CN210603110U - Sleeve reinforced connecting rod type groove distance gauge - Google Patents

Abstract

The utility model belongs to the technical field of machining detects. A sleeve reinforcing connecting rod type groove distance gauge comprises a first rod piece, a second rod piece, a centering claw and a go-no gauge, wherein the first rod piece and the second rod piece are coaxially connected; the centering claw is arranged at the end part of the first rod piece; the go-no go gauge is arranged at the end part of the second rod piece; the centering device is characterized in that centering conical surfaces are symmetrically arranged at the bottom of the centering claw, L-shaped through and stop grooves are symmetrically arranged at the bottom of the through and stop gauge, a through gauge is formed between the through and stop grooves, and the bottom of the through and stop groove is a stop gauge. This application overall structure reasonable in design, it carries out the matched stack of gauge through assembling the assembled structure, guarantees its dimensional accuracy in the assembling process of each part, and its axiality of effectual control, straightness accuracy and amount of deflection simultaneously can be coupled through the structural design of centering claw and lead to the no-go gage in the measurement process, realize whether the quick discernment product is qualified.

Description

Sleeve reinforced connecting rod type groove distance gauge

Technical Field

The utility model belongs to the technical field of machining detects, concretely relates to sleeve reinforces rod-like groove distance gauge, it can be applied to in the scientific research of various long tube products in machining enterprise, combined material forming enterprise, military project field, production.

Background

In the production of certain long-pipe products, the problem of detecting the center distance between long-pipe ring grooves is often encountered. Because the long pipe is long, the precision of the common steel tape ruler and the steel plate ruler is usually within 0.5mm, and the length is within 2 meters. The length of the pipe exceeds 2 meters, the pipe cannot be used when the precision requirement is higher than 0.5, and particularly, when the long pipe has groove width errors and verticality errors, the measurement center distance also needs to be converted by a size chain, and the measurement precision cannot be ensured.

The common methods for measuring the center distance of the long pipe ring groove at present comprise steel tape ruler measurement, caliper coupling measurement and the like. The division value of the steel band ruler is up to 0.5mm, the deflection is overlarge when the steel band ruler is tensioned, and whether the steel band ruler is qualified or not is basically judged through estimation. The caliper connection can not ensure that the measured value is the shortest value, more personnel are needed, and the error is large. The two methods measure the groove edge distance, the actual groove width of the two sides is added and then divided by 2, and because the center distance is a closed ring in a size chain, the tolerance of the two groove widths and the groove edge distance in actual processing is tightened, so that the processing difficulty is increased. Self-made integral gauges are also adopted individually, and the self-made integral gauges are large in weight and need to be matched by a crane due to the fact that the self-made integral gauges are oversized and require good rigidity. The manufacture and the identification are difficult, and a large-scale precision machine tool and a provincial identification center are required. The methods have the advantages of complex operation, low efficiency, higher cost and difficult guarantee of precision, and are not suitable for the requirement of mass production.

Looking up literature data, some large-size measuring instruments such as laser range finders, 3D scanners, image range finders and the like are also available in the market, are measured by high-tech means, are expensive, complex to operate, low in efficiency, high in cost and high in requirements on use environments, and are not suitable for the requirements of field measurement in mass production.

Disclosure of Invention

The invention aims to solve the problems and the defects, and provides the sleeve reinforcing connecting rod type groove distance gauge which is reasonable in structural design, convenient to assemble, low in production cost and convenient to use, can ensure the coaxiality, the straightness and the deflection of the gauge, and is convenient to control the assembling precision and the measuring precision.

In order to realize the purpose, the adopted technical scheme is as follows:

a socket-reinforced rod-type slot gauge, comprising:

a first bar member;

a second rod, the first rod and the second rod being coaxially connected;

a centering claw provided at an end of the first rod; and

the go-no go gauge is arranged at the end part of the second rod piece;

the centering device is characterized in that centering conical surfaces are symmetrically arranged at the bottom of the centering claw, L-shaped through and stop grooves are symmetrically arranged at the bottom of the through and stop gauge, a through gauge is formed between the through and stop grooves, and the bottom of the through and stop groove is a stop gauge.

