CN212227959U

CN212227959U - Hot forging coaxiality measuring gauge

Info

Publication number: CN212227959U
Application number: CN202020764972.9U
Authority: CN
Inventors: 徐庆发
Original assignee: Langfang Qingfa Industry And Trade Co ltd
Current assignee: Langfang Qingfa Auto Parts Technology Co.,Ltd.
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2020-12-25
Anticipated expiration: 2030-05-11

Abstract

The application provides a hot forging coaxiality measuring gauge which comprises a base, wherein a limiting mechanism and a measuring mechanism are respectively arranged at two ends of the base, and a pair of supports are arranged on the base; the measuring mechanism comprises a base, a measuring assembly is arranged on the base, a first through hole groove is formed in the base, and the measuring assembly comprises a first connecting rod, a second connecting rod and a dial indicator; the first connecting rod is connected in the first through hole groove through a pin shaft, and one end of the first connecting rod extends out of the base; the second connecting rod is connected in the first through hole groove through a pin shaft, the end portion of the first connecting rod is connected to the second connecting rod in a lap joint mode, and the measuring head of the dial indicator is in surface butt contact with the second connecting rod. The beneficial effect of this application is: the workpiece to be measured is placed on the pair of supports, one end of the workpiece to be measured is in butt contact with the limiting mechanism, the other end of the workpiece to be measured is in butt contact with the end portion of the first connecting rod in the measuring mechanism, and the corresponding dial indicator value is read for circumferential rotation of the workpiece to be measured, so that coaxiality data of the workpiece to be measured is obtained.

Description

Hot forging coaxiality measuring gauge

Technical Field

The utility model relates to a forge hot piece axiality measures technical field, concretely relates to forge hot piece axiality and measures utensil.

Background

The hot forging process is a common process in the machine manufacturing industry, wherein a forged piece with a thick head part and a hole and a thin rod part (such as various wrenches) is a common variety. For the hot forging with low coaxiality requirement, the coaxiality can be detected in a visual inspection mode; however, in the manufacturing of hot forged parts with higher coaxiality requirements, especially when the production capacity of the hot forged parts is large, if each workpiece is measured after the temperature is reduced, normal production is affected, and the production capacity is reduced, so that the coaxiality measuring gauge which can realize real-time measurement of the workpiece at high temperature and is simple to operate is needed.

Disclosure of Invention

The application aims at the problems, and provides a hot forging coaxiality measuring gauge.

In a first aspect, the application provides a hot forging coaxiality measuring gauge which comprises a base, wherein two ends of the base are respectively provided with a limiting mechanism and a measuring mechanism, a pair of supports are arranged on the base corresponding to the limiting mechanism and the measuring mechanism, and a workpiece to be measured is placed on the pair of supports, so that two ends of the workpiece to be measured are respectively abutted and contacted with the limiting mechanism and the measuring mechanism; the measuring mechanism comprises a base, a measuring component is arranged on the base, a first through hole groove extending along the horizontal direction is arranged in the base, and the measuring component comprises a first connecting rod, a second connecting rod and a dial indicator; the middle part of the first connecting rod is rotatably connected in the first through hole groove through a pin shaft, and one end of the first connecting rod, which corresponds to the support, extends out of the base; the middle part of the second connecting rod is rotatably connected in the first through hole groove through a pin shaft, one end, far away from the support, of the first connecting rod is connected to the corresponding second connecting rod in a lap joint mode, the surface of the base corresponds to one end, far away from the first connecting rod, of the second connecting rod is provided with an inwards-sunken first groove, the first groove is communicated with the first through hole groove, the extending direction of the first groove is perpendicular to the first through hole groove, and a measuring head of the dial indicator penetrates through the first groove to be in butt contact with the surface of the second connecting rod.

According to the technical scheme that this application embodiment provided, stop gear is including fixing the baffle of keeping away from measuring mechanism one side tip at the base, it has the internal screw thread through-hole to correspond the support setting on the baffle, pass through on the baffle through-hole screw thread cover is established and is corresponded the butt joint stick that the support set up.

According to the technical scheme that this application embodiment provided, correspond on the base sets up the slide rail, the base bottom corresponds the slide rail sets up the card strip, the card strip can joint with sliding in the slide rail.

According to the technical scheme provided by the embodiment of the application, the end part of one end, corresponding to the support, of the first connecting rod is provided with a spherical abutting joint.

