Positioning and clamping tool for machining upper split guide vane

Abstract

The utility model relates to the field of tool clamps, and particularly discloses a positioning and clamping tool for machining an upper split guide vane, which comprises a bottom plate, and two first reference parts, two second reference parts, two third reference parts and a fourth reference part are sequentially arranged on the top surface of the bottom plate from one end to the other end. The top faces of the two first reference parts are provided with first reference pins, the two second reference parts are provided with second reference pins and locking parts respectively, the side faces of the two third reference parts are provided with third reference pins, and the top face of the fourth reference part is provided with a fourth reference pin. According to the upper split guide vane positioning device, six-point positioning is conducted on the upper split guide vane, the upper split guide vane is pressed and fixed through the cooperation of the locking piece and the two sets of pressing plate pieces, the upper split guide vane can be accurately positioned, deformation of the upper split guide vane is avoided, and the upper split guide vane positioning device is simple in structure, convenient to use and high in practicability. And the stability in the machining process is guaranteed, batch stable machining of the upper split guide vane is achieved, and the production efficiency is improved.

Description

Technical Field

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

[0002] Upper split guide vanes are a specific type of guide vane arrangement. They are usually used in pairs and are located in the flow guiding channel before the fluid enters the device. They precisely control and distribute the fluid flow to ensure that the fluid enters the impeller or moving blades at the optimal angle and speed. "Upper split" means that these guide vanes are usually symmetrically installed above the flow channel, forming a symmetric opening between them. This opening can be adjusted to control the fluid flow rate and direction. By changing the opening and closing angle of the guide vanes, the fluid velocity and flow rate can be precisely adjusted to meet the requirements of different working conditions. The main functions of upper split guide vanes include: controlling the fluid entry angle: ensuring that the fluid enters the impeller or moving blades at an appropriate angle to reduce impact and energy loss; regulating the flow rate: controlling the fluid flow rate entering the device by changing the opening and closing degree of the guide vanes to adapt to different working conditions; reducing eddies and turbulence: optimizing the fluid flow and reducing eddies and turbulence that may cause a decrease in device efficiency. Upper split guide vanes are prone to deformation during the machining process, resulting in unstable machining. Clamping and positioning are effective means to solve the machining of such parts. Therefore, this application proposes a positioning and clamping tooling for machining upper split 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 machining upper split guide vanes, which can effectively solve the problems raised in the background technique.

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

[0005] A positioning and clamping tooling for machining upper split guide vanes, which includes a bottom plate. On the top surface of the bottom plate, two first reference parts, two second reference parts, two third reference parts and a fourth reference part are sequentially arranged from one end to the other end. On the top surfaces of the two first reference parts, first reference pins are provided. On the mutually adjacent side surfaces of the two second reference parts, corresponding second reference pins and locking parts are respectively provided. The two third reference parts are arranged outside the two second reference parts, and third reference pins are provided on the side surfaces of the two third reference parts. On the top surface of the fourth reference part, a fourth reference pin is provided. Above the first reference pin and the fourth reference pin, a first pressing plate part and a second pressing plate part are respectively provided.

[0006] Preferably, the two first reference members are arranged side by side, and a first spacer block fixed to the bottom plate is provided on one side of the first reference member. The first pressing plate member is threadedly connected to the first spacer block through a first threaded column. By rotating the first threaded column, the height of the first pressing plate member is adjusted. The first pressing plate member cooperates with the first reference pin to tightly fix the upper pair of guide vanes.

[0007] Preferably, a second spacer block fixed to the bottom plate is provided on one side of the fourth reference member. The second pressing plate member is threadedly connected to the second spacer block through a second threaded column. By rotating the second threaded column, the height of the second pressing plate member is adjusted. The second pressing plate member cooperates with the fourth reference pin to tightly fix the upper pair of guide vanes.

[0008] Preferably, a first cushion sleeve is sleeved outside the first threaded column between the first pressing plate member and the square block, and a second cushion sleeve is sleeved outside the second threaded column between the second pressing plate member and the bottom plate.

[0009] Preferably, strip grooves are provided on both the first pressing plate member and the second pressing plate member, and positioning columns are provided in the strip grooves. The positioning columns are fixedly connected to the first spacer block or the second spacer block.

[0010] Preferably, the locking member is a locking screw, and the locking screw cooperates with the second reference pin to fix the upper pair of guide vanes.

[0011] Preferably, the third reference pin is provided on a side surface of the third reference member close to the fourth reference member.

[0012] Preferably, a base ball is fixed to the top surface of the bottom plate.

