Positioning and clamping tool for transition guide vane machining

Abstract

The utility model relates to the field of tool clamps, and particularly discloses a positioning and clamping tool for transition guide vane machining, which comprises a bottom plate, two first reference parts, two second reference parts and a third reference part are sequentially arranged on the top surface of the bottom plate from one end to the other end, the two first reference parts are provided with first pressing plate parts in one-to-one correspondence, and the two second reference parts are provided with second pressing plate parts in one-to-one correspondence. First reference pins are arranged on the side faces of the two second reference parts, first locking parts corresponding to the first reference pins are installed on the bottom plate, a second pressing plate part is correspondingly arranged on the third reference part, and second reference pins and second locking parts are arranged on the opposite side faces of the two second reference parts correspondingly. The first reference piece, the second reference piece and the third reference piece are used for conducting six-point positioning on the transition guide vane, the locking piece and the pressing plate piece are matched for compressing and fixing the transition guide vane, the transition guide vane can be accurately positioned, deformation of the transition guide vane is avoided, stability in the machining process is guaranteed, stable batch machining of the transition guide vane is achieved, and the machining efficiency is improved. And the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of tooling fixtures, in particular to a positioning and clamping tooling for the machining of transition guide vanes. Background Technique

[0002] A transition guide vane is a mechanical component used to guide and regulate the flow of fluid, and is usually applied in hydraulic turbines, pumps and other similar fluid mechanical equipment. Its main function is to introduce the fluid from the upstream to the downstream, and at the same time adjust the speed and direction of the fluid to ensure that the fluid can smoothly enter the main working blades or other components. The transition guide vane is usually located in front of the moving blades or the main blades and serves as a transitional guiding device. During the machining process of the transition guide vane, deformation is likely to occur and the machining is unstable. Clamping and positioning are effective means to solve the machining of such parts. Therefore, this application proposes a positioning and clamping tooling for the machining of transition guide vanes to solve the above problems. Content of the Utility Model

[0003] Aiming at the existing problems, the utility model provides a positioning and clamping tooling for the machining of transition guide vanes, which can effectively solve the problems put forward in the background technique.

[0004] To solve the above problems, the utility model adopts the following technical scheme:

[0005] A positioning and clamping tooling for the machining of transition guide vanes, which includes a bottom plate. Two first reference parts, two second reference parts and a third reference part are sequentially arranged on the top surface of the bottom plate from one end to the other end. First pressing plate parts are arranged corresponding to the two first reference parts one by one. First reference pins are arranged on the sides of the two second reference parts. A first locking part corresponding to the first reference pin is installed on the bottom plate. A second pressing plate part is arranged corresponding to the third reference part. A second reference pin and a second locking part are respectively arranged on the opposite side surfaces of the two second reference parts.

[0006] Preferably, a first positioning block is arranged on the top surface of the first reference part, and the first pressing plate part is arranged above the first positioning block.

[0007] Preferably, a second positioning block is arranged on the top surface of the third reference part, and the second pressing plate part is arranged above the second positioning block.

[0008] Preferably, both the first positioning block and the second positioning block are of a conical structure.

[0009] Preferably, a square block is fixed on the bottom plate. The first pressing plate part is threadedly connected to the square block through a first threaded column, and the height of the first pressing plate part is adjusted by rotating the first threaded column. The second pressing plate part is threadedly connected to the bottom plate through a second threaded column, and the height of the second pressing plate part is adjusted by rotating the second threaded column.

[0010] Preferably, a first cushion sleeve is sleeved outside the first threaded post between the first pressing plate and the square block, and a second cushion sleeve is sleeved outside the second threaded post between the second pressing plate and the bottom plate.

[0011] Preferably, strip grooves are provided on both the first pressing plate and the second pressing plate, positioning posts are arranged in the strip grooves, and the positioning posts are fixedly connected to the square block or the bottom plate.

[0012] Preferably, the first reference pin is arranged on a side surface of the second reference member close to the third reference member, the first locking member is a hand-tightening screw, a threaded seat is fixed on the bottom plate, and the first locking member is in threaded connection with the threaded seat.

[0013] Preferably, a base ball is fixed on the top surface of the bottom plate.

