CN105806538B - A kind of projection welding bolt torque detecting apparatus and its detection method - Google Patents
A kind of projection welding bolt torque detecting apparatus and its detection method Download PDFInfo
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- CN105806538B CN105806538B CN201610184967.9A CN201610184967A CN105806538B CN 105806538 B CN105806538 B CN 105806538B CN 201610184967 A CN201610184967 A CN 201610184967A CN 105806538 B CN105806538 B CN 105806538B
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- projection welding
- welding bolt
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- torque
- circular cone
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/22—Investigating strength properties of solid materials by application of mechanical stress by applying steady torsional forces
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- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
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- Force Measurement Appropriate To Specific Purposes (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention discloses a kind of projection welding bolt torque detecting apparatus and its detection methods, belong to the body of a motor car manufacturing and detection field, it is time-consuming and laborious to solve existing detection means, increase the labor intensity of testing staff, increase testing cost, the problem of welded projection welding bolt cannot be detected, a kind of projection welding bolt torque detecting apparatus, the device includes the fixture connecting with the screwed one end of projection welding bolt, cover the sleeve on fixture, cover the circular cone on sleeve, with the ranging spanner of circular cone cooperation, the locking nut that is arranged on sleeve and the spring that on sleeve and both ends are separately connected circular cone and locking nut is set；It is able to detect welded projection welding bolt, different fixtures is cooperated to can be convenient the torque for detecting various parts；Can quickly, whether the torque of batch detection projection welding bolt meet the requirements.
Description
Technical field
The invention belongs to the body of a motor car manufacturing and detection fields, are related to a kind of detection device, and in particular to a kind of convex
Weld bolt torque detection device and its detection method.
Background technique
In auto manufacturing, the connection of components generally passes through solder joint, weld seam, bolt and glue and completes.Because of projection welding bolt
The dependable with function of connection, it is large batch of to be used for body of a motor car, chassis.After projection welding bolt welding is completed, need to protect
Demonstrate,prove the welding quality of projection welding bolt.The general method by detection projection welding bolt torque detects welding quality.Current projection welding spiral shell
There are two types of bolt torque detection methods, one is being welded on projection welding bolt to formulate on sheet metal component, with the destructive hand such as spanner percussion
Section detection projection welding bolt quality, but its torque on different welded parts that is welded on of projection welding bolt is different, Er Qiezhen
To welded projection welding bolt, this kind of method can not be detected；Another method is pulled using additional detection nut and digital display
Hand is realized.When need high-volume, quickly detection when, using the above method not only be easy to cause detection nut damage, need through
Often replacement, and disassembly nut is time-consuming and laborious, not only increases the labor intensity of testing staff, and increase testing cost.
Summary of the invention
According to the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is to propose a kind of projection welding bolt torque
Setting torque, the overall viewing range of circular cone and tapered shaft, solution is arranged by locking nut in detection device and its detection method
Existing detection means of having determined is time-consuming and laborious, increases the labor intensity of testing staff, increases testing cost, cannot detect welded
Projection welding bolt the problem of, the present invention is able to detect welded projection welding bolt, and different fixtures is cooperated to can be convenient detection
The torque of various parts；Can quickly, whether the torque of batch detection projection welding bolt meet the requirements.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows:
A kind of projection welding bolt torque detecting apparatus, the device include one and connect with the screwed one end of projection welding bolt
Fixture covers the sleeve on fixture, covers the circular cone on sleeve, and the ranging spanner with circular cone cooperation is arranged on sleeve
Locking nut and the spring that on sleeve and both ends are separately connected circular cone and locking nut is set.
The fixture includes two clamping elements, pin shaft, positioning bolt, pressure ring, cam and the second pin shaft, two clamping elements
One end is hinged by pin shaft, and a plurality of dovetail groove, two one end of clamping element far from pin shaft are equipped on the outside of the middle part of two clamping elements
Equipped with U-shaped hole, positioning bolt passes through U-shaped hole and pressure ring is connect with cam by the second pin shaft.Described two clamping elements are opposite
A circular groove is respectively provided on one side, the diameter of two circular grooves is identical and two circular grooves are symmetrical.
