CN211840752U

CN211840752U - Electrochemical gas sensor ultrasonic welding tool

Info

Publication number: CN211840752U
Application number: CN202020215096.4U
Authority: CN
Inventors: 杨双双; 马俊平; 张东旭
Original assignee: Nanjing Aut Eq Science & Technology Co ltd
Current assignee: Nanjing Aut Eq Science & Technology Co ltd
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2020-11-03
Anticipated expiration: 2030-02-27

Abstract

The utility model discloses an electrochemical gas sensor ultrasonic welding tool, which comprises a base plate, a placing mechanism and a pressing mechanism; the placing mechanism comprises a fixed seat and a placing table; hold-down mechanism, including the ultrasonic bonding tool that sets gradually, place the platform, the slider, a slide rail, the piston rod, first gangbar, second gangbar and action bars, the bottom at the ultrasonic bonding tool is fixed to the slider, the slide rail is fixed on the bed plate, the piston rod is fixed on the ultrasonic bonding tool towards the one end of ultrasonic bonding tool, the one end and the first gangbar of piston rod towards first gangbar are articulated, the one end and the second gangbar of first gangbar towards the second gangbar are articulated, the one end of second gangbar articulates on the bed plate, the action bars is fixed in the one end of the second gangbar of keeping away from second gangbar and bed plate pin joint, be equipped with the recess on ultrasonic bonding tool and the fixing base jointly. The ultrasonic welding device is mainly used for limiting the shape of the welding rib and the position of the sensor during ultrasonic welding, so that the condition of swelling and deformation of the welding rib is avoided.

Description

Electrochemical gas sensor ultrasonic welding tool

Technical Field

The utility model relates to an electrochemistry gas sensor field, concretely relates to electrochemistry gas sensor ultrasonic bonding frock.

Background

With the attention of people on environmental protection and life health, higher requirements are put forward on the monitoring of various toxic and harmful gases. The electrochemical gas sensor has the characteristics of good sensitivity and high detection response speed to toxic and harmful gases, so that the electrochemical gas sensor is widely applied to gas detection equipment.

A typical electrochemical gas sensor includes a working electrode, a counter electrode, and a reference electrode, with the working electrode and the counter electrode being electrically connected by an electrolyte. The electrolyte is typically a corrosive acid, base or salt solution, and therefore it is necessary to seal the sensor upper and lower housings to provide a reservoir for the electrolyte. The sealing mode of the sensor shell mainly comprises threads, sealant and ultrasonic welding, and the ultrasonic welding packaging has the advantages of high connection strength, attractive appearance, time saving and no influence on the performance of the sensor, so that the most common packaging mode of the electrochemical gas sensor is formed.

However, when ultrasonic welding is adopted, because the welding rib is arranged between the lower shell and the upper cover of the sensor, when the welding rib is melted under the action of ultrasonic waves, the opening of the lower shell is easy to melt and expand and deform.

Disclosure of Invention

In order to overcome not enough among the prior art, the utility model provides an electrochemistry gas sensor ultrasonic bonding frock, it is mainly when ultrasonic bonding, carries on spacingly to the sensor position, avoids producing the condition that the shell opening part melts to expand and warp down.

In order to achieve the purpose, the ultrasonic welding tool for the electrochemical gas sensor comprises a base plate, wherein a placing mechanism and a pressing mechanism are further arranged on the base plate; the placing mechanism comprises a fixed seat fixed on the base plate and a placing table fixed on the base plate; the pressing mechanism comprises an ultrasonic welding head, a sliding block, a sliding rail, a piston rod, a first linkage rod, a second linkage rod and an operating rod which are arranged in sequence, the sliding block is fixed at the bottom of the ultrasonic welding head, the sliding rail is fixed on the base plate, the sliding block is arranged in the sliding rail in a relatively sliding manner, the piston rod is fixed on the ultrasonic bonding tool towards the one end of ultrasonic bonding tool, the piston rod is articulated with first gangbar towards the one end of first gangbar, first gangbar articulates the middle part position at the second gangbar towards the one end of second gangbar, the second gangbar articulates on the bed plate towards the one end of bed plate, the action bars is fixed in the one end of the second gangbar of keeping away from second gangbar and bed plate pin joint, be equipped with the recess jointly on ultrasonic bonding tool and the fixing base, the ultrasonic bonding tool is in directly over placing the platform to the fixing base removal and with the fixed bolster after, the recess is in.

Further, the fixing seat is fixed on the base plate through welding or bolt connection.