According to the technical scheme provided by the embodiment of the application, a plurality of heat dissipation holes are uniformly formed in the butt joint.

According to the technical scheme that this application embodiment provided, the one end tip that the first connecting rod corresponds the second connecting rod sets up the arc jut, correspond on the second connecting rod the arc jut sets up the overlap joint plane, the arc jut with overlap joint plane butt contact can be followed the overlap joint plane slides.

According to the technical scheme provided by the embodiment of the application, a plurality of rotatable first balls are embedded in the surface of one end part of the abutting rod close to the support.

According to the technical scheme provided by the embodiment of the application, the surface of the support is inwards sunken to form a second groove, the second groove is internally connected with a bearing part matched with the surface profile of the workpiece to be detected, and the bearing part is fixed in the second groove through a bolt.

According to the technical scheme provided by the embodiment of the application, a plurality of rotatable second balls are embedded in the surface of the supporting part.

The invention has the beneficial effects that: the application provides a hot forging axiality measures concrete technical scheme who examines utensil places the work piece that awaits measuring on a pair of support to make its one end and stop gear butt contact, the other end and the tip butt of the head rod among the measuring mechanism, the corresponding percentage table numerical value is read to the work piece that circumference rotation awaits measuring, thereby acquires the work piece axiality data that awaits measuring, has easy operation, advantage that quick, conveniently acquire hot forging axiality data.

Drawings

FIG. 1 is a schematic cross-sectional view of a first embodiment of the present application;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is a schematic top view of a first embodiment of the present application;

FIG. 4 is a schematic view of the first embodiment of the present application showing the structure of the retainer in the bracket;

the text labels in the figures are represented as: 100. a base; 200. a limiting mechanism; 210. a baffle plate; 220. A butt-joint rod; 300. a measuring mechanism; 310. a base; 311. a first through-hole groove; 313. clamping the strip; 320. A first connecting rod; 321. a butting head; 322. a protrusion portion; 323. a pin shaft; 330. a second connecting rod; 331. a ground plane; 340. a dial indicator; 400. a support; 410. a second groove; 420. a bearing part; 421. a second ball bearing; 500. a slide rail.

Detailed Description

In order that those skilled in the art will better understand the technical solutions of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings, and the description of the present section is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention in any way.

Fig. 1 to 3 are schematic diagrams illustrating a first embodiment of the present application, which include a base 100, two ends of the base 100 are respectively provided with a limiting mechanism 200 and a measuring mechanism 300, a pair of brackets 400 is disposed on the base 100 corresponding to the limiting mechanism 200 and the measuring mechanism 300, and a workpiece to be measured is placed on the pair of brackets 400 and two ends of the workpiece are respectively in abutting contact with the limiting mechanism 200 and the measuring mechanism 300. In this embodiment, the workpiece to be measured is placed on the pair of brackets 400, so that the limiting mechanism 200 and the measuring mechanism 300 are abutted to the two ends of the workpiece to be measured, and the coaxiality of the end of the workpiece to be measured is measured by the measuring mechanism 300.

The measuring mechanism 300 comprises a base 310, a measuring component is arranged on the base 310, a first through hole slot 311 extending along the horizontal direction is arranged in the base 310, and the measuring component comprises a first connecting rod 320, a second connecting rod 330 and a dial indicator 340; the middle part of the first connecting rod 320 is rotatably connected in the first through hole 311 by a pin 323, and one end of the first connecting rod 320 corresponding to the bracket 400 extends out of the base 310; the middle part of the second connecting rod 330 is rotatably connected in the first through hole slot 311 through a pin 323, one end, far away from the support 400, of the first connecting rod is lapped on the corresponding second connecting rod 330, the surface of the base 310 is provided with an inwards concave first groove corresponding to one end, far away from the first connecting rod 320, of the second connecting rod 330, the first groove is communicated with the first through hole slot 311, the extending direction of the first groove is perpendicular to the first through hole slot 311, and a measuring head of the dial indicator 340 penetrates through the first groove to be in abutting contact with the surface of the second connecting rod 330.