The axis of second pin shaft is vertical with the axis of positioning bolt.One end of the sleeve is set there are two opening, and two openings are set
It sets point-blank, the inner wall of sleeve is equipped with the trapezoidal item cooperated with dovetail groove.The width of the trapezoidal item is less than trapezoidal
The width of slot.The sleeve is divided into two sections different and one section of tapered shaft of diameter, diameter different two sections by taper axis connection,
The outside of the small one end of the sleeve diameter is equipped with screw thread, and the circular cone is equipped with boss and the taper with tapered shaft cooperation
Hole, circular cone outside are equipped with two chamfered edges cooperated with ranging spanner.The tapered shaft is hollow round table, and the maximum of tapered shaft is straight
Different from diameter two sections of diameters are equal respectively for diameter and minimum diameter.The locking nut is cooperated by screw thread and sleeve, bullet
The small one end of diameter on sleeve is arranged in spring, and the both ends of spring are separately connected circular cone and locking nut.
A kind of detection method of projection welding bolt torque detecting apparatus,
Step 1: projection welding bolt is welded on welded part；
Step 2: the part that projection welding bolt stretches out weldment is fixedly clamped by the circular groove of two clamping elements of fixture,
Rotation cam；
Step 3: adjustment locking nut, using the rotation of locking nut come the compression travel of adjustment spring, spring compression cone
Shape block has the function that adjust the torque that can be born between circular cone and tapered shaft, this torque by adjusting locking nut
The torque standard value exactly set；
Step 4: ranging spanner is turned, to torque is applied between circular cone and tapered shaft, when torque is more than the standard of setting
When value, circular cone can relatively rotate with tapered shaft, then prove that the torque of projection welding bolt is met the requirements；If in circular cone and cone
Before shape axis can relatively rotate, projection welding bolt is just had rotated, then proves that the torque of projection welding bolt is unsatisfactory for requiring.
The medicine have the advantages that having dovetail groove on the outside of projection welding bolt fixture, it can cooperate with the trapezoidal item of sleeve, will turn round
Square accurately passes；By the overall viewing range of circular cone and tapered shaft, once torque is met the requirements, phase occurs for the two
To rotation, it is easy detection identification；The compression degree of spring can be adjusted easily by locking nut, and then adjust detection torque
Standard；Different fixtures is cooperated to can be convenient the torque for detecting various parts；It being capable of quick, batch detection projection welding bolt torque
Whether meet the requirements.
Detailed description of the invention
Content expressed by this specification attached drawing and the label in figure are briefly described below:
Fig. 1 is the projection welding bolt torque detecting apparatus structure chart of a specific embodiment of the invention；
Fig. 2 is the projection welding bolt torque detecting apparatus cross-sectional view of a specific embodiment of the invention；
Fig. 3 is the sleeve local structural graph of a specific embodiment of the invention；
Fig. 4 is the circular cone local structural graph of a specific embodiment of the invention；
Fig. 5 is the fixture local structural graph of a specific embodiment of the invention；
Fig. 6 is the projection welding bolt torque detecting apparatus schematic diagram of a specific embodiment of the invention；
In figure: 1- ranging spanner；2- locking nut；3- spring；4- sleeve；5- cam；6- positioning bolt；7- pressure ring；8-
Fixture；9- circular cone；10- pin shaft；11-U type hole；12- screw thread；13- boss；The trapezoidal item of 14-；15- dovetail groove；16- tapered shaft；
17- bellmouth.
