Universal combined tool for boring and milling angle valve body

Abstract

The utility model relates to a universal combined tool for boring and milling an angle valve body. The device comprises a foundation bottom plate, a nut for a T-shaped groove, a first hexagon socket cap screw, a flat key, an internal thread cylindrical pin, a second hexagon socket cap screw, a third hexagon socket cap screw, a supporting seat, a hexagon head bolt, a stand column, a pressing plate, a shoulder hexagon nut, a full-tooth screw rod, a base, a backup plate, a V-shaped block, a top block, a foundation base, a rear supporting block and a front supporting block. The tool for clamping the workpiece has the advantages of being wide in universality, stable in workpiece machining quality and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of tooling fixtures and specifically discloses a universal combined tooling for boring and milling an angle valve body. Background Art

[0002] Valves are widely used in the development of various industrial economies in the contemporary world and play a vital role. There are many types of valves, among which the angle valve, also known as the stop angle valve, is a valve that controls the flow of the medium by rising and falling the valve core. It has the characteristics of simple structure, easy maintenance, and reliable sealing. It is one of the important control components of the pipeline system. Angle valves are generally composed of valve body, valve cover, valve core, handle, seal and other parts. The valve body of industrial angle valves is complex in shape, generally composed of three-end outer circles, and the blank is usually manufactured by casting or forging. The valve body is usually processed by lathes and boring and milling machines. The tooling of boring and milling machines is usually used in the following ways:

[0003] Temporary tooling: The valve body contour is in direct contact with the workbench, the upper and lower horizontal adjustment is done by inserting pads, the left and right horizontal adjustment is done by moving the workpiece position, and finally the workpiece is fixed by a pressure plate. This tooling method takes a long time to calibrate and determine the center of the workpiece, and there are hidden dangers of instability during processing due to the lack of limit stops. Once the parts are processed in batches, it is time-consuming and labor-intensive, and the processing quality is unstable.

[0004] Special tooling: Special tooling is designed according to the shape and size of the outer contour, and the center height and horizontal position do not need to be adjusted. Although this tooling method is reliable and has stable quality, there are many types of valves according to pipeline specifications and installation methods, which results in high tooling investment costs and difficulties in on-site storage and management.

[0005] The above clamping methods seriously affect the production efficiency, quality and manufacturing costs of the enterprise. Summary of the invention

[0006] The utility model aims to overcome the shortcomings in the prior art and provide a universal combined tooling for boring and milling an angle valve body with wide versatility and stable workpiece processing quality.

[0007] According to the technical solution provided by the utility model, the universal combined tooling for boring and milling the angle valve body includes a basic bottom plate, a nut for a T-slot, a first hexagon socket head screw, a flat key, an internal thread cylindrical pin, a second hexagon socket head screw, a third hexagon socket head screw, a support seat, a hexagon head bolt, a column, a pressure plate, a shouldered hexagonal nut, a full-thread screw, a base, a backing plate, a V-block, a top block, a basic base, a rear support block and a front support block;

[0008] T-slots arranged in an array are provided on the upper surface of the base plate, and the support seat, the base and the base base are fixed to the upper surface of the base plate by a third hexagon socket head screw and a T-slot nut located in the T-slot, the base base is located on the right side of the base, and the support seat is located on the front side of the base; two full-thread screws are installed between the base and the base by T-slot nuts, and waist-shaped holes for pressing plates are provided on the two pressing plates, and the upper ends of the full-thread screws pass through the corresponding waist-shaped holes for pressing plates, and washers and shouldered hexagonal nuts are installed on the full-thread screws above the pressing plates;

[0009] A column is provided on the base bottom plate outside each full-thread screw rod, a bolt hole is vertically arranged on the top of the column, and a hexagonal bolt is installed in the bolt hole; a bolt hole is vertically arranged on the top of the support seat, and a hexagonal bolt is installed in the bolt hole;

[0010] A base keyway with a threaded hole is provided on the lower surface of the base, and the length direction of the base keyway is the same as the length direction of the T-slot; a first basic base keyway with a threaded hole is provided on the lower surface of the basic base, and the length direction of the first basic base keyway is the same as the length direction of the T-slot; a flat key is fixed in the base keyway and the first basic base keyway by a first hexagon socket head screw, and the lower half of the flat key is embedded in the T-slot;

