CN220612184U - Riveting pliers and combustion chamber riveting set - Google Patents

Abstract

The utility model discloses a riveting clamp and a combustion chamber riveting device, wherein the riveting clamp comprises a clamp seat, a riveting column and an extrusion driving piece, the clamp seat is an n-shaped piece and is provided with a first supporting arm and a second supporting arm, wherein the first supporting arm and the second supporting arm can be plate-shaped pieces which are oppositely arranged, the width of the first supporting arm and the second supporting arm can be 3 cm to 7cm, a jaw is arranged between the lower end of the first supporting arm and the lower end of the second supporting arm, and thus an object to be riveted can extend into the space between the first supporting arm and the second supporting arm through the jaw; the riveting column is arranged at one side of the lower end of the second supporting arm, which is close to the first supporting arm, so that the upper ends of the outer-layer clamping wall and the inner-layer clamping wall extend into the space between the first supporting arm and the second supporting arm through the jaws during riveting, the rivet is aligned between the extrusion head and the riveting column, and then the extrusion head is driven by the extrusion driving piece to move to be close to the riveting column, and the rivet is pressed and riveted on the outer-layer clamping wall or the inner-layer clamping wall.

Description

Riveting pliers and combustion chamber riveting set

Technical Field

The utility model belongs to the field of riveting equipment, and particularly relates to a riveting clamp and a combustion chamber riveting device.

Background

The gas generator is a burner using natural gas as fuel, see fig. 4, the combustion chamber 5 is in a sandwich structure, and is divided into an inner sandwich wall 51 and an outer sandwich wall 52, the upper end between the inner sandwich wall and the outer sandwich wall is annular open, but the lower end of the inner sandwich wall is contracted towards the combustion chamber so that the annular gap between the outer sandwich wall and the inner sandwich wall is gradually increased from top to bottom, and the inner sandwich wall and the outer sandwich wall are required to be riveted.

Disclosure of Invention

In order to achieve the above object, one of the objects of the present utility model is to provide a riveting clamp which has a simple structure, is convenient to use, and has a large riveting force.

In order to achieve the above object, the technical scheme of the present utility model is as follows: a clinching clip comprising:

the pliers seat is n-shaped and is provided with a first supporting arm and a second supporting arm, and a jaw is arranged between the lower ends of the first supporting arm and the second supporting arm;

the riveting column is arranged at one side, close to the first supporting arm, of the lower end of the second supporting arm; and

The extrusion driving piece is arranged at the lower end of the first supporting arm, is provided with an extrusion head positioned in the jaw and aligned with the riveting column, and is used for driving the extrusion head to move close to or far away from the riveting column.

The beneficial effects of the technical scheme are that: when in riveting, the upper ends of the outer-layer chuck wall and the inner-layer chuck wall extend into the space between the first supporting arm and the second supporting arm through the jaws, the rivet is aligned between the extrusion head and the riveting column, and then the extrusion head is driven by the extrusion driving piece to move to be close to the riveting column, and the rivet is pressed and riveted on the outer-layer chuck wall or the inner-layer chuck wall.

In the technical scheme, the extrusion driving piece is a hydraulic cylinder.

The beneficial effects of the technical scheme are that: therefore, the extrusion force of the extrusion driving piece during expansion and contraction is large, and the extrusion rivet can be well deformed to be riveted.

In the above technical scheme, one end of the riveting column, which is far away from the second supporting arm, is an expansion part.

The beneficial effects of the technical scheme are that: this allows the end of the rivet stem to better mate with the extrusion head to extrude the rivet into the rivet.

In the above technical solution, the extrusion driving member is mounted on a side of the first support arm facing away from the second support arm, and the extrusion head of the extrusion driving member penetrates through the first support arm.

The beneficial effects of the technical scheme are that: so that the squeeze drive does not form an obstruction at the jaws.

In the above technical solution, the lower end of the second support arm is inclined to be close to the first support arm.

The beneficial effects of the technical scheme are that: this makes the riveting pliers suitable for riveting the inner sandwich wall.

The second object of the present utility model is to provide a combustion chamber caulking apparatus having a simple structure and high caulking efficiency.

In order to achieve the above object, the technical scheme of the present utility model is as follows: a combustion chamber staking device comprising:

riveting pliers as described above;

the upper end of the rotating piece is provided with a supporting table which horizontally and coaxially rotates, and the supporting table is used for placing a combustion chamber;

the clamping assembly is arranged at the upper end of the supporting table and used for clamping the combustion chamber on the supporting table to be coaxially distributed with the supporting table; and

The moving piece is arranged above the rotating piece, the riveting clamp is arranged at the driving end of the moving piece, and the moving piece is used for driving the riveting clamp to move to rivet the outer-layer double-wall or the inner-layer double-wall of the combustion chamber.