Further, the placing table is fixed on the base plate through bolts.

Further, the slide rail is fixed on the base plate through a bolt.

Further, the stroke of the piston rod is larger than the inner diameter of the groove.

Furthermore, a lantern ring is fixed on the base plate, the lantern ring is sleeved on the outer side of the piston rod, and the outer wall of the piston rod is arranged in the inner wall of the lantern ring in a relatively sliding mode along the axis of the lantern ring.

Furthermore, the outer side of the piston rod, which faces one end of the ultrasonic welding head, is in threaded connection with a nut, the ultrasonic welding head is welded with a threaded column, and the nut is simultaneously in threaded connection with the threaded column and the piston rod.

Has the advantages that: hold-down mechanism compresses tightly with placement mechanism, and the inner wall of recess is arranged in placing the sensor of treating processing, and the welding muscle that melts is in the recess, because the recess is spacing, and the welding muscle that melts can not produce the swelling condition.

Drawings

The invention will be further described and illustrated with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of the whole of the present embodiment;

FIG. 2 is a sectional view taken at A-A in FIG. 1;

fig. 3 is a schematic structural view of the connection relationship of the piston rod and the ultrasonic horn.

Reference numerals: 1. a base plate; 2. a fixed seat; 3. a placing table; 4. an ultrasonic horn; 5. a slider; 6. a slide rail; 7. a groove; 8. a piston rod; 9. a first linkage rod; 10. a second linkage rod; 11. an operating lever; 12. a collar; 13. a nut; 14. a threaded post.

Detailed Description

The technical solution of the present invention will be more clearly and completely explained by the description of the preferred embodiments of the present invention with reference to the accompanying drawings.

The utility model provides an electrochemistry gas sensor ultrasonic welding frock, includes bed plate 1, still is equipped with placement machine and hold-down mechanism on the bed plate 1.

The placing mechanism comprises a fixed seat 2 fixed on a base plate 1 in a welding or bolt connection mode, and a placing table 3 fixed on the base plate 1, wherein the placing table 3 is used for placing a sensor to be subjected to ultrasonic welding. The placing table 3 is fixed on the base plate 1 through bolts, so that the placing table 3 can be conveniently disassembled and assembled from the base plate 1.

As shown in fig. 1 and 2, the pressing mechanism includes an ultrasonic welding head 4, a slider 5 is fixed to the bottom of the ultrasonic welding head 4, a slide rail 6 is fixed to the base plate 1 through a bolt, and the ultrasonic welding head 4 can slide along the length direction of the slide rail 6 through the slider 5. Be equipped with a recess 7 on ultrasonic bonding tool 4 and fixing base jointly, ultrasonic bonding tool 4 supports tight back to the fixing base direction removal and with the fixing base, and two recesses 7 on ultrasonic bonding tool 4 and the fixing base are pieced together a whole to two are pieced together holistic recesses 7 and are in and place platform 3 directly over, and the sensor of treating processing is put into from recess 7's top and is placed on the platform 3.

As shown in figure 1, during ultrasonic welding, the groove 7 wraps the upper cover and the lower shell of the sensor, and the shape of the groove 7 limits the lower shell of the sensor, so that when a welding rib between the upper cover and the lower shell is subjected to melting welding under the action of ultrasonic waves, the opening of the lower shell cannot generate melting expansion deformation.

As shown in fig. 1, the pressing mechanism further includes a piston rod 8, a first linkage rod 9, a second linkage rod 10 and an operating rod 11, the left end of the piston rod 8 is fixed to the right end of the ultrasonic welding head 4, the right ends of the first linkage rod 9 and the piston rod 8 are hinged to the first linkage rod 9, the right end of the first linkage rod 9 is hinged to the middle of the second linkage rod 10, the bottom end of the second linkage rod 10 is hinged to the base plate 1, and the operating rod 11 is fixed to the upper end of the second linkage rod 10.

As shown in fig. 1, when the operating rod 11 is pressed down, the operating rod 11 rotates counterclockwise along the hinge point of the second linkage rod 10 and the base plate 1, the second linkage rod 10 pushes the first linkage rod 9 to move leftward, and the first linkage rod 9 makes the piston rod 8 push the ultrasonic welding head 4 to slide leftward along the slide rod, and forms a clamping force with the fixed seat 2 and applies the clamping force to the sensor housing. Conversely, when the operating lever 11 is lifted, the ultrasonic horn 4 and the holder are separated from each other. The left-right sliding stroke of the piston rod 8 is far larger than the outer diameter of the groove 7, so that the ultrasonic welding head 4 can be far away from the fixed seat as far as possible, and an operator can take a sensor product conveniently without being scalded by the ultrasonic welding head 4.

