Auxiliary tool for laser cladding of pin hole in guider blade

Abstract

The utility model provides an auxiliary tool for laser cladding of a pin hole in a guider blade. The auxiliary tool comprises a base supporting assembly, a chuck and a bearing plate. The base supporting assembly comprises a bottom plate, a limiting assembly arranged at one end of the top of the bottom plate and a guide rail assembly arranged at the other end of the top of the bottom plate, the bottom of the bearing plate can slide along the guide rail assembly, the limiting assembly comprises a supporting plate, a rotating shaft and a limiting pin, the rotating shaft is rotationally installed on the supporting plate, and the limiting pin is fixed to the rotating shaft and can rotate along with the rotating shaft. A groove is formed in a port of the limiting pin and arranged according to the angle of a to-be-repaired area of a pin hole, one end of the chuck is matched with the pin in an inserted mode, and the limiting pin clamped with the groove is arranged on the chuck. And the other end of the chuck is clamped and matched with a blade bottom center hole. The top of the bearing plate is provided with an arc face, an inclined face and an arc-shaped clamping groove which can be matched with the special-shaped face of the outer wall of the blade body and used for adjusting the angle of the blade body, so that the to-be-repaired area of the pin hole can be fully exposed when the blade body is in different position states, and high-quality rapid repairing of the pin hole is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser cladding, and particularly relates to an auxiliary tooling for laser cladding of pin holes on a guide vane blade. Background Technique

[0002] During the maintenance process of aero-engine, it is found that the pin hole walls of the guide vanes of stages I to VI (the guide vane flange is located at the bottom of the blade body, a central mounting hole is provided along the axis of the blade body at the upper edge of the bottom, the pin holes are arranged at the top of the blade body, and the axes of the pin holes are parallel to the axis of the blade body) are less than 1.0 mm in part of the size due to the original manufacturing process defects or the long-term working wear of the pin columns in the pin holes during use, which does not meet the process requirements and can only be scrapped or reused after repair. The scrapping treatment not only seriously increases the repair cost, but also leads to an increase in the demand for spare parts, seriously affecting the repair cycle and normal delivery of the engine.

[0003] Through the analysis and test of the material and process of the pin hole walls of the turbine guide vanes, laser cladding technology can be used for additive repair on the pin hole walls, and the size repair of the pin hole walls can be completed in cooperation with mechanical processing equipment. Laser cladding remanufacturing technology is an additive repair technology based on laser melting of alloy powder materials for repairing damaged surfaces. Using high-energy laser beam irradiation, the thin-layer matrix and the alloy powder synchronously fed onto the surface of the workpiece are melted to achieve the metallurgical bonding between the additional material and the matrix. The metal materials are stacked layer by layer to achieve additive repair. Compared with traditional welding technology, this additive repair method has excellent characteristics such as high energy density, small heat input, fast cooling speed, small deformation, almost no limitation on powder materials, a wide controllable range of the thickness of the cladding layer, and easy automation control of the process. It can effectively change the original damaged matrix and at the same time reduce the later machining allowance, and thus has been widely used.

[0004] Since the pin holes of the turbine guide vanes are arranged along the length direction of the blades and are located in the concave area at the top of the blades. When the blades are in the flat state, the damaged area to be repaired of the pin holes cannot be effectively exposed to the area reachable by the laser cladding head.

[0005] When the outer wall, end face or inner wall of the pin hole is worn and needs to be repaired, the existing method generally uses multiple building block-type pads to raise one end of the blade pin hole for laser cladding repair. When using this method for each placement and repair, only the naked eye can be used to roughly judge the relative position of the blade, and with the operation of the laser cladding equipment, the generated vibration may cause the blade to shift relatively, and the stability of the repair quality of multiple blade pin holes cannot be guaranteed. At the same time, since the side wall of the blade body is an irregular surface, the pad method cannot effectively limit the placement posture of the blade, and there are great quality risks during the repair process. Summary of the Utility Model

[0006] The purpose of the present utility model is to overcome the deficiencies of the prior art that the damaged part of the pin hole cannot be effectively exposed and the quality stability of repair is poor, and to provide an auxiliary tooling for laser cladding of pin holes on the guide vane, which can effectively support the turbine guide vane on the one hand, and on the other hand, adjust the exposure angle of the pin hole through the limit pin, chuck and special-shaped surface designed on the supporting plate on the base support assembly, so that the damaged area of the pin hole is exposed within the reach of laser cladding.

