Clamp for welding impeller

Abstract

The utility model discloses a clamp for impeller welding, and belongs to the field of clamps. The fixture for welding the impeller comprises a carrier, a fixture body and a fixture body, the clamping plate is movably arranged on the carrier and used for fixing the impeller; the clamp for impeller welding further comprises a driving set arranged on the carrier and used for driving the clamping plates to move. The first driving part is arranged on the carrier and is used for driving the driving group to fix the impeller on the carrier; the second driving part is arranged on the carrier and is used for driving the driving group to cancel fixation of the impeller; the first driving piece and the second driving piece are arranged on the fixed disc; the rotary disc is rotationally arranged on the fixed disc; wherein the carrier is arranged on the turntable; the diameter of the turntable is greater than that of the fixed disc; the carrier surrounds the turntable; the rotating disc and the fixed disc are coaxial. The fixture for impeller welding has the beneficial effect that the fixture for impeller welding can quickly and efficiently fix an impeller.

Description

Technical Field

[0001] The present application relates to the field of clamps, and in particular, to a clamp for impeller welding. Background Art

[0002] The impeller refers to the wheel disk equipped with moving blades and is a component of the impulse steam turbine rotor.

[0003] When producing the impeller, the impeller needs to be welded and fixed.

[0004] During welding, multiple blades need to be welded to the impeller disc. In the past, operators would directly place the blades on the impeller disc and then weld them; this method would result in large deviations in blade placement, resulting in a low yield rate of the product.

[0005] The impeller positioning fixture disclosed in the application number CN201620436462.2 includes a positioning plate, a locking plate and a pressing plate, which are used to position and lock the impeller blades and press the impeller plate. Then, a laser welding gun is used to weld along the guide groove on the pressing plate.

[0006] Through the above technical solution, the impeller is positioned in advance and then welded, thus avoiding the deviation problem caused by manual placement.

[0007] However, since the positioning plate, locking plate and pressure plate are stacked in sequence from bottom to top to fix the impeller, the locking plate and the pressure plate need to be lifted upward when putting in and taking out the impeller. A certain operating space is required between the positioning plate and the locking plate when taking in or putting in the impeller. If the operating space is too small, it will be difficult to take the impeller. If the operating space is too large, the sliding stroke of the locking plate will increase, and more time and driving force will be required to lift the locking plate, which will greatly reduce the efficiency under the condition of assembly line operation.

[0008] Now there is a need for an impeller welding fixture that can quickly and efficiently fix the impeller. Utility Model Content

[0009] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0010] In order to solve the technical problems mentioned in the above background technology part, some embodiments of the present application provide a fixture for impeller welding, including: a carrier, used to place the impeller; a clamp, movably provided on the carrier, used to fix the impeller; the impeller welding fixture also includes: a driving group, provided on the carrier, used to drive the clamp to move; a first driving member, provided on the carrier, used to drive the driving group to fix the impeller on the carrier; a second driving member, provided on the carrier, used to drive the driving group to unfix the impeller; a fixed disk, the first driving member and the second driving member are provided on the fixed disk; a turntable, rotatably provided on the fixed disk; wherein, the carrier is provided on the turntable; the diameter of the turntable is larger than the diameter of the fixed disk; the carrier surrounds the turntable; the turntable and the fixed disk are coaxial.

[0011] Furthermore, the driving group includes: a first connecting rod, which is hinged on the clamping plate; and a second connecting rod, which is hinged on the carrier; wherein the first connecting rod is hinged to the second connecting rod.

[0012] Furthermore, a cavity for the first connecting rod and the second connecting rod to swing is provided on the carrier.

[0013] Furthermore, when the clamping plate clamps the impeller, the first connecting rod abuts against the side wall of the cavity.

[0014] Furthermore, when the clamping plate clamps the impeller, the second connecting rod abuts against the side wall of the cavity.

[0015] Furthermore, the second connecting rod includes: a hinged portion, hinged on the first connecting rod; an abutment portion, located at an end of the hinged portion away from the first connecting rod; wherein the abutment portion and the hinged portion intersect to form an angle; and the hinged portion of the second connecting rod and the carrier is located at the connection between the hinged portion and the abutment portion.

[0016] Furthermore, the clamping plate includes: a connecting portion rotatably arranged on the carrier; a clamping portion arranged on the connecting portion; wherein a fixing chamber for the clamping portion to move and the impeller to be placed is opened on the carrier; and a first connecting rod is hinged on the connecting portion.

[0017] Furthermore, a first groove is provided on the side wall of the fixed bin that abuts against the impeller, so that the impeller has space for deformation when being clamped.

