Vertical clamping and positioning device for welding assembly

Abstract

The utility model discloses a vertical clamping and positioning device for a welding assembly. Comprising a bottom plate, a positioning surface A, a vertical body, a positioning surface B, a pressing mechanism, a positioning arc, a rotating mechanism and an adjusting mechanism, and a U-shaped groove facilitating clamping of machine tool equipment is formed in the bottom plate; the vertical body is vertically fixed on the bottom plate and used for supporting or installing all mechanisms and parts, the front face of the vertical body is sequentially provided with a positioning face B, a positioning arc and a movable clamping body formed by the positioning arc and a pressing mechanism from bottom to top, the vertical body is used for conducting main clamping positioning on an assembly channel, and the positioning face A is fixed on the bottom plate and used for conducting coarse positioning on the lower end of an assembly; the positioning face B is used for conducting coarse positioning on the side face of the assembly, installing a turnover mechanism composed of the rotating structure and the adjusting mechanism on the upper side of the vertical body and conducting auxiliary clamping positioning on an assembly channel. The clamp can effectively guarantee vertical clamping, is convenient to operate, high in machining precision and stable and reliable in machining process, meets the machining quality requirement, and improves the machining qualification rate by three times at a time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of machining, specifically relates to a vertical clamping and positioning device for welding assembly. BACKGROUND

[0002] The welding assembly is very popular in the application of aviation and aerospace fuel-oil heat exchanger, and the batch production is increasing year by year with the number of heat exchangers. The assembly is welded by a head and a channel, and important components such as valves need to be installed in the channel, which puts forward very high requirements on the machining precision of the channel. The channel wall is thin, and first machining the channel and then welding is first tried, but because the welding back penetration is large, it seriously affects the flow resistance in the channel and is abandoned. At present, the welding assembly always adopts the machining mode of welding first and then machining, but the channel is long and the perpendicularity requirement of the channel relative to the head is high, the channel is easily deformed in the machining process, and the qualified rate of the welding assembly is only 32%, which seriously affects the machining efficiency and machining quality of the heat exchanger. SUMMARY

[0003] The utility model discloses the purpose that: provide a vertical clamping and positioning device for welding assembly.

[0004] The technical scheme of the utility model is: a vertical clamping and positioning device for welding assembly, including bottom plate, locating surface A, vertical body, locating surface B, pressure mechanism, locating arc, rotating mechanism, adjusting mechanism, the U-shaped groove that is equipped with the bottom plate for the convenience of machine tool equipment clamping;The vertical body is vertically fixed on the bottom plate, and is used for supporting or installing various mechanisms and components, and the front surface is sequentially provided with locating surface B and locating arc from below to above, the movable clamping body formed by locating arc and pressure mechanism is used for the main clamping positioning of assembly channel, locating surface A is fixed on the bottom plate and is used for the rough positioning of the lower end of the assembly;Locating surface B is used for the rough positioning of the side surface of the assembly, and the turnover mechanism composed of rotating structure and adjusting mechanism is installed on the upside of the vertical body and is used for the auxiliary clamping positioning of assembly channel.

[0005] In the foregoing vertical clamping and positioning device for welding assembly, the vertical body includes a vertical plate and two rib plates, and the two rib plates are arranged and welded on the back of the vertical plate to strengthen the overall rigidity of the vertical body.

[0006] The clamping mechanism comprises a hinge pull rod, an arc-shaped pressing plate, a rotating beam, a fixed rod and a pin shaft, the hinge pull rod comprises a movable rod and a nut, U-shaped grooves are formed at the two ends of the rotating beam, the left end is connected to the hinge pull rod in a pressing manner, the right end is connected to the fixed rod in a movable manner, and the fixed rod is fixed to the side surface of the vertical body; the arc-shaped pressing plate is installed on the central through groove of the rotating beam through the pin shaft and can be flexibly rotated left and right in the central through groove, the size of the arc surface is consistent with the positioning arc, and the right end of the rotating beam is connected to the fixed rod through the pin shaft; the pin shaft is matched with the positioning arc and the rotating beam in a clearance fit mode;

[0007] The rotating mechanism comprises a manual nut, a rotating support and a rotating shaft, the rotating support is in a V-shaped structure, the open end of the V-shaped structure is installed on the upper end step of the vertical body through the rotating shaft, the manual nut is installed on the small end of the V-shaped structure and is used for auxiliary clamping of the assembly, and the rotating shaft is provided with an M5 thread at the shaft end and is connected to the threaded hole in the side surface of the top end of the vertical body, and the shaft body is provided with a Φ8 guide section and is matched with the open end hole of the rotating support in a clearance fit mode.