[0011] A rear support block cylindrical step countersunk hole is opened on the rear support block, a front support block cylindrical step countersunk hole is opened on the front support block, and a rear support block array threaded hole and a front support block array threaded hole are opened on the basic base. The rear support block is fixed to the upper surface of the basic base by installing a second hexagon socket cylindrical head screw in the rear support block cylindrical step countersunk hole and the rear support block array threaded hole, and the front support block is fixed to the upper surface of the basic base by installing a second hexagon socket cylindrical head screw in the front support block cylindrical step countersunk hole and the front support block array threaded hole. The rear support block and the front support block are arranged at intervals, and a rear support block with a stepped inclined surface is provided on the front side of the upper end portion of the rear support block, and a front support block with a stepped inclined surface is provided on the rear side of the upper end portion of the front support block, and the front support block with a stepped inclined surface cooperates with the rear support block with a stepped inclined surface;

[0012] A base cylindrical countersunk hole and a base pin hole are provided on the base, a back plate threaded hole and a back plate pin hole are provided on the back plate, a cylindrical pin is installed in the base pin hole and the back plate pin hole, a second hexagon socket cylindrical head screw is installed in the base cylindrical countersunk hole and the back plate threaded hole to fix the back plate to the upper surface of the base, a V-shaped block waist-shaped step countersunk hole is provided on the V-block, a top block waist-shaped step countersunk hole is provided on the top block, a V-shaped block threaded hole and a top block threaded hole are provided on the back plate, a second hexagon socket cylindrical head screw is installed in the V-shaped block waist-shaped step countersunk hole and the V-shaped block threaded hole to fix the V-shaped block to the left side of the back plate, a second hexagon socket cylindrical head screw is installed in the top block waist-shaped step countersunk hole and the top block threaded hole to fix the top block to the right side of the back plate, and a horizontally arranged bolt hole is provided at the upper end of the top block, and a hexagon head bolt is installed in the bolt hole.

[0013] Preferably, basic base key slots for positioning the rear support block and basic base key slots for positioning the front support block are arranged in an array on the upper surface of the basic base, the length direction of the basic base key slots for positioning the rear support block is the same as the length direction of the T-slot, and the length direction of the basic base key slots for positioning the front support block is the same as the length direction of the T-slot.

[0014] Preferably, a rear support block keyway with a threaded hole is opened on the lower surface of the rear support block, the length direction of the rear support block keyway is the same as the length direction of the T-slot, and a flat key is fixed in the rear support block keyway by a first hexagon socket cylindrical head screw, and the lower half of the flat key is embedded in the keyway of the base base for positioning the rear support block.

[0015] Preferably, a front support block keyway with a threaded hole is opened on the lower surface of the front support block, the length direction of the front support block keyway is the same as the length direction of the T-slot, and a flat key is fixed in the front support block keyway by a first hexagon socket cylindrical head screw, and the lower half of the flat key is embedded in the keyway of the base base for positioning the front support block.

[0016] Preferably, a left side groove and a right side groove of the back plate are respectively provided on the left side and the right side groove of the back plate, and the length directions of the left side groove and the right side groove of the back plate are both vertical directions. A V-shaped block protrusion is provided on the right side surface of the V-shaped block to cooperate with the left side groove of the back plate, and the length direction of the V-shaped block protrusion is vertical direction. The V-shaped block protrusion cooperates with the top block and the right side groove of the back plate.

[0017] Preferably, a waist-shaped hole is opened on the support seat, the third hexagon socket head screw passes downward through the waist-shaped hole of the support seat and the T-slot nut is installed on the lower end of the third hexagon socket head screw, and the support seat is fixed to the upper surface of the base plate through the third hexagon socket head screw and the T-slot nut.

[0018] The use of the tooling of the utility model for clamping workpieces has the advantages of wide versatility and stable workpiece processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1a It is the front view of the utility model.

[0020] Figure 1b It is a left view of the utility model.

[0021] Figure 1c It is a top view of the utility model.

[0022] Figure 2a It is one of the three-dimensional diagrams of the present utility model.

[0023] Figure 2b It is one of the three-dimensional diagrams of the present utility model.

[0024] Figure 3a It is a front view of the basic base plate in the utility model.

[0025] Figure 3b It is a top view of the basic bottom plate in the utility model.

[0026] Figure 4a It is a front view of a T-slot nut in the utility model.

