapped parts, low yield, and waste of time and cost.

[0034] In order to facilitate the installation of the operating shaft 1 and the cooperation between the stop block 7 and the operating shaft 1, in this embodiment, a slide groove 4-1 is provided on the bottom plate 4, and a protrusion 7-2 is provided on the stop block 7, which is embedded in the slide groove 4-1 and cooperates with the guide of the slide groove 4-1, so that the stop block 7 can slide along the slide groove 4-1, so the operating shaft 1 can be placed first, and then the stop block 7 is slid to make the stop contact surface 7-1 contact with the groove bottom inclined plane 1-2. The stop block 7 is used to be fixed on the bottom plate 4 by a fixing bolt (not shown in the figure) after sliding into place, so a bolt through hole for the fixing bolt to pass through is provided on the stop block 7, and a screw hole cooperating with the fixing bolt is provided on the bottom plate 4, and the above-mentioned bolt through hole is a long hole 7-3 consistent with the extension direction of the slide groove 4-1, so that the position of the stop block 7 can be fine-tuned, which facilitates the contact and fit of the stop contact surface 7-1 with the groove bottom inclined plane 1-2.

[0035] like Figure 4 As shown, a pressure rod 13 for pressing the operating shaft 1 is detachably connected to the bottom plate 4 through a clamping bolt 12. The pressure rod 13 presses the middle part of the operating shaft 1 to ensure the stability of the operating shaft 1 during the drilling process. The pressure rod 13 is detachably connected through the clamping bolt 12, and the pressure rod 13 can be installed after the operating shaft 1 is placed in place. At the same time, the pressure rod 13 is first disassembled after the processing is completed, so as to facilitate the installation and disassembly of the operating shaft 1. In addition, at least two operating shaft installation positions are provided on the bottom plate 4, and three are provided in this embodiment. Each operating shaft installation position is provided with the above-mentioned first support block 5, second support block 6, support column 14 and stop block 7, which can simultaneously support and position three closing catchers to improve the drilling efficiency. The above-mentioned pressure rod 13 presses each operating shaft 1 at the same time, and the structure is relatively simple. Three operating shafts 1 are pressed at one time, and the operating efficiency is high. In addition, there are four clamping bolts 12 in total, and one operating shaft 1 is located between two adjacent clamping bolts 12 to ensure the clamping effect.

[0036] In addition, if Figure 4 As shown, two positioning columns 8 are also provided on the bottom plate 4, and a positioning rod 10 is detachably fixed between the two positioning columns 8. The upper and lower ends of the positioning column 8 are respectively provided with threaded sections, and the threaded section at the lower end is fixedly connected to the bottom plate 4. The threaded section at the upper end passes through the positioning rod 10 and is connected with a nut 9 to fix the positioning rod 10. The positioning rod 10 is provided with corresponding holes corresponding to the upper and lower parts of the clamping claw 2 and the operating shaft 1 to be drilled, and a drilling bushing 11 is provided in the corresponding hole to facilitate the guidance of the drill bit and ensure the accuracy of the drilling.

[0037] In addition, if Figure 4 and Figure 8As shown, the left and right sides of the base plate 4 are respectively provided with threaded holes 4-3 for installing connecting rods (not shown in the figure) for expansion connection with the base plate 4 of another drilling tooling. The structures of the two sets of tooling are exactly the same. After the two sets of tooling are expanded and connected, six closing catchers can be supported and positioned at the same time, further improving the drilling efficiency.

[0038] In addition, if Figure 6 As shown, a chip removal hole 4-2 is also provided on the base plate 4 near the second support block 6. The chip removal hole 4-2 is a through hole that passes through the base plate 4 from top to bottom. The chip removal hole 4-2 is located directly below the parts of the jaws 2 and the operating shaft 1 to be drilled, and the aperture of the chip removal hole 4-2 is larger than the aperture of the through hole to be drilled on the jaws 2 and the operating shaft 1, which facilitates chip removal and further facilitates drilling processing.

[0039] When the drill tooling for the closing catcher of the utility model is used, Figure 5 As shown, first, the first support block 5, the second support block 6, and the support column 14 have been fixed on the bottom plate 4 in advance, the pressure rod 13 and the positioning rod 10 are removed, and the pre-assembled operating shaft 1 and the claw 2 are placed on the drilling tooling, so that the first support block 5 supports the middle area of ​​the operating shaft 1, the second support block 6 supports the end of the sleeve section 1-1 of the operating shaft 1, and the step surface 6-1 on the second support block 6 supports the side plane 2-1-1 of the sleeve portion 2-1 of the claw 2. At this time, the support column 14 supports the stop portion 2-2 of the claw 2. And at this time, because it is pre-assembled, the angle between the bottom groove inclined plane 1-2 of the operating shaft 1 and the side plane 2-1-1 of the claw 2 does not meet the requirements. At this time, the anti-rotation block 7 is slid, and the operating shaft 1 is rotated counterclockwise at the same time. The claw 2 remains motionless due to being supported, and the bottom groove inclined plane 1-2 on the operating shaft 1 rotates continuously and contacts and fits with the anti-rotation contact surface 7-1 on the sliding anti-rotation block 7. At this time, the anti-rotation block 7 is fixed to the bottom plate 4 with a fixing bolt, which can ensure that the angle between the bottom groove inclined plane 1-2 and the side plane 2-1-1 meets the requirements. Finally, the pressure rod 13 and the positioning rod 10 are fixed to perform the drilling operation.

[0040] In other implementations of the drilling tool for the closing catcher: threaded holes may not be provided on the side of the base plate, and each drilling tool is used alone without being extended and connected with other tools.