[0008] The rotating mechanism can rotate around the vertical body by 90 degrees.

[0009] The adjusting mechanism comprises an adjusting nut, a supporting pressing plate and a sliding support, the central threaded hole of the supporting pressing plate is fixed above the open groove at the top end of the vertical body, so that the guide groove of the sliding support is formed, the adjusting nut is used for adjusting the sliding support forward and backward through the threaded hole in the center of the supporting pressing plate, and then the assembly channel is auxiliary positioned.

[0010] The vertical clamping and positioning device can be used on milling machines, drilling machines and machining centers, the operation process is simple and practical, the machining process is stable and reliable, and the device structure is universal;

[0011] The vertical clamping and positioning device is provided with main positioning and auxiliary positioning, can effectively guarantee the perpendicularity and machining precision of products, guarantees product quality, and improves the qualified rate by 3 times at a time. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a structural schematic view of a vertical clamping and positioning device for a welding assembly.

[0013] Fig. 2 It is a sectional view of a welding assembly of a product.

[0014] Fig. 3 It is a sectional view of an adjusting mechanism of a vertical clamping and positioning device for a welding assembly. DETAILED DESCRIPTION

[0015] The utility model will be further described below in combination with the drawings and examples, but not as the basis for limiting the utility model.

[0016] Embodiment 1. A vertical clamping positioning device of welding assembly, see Figs. 1-3 , including bottom plate 1, positioning surface 2, vertical body 3, positioning surface 4, compression mechanism 5, positioning arc 6, rotating mechanism 7, adjusting mechanism 8 etc.

[0017] As Fig. 1 Bottom plate 1 is equipped with U-shaped groove for the convenience of machine tool equipment clamping, vertical body 3 is vertically fixed on bottom plate 1, is used for supporting or installing each mechanism and component, and the front surface is sequentially provided with positioning surface 4 and positioning arc 6 from below to above, the movable clamping body formed by positioning arc 6 and compression mechanism 5 is used for the main clamping positioning of assembly channel, positioning surface 2 is fixed on bottom plate 1 and is used for the rough positioning of assembly lower end, the turnover mechanism composed of rotating structure 7 and adjusting mechanism 8 is installed on the upside of vertical body and is used for the auxiliary clamping positioning of assembly channel.

[0018] The vertical clamping positioning device, the vertical body 3 includes a vertical plate 3-1 and a rib plate 3-2, the two rib plates 3-2 are arranged and welded on the back of the vertical plate, for strengthening the overall rigidity of the vertical body 3;

[0019] The vertical clamping positioning device, the clamping mechanism 5 includes a hinge pull rod 5-1, an arc-shaped pressing plate 5-2, a rotating beam 5-3, a fixed rod 5-4, and a pin shaft 5-5, characterized in that the hinge pull rod 5-1 includes a movable rod and a nut, the rotating beam 5-3 has a U-shaped slot at both ends, the left end forms a compression connection with the hinge pull rod, the right end forms a movable connection with the fixed rod 5-4, and the fixed rod 5-4 is fixed to the side surface of the vertical body 3;

[0020] The arc-shaped pressing plate 5-2 is installed in the center through slot of the rotating beam 5-3 through the pin shaft 5-5, can be flexibly rotated left and right in the through slot, the arc surface size is consistent with the positioning arc 6, and the right end of the rotating beam 5-3 is connected with the fixed rod 5-4 through the pin shaft 5-5;

[0021] The pin shaft 5-5 is gap-fitted with the positioning arc 6 and the rotating beam 5-3 respectively;

[0022] The vertical clamping positioning device, the rotating mechanism 7 includes a manual nut 7-1, a rotating support 7-2, and a rotating shaft 7-3, the rotating support 7-2 has a V-shaped structure, the open end is installed at the step on the upside of the vertical body through the rotating shaft 7-3, the manual nut 7-1 is installed at the small end, and is used for auxiliary clamping of the assembly;

[0023] The rotating shaft 7-3 of the rotating mechanism 7 is provided with an M5 thread at the shaft end, connected with a thread hole on the side of the top end of the vertical body 3, and the shaft body is provided with a Φ8 guide section, which is in clearance fit with the opening hole of the rotating support 7-2;