Specific embodiment
Below against attached drawing, by the description of the embodiment, for example related each component of a specific embodiment of the invention
Shape, construction, the mutual alignment between each section and connection relationship, the effect of each section and working principle, manufacturing process and
Operate with method etc., is described in further detail, to help those skilled in the art to inventive concept of the invention, technology
Scheme has more complete, accurate and deep understanding.
A kind of projection welding bolt torque detecting apparatus, the device include one and connect with the screwed one end of projection welding bolt
Fixture 8 covers the sleeve 4 on fixture 8, covers the circular cone 9 on sleeve 4, and the ranging spanner 1 cooperated with circular cone 9, setting exists
Locking nut 2 on sleeve 4 and the spring 3 that on sleeve 4 and both ends are separately connected circular cone 9 and locking nut 2 is set.
The fixture 8 includes two clamping elements, and one end of two clamping elements is hinged by pin shaft 10, and two clamping elements are opposite
One side on be respectively provided with a circular groove, the diameter of two circular grooves is identical and two circular grooves are mutually right
Claim.A plurality of dovetail groove 15 is equipped on the outside of the middle part of two clamping elements, two clamping elements are equipped with U-shaped hole far from one end of pin shaft 10
11, positioning bolt 6 passes through U-shaped hole 11 and pressure ring 7 is connect with cam 5 by the second pin shaft, the axis and positioning spiral shell of the second pin shaft
The axis of bolt 6 is vertical, and cam 5 can be rotated around the axis of the second pin shaft, and cam 5 can compress pressure ring 7 after rotating, after pressure ring 7 is pressed
Two clamping elements of meeting extrusion clamp 8, so as to shorten the distance between two clamping elements, so that two clamping elements are clamped and are measured
Projection welding bolt.
In order to cover in 8 medium position of fixture, one end of the sleeve 4 is set there are two opening, and two opening settings exist
On straight line, two openings can block the both ends of fixture 8, and the inner wall of sleeve 4 is equipped with trapezoidal item 14, the width of trapezoidal item 14
Degree is less than the width of dovetail groove 15, and trapezoidal item 14 can cooperate with dovetail groove 15.
The sleeve 4 is divided to two section and the one section tapered shaft 16 different for diameter, and different two sections of diameter pass through tapered shaft 16
Connection, the tapered shaft 16 are hollow round table, different from diameter two sections respectively of the maximum diameter and minimum diameter of tapered shaft 16
Diameter it is equal.The circular cone 9 is equipped with bellmouth 17, and bellmouth 17 can be covered in the outside of tapered shaft 16.Outside circular cone 9
If two chamfered edges are parallel to each other there are two chamfered edge, two chamfered edges and ranging spanner 1 cooperate.In order to cooperate with spring 3, the cone
Boss 13 is additionally provided on shape block 9, the diameter of boss 13 is greater than the diameter of spring 3.
The outside of the small one end of 4 diameter of sleeve is equipped with screw thread 12, and locking nut 2 is cooperated by screw thread 12 and sleeve 4,
One end that diameter is small on sleeve 4 is arranged in spring 3, and the both ends of spring 3 are separately connected circular cone 9 and locking nut 2.
A kind of detection method of projection welding bolt torque detecting apparatus, projection welding bolt are welded on welded part, projection welding bolt
The part for stretching out weldment is fixedly clamped by the circular groove of two clamping elements of fixture 8, rotation cam 5, to compress
Ring 7 prevents from generating sliding between projection welding bolt and fixture 8 so that two clamping elements closely clamp；Then locking nut is adjusted
2, using the rotation of locking nut 2 come the compression travel of adjustment spring 3, spring 3 compresses circular cone 9, and the compression travel of spring 3 is not
Together, so that the pressure between circular cone 9 and tapered shaft 16 is different, between circular cone 9 and tapered shaft 16, maximum static friction force is not yet
Together, so that the torque that can be born between circular cone 9 and tapered shaft 16 is also different, to reach tune by adjusting locking nut 2
The effect for the torque that can be born between whole circular cone 9 and tapered shaft 16, this torque are exactly the torque standard value set；It turns
Ranging spanner 1 applies torque between circular cone 9 and tapered shaft 16, when torque be more than setting standard value when, circular cone 9 with
Tapered shaft 16 can relatively rotate, then prove that the torque of projection welding bolt is met the requirements；If can be sent out in circular cone 9 and tapered shaft 16
Before raw relative rotation, projection welding bolt is just had rotated, then proves that the torque of projection welding bolt is unsatisfactory for requiring.
