Spring pressing clamping jaw

Abstract

The utility model provides a spring pressing clamping jaw. An air cylinder rod is arranged at the top of an air cylinder in a penetrating mode. An adjusting hole is formed in the side, away from the air cylinder, of the pressing rod; the elastic pressure adjusting module is arranged in the adjusting hole in a penetrating manner; according to the clamping jaw, the air cylinder, the pressing rod, the elastic pressure adjusting module and the EGR connecting side positioning module are adopted, an existing hard connection installation structure is changed into a spring type structure, a flange and a Boss face part in EGR are in a free connection state with the clamping jaw, the clamping jaw is not prone to deformation, and the clamping jaw is not prone to deformation. During subsequent testing, if the flange part in EGR is subjected to hard force of pressure, the position of the flange or the Boss surface deviates, and the Boss surface positioning pressing plate and the flange connecting plate which are connected with the flange or the Boss surface also rotate along with the flange or move up and down along the adjusting rod, so that hole site detection data on the EGR flange and the Boss surface are accurate.

Description

TECHNICAL FIELD

[0001] The utility model relates to RGR detection fixture design field, especially in the technical field of EGR flange face and BOSS face positioning connection, specifically be a kind of spring presss from both sides jaw. BACKGROUND

[0002] Product EGR's flange and BOSS face are not completely attached after installation with fixture, and the prior art is used for connecting jaw and flange for hard connection, after the hard force of flange, the position of flange hole has changed, and the position detection data of product flange hole is inaccurate, a new connecting fixture needs to be designed, which can be affected by the stress deviation of EGR flange and Boss face to a certain extent, improve the accuracy of the position detection data of the hole on the product EGR flange and Boss face. SUMMARY

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a spring presss from both sides jaw for solving the difficulties of the prior art.

[0004] To achieve the above object and other related purposes, the utility model provides a spring presss from both sides jaw, which comprises:

[0005] A cylinder 1, a cylinder rod 11 is arranged at the top of the cylinder 1;

[0006] A pressing rod 2 is arranged at the top of the cylinder rod 11 by bolt connection, and an adjusting hole 21 is formed in the side of the pressing rod 2 away from the cylinder 1;

[0007] An elastic pressure adjusting module 3 is arranged in the adjusting hole 21;

[0008] An EGR connecting side positioning module 4 is arranged at the bottom of the elastic pressure adjusting module 3 by thread cooperation.

[0009] According to the preferred scheme, the elastic pressure adjusting module 3 comprises:

[0010] An adjusting rod 31 is arranged in the adjusting hole 21, and an integral limiting head 32 is arranged at the top and bottom of the adjusting rod 31;

[0011] A threaded hole 33 is formed in the middle of the limiting head 32 at the bottom of the adjusting rod 31;

[0012] A spring 34 is sleeved at the bottom of the adjusting rod 31, the top of the spring 34 abuts against the pressing rod 2, and the bottom of the spring 34 abuts against the limiting head 32 at the bottom of the adjusting rod 31.

[0013] According to the preferred scheme, the limiting head 32 has an outer diameter greater than the hole diameter of the adjusting hole 21.

[0014] According to a preferred scheme, the adjusting rod 31 is a light rod, the adjusting hole 21 is a light hole, and the adjusting rod 31 moves up and down along the inner side wall of the adjusting hole 21.

[0015] According to a preferred scheme, the EGR connecting side positioning module 4 comprises:

[0016] An L-shaped connecting rod 41 is arranged below the limiting head 32 of the adjusting rod 31, and a flange connecting plate 42 is arranged on one side of the L-shaped connecting rod 41, and a plurality of EGR flange positioning connecting holes 43 are arranged at equal intervals in the middle of the flange connecting plate 42.

[0017] A Boss face positioning pressing plate 44 is arranged below the L-shaped connecting rod 41, and Boss face positioning connecting holes 45 are arranged on the left and right sides of the Boss face positioning pressing plate 44 away from the adjusting rod 31.

[0018] A through hole 46 is arranged in the middle of the L-shaped connecting rod 41 and the Boss face positioning pressing plate 44, and the top of the through hole 46 is communicated with the threaded hole 33.

[0019] A connecting bolt 47 is arranged at the bottom of the Boss face positioning pressing plate 44, and the top of the connecting bolt 47 passes through the Boss face positioning pressing plate 44 and the L-shaped connecting rod 41 in sequence along the through hole 46 and is clamped in the threaded hole 33 in a threaded manner.

[0020] According to a preferred scheme, the L-shaped connecting rod 41 and the Boss face positioning pressing plate 44 rotate along the central axis of the connecting bolt 47.

[0021] The utility model discloses a cylinder, pressing rod, elastic pressure adjusting module and EGR connecting side positioning module, and the existing hard connection installation structure becomes spring type structure, makes EGR middle flange and Boss face part and the present claw present free connection state, and after subsequent test, if the flange part in EGR is pressed by the hard force, the flange or the Boss face position offset, and the Boss face positioning pressing plate and the flange connecting plate connected with it also rotate or move up and down along the adjusting rod, so that the data of EGR flange and Boss face upper hole position detection are accurate.