According to the utility model discloses sleeve reinforcement connects rod-type groove to apart from gauge, preferably, first member with the second member all includes:

a pipe body; and

the end socket is arranged at both ends of the pipe body, at least one part of the end socket is fixedly embedded in the pipe body, the outer end face of the end socket is a connecting face, and a connecting screw hole is formed in the end socket;

the first rod piece and the second rod piece are fixedly connected through a stud bolt.

According to the utility model discloses sleeve reinforcement connects rod-type groove to apart from gauge, preferably, still includes the sleeve pipe, the sleeve pipe matches the laminating cover and establishes first member with on the both ends that correspond between the second member, just sleeve pipe and the two that correspond be provided with set screw between the end.

According to the utility model discloses sleeve reinforcement connects rod-type groove to apart from gauge, preferably, first member with the overhead chamfer that is provided with in both ends that corresponds between the second member, set screw's tip and two the chamfer seam that the chamfer formed corresponds.

According to the utility model discloses sleeve reinforcement connects rod-type groove distance gauge, preferably, the centering claw with lead to all being provided with the through-hole on the no-go gage, the centering claw with lead to the no-go gage all to pass through bolted connection with the end that corresponds.

According to the utility model discloses sleeve reinforcement connects rod-type groove to apart from gauge, preferably, all be provided with the dismouting hole on the body of first member and second member.

According to the utility model discloses sleeve reinforcement connects rod-type groove apart from gauge, preferably, the body is cold-drawn thin wall steel pipe, the end is the metal block, the connection face of end is through abrasive machining.

According to the utility model discloses sleeve reinforcement connects rod-type groove to apart from gauge, preferably, two the lower extreme width of centering conical surface is narrower than the cell body width that corresponds, two the upper end width of centering conical surface is wider than the cell body width that corresponds.

By adopting the technical scheme, the beneficial effects are as follows:

this application overall structure reasonable in design, it carries out the matched stack of gauge through assembling the assembled structure, guarantees its dimensional accuracy in the assembling process of each part, and its axiality of effectual control, straightness accuracy and amount of deflection simultaneously can be through the structural design of centering claw and expert no-go gage in the measurement process, realize whether qualified quick discernment product.

The utility model provides an assembly type structure can carry out the adjustment of member length according to the product of difference to the assembly structure uniformity is good, can ensure the assembly precision between each subassembly after the assembly is accomplished, and improves its intensity, thereby satisfies the measurement of different groove distances, holistic low in production cost.

The method solves the problem of accurate measurement of the distance between the centers of the two ring grooves of the long pipe, and theoretically, the measurement error can be within 0.1 mm; secondly, the centering claw is adopted to solve the problem of groove measurement centering, and the defects of size chain conversion, machining precision improvement and the like are overcome; and a tubular connecting rod is adopted, the middle part of the sleeve is reinforced and accords with the mechanical principle, so that the weight is reduced, and the size and the form and position precision are ensured. The single section is within 2 meters, and the identification can be carried out by a general company-level identification station; fourthly, the go-no go gauge is adopted, so that the standard is clear, the measurement is convenient, and the judgment is rapid. The gauge adopts mechanical parts, is in rigid plane contact, and has the advantages of simple structure, easy manufacture, low cost and reliable work. Especially for batch products which need to be measured frequently, the method has the advantages of accurate measurement, lightness, rapidness, firmness, reliability and the like.

The method and the device can be further popularized, more products needing large-size ring groove center distance measurement can be improved in efficiency, cost and quality, measuring tools can be conveniently measured and identified, and the method and the device are particularly suitable for small and medium-sized enterprises and high in universality and economy. Has higher social benefit.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly described below. Wherein the drawings are only for purposes of illustrating some embodiments of the invention and are not to be construed as limiting the invention to all embodiments thereof.

Fig. 1 is a schematic structural diagram of a socket reinforcing rod type slot pitch gauge according to an embodiment of the present invention.

Fig. 2 is a side view of the structure of fig. 1.

Fig. 3 is a schematic structural view of a centering claw according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a go-no go gauge according to an embodiment of the invention.