The invention has the following advantages that having dovetail groove 15 on the outside of projection welding bolt fixture, can match with the trapezoidal item 14 of sleeve
It closes, torque is accurately passed；By the overall viewing range of circular cone 9 and tapered shaft 16, once torque is met the requirements,
The two relatively rotates, and is easy detection identification；The compression degree of spring 3 can be adjusted easily by locking nut 2, and then adjusted
The standard of whole detection torque；Different fixtures 8 is cooperated to can be convenient the torque for detecting various parts.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements not by aforesaid way
Limitation, as long as the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out is used, or without changing
It is within the scope of the present invention into the conception and technical scheme of the invention are directly applied to other occasions.This hair
Bright protection scope should be determined by the scope of protection defined in the claims.
Claims (6)
1. a kind of projection welding bolt torque detecting apparatus, it is characterised in that: the device includes one screwed with projection welding bolt
The fixture (8) of one end connection, covers the sleeve (4) on fixture (8), covers the circular cone (9) on sleeve (4), with circular cone (9)
The survey square spanner (1) of cooperation, be arranged on sleeve (4) locking nut (2) and setting on sleeve (4) and both ends are separately connected
The spring (3) of circular cone (9) and locking nut (2)；The sleeve (4) is divided into two sections different and one section of tapered shaft of diameter
(16), it is connected by tapered shaft (16) for diameter different two sections, the outside of the small one end of sleeve (4) diameter is equipped with screw thread
(12), the circular cone (9) is equipped with boss (13) and the bellmouth (17) with tapered shaft (16) cooperation, and circular cone (9) is external
Equipped with two chamfered edges with survey square spanner (1) cooperation；The fixture (8) includes two clamping elements, pin shaft (10), positioning bolt
(6), one end of pressure ring (7), cam (5) and the second pin shaft, two clamping elements passes through pin shaft (10) hingedly, in two clamping elements
A plurality of dovetail groove (15) are equipped on the outside of portion, two clamping elements are equipped with U-shaped hole (11) far from one end of pin shaft (10), positioning bolt
(6) U-shaped hole (11) are passed through and pressure ring (7) is connect with cam (5) by the second pin shaft；In the opposite one side of described two clamping elements
It is respectively provided with a circular groove, the diameter of two circular grooves is identical and two circular grooves are symmetrical；Described
The axis of two pin shafts is vertical with the axis of positioning bolt (6).
2. projection welding bolt torque detecting apparatus according to claim 1, it is characterised in that: one end of the sleeve (4) is set
There are two opening, point-blank, the inner wall of sleeve (4) is trapezoidal equipped with cooperating with dovetail groove (15) for two opening settings
Item (14).
3. projection welding bolt torque detecting apparatus according to claim 2, it is characterised in that: the width of the trapezoidal item (14)
Less than the width of dovetail groove (15).
4. projection welding bolt torque detecting apparatus according to claim 1, it is characterised in that: the tapered shaft (16) is hollow
Rotary table, different from diameter two sections of diameters are equal respectively for the maximum diameter and minimum diameter of tapered shaft (16).
5. projection welding bolt torque detecting apparatus according to claim 1, it is characterised in that: the locking nut (2) passes through
Screw thread (12) and sleeve (4) cooperate, and spring (3) is arranged on sleeve (4) the small one end of diameter, the both ends of spring (3) and connects respectively
Connect circular cone (9) and locking nut (2).