[0014] Preferably, cushion feet are fixedly connected to both sides of the bottom surface of the bottom plate.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model performs six-point positioning on the transition guide vane through the first reference member, the second reference member and the third reference member, and cooperates with the locking member and the pressing plate member to press and fix the transition guide vane, which can accurately position the transition guide vane, avoid deformation of the transition guide vane, ensure stability during the processing process, realize batch and stable processing of the transition guide vane, and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional schematic diagram of the overall structure of a positioning and clamping tool for processing a transition guide vane;

[0017] Figure 2 is a distribution diagram of reference positioning points of a positioning and clamping tool for processing a transition guide vane;

[0018] Figure 3 is a schematic diagram of the structure of a positioning and clamping tool for processing a transition guide vane clamping a transition guide vane.

[0019] In the figure: 1, bottom plate; 2, first reference member; 3, second reference member; 4, third reference member; 5, first pressing plate; 6, first reference pin; 7, first locking member; 8, second pressing plate; 9, second reference pin; 10, second locking member; 11, base ball; 12, cushion foot; 13, first positioning block; 14, second positioning block; 15, square block; 16, first threaded post; 17, second threaded post; 18, first cushion sleeve; 19, second cushion sleeve; 20, strip groove; 21, positioning post; 22, threaded seat; 23, transition guide vane. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Combined with Figures 1 to 3 Describing this embodiment, this embodiment provides a positioning and clamping tooling for the processing of transition guide vanes, which includes a bottom plate 1. On the top surface of the bottom plate 1, two first reference parts 2, two second reference parts 3 and a third reference part 4 are sequentially arranged from one end to the other end. A first pressing plate part 5 is correspondingly arranged for each of the two first reference parts 2. First reference pins 6 are arranged on the sides of the two second reference parts 3. A first locking part 7 corresponding to the first reference pin 6 is installed on the bottom plate 1. A second pressing plate part 8 is correspondingly arranged for the third reference part 4. A second reference pin 9 and a second locking part 10 are respectively arranged on the opposite side surfaces of the two second reference parts 3. A base ball 11 is fixed on the top surface of the bottom plate 1, and foot pads 12 are fixedly connected to both sides of the bottom surface of the bottom plate 1.

[0022] Furthermore, a first positioning block 13 is provided on the top surface of the first reference part 2, and the first pressing plate part 5 is arranged above the first positioning block 13. A second positioning block 14 is provided on the top surface of the third reference part 4, and the second pressing plate part 8 is arranged above the second positioning block 14. Both the first positioning block 13 and the second positioning block 14 are conical structures.

[0023] The tops of the two first positioning blocks 13, the top of the second positioning block 14, the ends of the two first reference pins 6 and the end of the second reference pin 9 form six reference points, namely reference points A, B, C, D, E, and F, so as to achieve six-point reference positioning of the transition guide vane 23.

[0024] A square block 15 is fixed on the bottom plate 1. The first pressing plate member 5 is threadedly connected to the square block 15 through the first threaded column 16. Rotating the first threaded column 16 adjusts the height of the first pressing plate member 5. The second pressing plate member 8 is threadedly connected to the bottom plate 1 through the second threaded column 17. Rotating the second threaded column 17 adjusts the height of the second pressing plate member 8. Rotating the first threaded column 16 and the second threaded column 17 moves the first pressing plate member 5 and the second pressing plate member 8 downward, thereby tightly pressing and fixing the transition guide vane 23. A first cushion sleeve 18 is sleeved outside the first threaded column 16 between the first pressing plate member 5 and the square block 15, and a second cushion sleeve 19 is sleeved outside the second threaded column 17 between the second pressing plate member 8 and the bottom plate 1, thereby limiting the downward pressing height of the first pressing plate member 5 and the second pressing plate member 8. Both the first pressing plate member 5 and the second pressing plate member 8 are provided with strip grooves 20, and positioning columns 21 are arranged in the strip grooves 20. The positioning columns 21 are fixedly connected to the square block 15 or the bottom plate 1 to prevent the first pressing plate member 5 and the second pressing plate member 8 from rotating during height adjustment.