The beneficial effects of the technical scheme are that: the combustion chamber can be arranged on the supporting table of the rotating piece, the clamping assembly clamps the combustion chamber on the supporting table coaxially, and when the supporting table rotates, the combustion chamber is driven to rotate coaxially, and at the moment, rivets on the inner-layer double-wall or the outer-layer double-wall can be riveted by the riveting pliers.

In the above technical solution, the moving member is a three-dimensional moving member.

The beneficial effects of the technical scheme are that: thus, the riveting clamp can move flexibly.

In the technical scheme, the moving part is an XYZ three-axis gantry sliding table.

The beneficial effects of the technical scheme are that: the structure is simple, and the supporting performance is good.

According to the technical scheme, the clamping assembly comprises a plurality of clamps, the clamps are installed at the upper end of the supporting table at intervals along the circumferential direction, the combustion chamber is placed on the supporting table and located between the clamps, and the clamps are used for clamping or loosening the combustion chamber together.

The beneficial effects of the technical scheme are that: the combustion chamber clamping device is simple in structure, so that the plurality of holders can clamp the combustion chamber from the periphery of the combustion chamber in a circumferential direction, the combustion chamber clamping effect is good, and the holders can be coaxially distributed on the supporting table.

In the above technical scheme, the holder comprises a base and a telescopic piece, wherein the telescopic piece is arranged on the base, and the telescopic end of the telescopic piece faces the middle part of the supporting table.

The beneficial effects of the technical scheme are that: such that the plurality of telescoping members telescope or contract simultaneously to clamp or unclamp the combustion chamber.

Drawings

FIG. 1 is a side view of a riveting clamp according to example 1 of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a side view of the riveting clamp according to embodiment 2 of the present utility model;

FIG. 4 is a cross-sectional view of a prior art combustion chamber;

FIG. 5 is a schematic view showing the structure of the riveting device for a combustor outer jacket according to embodiment 3 of the present utility model;

FIG. 6 is a schematic view of the moving part of the riveting device for combustion chamber according to embodiment 3 of the present utility model;

FIG. 7 is a schematic view of the structure of the moving member of the combustion chamber riveting apparatus according to embodiment 3 of the present utility model;

FIG. 8 is a schematic view of a combustion chamber riveting apparatus according to example 3 of the present utility model for riveting a combustion chamber inner wall;

fig. 9 is a schematic view showing a distribution of the clamping assembly on the support table according to embodiment 3 of the present utility model.

In the figure: 1 riveting pliers, 11 pliers bases, 111 first supporting arms, 112 second supporting arms, 113 top bases, 12 riveting columns, 121 expansion parts, 122 grooves, 13 extrusion driving parts, 131 extrusion heads, 132 hydraulic cylinders, 1321 embedding grooves, 133 rod sleeves, 134 ejector rods, 2 rotating parts, 21 supporting tables, 31 grippers, 311 base bodies, 312 telescopic parts, 4 moving parts, 5 combustion chambers, 51 inner-layer double-wall and 52 outer-layer double-wall.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model. The utility model is more particularly described by way of example in the following paragraphs with reference to the drawings. Advantages and features of the utility model will become more apparent from the following description and from the claims. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the utility model.

Example 1

As shown in fig. 1 and 2, the present embodiment provides a clinching clip including a clip base 11, a clinching post 12, and a pressing driver 13.

Specifically, referring to fig. 1 in detail, the jaw 11 is an n-shaped member, and has a first support arm 111 and a second support arm 112, where the first support arm 111 and the second support arm 112 may be plate-shaped members disposed opposite to each other, and may have a width of 3-7cm, and a jaw is disposed between the lower ends of the first support arm 111 and the second support arm 112, so that an object to be riveted may extend between the first support arm and the second support arm through the jaw; the riveting column 12 is disposed at one side of the lower end of the second support arm 112 near the first support arm 111, and the manner of disposing the riveting column on the second support arm may be welding or embedding (a blind hole facing the first support arm is disposed at a position corresponding to the lower end of the second support arm, and the riveting column is far away from the first support arm and is embedded in the blind hole, wherein the bottom wall of the blind hole abuts against the riveting column, so as to bear force on the blind hole in the riveting direction); the extrusion driving member 13 is disposed at the lower end of the first support arm 111, and has an extrusion head 131 disposed in the jaw, the extrusion head is aligned with the riveting column 12, the extrusion driving member 13 is configured to drive the extrusion head 131 thereof to move closer to or farther away from the riveting column 12, wherein the extrusion driving member 13 may drive the extrusion head to move closer to or farther away from the riveting column, specifically, an object to be riveted is disposed in the jaw, and a rivet on the object to be riveted is disposed between the extrusion head and the riveting column, at which time the extrusion driving member drives the extrusion head to move closer to the riveting column, at which time the extrusion head and the riveting column jointly extrude the rivet to deform to rivet the object to be riveted.