[0007] To achieve the above object, the technical solution provided by the present utility model is:

[0008] An auxiliary tooling for laser cladding of pin holes on a guide vane, which is characterized in that: it includes a base support assembly, a chuck and a supporting plate; the base support assembly includes a bottom plate, a limit assembly arranged at one end of the top of the bottom plate along the width direction of the bottom plate, and two guide rail assemblies arranged in parallel along the length direction of the bottom plate at the other end of the top of the bottom plate;

[0009] The limit assembly includes two vertical and parallel support plates fixed on the bottom plate, a rotating shaft and a limit pin;

[0010] The rotating shaft is rotatably installed on the support plate; one end of the limit pin is fixedly connected to the middle part of the side wall of the rotating shaft, and a limit hole is opened at the other end; the axis of the limit hole is perpendicular to the axis of the rotating shaft; a plurality of grooves are arranged circumferentially on the port of the limit hole;

[0011] The two ends of the chuck are respectively clamped in the limit hole of the limit pin and the central mounting hole at the bottom of the guide vane;

[0012] A limit pin is radially arranged at one end of the chuck connected to the limit pin, and the limit pin can be fitted into the groove of the limit pin;

[0013] The bottom of the supporting plate is connected to the guide rail assembly and can slide along the guide rail assembly; the top of the supporting plate is provided with an arc surface, an inclined surface respectively matching the special-shaped surface of the side wall of the blade body, and an arc-shaped card slot opened on the arc surface, which can expose the corresponding area to be repaired of the pin hole when the side wall of the blade body contacts the arc surface, the inclined surface or the arc-shaped card slot respectively.

[0014] Further, the limit pin is composed of two vertically arranged columnar structures. A central through hole is opened on the first columnar structure, and the first columnar structure is nested on the rotating shaft and fixedly connected;

[0015] One end of the second columnar structure is vertically fixed to the middle part of the outer wall of the first columnar structure, and a limit hole is opened along the axis at the other end; the groove is arranged at the port of the other end of the second columnar structure.

[0016] Further, the first columnar structure and the rotating shaft are fixed by strong glue.

[0017] Further, the chuck includes a lower pin, a connecting plate, an upper pin, and a limiting plate; the lower pin and the upper pin are coaxially fixed on both sides of the connecting plate, the lower pin is inserted and matched with the limiting hole of the second columnar structure, and the upper pin is inserted and matched with the central mounting hole at the bottom of the guide vane; the limiting pin is radially fixed on the side wall of the lower pin; the limiting plate is fixed on the connecting plate and arranged at the side wall edge of the upper pin, the limiting plate is parallel to the upper pin, and the limiting plate can be closely attached to the side wall of the blade flange.

[0018] Further, the limiting plate includes a first limiting pressure plate and a second limiting pressure plate which are symmetrically and spaced apart.

[0019] Further, the number and layout angle of the limiting pins are the same as the number and layout angle of the grooves on the second columnar structure.

[0020] Further, the number of grooves on the second columnar structure is four, and they are arranged at 90°.

[0021] Further, the arc-shaped card slot on the supporting plate extends downward on the arc surface;

[0022] The inclined surface includes a long inclined surface and a short inclined surface, which are respectively connected to both ends of the arc surface and extend outward along the end of the arc surface.

[0023] Further, two mounting through holes are symmetrically provided at the bottom of the supporting plate; the guide rail assembly includes a guide rail and fixing blocks fixed at both ends of the guide rail; the fixing blocks are fixed on the bottom plate; there is a gap between the guide rail and the bottom plate; the supporting plate is connected to the guide rail through the mounting through holes at its bottom.

[0024] Further, the base support assembly, the chuck, and the supporting plate are all made of rigid metal alloy materials.

[0025] The advantages of the present utility model are:

[0026] In the present utility model, a supporting plate designed to support the blade body is provided. The top of the supporting plate is provided with an arc surface, an inclined surface, and an arc-shaped card slot that cooperate with the outer wall of the blade body to adjust the angle of the blade body, so as to change the pitch angle of the blade, and realize that the area to be modified of the blade pin hole is completely exposed at different positions, greatly improving the convenience of laser cladding of the blade pin hole of the turbine guide vane, and having a high repair efficiency.