In this embodiment, the workpiece to be measured is placed on the pair of supports 400, one end of the workpiece to be measured is in abutting contact with the limiting mechanism 200, and the other end of the workpiece to be measured is in abutting contact with the end of the first connecting rod 320 in the measuring mechanism 300. In this embodiment, the first connecting rod 320 and the second connecting rod 330 are both rotatably and horizontally connected in the base 310 through the pin 323, the measuring head of the dial indicator 340 is vertically abutted and contacted with the second connecting rod 330, when the coaxiality of the workpiece to be measured is different in circumferential rotation, the first connecting rod 320 is driven to swing in the vertical direction by taking the pin 323 as the center, and the second connecting rod 330 rotatably driven to overlap with the first connecting rod 320 is driven to swing vertically by taking the pin 323 of the second connecting rod as the center, so that the measurement values of the dial indicator 340 are different, and the coaxiality data of the workpiece to be measured is calculated according to the difference between the measurement values.

In a preferred embodiment, in order to make the end of the first connecting rod 320 in the measuring mechanism 300 contact with the end of the workpiece to be tested and adapt to the testing requirements of workpieces to be tested with different lengths, the measuring mechanism 300 is arranged on the base 100 in a movably adjustable structure: the base 100 is provided with a slide rail 500 corresponding to the base 310, the bottom of the base 310 is provided with a clamping strip 313 corresponding to the slide rail 500, and the clamping strip 313 can be clamped in the slide rail 500 in a sliding manner. In the preferred embodiment, the purpose of abutting the end of the first connecting rod 320 against the end of the workpiece to be measured is satisfied by adjusting the position of the base 310 on the base 100 by engaging the locking bar 313 in the sliding rail 500 and sliding the locking bar 313 in the sliding rail 500.

In a preferred embodiment, the limiting mechanism 200 includes a baffle 210 fixed at an end of the base 100 far away from the measuring mechanism 300, the baffle 210 is provided with a through hole with internal threads corresponding to the bracket 400, and the baffle 210 is sleeved with an abutting rod 220 corresponding to the bracket 400 through the through hole. In this preferred embodiment, threaded connection's butt rod 220 on baffle 210 contacts with the tip butt of the work piece that awaits measuring, for the measurement demand of the work piece that awaits measuring of adaptation different length to and finely tune when convenient and the work piece butt that awaits measuring, accessible threaded connection adjustment butt rod 220 stretches out the length of baffle 210, thereby increases the flexibility that stop gear 200 used.

In a preferred embodiment, the first connecting rod 320 is provided with a spherical abutting head 321 corresponding to one end of the bracket 400. The end part of the first connecting rod 320 in abutting contact with the workpiece to be measured is set as the spherical abutting head 321, so that the friction force in contact with the workpiece to be measured can be reduced, and the coaxial condition of the workpiece to be measured can be more sensitively reflected due to the small contact area.

Preferably, a plurality of heat dissipation holes are uniformly formed on the abutting head 321. Thereby influence the use of percentage table 340 for making butt joint head 321 on the first connecting rod 320 can not be with the large amount of heat transfer on the work piece that awaits measuring to the percentage table 340, consequently set up a plurality of louvres on butt joint head 321 in order to carry out rapid cooling to the work piece that awaits measuring of butt joint forge piece, and then also realize the purpose of the real-time quick measurement work piece in the production, needn't wait for the cooling process of forge piece for a long time.

In a preferred embodiment, an end of the first connecting rod 320 corresponding to one end of the second connecting rod 330 is provided with an arc-shaped protrusion 322, the second connecting rod 330 is provided with a lapping plane 331 corresponding to the arc-shaped protrusion 322, and the arc-shaped protrusion 322 is in abutting contact with the lapping plane 331 and can slide along the lapping plane 331. In the preferred embodiment, the arc-shaped protrusion 322 at the end of the first connecting rod 320 is overlapped on the overlapping plane 331 of the second connecting rod 330, so that the friction force of the contact between the two can be reduced, and the vertical swing of the first connecting rod 320 can be sensitively transmitted to the second connecting rod 330 to be measured and known by the dial indicator 340. When the first connecting rod 320 swings vertically, the protrusion 322 slides along the lapping plane 331 to improve the stability of the connection.

In a preferred embodiment, a plurality of first rotatable balls are embedded in an end surface of the abutting rod 220 near the bracket 400. The friction force of the abutting rod 220 and a workpiece to be measured when the abutting rod 220 is contacted can be reduced by embedding the first ball into the end part of the abutting rod 220, so that the stability and the accuracy of the measuring process are improved.