[0022] The most preferred embodiment of the utility model will be described in more detail below with reference to the accompanying drawings, so that the features and advantages of the utility model can be easily understood. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The utility model discloses a three-dimensional structure schematic diagram is shown as the utility model;

[0024] Figure 2The installation schematic diagram of the adjusting rod is shown in the utility model.

[0025] Figure 3 The exploded view of the EGR connecting side positioning module in the utility model is shown.

[0026] Label explanation

[0027] 1, cylinder; 11, cylinder rod;

[0028] 2, pressing rod; 21, adjusting hole;

[0029] 3, elastic pressure adjusting module; 31, adjusting rod; 32, limiting head; 33, threaded hole; 34, spring;

[0030] 4, EGR connecting side positioning module; 41, L-shaped connecting rod; 42, flange connecting plate; 43, flange positioning connecting hole; 44, boss surface positioning pressing plate; 45, boss surface positioning connecting hole; 46, through hole; 47, connecting bolt; Specific implementation

[0031] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme of the utility model embodiment will be described clearly and completely in the following combined with the drawings of the utility model specific embodiment. The same reference signs in the drawings represent the same parts. It should be noted that the described embodiment is a part of the embodiment of the utility model, rather than all the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0032] Compared with the embodiment shown in the drawings, the feasible implementation scheme within the protection scope of the utility model can have fewer components, have other components not shown in the drawings, have different components, have differently arranged components or differently connected components, etc. In addition, two or more components in the drawings can be realized in a single component, or a single component shown in the drawings can be realized as a plurality of separate components.

[0033] Unless otherwise defined, technical terms or scientific terms used herein shall have the ordinary meanings as understood by one of ordinary skill in the art to which this patent belongs. The terms "first", "second", and similar terms as used in the patent specification and claims of this patent application do not denote any order, quantity, or importance, but are used to distinguish different components. Similarly, the terms "one" or "a" or similar terms do not necessarily denote the quantity of the components. The terms "comprise", "comprising", and similar terms mean that the elements or objects before the term encompass the elements or objects listed after the term, and equivalents thereof, and do not exclude other elements or objects. The terms "connected" or "coupled" or similar terms do not necessarily mean physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", and the like only represent relative positional relationships, which can change when the absolute positions of the described objects change.

[0034] The spring pressing clamp is used in the connecting side position degree detection process in the EGR, and the type of the EGR to be detected is not limited, but the structure of the cylinder 1, the pressing rod 2, the elastic pressure adjusting module 3 and the EGR connecting side positioning module 4 is particularly suitable for the flange BOSS surface positioning connection in the EGR.

[0035] In general, the spring pressing clamp mainly comprises a cylinder 1, a pressing rod 2, an elastic pressure adjusting module 3 and an EGR connecting side positioning module 4, which can be seen from Figure 1 which shows the arrangement relationship of the cylinder 1, the pressing rod 2, the elastic pressure adjusting module 3 and the EGR connecting side positioning module 4.

[0036] The utility model discloses a spring compression clamping jaw drives cylinder 1 to drive cylinder stem 11 to control plunger 2 to make the boss face positioning presser plate 44 and EGR connecting side boss face adhere to each other, and continues to control plunger 2 to make adjusting rod 31 move down along adjusting hole 21, and spring 34 is compressed, according to the flange face and boss face of EGR connecting side, controls boss face positioning presser plate 44 and L type connecting rod 41 rotate along the central axis of connecting bolt 47, makes the bottom of boss face positioning presser plate 44 and one side flange connecting plate 42 of L type connecting rod 41 adhere to the flange face and boss face of EGR connecting side, and the flange face and boss face of EGR connecting side are connected to each other, and the installation structure of hard connection is changed into spring type structure, and the flange and boss face part in EGR and the clamping jaw present free connection state, and when testing subsequently, if the flange part in EGR is pressed by the hard force, the flange or boss face position deviation, and the boss face positioning presser plate 44 and flange connecting plate 42 connected to each other also rotate or move up and down along adjusting rod 31, so that the data of EGR flange and boss face upper hole position detection is accurate.

[0037] The cylinder 1 top is provided with cylinder stem 11, and plunger 2 is arranged at the top of cylinder stem 11 through bolt connection, and adjusting hole 21 is formed in the side of plunger 2 away from cylinder 1.