[0027] In the present utility model, according to the angle between the damaged areas of the blade pin holes, multiple grooves are designed on the limit pin, and limit pins matching the grooves are designed on the chuck. Also, through the contact between different position areas of the blade body and the top of the supporting plate, the blade can be twisted in space along the axis, so as to quickly adjust the attitude of the blade, improve the stability of the repair quality. The present utility model is suitable for batch applications and generates great economic value. Description of the Drawings

[0028] Figure 1 : is a schematic structural diagram of the auxiliary tooling for laser cladding of the blade pin holes of the guide vane of the present utility model;

[0029] Figure 2 : is a schematic structural diagram of the base support assembly in the present utility model;

[0030] Figure 3 : is a schematic structural diagram of the chuck in the present utility model;

[0031] Figure 4 : is a schematic structural diagram of the turbine guide vane;

[0032] Figure 5 : is a schematic structural diagram of the bottom end and the flange of the turbine guide vane;

[0033] Figure 6 : is a schematic structural diagram of the pin hole at the top of the turbine guide vane;

[0034] Figure 7 : is a schematic structural diagram of the supporting plate in the present utility model;

[0035] Figure 8 : is a schematic diagram of the cooperation between the turbine guide vane in the 180° attitude and the auxiliary tooling of the present utility model;

[0036] Figure 9 : is a schematic diagram of the cooperation between the turbine guide vane in the 90° attitude and the auxiliary tooling of the present utility model.

[0037] Description of the Reference Numerals:

[0038] 1 - Base support assembly: 101 - First support plate, 102 - Rotating shaft, 103 - First fixing block, 104 - Limit pin, 105 - First guide rail, 106 - Second support plate, 107 - Third fixing block, 108 - Second fixing block, 109 - Second guide rail, 110 - Fourth fixing block; 111 - Bottom plate;

[0039] 2 - Chuck: 201 - Lower pin column, 202 - Limit pin, 203 - Connecting plate, 204 - Upper pin column, 205 - First limit pressing plate, 206 - Second limit pressing plate;

[0040] 3 - Turbine guide vane: 301 - Central mounting hole, 302 - Vane flange, 303 - Vane body, 304 - Pin hole, 30401 - Outer wall of pin hole, 30402 - End face of pin hole, 30403 - Inner wall of pin hole;

[0041] 4 - Support plate: 401 - Inclined surface, 402 - Arc surface, 403 - Arc-shaped card slot;

[0042] 5 - Laser cladding welding head. Specific implementation mode

[0043] The content of the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0044] Refer to Figures 1-6 , an auxiliary tool for laser cladding of pin holes on a guide vane, including a base support assembly 1, a chuck 2 and a support plate 4. The base support assembly 1 includes a bottom plate 111, a limit assembly arranged at one end of the bottom plate along the width direction of the bottom plate, and two guide rail assemblies arranged in parallel along the length direction of the bottom plate at the other end of the bottom plate.

[0045] The bottom plate 111 is a rectangular plate member with a flat top and legs provided at the four corners of the bottom. The limit assembly and the guide rail assembly are arranged on the top of the bottom plate.

[0046] The limit assembly includes a first support plate 101, a rotating shaft 102, a limit pin 104 and a second support plate 106; the first support plate 102 and the second support plate 106 are symmetrically and perpendicularly fixed on the bottom plate 111, the two ends of the rotating shaft 102 are respectively fixedly connected with the first support plate and the second support plate, and the limit pin 104 is installed on the rotating shaft and can rotate around the rotating shaft 102.

[0047] The limit pin 104 is composed of two vertically arranged columnar structures. A central through hole is opened on the first columnar structure for sleeving on the rotating shaft 102. After the first columnar structure is placed in the middle of the rotating shaft 102, the first columnar structure is fixedly connected with the rotating shaft 102 using strong glue. The second columnar structure is perpendicularly fixed in the middle of the side wall of the first columnar structure. A central limit hole is opened on the second columnar structure, which is clamped with the lower pin 201 of the chuck 2; a plurality of grooves are symmetrically arranged circumferentially near the end of the second columnar structure. The distribution angle of the grooves is designed and determined according to the blade wear and the position angle of the area to be repaired. In this embodiment, the four grooves are arranged at 90 degrees to each other. After assembly, the limit pin 202 on the chuck 2 is located in the groove, and the width of the groove is consistent with the outer diameter of the limit pin 202. After mutual cooperation, the rotation of the chuck is restricted, thereby realizing the limitation of the special angle of the blade.