Number in the figure:

110 is a first rod piece, 111 is a pipe body, 112 is an end head, 120 is a second rod piece, 130 is a stud bolt, 140 is a sleeve, 150 is a positioning screw, 160 is a chamfer, 170 is a sink groove, and 180 is a dismounting hole;

200 is a centering claw, 201 is a centering conical surface;

the reference numeral 300 is a go/no-go gauge, 301 is a go/no-go gauge, and 302 is a no-go gauge.

Detailed Description

Illustrative aspects of embodiments of the invention are described more fully hereinafter with reference to the accompanying drawings, in which specific embodiments of the invention are shown. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art.

In the description of the present invention, it should be understood that the terms "first" and "second" are used to describe various elements of the invention, and are not intended to limit any order, quantity, or importance, but rather are used to distinguish one element from another.

It should be noted that when an element is referred to as being "connected," "coupled," or "connected" to another element, it can be directly connected, coupled, or connected, but it is understood that intervening elements may be present therebetween; i.e., positional relationships encompassing both direct and indirect connections.

It should be noted that the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.

It should be noted that terms indicating orientation or positional relationship such as "upper", "lower", "left", "right", and the like, are used only for indicating relative positional relationship, which is for convenience in describing the present invention, and do not indicate that the device or element must have a specific orientation, be constructed and operated in a specific orientation; when the absolute position of the object to be described is changed, the relative positional relationship may also be changed accordingly.

Referring to fig. 1-4, the present application discloses a socket-reinforced rod type slot gauge, which comprises a first rod 110, a second rod 120, a centering claw 200 and a go-no go gauge 300, wherein the first rod 110 and the second rod 120 are coaxially connected; the centering pawl 200 is disposed at an end of the first rod 110; the go-no-go gauge 300 is provided at an end of the second rod 120; the bottom of the centering claw 200 is symmetrically provided with centering conical surfaces 201, and in the measuring process, the centering conical surfaces 201 are adapted to the groove width of a measured product (the widths of the lower ends of the two centering conical surfaces are narrower than the widths of the corresponding groove bodies, and the widths of the upper ends of the two centering conical surfaces are wider than the widths of the corresponding groove bodies), and the conical surfaces are precisely symmetrical to the rectangular blocks. When the conical surface contacts with two walls of the opening part of the product groove, the center is automatically aligned.

The bottom of the go-no go gauge 300 is symmetrically provided with L-shaped go-no go grooves, a go gauge 301 is formed between the two go-no go grooves, and the bottom of the two go-no go grooves is a no-go gauge 302, namely the bottom end of the go-no go gauge is provided with a rectangular block with double-sided steps in the length direction of the first rod piece and the second rod piece. The narrow part below the step is a go gauge, and the wide part above the step is a no-go gauge. The calculated value is obtained by adding half of the width of the centering claw and the pass-stop gauge to the length of the first rod piece and the second rod piece. The size of the go gauge and the no-go gauge is the maximum limit size and the minimum limit size calculated by the center distance and the width of the groove.

When the centering claw works, the centering claw is clamped into the product groove, the two centering conical surfaces are tightly contacted (only the centering conical surfaces are clamped into the product groove without moving), the go-no go gauge is clamped into the other product groove, and the product is qualified as long as the go-no go gauge can go into the opening of the groove and the no go end can not go.

Further, in order to further optimize the structure and ensure the overall assembly precision, the first rod piece and the second rod piece in this embodiment both include a tube body 111 and an end 112, the two ends of the tube body are both provided with the end 112, at least a part of the end is fixedly embedded in the tube body, the outer end surface of the end is a connection surface, and the end is provided with a connection screw hole; the first rod piece and the second rod piece are fixedly connected through the stud bolt 130, specifically, the tube body 111 is a cold-drawn thin-wall steel tube, the end 112 is a metal block, and the connecting surface of the end 112 is ground, so that the precision of a single rod piece can be guaranteed. Since the first rod 110 and the second rod 120 need to be connected by the stud bolt 130, a sink groove 170 is provided on the corresponding end head so that the stud bolt does not affect the calculation of the rod length.

