Automatic assembly tool for installing O-shaped ring in air conditioner inspection valve nut

Abstract

The utility model discloses an air conditioner inspection valve nut built-in O-shaped ring automatic assembly tool which comprises a punch and a sleeve, the lower end of the punch is inserted into the upper end of the sleeve in a sliding mode, an extrusion shaping groove is formed in the center of the sleeve, and an O-shaped ring inlet is formed in the outer side of the sleeve. The O-shaped ring is extruded, deformed and pushed into a nut inner hole groove in a push rod mode, the product quality requirement is met, meanwhile, production efficiency is improved, the hand labor intensity of workers is reduced, the production period is shortened, and the cost advantage of enterprises is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of O-ring assembly, in particular to an automatic assembly tool for an O-ring installed in a nut of an air-conditioning inspection valve. Background Art

[0002] At present, the air-conditioning inspection valve nut manufacturing site uses manual installation of O-rings. Employees need to flatten the O-ring and put it on the bottom of the inner thread of the nut, and then use a straight rod to repeatedly press the O-ring up and down until the O-ring is completely entered into the groove. The bottom diameter of the thread is smaller than the outer diameter of the O-ring. Repeated pressing of the O-ring during assembly is likely to scratch the outer wall, resulting in slow production efficiency and high manual labor intensity. Utility Model Content

[0003] The utility model aims to provide an automatic assembly tool for an O-ring installed in a nut of an air-conditioning inspection valve, so as to solve the problems raised in the above-mentioned background technology.

[0004] The technical solution adopted by the utility model is as follows:

[0005] An automatic assembly tool for an O-ring installed in a nut of an air-conditioning inspection valve comprises a punch and a sleeve. The lower end of the punch is slidably inserted into the upper end of the sleeve. An extrusion shaping groove is provided at the center of the sleeve, and an O-ring inlet is provided on the outer side of the sleeve.

[0006] Preferably, the punch comprises a punch slide rod, a punch core rod is inserted into the punch slide rod, a sliding sleeve is slidably provided on the outer side of the upper end of the punch slide rod, and a fixing block is sleeved on the upper end of the punch slide rod.

[0007] Preferably, the lower end of the punch core rod extends out of the lower end of the punch slide rod, and the upper end of the punch core rod and the upper end of the punch slide rod, as well as the upper end of the punch slide rod and the upper end of the fixing block are all welded.

[0008] Preferably, a punch rear cover is provided on the top of the sliding sleeve, and a spring is provided between the fixing block and the punch rear cover.

[0009] Preferably, positioning grooves are provided on both sides of the sliding sleeve, and positioning blocks are provided at both ends of the top of the sleeve, and the positioning blocks cooperate with their corresponding positioning grooves.

[0010] Preferably, the extrusion shaping groove adopts a structure in which the inner diameter gradually decreases from top to bottom.

[0011] Preferably, the punch slide rod adopts a waist-shaped circular structure, and a barrel groove corresponding to it is opened at the upper end of the sleeve.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] In the utility model, a push rod is used to extrude and deform the O-ring and push it into the inner hole groove of the nut, thereby meeting the product quality requirements while improving production efficiency, reducing the labor intensity of employees' hands, shortening the production cycle, and improving the cost advantage of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a cross-sectional view of the punch of the utility model;

[0016] Figure 3 It is a cross-sectional view of the sleeve of the utility model;

[0017] In the figure: 1. punch; 11. punch slide rod; 12. punch core rod; 13. fixing block; 14. sliding sleeve; 15. punch back cover; 16. spring; 17. positioning groove; 2. sleeve; 21. extrusion shaping groove; 22. O-ring inlet; 23. positioning block. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] Example:

[0020] An automatic assembly tool for installing an O-ring in a nut of an air conditioner inspection valve, such as Figure 1-3 As shown, it includes a punch 1 and a sleeve 2. The lower end of the punch 1 is slidably inserted into the upper end of the sleeve 2. An extrusion shaping groove 21 is opened at the center of the sleeve 2, and an O-ring inlet 22 is opened on the outer side of the sleeve 2.

[0021] In a possible embodiment, the punch 1 includes a punch slide 11, a punch core rod 12 is inserted into the punch slide 11, a sliding sleeve 14 is slidably provided on the outer side of the upper end of the punch slide 11, and a fixing block 13 is sleeved on the upper end of the punch slide 11.

[0022] In a possible implementation, the lower end of the punch core rod 12 extends out of the lower end of the punch slide bar 11 , and the upper end of the punch core rod 12 and the upper end of the punch slide bar 11 , and the upper end of the punch slide bar 11 and the upper end of the fixing block 13 are all welded.

[0023] In a possible implementation manner, a punch back cover 15 is provided on the top of the sliding sleeve 14 , and a spring 16 is provided between the fixing block 13 and the punch back cover 15 .

[0024] In a possible implementation manner, positioning grooves 17 are provided on both sides of the sliding sleeve 14 , and positioning blocks 23 are provided at both ends of the top of the sleeve 2 , and the positioning blocks 23 match with their corresponding positioning grooves 17 .