[0025] The first reference pin 6 is arranged on one side surface of the second reference member 3 close to the third reference member 4. The first locking member 7 is a hand-tightening screw. A threaded seat 22 is fixed on the bottom plate 1. The first locking member 7 is threadedly connected to the threaded seat 22. The second locking member 10 is also a hand-tightening screw. The second locking member 10 is threadedly connected to the second reference member 3, and cooperates with the second reference pin 9 to clamp and fix the transition guide vane 23.

[0026] The working principle of the present utility model is as follows: When the transition guide vane 23 is placed, the lower end surface of the inner ring of the transition guide vane 23 is supported and fitted with the first positioning block 13. The first pressing plate member 5 is pressed against the upper end surface of the inner ring. The first reference pin 6 abuts against the inner side surface of the outer ring. The first locking member 7 is pressed against the outer side surface of the outer ring. The second positioning block 14 supports the bottom surface of the outer ring. At the same time, the second reference pin 9 is in contact with one side surface of the transition guide vane 23, and the second locking member 10 abuts against the other side surface of the transition guide vane 23, thereby achieving six-point positioning of the transition guide vane 23, and cooperating with the locking member and the pressing plate member to tightly press and fix the transition guide vane 23, enabling precise positioning of the transition guide vane 23, avoiding deformation of the transition guide vane 23, ensuring stability during the processing, realizing batch and stable processing of the transition guide vane 23, and improving production efficiency.

[0027] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0028] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A positioning and clamping tooling for the machining of transition guide vanes, which comprises a bottom plate, and is characterized in that, On the top surface of the bottom plate, two first reference members, two second reference members, and one third reference member are sequentially arranged from one end to the other end. One first pressing member is correspondingly arranged for each of the two first reference members. First reference pins are arranged on the side surfaces of the two second reference members. A first locking member corresponding to the first reference pin is installed on the bottom plate. A second pressing member is correspondingly arranged for the third reference member. A second reference pin and a second locking member are respectively arranged on the opposite side surfaces of the two second reference members.

2. The positioning and clamping tooling for the processing of transition guide vanes according to claim 1, characterized in that, A first positioning block is provided on the top surface of the first reference member, and the first pressing member is arranged above the first positioning block.

3. The positioning and clamping tooling for the processing of transition guide vanes according to claim 2, characterized in that, A second positioning block is provided on the top surface of the third reference member, and the second pressing member is arranged above the second positioning block.

4. A positioning and clamping tooling for the machining of a transition guide vane according to claim 3, characterized in that, Both the first positioning block and the second positioning block are of a conical structure.

5. A positioning and clamping tooling for the machining of transition guide vanes according to claim 3, characterized in that, A square block is fixed on the bottom plate. The first pressing member is threadedly connected to the square block through a first threaded column. The height of the first pressing member is adjusted by rotating the first threaded column. The second pressing member is threadedly connected to the bottom plate through a second threaded column. The height of the second pressing member is adjusted by rotating the second threaded column.

6. A positioning and clamping tooling for the machining of a transition guide vane according to claim 5, characterized in that, A first cushion sleeve is sleeved outside the first threaded column between the first pressing member and the square block. A second cushion sleeve is sleeved outside the second threaded column between the second pressing member and the bottom plate.

7. A positioning and clamping tooling for the machining of a transition guide vane according to claim 5, characterized in that, Strip grooves are provided on both the first pressing member and the second pressing member. Positioning columns are arranged in the strip grooves, and the positioning columns are fixedly connected to the square block or the bottom plate.

8. The positioning and clamping tooling for the processing of the transition guide vane according to claim 1, characterized in that, The first reference pin is arranged on one side surface of the second reference member close to the third reference member. The first locking member is a hand-tightening screw. A threaded seat is fixed on the bottom plate, and the first locking member is threadedly connected to the threaded seat.

9. The positioning and clamping tooling for the processing of transition guide vanes according to claim 1, wherein, A base ball is fixed on the top surface of the bottom plate.

10. The positioning and clamping tooling for the machining of the transition guide vane according to claim 1, characterized in that, Foot pads are fixedly connected to both sides of the bottom surface of the bottom plate.

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