Specifically, the article to be riveted comprises two elements to be riveted, and the two elements to be riveted are pre-connected through rivets, namely the two elements to be riveted are pre-assembled with rivets, but the rivets are not extruded and deformed yet, and at the moment, the rivets have certain connecting rigidity to the two elements to be riveted, so that the two elements to be riveted are not easy to loosen.

When the extrusion driving piece is installed on the first supporting arm, the extrusion driving piece is installed on one side, far away from the second supporting arm, of the first supporting arm, and only the telescopic end (namely the extrusion head) of the extrusion driving piece penetrates through the first supporting arm and is in an aligned state with the riveting column.

When the extrusion driving piece and the riveting column jointly clamp and extrude the rivet to deform, the riveting column and the extrusion driving piece are subjected to larger reverse acting force, so that the structural strength of the first supporting arm and the structural strength of the second supporting arm are required to be high, the pliers seat further comprises a top seat, the upper ends of the first supporting arm and the second supporting arm are both connected with two sides of the top seat (the connection can be welded, but is more preferably integrally formed), the top seat and the connection part between the first supporting arm and the second supporting arm and the top seat also need to have higher structural strength, the structural strength of the whole pliers seat is ensured, the whole pliers seat cannot deform when the extrusion driving piece extrudes the rivet to deform, but the thickness and the width of the first supporting arm, the thickness and the width of the second supporting arm are smaller and better on the premise that the pliers seat is not easy to deform, so that the volume of the pliers seat is relatively reduced, and the riveting of different objects can be met.

Referring to fig. 4 in detail, the member to be riveted in this embodiment is an outer wall of an interlayer of a combustion chamber, and the combustion chamber is formed by sequentially riveting a plurality of link plates, and the structure of the combustion chamber belongs to the prior art and is not described herein.

Optionally, the extrusion driving member 13 may be a hydraulic telescopic member, specifically may be a hydraulic cylinder, and because the volume shrinkage rate of the liquid is negligible when the liquid is extruded, the moment is large when the liquid is extruded, and the rivet can be smoothly extruded to deform, and the extrusion driving member may be bolted to the lower end of the first support arm (at this time, a plurality of screw holes are concavely formed in a side, far away from the second support arm, of the lower end of the first support arm, and a structure similar to a flange ring is provided on the extrusion driving member, and the flange ring is aligned with the plurality of screw holes and is connected through bolts).

The end part of the extrusion head of the extrusion driving piece is in a frustum shape, and the thin end of the extrusion head faces the riveting column, so that the acting force applied on the rivet is strong, and the end part of the rivet can be extruded more easily to deform.

In the above-mentioned technical solution, the end of the riveting column 12 away from the second supporting arm 112 is an enlarged portion 121, so that the end of the riveting column can better cooperate with the extrusion head to extrude the rivet to be riveted.

In the above technical solution, the pressing driving member 13 is mounted on a side of the first supporting arm 111 facing away from the second supporting arm 112, and the pressing head 131 thereof penetrates through the first supporting arm 111, so that the pressing driving member does not form a blockage at the jaw.

In detail, referring to fig. 2, a groove 122 is concavely formed in the middle of the enlarged portion near one end of the first support arm, and the groove may be used to abut against the big end of the rivet (the big end of the rivet extends into the groove).

The expansion part can also be in a frustum shape, and the thin end of the expansion part faces the first supporting arm.

The riveting pliers provided by the embodiment are suitable for riveting the outer-layer chuck wall, and when the riveting pliers are used, the first supporting arm is positioned outside the combustion chamber, and the second supporting arm stretches into between the outer-layer chuck wall and the inner-layer chuck wall.

For example, if the width of the annular outlet of the clamping cavity of a certain combustion chamber is only 43mm, the rivet is positioned in the deep part of the inner cavity and is far away from the outlet (350 mm), the caliper needs to be of a slender cantilever structure, the rivet is made of a high-temperature alloy material, the required riveting pressure is about 2-3 tons, and the strength of the slender caliper needs to be tested more so that the caliper seat meets a certain width requirement to ensure the larger bending deformation resistance of the caliper seat.