6. a kind of detection method of projection welding bolt torque detecting apparatus according to claim 1, it is characterised in that: step 1:
Projection welding bolt is welded on welded part；Step 2: projection welding bolt stretches out the part of weldment by two clamping elements of fixture (8)
Circular groove be fixedly clamped, rotation cam (5)；Step 3: adjustment locking nut (2) utilizes the rotation of locking nut (2)
Carry out the compression travel of adjustment spring (3), spring (3) compresses circular cone (9), reaches adjustment taper by adjusting locking nut (2)
The effect for the torque that can be born between block (9) and tapered shaft (16), this torque are exactly the torque standard value set；Step 4:
It turns and surveys square spanner (1), apply torque between circular cone (9) and tapered shaft (16), when torque is more than the standard value of setting,
Circular cone (9) can relatively rotate with tapered shaft (16), then prove that the torque of projection welding bolt is met the requirements；If in circular cone
(9) before relatively rotating with tapered shaft (16), projection welding bolt is just had rotated, then proves that the torque of projection welding bolt is unsatisfactory for
It is required that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610184967.9A CN105806538B (en) | 2016-03-24 | 2016-03-24 | A kind of projection welding bolt torque detecting apparatus and its detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610184967.9A CN105806538B (en) | 2016-03-24 | 2016-03-24 | A kind of projection welding bolt torque detecting apparatus and its detection method |
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| Publication Number | Publication Date |
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| CN105806538A CN105806538A (en) | 2016-07-27 |
| CN105806538B true CN105806538B (en) | 2019-02-12 |
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| CN201610184967.9A Active CN105806538B (en) | 2016-03-24 | 2016-03-24 | A kind of projection welding bolt torque detecting apparatus and its detection method |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106124301B (en) * | 2016-08-17 | 2019-02-22 | 浙江吉利汽车研究院有限公司 | Bolt and nut weld strength test device and method |
| CN108469327B (en) * | 2018-03-14 | 2021-02-09 | 河海大学常州校区 | Torque testing device for stud welding joint |
| CN111413213B (en) * | 2020-03-31 | 2022-09-06 | 中国第一汽车股份有限公司 | Circular radial butt weld failure torque testing method |
| CN115979798B (en) * | 2023-03-20 | 2023-07-14 | 天津津荣天宇精密机械股份有限公司 | Joint for detecting screw welding torque intensity and using method thereof |
| CN116809447B (en) * | 2023-07-06 | 2024-03-19 | 浙江恒基永昕新材料股份有限公司 | Steering wheel cam torsion test equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205404024U (en) * | 2016-03-24 | 2016-07-27 | 安徽机电职业技术学院 | Projection welding bolt moment of torsion detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE10004720C1 (en) * | 2000-02-03 | 2001-08-16 | Bayerische Motoren Werke Ag | Device and method for checking the fastening point of a bolt having an external thread for torsional strength |
| US6799480B1 (en) * | 2003-02-24 | 2004-10-05 | Pilling Weck Incorporated | Screwdriver with torque measuring scale and method of making same |
| CN103196601B (en) * | 2013-03-07 | 2014-11-19 | 航天精工股份有限公司 | Method of detecting flange face bolt installation torque by using detecting device |
| CN203443726U (en) * | 2013-08-19 | 2014-02-19 | 浙江吉利汽车有限公司 | Torque measuring instrument of bearing surface projection welding bolt |
| CN104568281B (en) * | 2013-10-21 | 2017-02-08 | 浙江万向精工有限公司 | Vehicle wheel core shaft bolt pretightening force detection device |
| CN104568282B (en) * | 2013-10-21 | 2017-01-25 | 浙江万向精工有限公司 | Vehicle wheel bearing bolt pretightening force detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205404024U (en) * | 2016-03-24 | 2016-07-27 | 安徽机电职业技术学院 | Projection welding bolt moment of torsion detection device |
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