In a preferred embodiment, as shown in fig. 4, a second groove 410 is recessed into the surface of the bracket 400, a supporting portion 420 adapted to the surface profile of the workpiece to be measured is connected to the second groove 410, and the supporting portion 420 is fixed in the second groove 410 by a bolt. In the preferred embodiment, the workpiece to be measured is placed in the supporting portion 420 of the bracket 400, and the profile of the supporting portion 420 is matched with the profile of the workpiece to be measured, so that the placing stability of the workpiece to be measured can be increased, and the workpiece to be measured can conveniently rotate within 360 degrees in the supporting portion 420.

Preferably, a plurality of rotatable second balls 421 are embedded in the surface of the supporting part 420. The second ball 421 is embedded in the bearing part 420, so that the friction force between the workpiece to be measured and the surface of the bearing part 420 during rotation in the bearing part 420 can be reduced, the workpiece to be measured can rotate circumferentially more smoothly, and the stability and accuracy of the system are improved.

The principles and embodiments of the present application are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present application, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments, or may be learned by practice of the invention.

Claims

1. The hot forging coaxiality measuring gauge is characterized by comprising a base (100), wherein two ends of the base (100) are respectively provided with a limiting mechanism (200) and a measuring mechanism (300), a pair of supports (400) are arranged on the base (100) and correspond to the limiting mechanism (200) and the measuring mechanism (300), and a workpiece to be measured is placed on the pair of supports (400) and two ends of the workpiece to be measured are respectively abutted and contacted with the limiting mechanism (200) and the measuring mechanism (300);

the measuring mechanism (300) comprises a base (310), a measuring component is arranged on the base (310), a first through hole groove (311) extending along the horizontal direction is arranged in the base (310), and the measuring component comprises a first connecting rod (320), a second connecting rod (330) and a dial indicator (340);

the middle part of the first connecting rod (320) is rotatably connected in the first through hole groove (311) through a pin shaft (323), and one end of the first connecting rod (320) corresponding to the support (400) extends out of the base (310); the middle part of second connecting rod (330) is rotationally connected in first through hole groove (311) through round pin axle (323), the one end overlap joint that support (400) were kept away from to the first connecting rod is on second connecting rod (330) that corresponds, base (310) surface corresponds the one end that first connecting rod (320) were kept away from to second connecting rod (330) sets up inside sunken first recess, first recess and first through hole groove (311) intercommunication, the extending direction of first recess is perpendicular with first through hole groove (311), the gauge head of percentage table (340) passes first recess and second connecting rod (330) surface butt contact.

2. The hot forging coaxiality measuring gauge according to claim 1, wherein the limiting mechanism (200) comprises a baffle (210) fixed to the end portion, far away from the measuring mechanism (300), of the base (100), a through hole with an internal thread is formed in the baffle (210) and corresponds to the support (400), and a butting rod (220) arranged in the baffle (210) and corresponds to the support (400) is sleeved on the baffle (210) through the through hole in a threaded mode.

3. The hot forging coaxiality measuring gauge according to claim 1, wherein a slide rail (500) is arranged on the base (100) corresponding to the base (310), a clamping strip (313) is arranged at the bottom of the base (310) corresponding to the slide rail (500), and the clamping strip (313) can be clamped in the slide rail (500) in a sliding manner.

4. The hot forging coaxiality measuring gauge according to claim 1, wherein a spherical abutting head (321) is arranged at one end of the first connecting rod (320) corresponding to the bracket (400).

5. The hot forging coaxiality measurement gauge according to claim 4, wherein a plurality of heat dissipation holes are uniformly formed in the abutting head (321).

6. The hot forging coaxiality measuring gauge according to claim 1, wherein an arc-shaped protruding portion (322) is arranged at one end portion, corresponding to the second connecting rod (330), of the first connecting rod (320), an overlapping plane (331) is arranged on the second connecting rod (330) corresponding to the arc-shaped protruding portion (322), and the arc-shaped protruding portion (322) is in abutting contact with the overlapping plane (331) and can slide along the overlapping plane (331).

7. The hot forging coaxiality measurement gauge according to claim 2, wherein a plurality of first rotatable balls are embedded in an end surface of the abutting rod (220) close to the bracket (400).

8. The hot forging coaxiality measuring gauge according to claim 1, wherein a second groove (410) is formed in the surface of the support (400) in an inward concave mode, a bearing portion (420) matched with the surface contour of a workpiece to be measured is connected into the second groove (410), and the bearing portion (420) is fixed in the second groove (410) through a bolt.

9. The tool for checking the coaxiality of the hot forged piece according to claim 8, wherein a plurality of second rotatable balls (421) are embedded in the surface of the supporting portion (420).