Of course, the extruded driving piece may also include a hydraulic cylinder, a push rod and a rod sleeve, where the rod sleeve has three sections of expanded diameters in the axial direction, the thickest end is sleeved (interference sleeved) with one end of the hydraulic cylinder, which has a telescopic rod, and the push rod passes through the thin end of the cylinder sleeve and can be slidably connected with respect to the cylinder sleeve, the diameter of the push rod is equivalent to the inner diameter of the thin end of the cylinder sleeve, so that coaxiality of the push rod during sliding can be ensured, in addition, one end of the push rod, which is close to the hydraulic cylinder, is provided with an outward flange, the diameter of the outward flange is equivalent to the inner diameter of the middle section of the rod sleeve, which can further ensure coaxiality of the push rod with respect to the rod sleeve, one end of the push rod, which is close to the hydraulic cylinder, can be connected with the telescopic end of the hydraulic cylinder (the connection mode may be that an embedded groove is concavely arranged at the telescopic end of the hydraulic cylinder, and one end of the push rod, which is close to the hydraulic cylinder is embedded into the embedded groove), and at the end of the push rod, which is far away from the hydraulic cylinder, constitutes the extrusion head.

Example 2

As shown in fig. 3, in the above technical solution, the lower end of the second supporting arm 112 is inclined to be close to the first supporting arm 111, so that the riveting pliers are suitable for riveting the inner wall.

The riveting pliers according to this embodiment are suitable for riveting an inner wall, and the first support arm is located in the combustion chamber, and the second support arm extends between the outer wall and the inner wall.

In this embodiment, the inclination angle of the second support arm needs to be matched with the inclination angle of the inner-layer chuck wall, so as to ensure that the whole second support arm can smoothly extend between the outer-layer chuck wall and the inner-layer chuck wall.

The installation of the squeeze drive and the rivet in this embodiment may be similar to that described in embodiment 1, and the side of the second support arm lower end adjacent the first support arm may be a vertical surface to facilitate the installation of the rivet.

Example 3

Referring to fig. 5 and 8 in detail, the present embodiment provides a combustion chamber riveting apparatus including a riveting clamp 1, a rotating member 2, a clamping assembly, and a moving member 4.

Specifically, the upper end of the rotating member 2 is provided with a supporting table 21 which horizontally and coaxially rotates, and the supporting table 21 is used for placing the combustion chamber 5; the clamping component is arranged at the upper end of the supporting table 21 and is used for clamping the combustion chamber 5 on the supporting table 21 to be coaxially distributed with the supporting table 21; the moving part 4 is arranged above the rotating part 2, the riveting pliers 1 are arranged at the driving end of the moving part 4, the moving part 4 is used for driving the riveting pliers 1 to move to rivet the outer-layer clamping wall or the inner-layer clamping wall of the combustion chamber 5, so that the combustion chamber can be arranged on a supporting table of the rotating part, the combustion chamber is coaxially clamped on the supporting table by the clamping assembly, and the combustion chamber is driven to coaxially rotate when the supporting table rotates, and rivets on the inner-layer clamping wall or the outer-layer clamping wall can be riveted by the riveting pliers.

In the above technical solution, the moving member 4 is a three-dimensional moving member, so that the movement of the riveting pliers is more flexible. Optionally, as shown in fig. 6 and fig. 7, the moving member 4 is an XYZ three-axis gantry sliding table (belonging to the prior art), which has a simple structure and good supporting performance, and of course, the moving member may also directly adopt a mechanical arm with multiple degrees of freedom, and the riveting pliers may be driven to move to rivet the rivet on the combustion chamber by the mechanical arm.

As shown in fig. 9, the clamping assembly in the above technical solution includes a plurality of clamps 31, the clamps 31 are mounted at upper ends of the support tables 21 at intervals along a circumferential direction, the combustion chamber 5 is placed on the support tables 21 and is located between the clamps 31, and the clamps 31 are used to clamp or unclamp the combustion chamber 5 together. Preferably, the plurality of holders 31 are distributed circularly, and the circles where the plurality of holders 31 are located are distributed coaxially with the supporting table 21, so that the structure is simple, and the plurality of holders can clamp circumferentially from the periphery of the combustion chamber, so that the combustion chamber has good clamping effect and can be distributed coaxially on the supporting table.

