CN215847775U - Reference surface detection clamp for tooth claw of mining tricone bit - Google Patents

Reference surface detection clamp for tooth claw of mining tricone bit Download PDF

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Publication number
CN215847775U
CN215847775U CN202121973821.5U CN202121973821U CN215847775U CN 215847775 U CN215847775 U CN 215847775U CN 202121973821 U CN202121973821 U CN 202121973821U CN 215847775 U CN215847775 U CN 215847775U
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CN
China
Prior art keywords
positioning block
plane
reference surface
ejector rod
tooth claw
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202121973821.5U
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Chinese (zh)
Inventor
李世德
纪文胜
马启涛
姜伟
张霞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Angang Group Mining Co Ltd
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Angang Group Mining Co Ltd
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Filing date
Publication date
Application filed by Angang Group Mining Co Ltd filed Critical Angang Group Mining Co Ltd
Priority to CN202121973821.5U priority Critical patent/CN215847775U/en
Application granted granted Critical
Publication of CN215847775U publication Critical patent/CN215847775U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a clamp for detecting a reference surface of a tooth claw of a mining tricone bit, which is characterized by comprising a frame body, a clamping device and a pressing mechanism, wherein the frame body is of a frame structure with an inclined surface on the right side, and a working platform is arranged at the upper part of the frame body; the clamping device comprises a positioning block, the bottom of the positioning block is a plane, the upper part of the positioning block is a V-shaped notch, the plane of the bottom of the positioning block is fixedly connected with the inclined plane on the right side of the frame structure through a bolt, and a positioning pin is arranged on the inclined plane on the right side of the V-shaped notch of the positioning block; the pressing mechanism consists of a supporting frame and a pressing ejector rod, and a stop block is arranged at the end part of the upper part of the working platform, which is close to the side of the clamping device. The advantages are that: the defect that the data cannot be read out by detecting the reference surface of the tooth claw in the prior art is overcome, after the data is accurately measured, the processing and manufacturing errors of the head of the tooth claw are reduced, the precision is improved, the product meets the design requirements, and the service life of the mining tricone bit is prolonged.