[0027] Figure 4b It is a top view of the T-slot nut in the utility model.

[0028] Figure 5a It is a front view of the support seat in the utility model.

[0029] Figure 5b It is a top view of the support seat in the utility model.

[0030] Figure 6a It is a front view of the base in the utility model.

[0031] Figure 6b It is a top view of the base in the utility model.

[0032] Figure 7a It is a front view of the backing plate in the utility model.

[0033] Figure 7b It is a top view of the backing plate in the present utility model.

[0034] Figure 8a It is a front view of the V-shaped block in the utility model.

[0035] Figure 8b It is a top view of the V-shaped block in the utility model.

[0036] Figure 9a It is a front view of the top block in the utility model.

[0037] Figure 9b It is a left view of the top block in the utility model.

[0038] Fig.10a It is a bottom view of the basic base in the utility model.

[0039] Fig.10b It is a front view of the basic base in the utility model.

[0040] Fig.10c It is a top view of the basic base in the utility model.

[0041] Fig.11a It is a bottom view of the rear support block in the utility model.

[0042] Fig.11b It is a right side view of the rear support block in the utility model.

[0043] Fig.11c It is a front view of the rear support block in the utility model.

[0044] Fig.12a It is a bottom view of the front support block in the utility model.

[0045] Figure 12b It is a front view of the front support block in the utility model.

[0046] Fig.12c It is a left view of the front support block in the utility model.

[0047] Fig.13a It is one of the three-dimensional diagrams of the use state of the utility model.

[0048] Fig.13b It is one of the three-dimensional diagrams of the use state of the utility model. DETAILED DESCRIPTION

[0049] The utility model is further described below in conjunction with specific embodiments.

[0050] A universal combined tooling for boring and milling angle valve bodies, such as Figure 1a-Figure 12c As shown, it includes a base plate 1, a nut for a T-slot 2, a first hexagon socket head screw 3, a flat key 4, an internal thread cylindrical pin 5, a second hexagon socket head screw 6, a third hexagon socket head screw 7, a support seat 8, a hexagon head bolt 9, a column 10, a pressure plate 11, a shouldered hexagonal nut 12, a full-thread screw 13, a base 14, a backing plate 15, a V-shaped block 16, a top block 17, a base base 18, a rear support block 19 and a front support block 20;

[0051] The upper surface of the base plate 1 is provided with T-slots 1a arranged in an array, and the support seat 8, the base 14 and the basic base 18 are fixed to the upper surface of the base plate 1 by the third hexagon socket head screw 7 and the T-slot nut 2 located in the T-slot 1a. The basic base 18 is located on the right side of the base 14, and the support seat 8 is located on the front side of the base 14; two full-thread screws 13 are installed between the basic base 18 and the base 14 by the T-slot nut 2, and the two pressing plates 11 are provided with pressing plate waist holes 11a, and the upper ends of the full-thread screws 13 pass through the corresponding pressing plate waist holes 11a, and the full-thread screws 13 above the pressing plate 11 are installed with gaskets and shouldered hexagonal nuts 12;

[0052] A column 10 is provided on the base bottom plate 1 outside each full-thread screw 13, and a bolt hole is vertically arranged at the top of the column 10, and a hexagonal head bolt 9 is installed in the bolt hole; a vertically arranged bolt hole is opened on the top of the support seat 8, and a hexagonal head bolt 9 is installed in the bolt hole;

[0053] A base keyway 14a with a threaded hole is provided on the lower surface of the base 14, and the length direction of the base keyway 14a is the same as the length direction of the T-slot 1a. A first basic base keyway 18a with a threaded hole is provided on the lower surface of the basic base 18, and the length direction of the first basic base keyway 18a is the same as the length direction of the T-slot 1a. A flat key 4 is fixed in both the base keyway 14a and the first basic base keyway 18a by a first hexagon socket head screw 3, and the lower half of the flat key 4 is embedded in the T-slot 1a.

