Locating and riveting tool for valve element shaft of ventilation valve

Abstract

The utility model relates to the technical field of ventilation equipment processing. The positioning and riveting tool for the valve element shaft of the ventilation valve comprises a base arranged on a workbench and a machine head arranged above the base. A riveting pressing head and a forming core rod are arranged below the machine head, and a riveting base and a lower die are correspondingly arranged on the base. A mounting groove for mounting the lower mold is formed in the top surface of the base, the mounting groove is in an inverted T shape, and the bottom surface of the mounting groove and the bottom surface of the lower mold are arc-shaped surfaces protruding upwards; the mounting groove extends backwards from the front end face of the base, and the lower die is inserted into the mounting groove from front to back. A crowbar is further arranged on the portion, on the front side of the base, of the workbench. The valve core shaft sleeve riveting device is convenient and fast to use, and can improve the efficiency of riveting the valve core shaft sleeve by an operator.

Description

TECHNICAL FIELD

[0001] The utility model relates to ventilation equipment processing technical field, concretely relates to a ventilation valve core shaft positioning riveting frock. BACKGROUND

[0002] The valve core shaft of the ventilation valve is used for being installed on the valve, and the opening and closing of the valve core are adjusted by rotating, so that the components such as ventilation opening and closing, air volume control are realized. Figure 1 The simple installation of the valve core shaft is usually arranged in a few Chinese characters shaped shaft sleeve, and the shaft sleeve is installed on the valve to support the free rotation of the valve core shaft.

[0003] In practice, we found that the lower die is directly formed as the center arch component, and the lower die is usually installed in the installation groove of the base in a direct placement mode to facilitate replacement due to the need for processing shaft sleeves of different sizes of valve core shafts. SUMMARY

[0004] The utility model discloses a ventilation valve core shaft positioning riveting frock convenient to use.

[0005] In order to realize the above-mentioned purpose of the application, the technical scheme adopted by the utility model is as follows: a ventilation valve core shaft positioning riveting frock, comprising a base arranged on a workbench and a machine head arranged above the base.

[0006] The top surface of the base is provided with an installation groove for installing the lower die, and the installation groove is inverted T-shaped, and the bottom surface of the installation groove and the bottom surface of the lower die are both arc surfaces protruding upward.

[0007] The workbench on the front side of the base is further provided with a crowbar, and the middle segment of the crowbar is hinged with the workbench to swing in the upward and downward directions.

[0008] Preferably, the working end of the crowbar is hemispherical and is covered with a rubber sleeve.

[0009] Preferably, the working end of the crowbar is provided with a pry wheel, which is a rubber wheel.

[0010] Preferably, an external hexagonal nut is welded and fixed on the workbench, and a pin is provided on the pry bar. The pin passes through the external hexagonal nut to form a hinge between the pry bar and the workbench.

[0011] Preferably, the section of the crowbar near the operating end is connected to the workbench via a connecting rope.

[0012] The beneficial effects of this utility model are mainly reflected in its ease of use and speed, which improves the efficiency of operators in riveting valve core shafts and bushings. Specifically, because the lower mold and the base are connected by a front-to-back insertion method, this utility model not only facilitates installation, but also the inverted T-shaped structure prevents the lower mold from being pulled out when prying out the workpiece, thus improving stability. The arc-shaped surface design increases the contact area, reduces the pressure per unit area, and extends the service life of the lower mold. During use, the operator holds the workpiece to be processed in one hand and the operating end of the pry bar in the other, and operates the riveting machine by foot pedaling. The workpiece is inserted, the switch is pressed, and the workpiece is pried out and removed at a certain frequency, thus greatly improving efficiency. Attached Figure Description

[0013] Figure 1 A schematic diagram of the valve core shaft sleeve;

[0014] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 3 This is a side view of the crowbar installation diagram;

[0016] Figure 4 This is a schematic diagram of a preferred crowbar. Detailed Implementation

[0017] like Figures 2-4 As shown, a positioning and riveting fixture for a ventilation valve spindle is used for riveting components of the valve spindle; more precisely, it is used for riveting components such as... Figure 1 The bushings shown are riveted together. Figure 2 As shown, this utility model includes a base 2 mounted on a workbench 1 and a machine head 3 mounted above the base 2. A riveting pressure head 4 and a forming core rod 5 are disposed below the machine head 3, and a riveting seat 0 and a lower mold 6 are correspondingly disposed on the base 2. When the machine head presses down, the riveting pressure head and the riveting seat cooperate to complete the riveting of the ear piece edge, while the forming core rod 5 and the lower mold 6 complete the forming of the central arch.