Description

Reference surface detection clamp for tooth claw of mining tricone bit
Technical Field
The utility model belongs to the technical field of mining machinery roller bit, and particularly relates to a claw datum plane detection clamp of a mining roller bit.
Background
The mining tricone bit, the product design uses the tooth claw reference surface as the design reference, uses the reference surface as the processing reference surface when processing the tooth claw head. The existing method for determining the reference plane for processing the gripper head is to draw lines on two sides of the gripper head, draw intersections on two sides of the gripper head respectively through calculation data, and see whether two sides of the processing surface of the head fall on the drawn intersections when the gripper head is debugged and processed. If the two sides of the plane are not coincided with the cross points of the drawn lines on the two sides, the processing of the head part of the tooth claw is left and right or front and back are not right or deviated, and a machine tool clamp or a processing program of the head part of the tooth claw needs to be adjusted to ensure that the two sides of the plane of the point C of the tooth claw are coincided with the cross points of the drawn lines on the two sides.
The method for determining the reference surface of the tooth claw has obvious defects, firstly, line drawing is carried out in a tooth claw blank state, and the error is large; secondly, whether the reference surface of the processing claw coincides with the line drawing cross points on the two sides of the head of the tooth claw or not can be seen only by eyes, accurate data cannot be read, and errors exist.
If the machining of the head of the tooth claw is not correct, the three cones easily collide with the drilling frame when the mining tricone bit is assembled, and the mining tricone bit is scrapped.
The newly designed gripper reference surface detection fixture can accurately read out measurement data through the measurement of the dial indicator on the fixture, reduce the processing and manufacturing errors of the gripper head and meet the design requirements of mining tricone bit products.
Disclosure of Invention
The utility model aims to provide a gripper machining reference surface detection clamp capable of reading specific data aiming at the defect that the specific data cannot be read during gripper machining reference surface detection, so that the gripper machining precision can meet the product design requirement, and the service life of a roller bit is prolonged.
In order to solve the problems, the utility model adopts the following technical scheme:
the utility model relates to a reference surface detection clamp for a tooth claw of a mining tricone bit, which is characterized by comprising a frame body, a clamping device and a pressing mechanism,
the frame body is of a frame structure with an inclined surface on the right side, and a working platform is arranged at the upper part of the frame body;
the clamping device comprises a positioning block, the bottom of the positioning block is a plane, the upper part of the positioning block is a V-shaped notch, the plane of the bottom of the positioning block is fixedly connected with the inclined plane on the right side of the frame structure through a bolt, and a positioning pin is arranged on the inclined plane on the right side of the V-shaped notch of the positioning block;
the pressing mechanism comprises a supporting frame and a pressing ejector rod, the supporting frame comprises two stand columns and a cross brace fixedly connected with the upper portions of the two stand columns, a threaded hole is formed in the middle of the cross brace, the pressing ejector rod comprises an ejector rod with external threads and a handle arranged on the upper portion of the ejector rod, the ejector rod penetrates through the threaded hole to be in threaded connection with the cross brace of the supporting frame, the two stand columns are fixedly connected with the two sides of a positioning block through bolts, and a stop block is arranged at the end portion, close to the clamping device, of the upper portion of the working platform.
Preferably, the V-shaped notch is 120 °.
The utility model has the advantages that:
the application of the detection clamp solves the defect that the reference surface of the prior detection tooth claw cannot read data, reduces the processing and manufacturing errors of the tooth claw head after the data is accurately measured, improves the precision, enables the product to meet the design requirements, and prolongs the service life of the mining tricone bit.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of fig. 1.
FIG. 3 is a schematic diagram of a tricone bit jaw configuration.
Detailed Description
The utility model is further illustrated by the following figures and examples.
As shown in fig. 1 and 2, the clamp for detecting the reference surface of the tooth claw of the mining tricone bit is characterized by comprising a frame body 1, a clamping device and a pressing mechanism,
the frame body 1 is of a frame structure with an inclined surface 2 at the right side, and a working platform 3 is arranged at the upper part of the frame body 1; the clamping device comprises a positioning block 4 with a flat bottom and a V-shaped notch at the upper part, the V-shaped notch is 120 degrees, the flat bottom is fixedly connected with an inclined plane 2 at the right side of the frame structure through a bolt, and a positioning pin 5 is arranged on the inclined plane at the right side of the V-shaped notch 4 of the positioning block;
the pressing mechanism comprises a supporting frame and a pressing ejector rod, the supporting frame comprises two stand columns 6 and a cross brace 7 fixedly connected with the upper portions of the two stand columns 6, a threaded hole is formed in the middle of the cross brace 7, the pressing ejector rod comprises an ejector rod 8 with external threads and a handle 9 arranged on the upper portion of the ejector rod 8, the ejector rod 8 penetrates through the threaded hole to be in threaded connection with the cross brace 7 of the supporting frame, the two stand columns 6 are fixedly connected with the two sides of a positioning block 4 through bolts, a stop block 10 is arranged on the upper portion of the working platform 3 and close to the end portion of the clamping device side, and when detection is conducted, the stop block 10 serves as a reference, and the distance from the stop block 10 to a claw reference surface is measured through a depth gauge.
The V-shaped notch of the positioning block is used for positioning the tooth claw; when the tooth claw is positioned in the V-shaped notch, two reference surfaces of the tooth claw are attached to two inclined surfaces of the V-shaped notch; meanwhile, the upper pressing mechanism acts on the skirt part of the claw; by means of the design, the V-shaped notch inclined plane of the positioning block is matched with the pressing mechanism ejector rod, so that the displacement of the tooth claw along the X axis can be limited, and the rotation of the tooth claw around the X axis and the rotation of the tooth claw around the Y axis are limited.
When the device works, as shown in figure 1, the claw 11 shown in figure 3 is placed in the V-shaped notch, and the rotary handle 9 is rotated to clamp and fix the claw after positioning through the 120-degree positioning surface on the inner side of the V-shaped notch and the positioning pin 5.
When whether the left and right sides of the reference surface of the claw deviate or not is detected, the dial indicator is placed on the platform 1, the stop block 10 is used as a reference, the dial indicator head lightly touches the reference surface of the claw, and the dial indicator returns to zero. And moving the dial indicator seat to enable the indicator head to respectively touch the left position and the right position of the reference surface of the tooth claw, and adjusting a machine tool clamp or a numerical control machining program according to the measurement result to ensure that the reference surface of the tooth claw is not deviated from the left side and the right side.
The application of the detection clamp solves the defect that the reference surface of the prior detection tooth claw cannot read data, reduces the processing and manufacturing errors of the tooth claw head after the data is accurately measured, improves the precision, enables the product to meet the design requirements, and prolongs the service life of the mining tricone bit.

Claims (2)

1. A reference surface detection clamp for a tooth claw of a mining tricone bit is characterized by comprising a frame body, a clamping device and a pressing mechanism,
the frame body is of a frame structure with an inclined surface on the right side, and a working platform is arranged at the upper part of the frame body;
the clamping device comprises a positioning block, the bottom of the positioning block is a plane, the upper part of the positioning block is a V-shaped notch, the plane of the bottom of the positioning block is fixedly connected with the inclined plane on the right side of the frame structure through a bolt, and a positioning pin is arranged on the inclined plane on the right side of the V-shaped notch of the positioning block;
the pressing mechanism comprises a supporting frame and a pressing ejector rod, the supporting frame comprises two stand columns and a cross brace fixedly connected with the upper portions of the two stand columns, a threaded hole is formed in the middle of the cross brace, the pressing ejector rod comprises an ejector rod with external threads and a handle arranged on the upper portion of the ejector rod, the ejector rod penetrates through the threaded hole to be in threaded connection with the cross brace of the supporting frame, the two stand columns are fixedly connected with the two sides of a positioning block through bolts, and a stop block is arranged at the end portion, close to the clamping device, of the upper portion of the working platform.
2. The mining tricone bit claw datum plane inspection jig of claim 1, wherein the V-shaped notch is 120 °.
CN202121973821.5U 2021-08-23 2021-08-23 Reference surface detection clamp for tooth claw of mining tricone bit Active CN215847775U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121973821.5U CN215847775U (en) 2021-08-23 2021-08-23 Reference surface detection clamp for tooth claw of mining tricone bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121973821.5U CN215847775U (en) 2021-08-23 2021-08-23 Reference surface detection clamp for tooth claw of mining tricone bit

Publications (1)

Publication Number Publication Date
CN215847775U true CN215847775U (en) 2022-02-18

Family

ID=80241119

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121973821.5U Active CN215847775U (en) 2021-08-23 2021-08-23 Reference surface detection clamp for tooth claw of mining tricone bit

Country Status (1)

Country Link
CN (1) CN215847775U (en)

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