[0048] There are two guide rail assemblies. The first fixing block 103 and the second fixing block 108 are vertically fixed on the bottom plate, and both ends of the first guide rail 105 are fixedly connected to the first fixing block 103 and the second fixing block 108 respectively.

[0049] The third fixing block 107 and the fourth fixing block 110 are vertically fixed on the bottom plate, and both ends of the second guide rail 109 are fixedly connected to the third fixing block 107 and the fourth fixing block 110 respectively.

[0050] Refer to Figure 3 , the chuck 2 includes a lower pin 201, a limit pin 202, a connecting plate 203, an upper pin 204, a first limit pressing plate 205 and a second limit pressing plate 206. The lower pin 201 and the upper pin are coaxially fixed on both sides of the limit plate 203. The lower pin 201 is in clamping fit with the limit hole of the second columnar structure on the limit pin 104, and the upper pin is clamped in the central mounting hole at the bottom of the guide vane. Four limit pins 202 are radially installed on the side wall of the lower pin 201 and can be engaged with the groove on the limit pin 104 to limit the axial rotation of the vane. The outer diameter of the limit pin 202 is the same as the width of the groove, and it is a small clearance fit.

[0051] The upper pin 204 is clamped in the central mounting hole 301 on the end face of the turbine guide vane 3 with a small clearance fit to realize the connection between the vane and the chuck. The central mounting hole 301 is located on the end face of the end with the vane flange.

[0052] The first limit pressing plate 205 and the second limit pressing plate 206 are fixedly spaced on the side wall edge of the connecting plate 203 and are on the same side of the connecting plate as the upper pin and parallel to the axis of the upper pin 204. The first limit pressing plate and the second limit pressing plate can be closely attached to the side wall of the vane flange 302 to press the vane and prevent the position of the vane from changing during the welding repair process. The chuck 2 is used to fix the turbine guide vane on the auxiliary tooling and limit the torsion of the vane itself.

[0053] Refer to Figures 4-6 , which is a schematic diagram of the vane structure. The vane includes a vane bottom structure, a blade body 303 and a vane top structure. A central mounting hole 301 is provided in the center of the vane bottom structure for clamping and fitting with the upper pin 204 of the chuck. Vane flanges 302 are symmetrically provided on both sides of the vane bottom structure, and the limit plate on the chuck 2 can be pressed against the vane flange. The blade body 303 is a special-shaped surface.

[0054] Refer to Figure 7The support plate 4 is a plate, and two mounting holes are symmetrically provided on the lower end thereof, for connecting the support plate 4 to the first guide rail 105 and the second guide rail 109. The support plate 4 can slide along the first guide rail and the second guide rail, and the relative angle between the vertically downward laser cladding head and the blade pin hole wall is changed by changing the contact position between the support plate and the blade body 303, so that the damaged part of the blade pin hole is effectively exposed in the laser cladding accessible area.

[0055] The support plate 4 has an arc surface 402 at the upper end, and an arc-shaped slot 403 is extended downward on the arc surface of the support plate 4. Both ends of the arc surface 402 have inclined surfaces 401. The arc surface 402, arc slot 404 and inclined surface 401 are designed according to the special-shaped surface of the outer wall of the blade body, and can cooperate with the three special-shaped parts of the outer wall of the blade body, so that the outer wall, end face and inner wall of the blade pin hole that need to be repaired by cladding can be exposed to the accessible area of laser cladding at 0°, 90° and 180°. The 0° posture is defined as the blade body and the arc surface on the support plate fit together, the 90° posture is the blade body and the arc slot on the support plate fit together, and the 180° posture is the blade body and the arc surface on the support plate fit together at two inclined surfaces. Figure 8 As shown, the turbine guide vane is in a 180° posture and cooperates with the auxiliary tooling of the utility model. Figure 9 The figure shows the turbine guide vane in a 90° posture in cooperation with the auxiliary tooling of the utility model.

[0056] In order to save materials during processing, large gaps are provided on both sides of the supporting plate.