[0054] A rear support block cylindrical step countersunk hole is provided on the rear support block 19, a front support block cylindrical step countersunk hole is provided on the front support block 20, and a rear support block array threaded hole and a front support block array threaded hole are provided on the basic base 18. The rear support block 19 is fixed to the upper surface of the basic base 18 by installing a second hexagon socket cylindrical head screw 6 in the rear support block cylindrical step countersunk hole and the rear support block array threaded hole. The front support block 20 is fixed to the upper surface of the basic base 18 by installing a second hexagon socket cylindrical head screw 6 in the front support block cylindrical step countersunk hole and the front support block array threaded hole. The rear support block 19 and the front support block 20 are arranged at intervals, and a rear support block stepped inclined surface 19b is provided on the front side of the upper end portion of the rear support block 19, and a front support block stepped inclined surface 20b is provided on the rear side of the upper end portion of the front support block 20, and the front support block stepped inclined surface 20b cooperates with the rear support block stepped inclined surface 19b;

[0055] A base cylindrical countersunk hole and a base pin hole are provided on the base 14, a backing plate threaded hole and a backing plate pin hole are provided on the backing plate 15, a cylindrical pin 5 is installed in the base pin hole and the backing plate pin hole, a second hexagon socket head screw 6 is installed in the base cylindrical countersunk hole and the backing plate threaded hole to fix the backing plate 15 on the upper surface of the base 14, a V-shaped block waist-shaped step countersunk hole is provided on the V-shaped block 16, a top block waist-shaped step countersunk hole is provided on the top block 17, and a V-shaped block waist-shaped step countersunk hole is provided on the backing plate 15. A V-block threaded hole and a top block threaded hole are provided on the top. A second hexagon socket head screw 6 is installed in the waist-shaped step countersunk hole of the V-block and the threaded hole of the V-block to fix the V-block 16 to the left side of the support plate 15. A second hexagon socket head screw 6 is installed in the waist-shaped step countersunk hole of the top block and the threaded hole of the top block to fix the top block 17 to the right side of the support plate 15. A horizontally arranged bolt hole is provided at the upper end of the top block 17, and a hexagon head bolt 9 is installed in the bolt hole.

[0056] The upper surface of the basic base 18 is provided with basic base key grooves 18b for positioning the rear support block arranged in an array and basic base key grooves 18c for positioning the front support block arranged in an array. The length direction of the basic base key grooves 18b for positioning the rear support block is the same as the length direction of the T-slot 1a, and the length direction of the basic base key grooves 18c for positioning the front support block is the same as the length direction of the T-slot 1a.

[0057] A rear support block keyway 19a with a threaded hole is provided on the lower surface of the rear support block 19, and the length direction of the rear support block keyway 19a is the same as the length direction of the T-slot 1a. A flat key 4 is fixed in the rear support block keyway 19a by a first hexagon socket cylindrical head screw 3, and the lower half of the flat key 4 is embedded in the base keyway 18b for positioning the rear support block.

[0058] A front support block keyway 20a with a threaded hole is opened on the lower surface of the front support block 20, and the length direction of the front support block keyway 20a is the same as the length direction of the T-slot 1a. A flat key 4 is fixed in the front support block keyway 20a by a first hexagon socket cylindrical head screw 3, and the lower half of the flat key 4 is embedded in the base keyway 18c for positioning the front support block.

[0059] A left side groove 15a and a right side groove 15b are respectively provided on the left side and the right side of the back plate 15, and the length directions of the left side groove 15a and the right side groove 15b of the back plate are both vertical directions. A V-shaped block convex 16a is provided on the right side of the V-shaped block 16 to cooperate with the left side groove 15a of the back plate, and the length direction of the V-shaped block convex 16a is vertical direction. The V-shaped block convex 16a and the top block 17 cooperate with the right side groove 15b of the back plate.

[0060] A support seat waist-shaped hole 8a is opened on the support seat 8, the third hexagon socket cylindrical head screw 7 passes downward through the support seat waist-shaped hole 8a and the T-slot nut 2 is installed on the lower end of the third hexagon socket cylindrical head screw 7, and the support seat 8 is fixed to the upper surface of the base plate 1 through the third hexagon socket cylindrical head screw 7 and the T-slot nut 2.

[0061] like Fig.13a and Fig.13b As shown, the utility model loosens the third hexagon socket head screw 7 to adjust the distance between the basic base 18 and the base 14 according to the distance between the left end face of the left outer circle 21a of the angle valve body 21 and the right end face of the right outer circle 21b. Tighten the third hexagon socket head screw 7 to fix the basic base 18 and the base 14. Loosen the second hexagon socket head screw 6 to adjust the distance between the rear support block 19 and the front support block 20 according to the diameter of the right outer circle 21b, and the digital scale lines of the basic base 18 corresponding to the scale lines of the rear support block 19 and the front support block 20 are consistent, and tighten the second hexagon socket head screw 6 to fix the rear support block 19 and the front support block 20.