[0024] The rotating mechanism 7 can rotate around the vertical body 3 by 90° in front and back directions;

[0025] As Fig. 3 The vertical clamping and positioning device is provided with an adjusting mechanism 8, which comprises an adjusting nut 8-1, a supporting pressing plate 8-2 and a sliding support 8-3. The supporting pressing plate 8-2 is fixed above the opening groove at the top end of the vertical body 3, and is designed with a thread hole at the center, thereby forming a guide groove for the sliding support 8-3. The adjusting nut 8-1 is adjusted in front and back directions through the thread hole at the center of the supporting pressing plate 8-2, thereby assisting in positioning the assembly channel.

Claims

1. A vertical fixture for welding assembly, characterized by, The device comprises a base plate (1), a locating surface A (2), a vertical body (3), a locating surface B (4), a pressing mechanism (5), a locating arc (6), a rotating mechanism (7), and an adjusting mechanism (8). The base plate (1) is provided with a U-shaped groove for conveniently clamping machine tools. The vertical body (3) is vertically fixed on the base plate (1) and is used for supporting or mounting various mechanisms and components. The front surface of the vertical body (3) is sequentially provided with the locating surface B (4) and the locating arc (6) from bottom to top. The locating arc (6) and the movable clamping body formed by the pressing mechanism (5) are used for the main clamping positioning of the assembly channel. The locating surface A (2) is fixed on the base plate (1) and is used for the coarse positioning of the lower end of the assembly. The locating surface B (4) is used for the coarse positioning of the side surface of the assembly. The rotating mechanism (7) and the adjusting mechanism (8) are mounted on the upper side of the vertical body and are used for the auxiliary clamping positioning of the assembly channel.

2. The vertical clamping fixture of claim 1, wherein, The vertical body (3) comprises a vertical plate (3-1) and two rib plates (3-2). The two rib plates (3-2) are arranged and welded on the back of the vertical plate and are used for strengthening the overall rigidity of the vertical body (3).

3. The vertical clamping fixture of claim 1, wherein, The clamping mechanism (5) comprises a hinge pull rod (5-1), an arc-shaped pressing plate (5-2), a rotating beam (5-3), a fixed rod (5-4), and a pin shaft (5-5). The hinge pull rod (5-1) comprises a movable rod and a nut. The rotating beam (5-3) is provided with a U-shaped groove at both ends. The left end forms a pressing connection with the hinge pull rod, and the right end forms a movable connection with the fixed rod (5-4). The fixed rod (5-4) is fixed on the side surface of the vertical body (3). The arc-shaped pressing plate (5-2) is installed on the center through groove of the rotating beam (5-3) through the pin shaft (5-5). It can be flexibly rotated left and right in the center through groove. The arc surface size is consistent with the locating arc (6). The right end of the rotating beam (5-3) is connected with the fixed rod (5-4) through the pin shaft (5-5). The pin shaft (5-5) is gap-fitted with the locating arc (6) and the rotating beam (5-3).

4. The vertical clamping and positioning device according to claim 1, wherein the rotating mechanism (7) comprises a manual nut (7-1), a rotating bracket (7-2), and a rotating shaft (7-3). The rotating bracket (7-2) has a V-shaped structure. The opening end of the V-shaped structure is installed on the upper step of the vertical body through the rotating shaft (7-3). The manual nut (7-1) is installed on the small end of the V-shaped structure and is used for auxiliary clamping of the assembly. The rotating shaft (7-3) is provided with an M5 thread at the shaft end and is connected with the threaded hole on the top side surface of the vertical body (3). The shaft body is provided with a Φ8 guide section and is gap-fitted with the opening end hole of the rotating bracket (7-2).

5. The vertical clamping and positioning device according to claim 4, wherein the rotating mechanism (7) can rotate 90° forward and backward around the vertical body (3).

6. The vertical clamping and positioning device according to claim 1, wherein the adjusting mechanism (8) comprises an adjusting nut (8-1), a supporting plate (8-2) and a sliding bracket (8-3), wherein the supporting plate (8-2) is designed with a threaded hole in the center and is fixed above the open slot at the top end of the vertical body (3) to form a guide slot for the sliding bracket (8-3), and the adjusting nut (8-1) is adjusted forward and backward on the sliding bracket (8-3) through the threaded hole in the center of the supporting plate (8-2), thereby assisting in positioning the assembly channel.

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