[0041] In other embodiments of the drilling tool for the closing catcher: there may be two, four or more operating shaft mounting positions on the bottom plate. Of course, in other embodiments, only one operating shaft mounting position may be provided, in which case only one closing catcher is supported and positioned.

[0042] In other implementations of the drilling tool for the closing catcher: the positioning column may not be provided on the bottom plate, and the positioning rod is no longer provided. At this time, the drill bit of the drilling machine can be adjusted to ensure the accuracy of the drilling.

[0043] In other embodiments of the drilling tool for the closing catcher: the support column can also be fixed by welding, and there is no need to set an external thread. In other embodiments, the support column can also be fixed to the base plate by screws, and the screws pass through the base plate from the bottom and are threadedly connected to the support column.

[0044] In other embodiments of the drilling tool for the closing catcher: the supporting structure may not include a supporting column. In this case, only the first supporting plane is used to support the claw. Since it is a surface support, it can also ensure that the claw does not rotate.

[0045] In other embodiments of the drilling tool for the closing catcher: the bolt through hole on the stop block can also be a large circular hole with a hole diameter larger than the diameter of the fixing bolt rod, so that the fixed position of the stop block can be fine-tuned. Of course, in other embodiments, the bolt through hole is a circular hole that matches the fixing bolt rod. At this time, the position of the stop block is no longer fine-tuned. After the stop block slides into place, it can be directly fixed with the fixing bolt. At this time, it is necessary to ensure the fixed position accuracy of the stop block through preliminary design to ensure that the stop contact surface can contact and cooperate with the inclined plane of the bottom of the groove on the operating shaft.

[0046] In other embodiments of the drill tooling for the closing catcher: a slide groove can be provided on the anti-rotation block, and a protrusion embedded in the slide groove and matched with the slide groove guide can be provided on the bottom plate. The guiding effect at this time is the same as that of the above-mentioned embodiment. Of course, in other embodiments, the anti-rotation block can also be fixed to the bottom plate in advance and no longer slide with the bottom plate, that is, the slide groove and the protrusion are no longer provided. At this time, when installing the operating shaft, it is necessary to make the inclined plane of the bottom of the groove on the operating shaft be lowered along the anti-rotation contact surface on the anti-rotation block. The fixed position accuracy of the anti-rotation block is ensured by the preliminary design, and it can also be ensured that the anti-rotation contact surface is in contact with the inclined plane of the bottom of the groove on the operating shaft, so as to achieve the anti-rotation effect on the operating shaft.

[0047] In other embodiments of the drilling tool for the closing catcher: the first support plane is not formed by the step surface on the second support block, but a separate support block is provided, and the top surface of the separate support block constitutes the first support plane. At this time, the second support block only supports the operating shaft.

[0048] In other embodiments of the drilling tooling for the closing catcher: the second support block may not be provided, one end of the operating shaft is supported by the first support block, and the claw installed at the other end is supported by the first support plane, thereby achieving support at both ends and ensuring the stability of the support.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the description and drawings of the present invention shall be included in the protection scope of the present invention.

Claims

1. A drilling tool for a closing catcher, characterized in that: It includes a base plate, on which is arranged a first support block for supporting the operating shaft, and a support structure for supporting the claw is also arranged on the base plate, the support structure includes a first support plane for supporting and contacting with the side plane of the sleeve portion of the claw so that the locking portion of the claw cantilevers horizontally, and a stop block is also arranged on the base plate, the stop block has a stop contact surface for contacting and cooperating with the inclined plane of the bottom of the groove on the operating shaft, and a set angle is formed between the stop contact surface and the first support plane, and a pressure rod for clamping the operating shaft is detachably connected to the base plate through a clamping bolt.

2. The drilling tool for closing catcher according to claim 1, characterized in that: The first support block is used to support the part of the operating shaft located beside the groove structure, and the bottom plate is also provided with a second support block for supporting the end of the sleeve section of the operating shaft.

3. The drilling tool for closing catcher according to claim 2, characterized in that: A step surface is arranged on one side of the second support block facing the first support block, and the step surface constitutes the first support plane.

4. The drilling tool for closing catcher according to any one of claims 1 to 3, characterized in that: One of the base plate and the anti-rotation block is provided with a slide groove, and the other is provided with a protrusion embedded in the slide groove and matched with the slide groove guide. The anti-rotation block is used to be fixed to the base plate by fixing bolts after sliding into place.

5. The drilling tool for closing catcher according to claim 4, characterized in that: The bolt through hole on the anti-rotation block for the fixing bolt to pass through is a long hole consistent with the extending direction of the slide groove.

6. The drilling tool for closing catcher according to any one of claims 1 to 3, characterized in that: The supporting structure further comprises a supporting column, wherein the supporting column has a second supporting plane for supporting contact with the stopping surface of the locking portion.

7. The drilling tool for closing catcher according to claim 6, characterized in that: The support column is provided with an external thread, and the support column is directly fixed on the base plate through the external thread.

8. The drilling tool for closing catcher according to any one of claims 1 to 3, characterized in that: Two positioning columns are also arranged on the bottom plate, and a positioning rod is detachably fixed between the two positioning columns. The positioning rod is provided with corresponding holes corresponding to the upper and lower parts of the clamping claws and the operating shaft to be drilled, and a drilling bushing is arranged in the corresponding hole.

9. The drilling tool for closing catcher according to any one of claims 1 to 3, characterized in that: The side of the bottom plate is provided with threaded holes for installing connecting rods to carry out expansion connection with the bottom plate of another drilling tool.

10. The drilling tool for closing catcher according to any one of claims 1 to 3, characterized in that: At least two operating shaft installation positions are arranged on the bottom plate, each operating shaft installation position is provided with the first support block, the support structure and the anti-rotation block, and the pressure rod is used to simultaneously press each operating shaft.

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