[0057] The base support assembly 1, the chuck 2 and the support plate 4 are all made of rigid metal alloy materials, such as steel and copper, which can better support the weight of the blade on the one hand and transfer part of the heat generated by the laser cladding process on the other hand.

[0058] Changing the spatial standing posture of the turbine guide vane: moving the support plate 4 on the guide rail, adjusting the contact position between the support plate and the blade body, realizing the spatial standing state of the turbine guide vane within a deflection of 90°, and realizing the angle adjustment between the vertically downward laser cladding head and the pin hole wall, thereby increasing the repair range of the pin hole wall that the laser cladding head can reach.

[0059] Spatial twisting of turbine guide vanes:

[0060] Manually lift the combination of the turbine guide vane and the chuck to release it from the restraining effect of the support plate, partially pull out the lower pin 201 on the chuck, and make the limit pin disengage from the groove on the limit pin; after twisting the blade body, re-insert the lower pin 201 into the limit hole of the limit pin, and make the limit pin match the groove of the limit pin;

[0061] Under the action of its own gravity, the twisted turbine guide vane naturally contacts the supporting plate, realizing the deflection of the area to be repaired of the pin hole of the turbine guide vane.

[0062] The process of laser cladding repair of the pin hole on the guide vane using the auxiliary tooling of the present utility model is as follows:

[0063] 1. Manually rotate the limit pin 104 on the base support assembly so that the open end of the groove of the limit pin is in the vertically upward state. Insert the lower pin column 201 of the chuck 2 into the limit hole of the limit pin 104, and the limit pin 202 is clamped in the groove at the end of the limit pin.

[0064] 2. Insert the upper pin column 204 of the chuck 2 into the central mounting hole 301 at the bottom of the turbine guide vane 3 to be repaired. At the same time, make the first limit pressing plate 205 and the second limit pressing plate 206 in close contact with the outer wall of the blade flange 302.

[0065] 3. Manually rotate the combination of the limit pin 104, the chuck 2 and the turbine guide vane 3 downward so that it slowly descends until the blade body 303 is in close contact with the arc surface 402 of the supporting plate 4 under the action of gravity. Move the position of the supporting plate 4 on the first guide rail 105 and the second guide rail 109 to realize the adjustment of the included angle between the pin hole wall and the vertical direction for laser cladding. At this time, with the turbine guide vane in the 0° attitude, the outer wall, end face and inner wall of the pin hole can be repaired by additive manufacturing using the laser cladding welding head 5.

[0066] 4. After the above repair is completed, manually rotate the combination of the limit pin 104, the chuck 2 and the turbine guide vane 3 to make it in the vertical state. Pull out the combination of the chuck 2 and the turbine guide vane 3 vertically upward so that the lower pin column 201 of the chuck 2 moves upward but does not completely break away from the restraint of the limit pin 104, and the limit pin 202 breaks away from the restraint of the groove on the limit pin 104; then twist the combination of the chuck and the turbine guide vane by 90°; reinsert the lower pin column 201 of the chuck into the limit hole of the limit pin 104, and at the same time place the limit pin 202 in the groove of the limit pin 104;

[0067] Manually rotate the combination of the limit pin 104, the chuck 2 and the turbine guide vane 3 downward so that it slowly descends until the blade body 303 of the turbine guide vane 3 is stuck in the arc-shaped card slot 403 of the supporting plate 4 under the action of gravity. At this time, with the turbine guide vane in the 90° attitude, the outer wall, end face and inner wall of the pin hole can be repaired by additive manufacturing using the laser cladding welding head 5.

[0068] 5. After completing the above repairs, manually rotate the combination of the limit pin 104, the chuck 2 and the turbine guide vane 3 so that it is in a vertical state, and vertically pull out the combination of the chuck 2 and the turbine guide vane 3 upward, so that the lower pin column 201 of the chuck 2 moves upward but does not completely break away from the restraint of the limit pin 104, and the limit pin 202 breaks away from the restraint of the groove on the limit pin 104; then twist the combination of the chuck and the turbine guide vane by 90°; reinsert the lower pin column 201 of the chuck into the limit hole of the limit pin 104, and at the same time place the limit pin 202 in the groove of the limit pin 104;

[0069] Manually rotate the combination of the limit pin 104, the chuck 2 and the turbine guide vane 3 downward so that it slowly descends until the blade body 303 closely adheres to the two inclined surfaces 401 on the support plate 4 under the action of gravity. At this time, when the turbine guide vane is in the 180° posture, the additive repair of the outer wall, end face and inner wall of the pin hole can be carried out by using the laser cladding head 5.