[0038] The elastic pressure adjusting module 3 is arranged in adjusting hole 21, and the elastic pressure adjusting module 3 comprises adjusting rod 31, screw hole 33, limiting head 32 and spring 34, wherein adjusting rod 31 is arranged in adjusting hole 21, adjusting rod 31 is a light rod, adjusting hole 21 is a light hole, limiting head 32 is arranged at the top and bottom of adjusting rod 31, the outer diameter of limiting head 32 is greater than the hole diameter of adjusting hole 21, screw hole 33 is formed in the middle of limiting head 32 at the bottom of adjusting rod 31, spring 34 is arranged at the bottom of adjusting rod 31, the top of spring 34 abuts against plunger 2, the bottom of spring 34 abuts against limiting head 32 at the bottom of adjusting rod 31, adjusting rod 31 moves up and down along the inner side wall of adjusting hole 21,

[0039] The EGR connecting side positioning module 4 is arranged at the bottom of the elastic pressure adjusting module 3 through screw cooperation, and comprises an L-shaped connecting rod 41, a boss surface positioning pressing plate 44, a through hole 46 and a connecting bolt 47. The L-shaped connecting rod 41 is arranged below the limiting head 32 of the adjusting rod 31, and a flange connecting plate 42 is arranged on one side of the L-shaped connecting rod 41. A plurality of EGR flange positioning connecting holes 43 are equidistantly arranged in the middle of the flange connecting plate 42. The boss surface positioning pressing plate 44 is arranged below the L-shaped connecting rod 41, and boss surface positioning connecting holes 45 are arranged on the left and right sides of the boss surface positioning pressing plate 44 away from the adjusting rod 31. The through hole 46 is arranged in the middle of the L-shaped connecting rod 41 and the boss surface positioning pressing plate 44, and the top of the through hole 46 is communicated with the threaded hole 33. The connecting bolt 47 is arranged at the bottom of the boss surface positioning pressing plate 44, and the top of the connecting bolt 47 passes through the boss surface positioning pressing plate 44 and the L-shaped connecting rod 41 along the through hole 46 and is clamped in the threaded hole 33 through screw cooperation. The L-shaped connecting rod 41 and the boss surface positioning pressing plate 44 rotate along the central axis of the connecting bolt 47.

[0040] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought of the present application should be covered by the claims of the present application.

Claims

1. A spring-actuated clamp jaw characterized by, Include: Cylinder (1), the cylinder (1) top is provided with cylinder rod (11); Pressing rod (2), the pressing rod (2) is arranged at the top of cylinder rod (11) by bolt connection, and the pressing rod (2) is provided with adjusting hole (21) away from the side of cylinder (1); Elastic pressure adjustment module (3), the elastic pressure adjustment module (3) is provided in adjusting hole (21); EGR connecting side positioning module (4), the EGR connecting side positioning module (4) is arranged at the bottom of elastic pressure adjustment module (3) by thread cooperation.

2. The spring-energized collet chuck of claim 1, wherein, The elastic pressure adjustment module (3) comprises: Adjusting rod (31), the adjusting rod (31) is provided in adjusting hole (21), and the top and bottom of the adjusting rod (31) are provided with integrated limit head (32); Threaded hole (33), the threaded hole (33) is arranged at the center of the limit head (32) at the bottom of adjusting rod (31); Spring (34), the spring (34) is sleeved at the bottom of adjusting rod (31), the top of the spring (34) abuts against pressing rod (2), and the bottom of the spring (34) abuts against the limit head (32) at the bottom of adjusting rod (31).

3. The spring-energized collet chuck of claim 2, wherein, The outer diameter of the limit head (32) is greater than the hole diameter of the adjusting hole (21).

4. The spring-actuated clamp jaw of claim 3, wherein, The adjusting rod (31) is a light rod, the adjusting hole (21) is a light hole, and the adjusting rod (31) moves up and down along the inner side wall of the adjusting hole (21).

5. The spring-actuated clamp jaw of claim 4, wherein, The EGR connecting side positioning module (4) comprises: L-shaped connecting rod (41), the L-shaped connecting rod (41) is arranged below the limit head (32) at the bottom of adjusting rod (31), one side of the L-shaped connecting rod (41) is provided with flange connecting plate (42), and a plurality of EGR flange positioning connecting holes (43) are arranged at the center of the flange connecting plate (42) at equal intervals; Boss surface positioning pressing plate (44), the Boss surface positioning pressing plate (44) is arranged below the L-shaped connecting rod (41), and the Boss surface positioning pressing plate (44) is provided with Boss surface positioning connecting hole (45) on the left and right sides away from the direction of adjusting rod (31); Through hole (46), the through hole (46) is arranged at the center of L-shaped connecting rod (41) and Boss surface positioning pressing plate (44), and the top of the through hole (46) is communicated with threaded hole (33); Connecting bolt (47), the connecting bolt (47) is arranged at the bottom of Boss surface positioning pressing plate (44), and the top of the connecting bolt (47) passes through Boss surface positioning pressing plate (44) and L-shaped connecting rod (41) in sequence along through hole (46) and is arranged in threaded hole (33) by thread cooperation.

6. The spring-energized collet chuck of claim 5, wherein, The L-shaped connecting rod (41) and the Boss surface positioning pressing plate (44) rotate along the central axis of the connecting bolt (47).

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