[0062] Install the angle valve body 21, with the right outer circle 21b and its back respectively fitting the rear support block with stepped inclined surface 19b on the rear support block 19 and the front support block with stepped inclined surface 20b on the front support block 20. The left outer circle 21a fits the inclined surfaces on both sides of the V-shaped block 16. Loosen the third hexagonal cylindrical head screw 7 that locks the support seat 8, adjust the position of the support seat 8 so that the hexagonal head bolt 9 on it supports the rear outer circle 21c of the workpiece angle valve body 21, and tighten the third hexagonal cylindrical head screw 7 to fix the support seat 8.

[0063] Correct the center height of the rear outer circle 21c of the angle valve body 21: loosen the second hexagon socket head screw 6 that locks the V-block 16, screw the hexagon head bolt 9 on the base 14 to adjust the height of the V-block 16, and indirectly adjust the center height of the left outer circle 21a. Lock the second hexagon socket head screw 6 to fix the V-block 16. Screw the hexagon head bolt 9 on the support seat 8 to adjust the center height of the outer circle 21c, and finally make the left outer circle 21a, the right outer circle 21b and the rear outer circle 21c of the angle valve body 21 consistent. Loosen the third hexagon socket head screw 7 that locks the top block 17, adjust the height of the top block 17 so that the hexagon head bolt 9 on it is aligned with the right end face of the left outer circle 21b, tighten the third hexagon socket head screw 7 to fix the top block 17, and screw the hexagon head bolt 9 to horizontally press the right end face of the left outer circle 21b. Adjust the positions of the full-thread screw 13 and the stud 10 so that one end of the pressure plate 11 fits against the surface of the angle valve body 21 of the workpiece, and the other end of the pressure plate 11 fits against the hexagonal bolt 9 on the column 10, adjust the height of the hexagonal bolt 9 to make the pressure plate 11 horizontal, and finally screw on the shouldered hexagonal nut 12 to drive the pressure plate 11 to vertically press the angle valve body 21.

[0064] The working principle of the utility model is as follows:

[0065] The distance between the left end face of the left outer circle 21a of the angle valve body 21 and the right end face of the right outer circle 21b is used to adjust the distance between the base 18 and the base 14. The positions of the rear support block 19 and the front support block 20 are adjusted according to the diameter of the right outer circle 21b. The rear support block 19 and the front support block 20 are combined into a fixed V-shaped structure for positioning the right outer circle 21b. The V-shaped block 16 is used as a movable V-shaped positioning for adjusting the center height of the left outer circle 21a. The hexagonal head bolt 9 on the support seat 8 is used as a support point for adjusting the center height of the rear outer circle 21c, thereby ensuring that the outer circle center heights of the left outer circle 21a, the right outer circle 21b and the rear outer circle 21c of the angle valve body 21 are consistent, and the rear support block 19 and the front support block 20 ensure that the right outer circle 21b and the outer outer circle 21a are on the same axis. The rear support block with stepped inclined surface 19b on the rear support block 19 and the front support block with stepped inclined surface 20b on the front support block 20 are used as the back side of the positioning right outer circle 21b. The hexagonal head bolt 9 on the top block 17 is screwed in to press the back side of the left outer circle 21a of the workpiece, clamping the angle valve body 21 in the horizontal direction and ensuring the clamping position of the angle valve body 21 each time. Tightening the shouldered hexagonal nut 12 drives the pressure plate 11 to vertically press the workpiece 21, and finally the workpiece is completely fixed on the tooling.