[0025] In a possible implementation manner, the extrusion shaping groove 21 adopts a structure in which the inner diameter gradually decreases from top to bottom.

[0026] In a possible implementation manner, the punch slide rod 11 adopts a waist-shaped circular structure, and a barrel groove corresponding thereto is opened at the upper end of the sleeve 2.

[0027] In a possible implementation, when the sleeve tooling is fixed, the punch back cover 15 of the punch 1 is connected to the upper and lower stroke pneumatic cylinders to meet the downward thrust, ensuring that the punch 1 has the thrust to push the O-ring into the sleeve 2 to extrude it into an arch bridge shape, and then push it into the inner groove of the nut product.

[0028] In a possible implementation manner, the nut product is disposed at the lower end of the sleeve 2 , and the through hole of the sleeve 2 coincides with the center line of the extrusion molding groove 21 .

[0029] In a possible implementation, when the punch 1 and the punch core rod 12 push the O-ring into the inner groove of the nut product, the punch core rod 12 penetrates into the inner groove of the nut product, and the end face of the punch slide rod 11 presses the O-ring as a whole into the inner groove of the nut product.

[0030] In a possible implementation, after the O-ring is integrally pressed into the inner groove of the nut product, the punch returns upward, and the punch slide rod 11 , the punch core rod 12 , and the fixed block 13 simultaneously move upward to squeeze the spring 16 .

[0031] In a possible implementation, the tail end of the punch back cover 15 is connected to the equipment pneumatic cylinder to realize the movement of the punch 1, the sleeve 2 is fixed to the equipment, the O-ring is placed in the O-ring inlet 22 of the sleeve 2, and the punch 1 pushes the O-ring forward into the extrusion molding groove 21. The O-ring is extruded by the punch 1 to form an arch bridge shape and is pushed into the inner groove of the nut product.

[0032] By adopting the above technical solution:

[0033] The O-ring is squeezed and deformed by a push rod and pushed into the inner groove of the nut. This not only meets product quality requirements, but also improves production efficiency, reduces employee manual labor intensity, shortens production cycles, and improves the company's cost advantage.

[0034] It is suitable for installing O-rings inside nut products. After improvement, the operation is convenient and quick, the labor intensity of the operator's watch is reduced, and the production efficiency is improved. It solves the problems of low production efficiency, inconvenient installation and heavy manual labor of the operator in the traditional hand-pressing installation of O-rings.

[0035] Working principle, see Figure 1When in use, put the O-ring into the sleeve 2 from the O-ring entrance 22, and push the punch 1 downward to extrude the O-ring into a symmetrical double arc shape through the extrusion shaping groove 21 and push it into the nut product groove. The end face of the punch slide rod 11 then presses the other two ends of the O-ring into the groove, and finally the O-ring is installed as a whole.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic assembly tool for an O-ring installed in a nut of an air-conditioning inspection valve, characterized in that: It comprises a punch (1) and a sleeve (2), wherein the lower end of the punch (1) is slidably inserted into the upper end of the sleeve (2), an extrusion shaping groove (21) is provided at the center of the sleeve (2), and an O-ring inlet (22) is provided on the outer side of the sleeve (2).

2. The automatic assembly tool for an O-ring installed in a nut of an air-conditioning inspection valve as claimed in claim 1, characterized in that: The punch (1) comprises a punch slide bar (11), a punch core rod (12) is inserted into the punch slide bar (11), a sliding sleeve (14) is slidably provided on the outer side of the upper end of the punch slide bar (11), and a fixing block (13) is sleeved on the upper end of the punch slide bar (11).

3. The automatic assembly tool for installing an O-ring in a nut of an air-conditioning inspection valve as claimed in claim 2, characterized in that: The lower end of the punch core rod (12) extends out of the lower end of the punch slide bar (11), and the upper end of the punch core rod (12) and the upper end of the punch slide bar (11), as well as the upper end of the punch slide bar (11) and the upper end of the fixing block (13) are all welded.

4. The automatic assembly tool for installing an O-ring in a nut of an air-conditioning inspection valve as claimed in claim 2, characterized in that: A punch rear cover (15) is provided on the top of the sliding sleeve (14), and a spring (16) is provided between the fixing block (13) and the punch rear cover (15).

5. The automatic assembly tool for installing an O-ring in a nut of an air-conditioning inspection valve as claimed in claim 2, characterized in that: Positioning grooves (17) are provided on both sides of the sliding sleeve (14), and positioning blocks (23) are provided at both ends of the top of the sleeve (2), and the positioning blocks (23) are matched with the corresponding positioning grooves (17).

6. The automatic assembly tool for installing an O-ring in a nut of an air-conditioning inspection valve as claimed in claim 1, characterized in that: The extrusion shaping groove (21) adopts a structure in which the inner diameter gradually decreases from top to bottom.

7. The automatic assembly tool for installing an O-ring in a nut of an air-conditioning inspection valve as claimed in claim 2, characterized in that: The punch slide bar (11) adopts a waist-shaped circular structure, and a barrel groove corresponding to it is opened at the upper end of the sleeve (2).

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