[0018] The utility model discloses a feature lies in, the base 2 top surface is provided with the installation groove for the lower mould 6 installation, the installation groove is inverted T shape, and the bottom surface of installation groove and the bottom surface of lower mould 6 are all the arc surface that projects upwards. The installation groove extends from the front end face of base 2 to rear, and the lower mould 6 is inserted into the installation groove from front to rear. Since the lower mould 6 and the base 2 adopt the mode of inserting from front to rear, not only convenient installation, take out, be favorable to replacement, and inverted T shape structure makes the lower mould 6 when prying out workpiece not be taken out, improve the stability, the design of arc surface can increase the contact area, reduce unit area pressure, can improve the service life of lower mould 6.

[0019] The workbench 1 of base 2 front side still is provided with crowbar 7, and the middle section of crowbar 7 forms the hinge that can swing along the up-down direction with workbench 1. Crowbar 7 is used to pry out workpiece from base 2 after workpiece processing is completed, and one end of crowbar 7 is close to base 2 and constitutes a working end, and the other end constitutes an operating end, when using, hand operating end, swing crowbar 7. Of course, in order to further optimize the performance of crowbar 7, avoid damaging the surface of workpiece when prying, cause scratch, the better practice of the utility model still can be, as shown in Figure 3 The working end of crowbar 7 is semispherical, and rubber sleeve 8 is arranged outside. Figure 4 As shown in The working end of crowbar 7 is provided with a crowbar wheel, and the crowbar wheel is rubber wheel 9.

[0020] In order to facilitate the simple hinge installation of crowbar 7, external hex nut 10 is welded and fixed on workbench 1, pin shaft is arranged on crowbar 7, and the hinge of crowbar 7 and workbench 1 is formed by pin shaft being arranged in external hex nut 10. The size of pin shaft is usually slightly smaller than the inner diameter of external hex nut 10, so as to leave a certain gap and more swing space, and the use is more flexible. Pin shaft can also be arranged longer, and the spacing between external hex nuts 10 is arranged larger, so as to realize certain horizontal swing demand, facilitate installation and taking out. In addition, in order to prevent falling, the section of crowbar 7 close to operating end is connected with workbench 1 through connecting rope 11, and connecting rope 11 can be a common waste soft spring in workshop.

Claims

1. A vent valve spool shaft positioning riveting tool, comprising a base (2) arranged on a workbench (1) and a head (3) arranged above the base (2); a riveting pressure head (4) and a forming core rod (5) are arranged below the head (3), and a riveting seat and a lower die (6) are correspondingly arranged on the base (2); characterized in that An installation groove for the lower die (6) is arranged on the top surface of the base (2), the installation groove is inverted T-shaped, and the bottom surface of the installation groove and the bottom surface of the lower die (6) are both upwardly protruding arc surfaces; the installation groove extends from the front end surface of the base (2) to the rear, and the lower die (6) is inserted into the installation groove from front to rear; A crowbar (7) is further arranged on the workbench (1) of the front side of the base (2), the middle segment of the crowbar (7) and the workbench (1) form a hinge capable of swinging in the up-down direction; one end of the crowbar (7) is close to the base (2) to form a working end, and the other end forms an operating end.

2. The vent valve trim shaft positioning and riveting tooling of claim 1, wherein: The working end of the crowbar (7) is hemispherical, and a rubber sleeve (8) is arranged outside.

3. The vent valve trim shaft positioning and riveting tool of claim 1, wherein: A crowbar wheel is arranged on the working end of the crowbar (7), and the crowbar wheel is a rubber wheel (9).

4. The vent valve trim shaft positioning and riveting tool of claim 1, wherein: An outer hexagonal nut (10) is welded and fixed on the workbench (1), a pin shaft is arranged on the crowbar (7), and the pin shaft is arranged in the outer hexagonal nut (10) to form the hinge of the crowbar (7) and the workbench (1).

5. The vent valve trim shaft positioning and riveting tool of claim 4, wherein: A section close to the operating end of the crowbar (7) is connected with the workbench (1) through a connecting rope (11).

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