[0070] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present invention.

Claims

1. An auxiliary tooling for laser cladding of pin holes on a guide vane, characterized in that: It includes a base support assembly, a chuck, and a supporting plate; The base support assembly includes a bottom plate, a limiting assembly disposed at one end of the top of the bottom plate along the width direction of the bottom plate, and two guide rail assemblies disposed in parallel along the length direction of the bottom plate at the other end of the top of the bottom plate; The limiting assembly includes two support plates vertically and parallelly fixed on the bottom plate, a rotating shaft, and a limiting pin; The rotating shaft is rotatably installed on the support plate; One end of the limiting pin is fixedly connected to the middle of the side wall of the rotating shaft, and a limiting hole is opened at the other end; the axis of the limiting hole is perpendicular to the axis of the rotating shaft; several grooves are circumferentially provided at the port of the limiting hole; Both ends of the chuck are respectively clamped in the limiting hole of the limiting pin and the central mounting hole at the bottom of the guide vane blade; A limiting pin is radially provided at one end of the chuck connected to the limiting pin, and the limiting pin can be fitted in the groove of the limiting pin; The bottom of the supporting plate is connected to the guide rail assembly and can slide along the guide rail assembly; The top of the supporting plate is provided with an arc surface, an inclined surface respectively matching the special-shaped surface of the side wall of the blade body, and an arc-shaped card slot opened on the arc surface, and can expose the pin hole corresponding to the area to be repaired when the side wall of the blade body contacts the arc surface, the inclined surface or the arc-shaped card slot respectively.

2. The auxiliary tooling according to claim 1, characterized in that: The limiting pin is composed of two vertically arranged first columnar structures and a second columnar structure. A central through hole is opened on the first columnar structure, and the first columnar structure is nested on the rotating shaft and fixedly connected; One end of the second columnar structure is vertically fixed in the middle of the outer wall of the first columnar structure, and a limiting hole is opened along the axis at the other end; The groove is arranged at the port of the other end of the second columnar structure.

3. The auxiliary tooling according to claim 2, wherein: The first columnar structure and the rotating shaft are fixed by strong glue.

4. The auxiliary tooling according to claim 2, wherein: The chuck includes a lower pin column, a connecting plate, an upper pin column, and a limiting plate; the lower pin column and the upper pin column are coaxially fixed on both sides of the connecting plate. The lower pin column is inserted and matched with the limiting hole of the second columnar structure, and the upper pin column is inserted and matched with the central mounting hole at the bottom of the guide vane blade; The limiting pin is radially fixed on the side wall of the lower pin column; The limiting plate is fixed on the connecting plate and is arranged at the side wall edge of the upper pin column. The limiting plate is parallel to the upper pin column, and the limiting plate can be closely attached to the side wall of the blade flange.

5. The auxiliary tooling according to claim 4, characterized in that: The limiting plate includes a first limiting pressing plate and a second limiting pressing plate which are symmetrically and spaced apart.

6. The auxiliary tooling according to claim 5, characterized in that: The number and layout angle of the limiting pins are the same as the number and layout angle of the grooves on the second columnar structure.

7. The auxiliary tooling according to claim 6, characterized in that: The number of grooves on the second columnar structure is four, and they are arranged at 90°.

8. The auxiliary tooling according to any one of claims 1-7, characterized in that: The arc-shaped card slot on the supporting plate extends downward on the arc surface; The inclined surface includes a long inclined surface and a short inclined surface, which are respectively connected to both ends of the arc surface and extend outward along the end of the arc surface.

9. The auxiliary tooling according to claim 8, wherein: Two mounting through holes are symmetrically provided at the bottom of the supporting plate; The guide rail assembly includes a guide rail and fixing blocks fixed at both ends of the guide rail; The fixing blocks are fixed on the bottom plate; there is a gap between the guide rail and the bottom plate; The supporting plate is connected to the guide rail through the mounting through holes at its bottom.

10. The auxiliary tooling according to claim 9, wherein: The base support assembly, the chuck, and the supporting plate are all made of rigid metal alloy materials.

Images