In the above technical solution, the holder 31 includes a base 311 and a telescopic member 312, the telescopic member 312 is mounted on the base 311, and the telescopic end of the telescopic member faces the middle of the support table 21, so that the plurality of telescopic members can be synchronously telescopic or contracted to clamp or unclamp the combustion chamber. The telescopic piece can adopt telescopic cylinder, the holder is provided with three at least, and a plurality of holder annular interval evenly distributed is in the top of brace table.

In this embodiment, the three-dimensional moving member is mainly used to drive the riveting pliers to move to the second supporting arm and extend into the clamping cavity of the combustion chamber, or to be charged and discharged from the clamping cavity of the combustion chamber, or the portal frame of the whole moving member moves to the upper side or the side of the supporting table, when the portal frame moves to the side of the supporting table, the feeding or discharging of the combustion chamber can be conveniently realized on the supporting table, and when the portal frame moves to the upper side of the supporting table, the riveting pliers can be driven by the moving member to rivet the combustion chamber.

In the actual production process, two riveting pliers on one of the two riveting pliers are as described in embodiment 1, and the riveting pliers on the other one are as described in embodiment 2, and after the riveting pliers are adjusted to be moved to the fixed position by the moving member, the rotating member is only required to drive the supporting table to rotate, at this time, the combustion chamber is coaxially rotated during rotation, and the next rivet is required to be rotated between the extrusion head and the riveting column along with the combustion chamber after each rivet is riveted.

The rotating member in this embodiment may be an existing manual time-rotation slide table.

The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the present utility model in any way; those skilled in the art will readily appreciate that the present utility model may be implemented as shown in the drawings and described above; however, those skilled in the art will appreciate that many modifications, adaptations, and variations of the present utility model are possible in light of the above teachings without departing from the scope of the utility model; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present utility model still fall within the scope of the present utility model.

Claims (10)

1. A clinching clip, comprising:

the pliers seat (11) is n-shaped, is provided with a first supporting arm (111) and a second supporting arm (112), and a jaw is arranged between the lower ends of the first supporting arm and the second supporting arm;

the riveting column (12) is arranged at one side, close to the first supporting arm (111), of the lower end of the second supporting arm (112); and

And a squeeze driving member (13) provided at a lower end of the first support arm (111) and having a squeeze head (131) located in the jaw and aligned with the rivet stem (12), the squeeze driving member (13) being configured to drive the squeeze head (131) thereof to move closer to or farther from the rivet stem (12).

2. Riveting pliers according to claim 1, characterized in that the squeeze drive (13) is a hydraulic cylinder.

3. Riveting pliers according to claim 1, characterized in that the end of the riveting column (12) remote from the second support arm (112) is an enlarged portion (121).

4. Riveting pliers according to claim 1, characterized in that the press drive (13) is mounted on the side of the first support arm (111) facing away from the second support arm (112) and the press head (131) thereof extends through the first support arm (111).

5. Riveting pliers according to any one of claims 1-4, characterized in that the lower end of the second support arm (112) is inclined close to the first support arm (111).

6. A combustion chamber staking device comprising:

riveting clamp (1) according to any one of claims 1-5;

the upper end of the rotating piece (2) is provided with a supporting table (21) which horizontally and coaxially rotates, and the supporting table (21) is used for placing the combustion chamber (5);

the clamping assembly is arranged at the upper end of the supporting table (21) and is used for clamping the combustion chamber (5) on the supporting table (21) to be coaxially distributed with the supporting table (21); and

The moving part (4) is arranged above the rotating part (2), the riveting clamp (1) is arranged at the driving end of the moving part (4), and the moving part (4) is used for driving the riveting clamp (1) to move to rivet the outer-layer double-wall or the inner-layer double-wall of the combustion chamber (5).

7. The combustion chamber riveting apparatus according to claim 6, characterized in that the moving member (4) is a three-dimensional moving member.

8. The combustion chamber riveting apparatus according to claim 7, characterized in that the moving member (4) is an XYZ-axis gantry slipway.

9. The combustor riveting apparatus according to claim 6, wherein the clamping assembly comprises a plurality of clamps (31), the plurality of clamps (31) being installed at upper ends of the support table (21) at intervals in a circumferential direction, the combustor (5) being placed on the support table (21) and being located between the plurality of clamps (31), the plurality of clamps (31) being configured to clamp or unclamp the combustor (5) together.

10. The combustion chamber riveting apparatus according to claim 9, characterized in that the holder (31) comprises a seat (311) and a telescopic member (312), the telescopic member (312) being mounted on the seat (311) with its telescopic end facing towards the middle of the support table (21).