[0013] Preferably, foot pads are fixedly connected to both sides of the bottom surface of the bottom plate.

[0014] 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 upper pair of guide vanes through the first reference pin, the second reference pin, the third reference pin, and the fourth reference pin, and cooperates with the locking member and the two groups of pressing plate members to tightly fix the upper pair of guide vanes, which can accurately position the upper pair of guide vanes, avoid deformation of the upper pair of guide vanes, ensure stability during the processing process, realize batch and stable processing of the upper pair of guide vanes, and improve production efficiency. Description of the Drawings

[0015] Figure 1 It is a perspective schematic view of an overall structure of a positioning and clamping tooling for processing an upper pair of guide vanes from one perspective;

[0016] Figure 2 It is a perspective schematic view of an overall structure of a positioning and clamping tooling for processing an upper pair of guide vanes from another perspective;

[0017] Figure 3It is a distribution diagram of reference positioning points for a positioning and clamping tooling for machining upper guide vanes.

[0018] Figure 4 It is a structural schematic diagram of a positioning and clamping tooling for machining upper guide vanes that clamps the upper guide vanes.

[0019] In the figure: 1. Base plate; 2. First reference part; 3. Second reference part; 4. Third reference part; 5. Fourth reference part; 6. First reference pin; 7. Second reference pin; 8. Locking part; 9. Third reference pin; 10. Fourth reference pin; 11. First pressing plate part; 12. Second pressing plate part; 13. Base ball; 14. Foot pad; 15. First cushion block; 16. First threaded column; 17. Second cushion block; 18. Second threaded column; 19. First bush; 20. Second bush; 21. Strip groove; 22. Positioning column; 23. Upper guide vane. Specific implementation mode

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

[0021] Combined with Figures 1 to 4 To illustrate this implementation mode, this implementation mode provides a positioning and clamping tooling for machining upper guide vanes, which includes a base plate 1. On the top surface of the base plate 1, two first reference parts 2, two second reference parts 3, two third reference parts 4 and a fourth reference part 5 are arranged in sequence from one end to the other end. On the top surfaces of the two first reference parts 2, first reference pins 6 are provided. On the side surfaces of the two second reference parts 3 close to each other, corresponding second reference pins 7 and locking parts 8 are respectively provided. The two third reference parts 4 are arranged outside the two second reference parts 3, and third reference pins 9 are provided on the side surfaces of the two third reference parts 4. On the top surface of the fourth reference part 5, a fourth reference pin 10 is provided. Above the first reference pin 6 and the fourth reference pin 10, a first pressing plate part 11 and a second pressing plate part 12 are respectively provided. A base ball 13 is fixed on the top surface of the base plate 1, and foot pads 14 are fixedly connected to both sides of the bottom surface of the base plate 1.

[0022] As Figure 3 shown, the end faces of the two first reference pins 6, one second reference pin 7, two third reference pins 9 and one fourth reference pin 10 form six reference points, namely reference points A, B, C, D, E, and F, so as to achieve six-point reference positioning of the upper guide vane 23.

[0023] Two first reference members 2 are arranged side by side, and a first cushion block 15 fixed to the bottom plate 1 is provided on one side of the first reference member 2. The first pressing plate member 11 is threadedly connected to the first cushion block 15 through a first threaded column 16. Rotating the first threaded column 16 adjusts the height of the first pressing plate member 11. The first pressing plate member 11 cooperates with the first reference pin 6 to tightly press and fix the upper pair of guide vanes 23. A second cushion block 17 fixed to the bottom plate 1 is provided on one side of the fourth reference member 5. The second pressing plate member 12 is threadedly connected to the second cushion block 17 through a second threaded column 18. Rotating the second threaded column 18 adjusts the height of the second pressing plate member 12. The second pressing plate member 12 cooperates with the fourth reference pin 10 to tightly press and fix the upper pair of guide vanes 23. Rotating the first threaded column 16 and the second threaded column 18 moves the first pressing plate member 11 and the second pressing plate member 12 downward, thereby tightly pressing and fixing the upper pair of guide vanes 23. A first cushion sleeve 19 is sleeved outside the first threaded column 16 between the first pressing plate member 11 and the square block, and a second cushion sleeve 20 is sleeved outside the second threaded column 18 between the second pressing plate member 12 and the bottom plate 1, so as to limit the downward pressing height of the first pressing plate member 11 and the second pressing plate member 12. Strip grooves 21 are provided on both the first pressing plate member 11 and the second pressing plate member 12, and positioning columns 22 are provided in the strip grooves 21. The positioning columns 22 are fixedly connected to the first cushion block 15 or the second cushion block 17, preventing the first pressing plate member 11 and the second pressing plate member 12 from rotating during height adjustment.