[0018] Furthermore, a second groove is provided on the side wall of the clamping portion abutting against the impeller, so that the impeller has space for deformation when being clamped.

[0019] Furthermore, there is at least one carrier between the first driving member and the second driving member.

[0020] The beneficial effect of the present application is that it provides an impeller welding fixture that can quickly and efficiently fix the impeller. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0022] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0023] In the attached picture:

[0024] Figure 1 is an overall schematic diagram according to an embodiment of the present application;

[0025] Figure 2 It is a structural schematic diagram of a part of the embodiment, mainly showing the carrier structure;

[0026] Figure 3 It is the state diagram of the driven group when the impeller is fixed;

[0027] Figure 4 It is a structural schematic diagram of a part of the embodiment, mainly showing the splint structure;

[0028] Figure 5 It is a structural schematic diagram of a part of the embodiment, mainly showing the second connecting rod structure.

[0029] Reference numerals:

[0030] 100. Clamp for impeller welding;

[0031] 101, fixed plate;

[0032] 102. Turntable;

[0033] 103, carrier; 103a, fixed chamber; 103b, chamber;

[0034] 104, clamping plate; 104a, connecting portion; 104b, clamping portion; 104c, second groove; 104d, first groove;

[0035] 105, driving group; 105a, first connecting rod; 105b, second connecting rod; 105c, hinged portion; 105d, abutting portion;

[0036] 106. A first driving member;

[0037] 107. Second driving member. DETAILED DESCRIPTION

[0038] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0039] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0040] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0041] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0042] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0043] Reference Figure 1-5 The impeller welding fixture 100 comprises: a fixed disk 101, a rotating disk 102, a carrier 103, a clamping plate 104, a driving group 105, a first driving member 106, and a second driving member 107; the fixed disk 101 is in the shape of a disk; the rotating disk 102 is in the shape of a disk and is rotatably arranged below the fixed disk 101, the diameter of the rotating disk 102 is greater than the diameter of the fixed disk 101, and the center of the rotating disk 102 overlaps with the center of the fixed disk 101; the carrier 103 is fixed on the rotating disk 102, and is located on the part of the rotating disk 102 that does not overlap with the fixed disk 101, and the carrier 103 surrounds the fixed disk 101, and a useful The fixing bin 103a is used to fix the impeller; the clamping plate 104 is rotatably fixed on the carrier 103, and is used to clamp and fix the impeller in the fixing bin 103a; the driving group 105 is arranged on the clamping plate 104, and is used to cooperate with the first driving member 106 and the second driving member 107 to drive the clamping plate 104 to move; the first driving member 106 is a cylinder, which is fixed on the fixed disk 101, and is used to push the driving group 105, so that the driving group 105 drives the clamping plate 104 to move and fix the impeller; the second driving member 107 is a cylinder, which is fixed on the fixed disk 101, and is used to push the driving group 105, so that the driving group 105 drives the clamping plate 104 to move and cancel the impeller.

[0044] There is at least one carrier 103 between the first driving member 106 and the second driving member 107, so that a flow operation can be formed when the turntable 102 rotates. After the impeller is placed on the carrier 103, the first driving member 106 pushes the driving group 105 to allow the clamping plate 104 to fix the impeller in the fixed bin 103a. Then the turntable 102 rotates to drive the fixed impeller to between the first driving member 106 and the second driving member 107, and the blades are welded between the first driving member 106 and the second driving member 107. After the welding is completed, the turntable 102 rotates again to drive the welded blades to move to one side of the second driving member 107. Then the second driving member 107 is started to push the driving group 105, so that the driving group 105 drives the clamping plate 104 to move to cancel the fixation of the impeller, and then the welded impeller can be taken out.

[0045] The clamping plate 104 includes: a connecting portion 104a and a clamping portion 104b; the connecting portion 104a is rotatably connected to the carrier 103; the clamping portion 104b is integrally formed on the upper end surface of the connecting portion 104a, and the clamping portion 104b is located in the fixed chamber 103a, and is used to clamp the impeller. A second groove 104c is provided on the side wall of the clamping portion 104b for clamping the impeller, and a first groove 104d is provided on the side wall of the fixed chamber 103a for abutting against the impeller. The first groove 104d cooperates with the second groove 104c so that the impeller will produce a slight deformation when being tightened, giving the impeller deformation space, which can reduce the risk of the impeller being crushed and deformed.

[0046] The driving group 105 includes: a first connecting rod 105a and a second connecting rod 105b; the first connecting rod 105a is hinged on the connecting portion 104a; one end of the second connecting rod 105b is hinged to the first connecting rod 105a, and the other end of the second connecting rod 105b is hinged to the carrier 103, and a cavity 103b is provided on the carrier 103 for the first connecting rod 105a and the second connecting rod 105b to swing.