As shown in fig. 1, a collar 12 is fixed on the base plate 1, the collar 12 is sleeved on the outer side of the piston rod 8, the collar 12 is arranged at the right end position of the piston rod 8, and the outer wall of the piston rod 8 is arranged in the inner wall of the collar 12 in a relatively sliding manner along the axis of the collar 12. The collar 12 may guide the sliding movement of the piston rod 8.

As shown in fig. 3, the left end of the piston rod 8 and the right end of the ultrasonic welding head 4 are fixed by bolts, specifically, a threaded column 14 is welded at the right end of the ultrasonic welding head 4, a nut 13 is connected to the outer side of the left end of the piston rod 8 in a threaded manner, and the nut 13 is simultaneously connected to the outer sides of the threaded column 14 and the piston rod 8 in a threaded manner, so that the piston rod 8 and the threaded column 14 are fixed to each other, and the piston rod 8 and the ultrasonic welding head 4 are also fixed to each other.

The above detailed description merely describes the preferred embodiments of the present invention and does not limit the scope of the present invention. Without departing from the design concept and spirit scope of the present invention, the ordinary skilled in the art should belong to the protection scope of the present invention according to the present invention provides the text description and drawings to the various modifications, replacements and improvements made by the technical solution of the present invention. The scope of protection of the present invention is determined by the claims.

Claims

1. The ultrasonic welding tool for the electrochemical gas sensor is characterized by comprising a base plate (1), wherein a placing mechanism and a pressing mechanism are further arranged on the base plate (1);

the placing mechanism comprises a fixed seat (2) fixed on a base plate (1) and a placing table (3) fixed on the base plate (1);

the pressing mechanism comprises an ultrasonic welding head (4), a sliding block (5), a sliding rail (6), a piston rod (8), a first linkage rod (9), a second linkage rod (10) and an operating rod (11) which are sequentially arranged, wherein the sliding block (5) is fixed at the bottom of the ultrasonic welding head (4), the sliding rail (6) is fixed on a base plate (1), the sliding block (5) is arranged in the sliding rail (6) in a relative sliding manner, one end of the piston rod (8) facing the ultrasonic welding head (4) is fixed on the ultrasonic welding head (4), one end of the piston rod (8) facing the first linkage rod (9) is hinged with the first linkage rod (9), one end of the first linkage rod (9) facing the second linkage rod (10) is hinged at the middle position of the second linkage rod (10), and one end of the second linkage rod (10) facing the base plate (1) is hinged on the base plate (1), the utility model discloses a base plate, including base plate (1), action bars (11), ultrasonic bonding tool (4) and fixing base (2), ultrasonic bonding tool (4) are equipped with recess (7) on the base plate (2), the action bars (11) are fixed in the one end of keeping away from second linkage pole (10) and base plate (1) pin joint's second linkage pole (10), ultrasonic bonding tool (4) remove to fixing base (2) and with fixing base (2) contact back, recess (7) are in and place platform (3) directly over.

2. The ultrasonic welding tool for the electrochemical gas sensor according to claim 1, wherein the fixing seat (2) is fixed on the base plate (1) through welding or bolting.

3. The electrochemical gas sensor ultrasonic welding tool according to claim 1, wherein the placing table (3) is fixed on the base plate (1) through bolts.

4. The electrochemical gas sensor ultrasonic welding tool according to claim 1, wherein the slide rail (6) is fixed on the base plate (1) through bolts.

5. The electrochemical gas sensor ultrasonic welding tool according to claim 1, wherein the stroke of the piston rod (8) is larger than the inner diameter of the groove (7).

6. The electrochemical gas sensor ultrasonic welding tool according to claim 1, wherein a collar (12) is fixed on the base plate (1), the collar (12) is sleeved on the outer side of the piston rod (8), and the outer wall of the piston rod (8) is arranged in the inner wall of the collar (12) in a manner of relative sliding along the axis of the collar (12).

7. The ultrasonic welding tool for the electrochemical gas sensor according to claim 1, wherein a nut (13) is connected to the outer side of one end, facing the ultrasonic welding head (4), of the piston rod (8) in a threaded manner, a threaded column (14) is welded to the ultrasonic welding head (4), and the nut (13) is simultaneously connected to the threaded column (14) and the piston rod (8) in a threaded manner.