In this embodiment, the sleeve 140 is further included, the sleeve 140 is fitted and sleeved on the two corresponding end heads between the first rod piece and the second rod piece, the positioning screws 150 are arranged between the sleeve and the two corresponding end heads, and regarding the connection relationship between the positioning screws and the end heads, in this embodiment, chamfers 160 are arranged on the two corresponding end heads between the first rod piece and the second rod piece, and the end portions of the positioning screws 150 correspond to the chamfers formed by the two chamfers 160, so that further calibration of coaxiality, concentricity and deflection is realized, the contact area of the connection structure of the two rod pieces is also increased, and the connection strength is increased.

Further, all be provided with the through-hole on centering claw 200 and lead to no-go gage 300, centering claw 200 and lead to no-go gage 300 all to pass through connecting bolt with the end that corresponds and be connected, all be provided with dismouting hole 180 on the body of first member and second member, through inserting the inserted bar, can carry out the dismouting of rod structure, the operation of being convenient for.

In the embodiment, the connection between the end head and the pipe body can be welded by adopting a welding structure, one part of the end head is matched, attached and sleeved in the pipe body, and then is welded and fixed, so that the end head is ground, and the precision of the length is guaranteed; the processing of connecting the screw is more convenient for guarantee its axiality and concentricity. The thickness and the length of the sleeve can be properly adjusted according to the thickness of the extension bar and the size of the total length so as to meet the requirements of coaxiality, straightness and deflection.

While the preferred embodiments for carrying out the invention have been described in detail, it should be understood that they have been presented by way of example only, and not limitation as to the scope, applicability, or configuration of the invention in any way. The scope of the invention is defined by the appended claims and equivalents thereof. Many modifications may be made to the foregoing embodiments by those skilled in the art, which modifications are within the scope of the present invention.

Claims (8)

1. A sleeve reinforcing extension rod type groove distance gauge is characterized by comprising:

a first bar member;

a second rod, the first rod and the second rod being coaxially connected;

a centering claw provided at an end of the first rod; and

the go-no go gauge is arranged at the end part of the second rod piece;

the centering device is characterized in that centering conical surfaces are symmetrically arranged at the bottom of the centering claw, L-shaped through and stop grooves are symmetrically arranged at the bottom of the through and stop gauge, a through gauge is formed between the through and stop grooves, and the bottom of the through and stop groove is a stop gauge.

2. A thimble-reinforced bar slot gauge according to claim 1, wherein the first bar and the second bar each comprise:

a pipe body; and

the end socket is arranged at both ends of the pipe body, at least one part of the end socket is fixedly embedded in the pipe body, the outer end face of the end socket is a connecting face, and a connecting screw hole is formed in the end socket;

the first rod piece and the second rod piece are fixedly connected through a stud bolt.

3. The socket-reinforced bar-type slot distance gauge according to claim 2, further comprising a sleeve, wherein the sleeve is fit and fitted over the two corresponding ends of the first bar and the second bar, and a positioning screw is disposed between the sleeve and the two corresponding ends.

4. A socket-reinforced rod gauge according to claim 3, wherein chamfers are provided at opposite ends of the first rod and the second rod, and the ends of the set screw correspond to the chamfers formed by the chamfers.

5. A socket reinforcing connecting rod type slot distance gauge according to any one of claims 2-4, wherein the centering claw and the go-no go gauge are provided with through holes, and the centering claw and the go-no go gauge are connected with corresponding end heads through bolts.

6. A socket-and-spigot joint bar type slot gauge according to any one of claims 2-4, wherein said first and second bars have holes for attachment and detachment of the respective tubular bodies.

7. A socket-reinforced rod-connecting type slot pitch gauge according to any one of claims 2 to 4, wherein the pipe body is a cold-drawn thin-walled steel pipe, the end head is a metal block, and the connecting surface of the end head is ground.

8. The socket-reinforced rod-connecting type slot distance gauge according to claim 1, wherein the widths of the lower ends of the two centering conical surfaces are narrower than the widths of the corresponding slot bodies, and the widths of the upper ends of the two centering conical surfaces are wider than the widths of the corresponding slot bodies.

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