[0047] The second connecting rod 105b includes: a hinge part 105c and a butting part 105d; the hinge part 105c is hinged on one end of the first connecting rod 105a; the butting part 105d is integrally formed on the hinge part 105c at one end away from the first connecting rod 105a, and the butting part 105d intersects with the hinge part 105c at an angle. The angle formed by the hinge part 105c and the butting part 105d is close to the center direction of the fixed disk 101 as an inner angle, and the angle away from the center direction of the fixed disk 101 as an outer angle. The hinge point of the second connecting rod 105b and the carrier 103 is located at the intersection of the hinge part 105c and the butting part 105d.

[0048] The hinge portion 105c is in an arc shape, and the opening of the arc faces a direction away from the center of the rotating disk 102. When the first drive is started, the first drive contacts the top of the arc on the hinge portion 105c.

[0049] After the first driving member 106 is started, it abuts against the hinged part 105c, pushing the hinged part 105c to swing, allowing the hinged part 105c to push the first connecting rod 105a to swing, and finally driving the clamping part 104b to swing, clamping the impeller in the fixed bin 103a, and fixing the impeller. At this time, the hinged part of the hinged part 105c and the first connecting rod 105a abuts against the inner wall of the cavity 103b, and the hinged part 105c and the first connecting rod 105a form an angle, and the opening direction of the angle is toward the center of the turntable 102, so that the first connecting rod 105a and the hinged part 105c are stopped in one direction, so that the clamping plate 104 can no longer reverse after clamping the impeller, thereby forming a fixed state.

[0050] When the welded impeller rotates to one side of the second driving member 107, the second driving member 107 starts to abut against the abutment part 105d, pressing the abutment part 105d, and the abutment part 105d swings, driving the hinge part 105c to swing toward the second driving member 107, so that the hinge part 105c and the first connecting rod 105a move toward the direction close to the second driving member 107, pulling the connecting part 104a to rotate, so that the clamping part 104b cancels the fixation of the impeller.

[0051] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. A fixture for impeller welding, comprising: A carrier for placing an impeller; A clamping plate, movably disposed on the carrier, for fixing the impeller; Features: The impeller welding fixture also includes: A driving group, arranged on the carrier, for driving the splint to move; A first driving member, disposed on the carrier, for driving the driving group to fix the impeller on the carrier; A second driving member, disposed on the carrier, for driving the driving group to unfix the impeller; a fixed plate, on which the first driving member and the second driving member are disposed; A turntable, rotatably disposed on the fixed disk; Wherein, the carrier is arranged on the rotating disk; the diameter of the rotating disk is larger than the diameter of the fixed disk; the carrier surrounds the rotating disk; and the rotating disk is coaxial with the fixed disk.

2. The impeller welding fixture according to claim 1, characterized in that: The driving group includes: A first connecting rod, hinged to the clamping plate; A second connecting rod is hinged to the carrier; Wherein, the first connecting rod is hinged to the second connecting rod.

3. The impeller welding fixture according to claim 2, characterized in that: The carrier is provided with a cavity for the first connecting rod and the second connecting rod to swing.

4. The impeller welding fixture according to claim 3, characterized in that: When the clamping plate clamps the impeller, the first connecting rod abuts against the side wall of the cavity.

5. The impeller welding fixture according to claim 3, characterized in that: When the clamping plate clamps the impeller, the second connecting rod abuts against the side wall of the cavity.

6. The impeller welding fixture according to claim 2, characterized in that: The second connecting rod comprises: A hinged portion, hinged to the first connecting rod; an abutment portion, located on an end of the hinge portion away from the first connecting rod; Wherein, the abutting portion and the hinge portion intersect to form an angle; and the hinged portion between the second connecting rod and the carrier is located at the connection between the hinged portion and the abutting portion.

7. The impeller welding fixture according to claim 2, characterized in that: The splint comprises: A connecting part, rotatably disposed on the carrier; A clamping portion, disposed on the connecting portion; Wherein, a fixed compartment for the clamping part to move and the impeller to be placed is provided on the carrier; and the first connecting rod is hinged to the connecting part.

8. The impeller welding fixture according to claim 7, characterized in that: A first groove is provided on the side wall of the fixed bin that abuts against the impeller, so that the impeller has space for deformation when being clamped.

9. The impeller welding fixture according to claim 8, characterized in that: A second groove is provided on the side wall of the clamping portion abutting against the impeller, so that the impeller has space for deformation when being clamped.

10. The impeller welding fixture according to claim 1, characterized in that: At least one carrier is provided between the first driving member and the second driving member.

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