[0024] The second reference pin 7 is provided on one of the second reference members 3, and the locking member 8 is provided on the other second reference member 3. The locking member 8 is a locking screw, and the locking screw is a hand-tightening screw. The locking screw cooperates with the second reference pin 7 to fix the upper pair of guide vanes 23 and position the upper pair of guide vanes 23 in the Y direction.

[0025] The third reference pin 9 is provided on a side surface of the third reference member 4 close to the fourth reference member 5 to position the Z surface of the upper pair of guide vanes 23.

[0026] The working principle of the present utility model is as follows: When the upper pair of guide vanes 23 are placed, the lower end surface of the inner ring of the upper pair of guide vanes 23 is supported and fitted with the first reference pin 6, the first pressing plate member 11 is pressed against the upper end surface of the inner ring, the lower end surface of the outer ring of the upper pair of guide vanes 23 is supported and fitted with the fourth reference pin 10, and the upper pair of guide vanes 23 are tightly pressed and fixed in cooperation with the first pressing plate member 11 and the second pressing plate member 12. The locking member 8 cooperates with the second reference pin 7 to clamp and position the blades of the upper pair of guide vanes 23. The third reference pin 9 is fitted with the inner wall of the outer ring of the upper pair of guide vanes 23, realizing six-point positioning of the guide vanes. And in cooperation with the locking member 8 and the two groups of pressing plate members, the upper pair of guide vanes 23 are tightly pressed and fixed, enabling precise positioning of the upper pair of guide vanes 23, preventing the upper pair of guide vanes 23 from deforming, ensuring stability during the processing, realizing batch and stable processing of the upper pair of guide vanes 23, and improving production efficiency.

[0027] It should be noted that in this text, 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 "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising 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 invention 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 principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning and clamping tooling for processing upper 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, two third reference members, and one fourth reference member are sequentially arranged from one end to the other end. On the top surfaces of the two first reference members, first reference pins are provided. On the side surfaces of the two second reference members close to each other, corresponding second reference pins and locking members are respectively provided. The two third reference members are arranged outside the two second reference members, and third reference pins are provided on the side surfaces of the two third reference members. On the top surface of the fourth reference member, a fourth reference pin is provided. Above the first reference pin and the fourth reference pin, a first pressing plate member and a second pressing plate member are respectively provided.

2. The positioning and clamping tooling for the upper guide vane machining according to claim 1, characterized in that, The two first reference members are arranged side by side, and a first cushion block fixed to the bottom plate is provided on one side of the first reference member. The first pressing plate member is threadedly connected to the first cushion block through a first threaded column. By rotating the first threaded column, the height of the first pressing plate member is adjusted, and the first pressing plate member cooperates with the first reference pin to press and fix the upper pair of guide vanes.

3. The positioning and clamping tooling for the machining of the upper guide vane according to claim 2, characterized in that, On one side of the fourth reference member, a second cushion block fixed to the bottom plate is provided. The second pressing plate member is threadedly connected to the second cushion block through a second threaded column. By rotating the second threaded column, the height of the second pressing plate member is adjusted, and the second pressing plate member cooperates with the fourth reference pin to press and fix the upper pair of guide vanes.

4. A positioning and clamping tooling for machining upper guide vanes according to claim 3, characterized in that, A first cushion sleeve is sleeved outside the first threaded column between the first pressing plate member and the square block. A second cushion sleeve is sleeved outside the second threaded column between the second pressing plate member and the bottom plate.

5. A positioning and clamping tool for upper guide vane machining according to claim 3, characterized in that, Strip grooves are provided on both the first pressing plate member and the second pressing plate member, and positioning columns are provided in the strip grooves. The positioning columns are fixedly connected to the first cushion block or the second cushion block.

6. The positioning and clamping tooling for machining the upper guide vane according to claim 1, characterized in that, The locking member is a locking screw, and the locking screw cooperates with the second reference pin to fix the upper pair of guide vanes.

7. A positioning and clamping tooling for machining the upper guide vane according to claim 1, characterized in that, The third reference pin is provided on the side surface of the third reference member close to the fourth reference member.

8. A positioning and clamping tooling for machining the upper guide vane according to claim 1, characterized in that A base ball is fixed to the top surface of the bottom plate.

9. A positioning and clamping tooling for machining the upper guide vane according to claim 1, characterized in that, On both sides of the bottom surface of the bottom plate, foot pads are fixedly connected.

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