Claims

1. A universal combined tooling for boring and milling an angle valve body, characterized by: It comprises a base plate (1), a nut for a T-slot (2), a first hexagon socket head screw (3), a flat key (4), an internal thread cylindrical pin (5), a second hexagon socket head screw (6), a third hexagon socket head screw (7), a support seat (8), a hexagon head bolt (9), a column (10), a pressure plate (11), a shouldered hexagonal nut (12), a full-thread screw (13), a base (14), a backing plate (15), a V-shaped block (16), a top block (17), a base base (18), a rear support block (19) and a front support block (20); The upper surface of the base plate (1) is provided with T-slots (1a) arranged in an array, and the support seat (8), the base (14) and the base base (18) are fixed to the upper surface of the base plate (1) by means of a third hexagon socket head screw (7) and a T-slot nut (2) located in the T-slot (1a), wherein the base (18) is located on the right side of the base (14), and the support seat (8) is located in front of the base (14); two full-thread screws (13) are installed between the base base (18) and the base (14) by means of the T-slot nut (2), and a pressure plate waist hole (11a) is provided on the two pressure plates (11), and the upper end of the full-thread screw (13) passes through the corresponding pressure plate waist hole (11a), and a gasket and a shouldered hexagonal nut (12) are installed on the full-thread screw (13) above the pressure plate (11); A column (10) is provided on the base bottom plate (1) outside each full-thread screw (13), a bolt hole is vertically arranged at the top of the column (10), and a hexagonal head bolt (9) is installed in the bolt hole; a vertically arranged bolt hole is opened at the top of the support seat (8), and a hexagonal head bolt (9) is installed in the bolt hole; A base keyway (14a) with a threaded hole is provided on the lower surface of the base (14), and the length direction of the base keyway (14a) is the same as the length direction of the T-slot (1a); a first basic base keyway (18a) with a threaded hole is provided on the lower surface of the basic base (18), and the length direction of the first basic base keyway (18a) is the same as the length direction of the T-slot (1a); a flat key (4) is fixed in both the base keyway (14a) and the first basic base keyway (18a) by a first hexagon socket head screw (3), and the lower half of the flat key (4) is embedded in the T-slot (1a); A rear support block cylindrical step countersunk hole is formed on the rear support block (19), a front support block cylindrical step countersunk hole is formed on the front support block (20), a rear support block array threaded hole and a front support block array threaded hole are formed on the base base (18), and the rear support block (19) is fixed to the upper surface of the base base (18) by installing a second hexagon socket head screw (6) in the rear support block cylindrical step countersunk hole and the rear support block array threaded hole, and the front support block array threaded hole is fixed to the rear support block (19) by installing a second hexagon socket head screw (6) in the rear support block cylindrical step countersunk hole and the rear support block array threaded hole. A second hexagon socket head screw (6) is installed in the row of threaded holes to fix the front support block (20) on the upper surface of the base base (18); the rear support block (19) and the front support block (20) are arranged at an interval; a rear support block with a stepped inclined surface (19b) is provided on the front side of the upper end of the rear support block (19); a front support block with a stepped inclined surface (20b) is provided on the rear side of the upper end of the front support block (20); the front support block with a stepped inclined surface (20b) cooperates with the rear support block with a stepped inclined surface (19b); A base cylindrical countersunk hole and a base pin hole are formed on the base (14), a backing plate threaded hole and a backing plate pin hole are formed on the backing plate (15), a cylindrical pin (5) is installed in the base pin hole and the backing plate pin hole, a second hexagon socket head screw (6) is installed in the base cylindrical countersunk hole and the backing plate threaded hole to fix the backing plate (15) to the upper surface of the base (14), a V-shaped block waist-shaped step countersunk hole is formed on the V-shaped block (16), a top block waist-shaped step countersunk hole is formed on the top block (17), and a cylindrical pin (5) is installed in the base pin hole and the backing plate pin hole. ) is provided with a V-block threaded hole and a top block threaded hole, a second hexagon socket head screw (6) is installed in the waist-shaped step countersunk hole of the V-block and the threaded hole of the V-block to fix the V-block (16) to the left side of the support plate (15), a second hexagon socket head screw (6) is installed in the waist-shaped step countersunk hole of the top block and the threaded hole of the top block to fix the top block (17) to the right side of the support plate (15), and a horizontally arranged bolt hole is provided at the upper end of the top block (17), and a hexagon head bolt (9) is installed in the bolt hole.

2. The universal assembly tool for boring and milling an angle valve body according to claim 1, characterized in that: The upper surface of the basic base (18) is provided with basic base keyways (18b) for positioning the rear support block arranged in an array and basic base keyways (18c) for positioning the front support block arranged in an array, the length direction of the basic base keyways (18b) for positioning the rear support block being the same as the length direction of the T-shaped slot (1a), and the length direction of the basic base keyways (18c) for positioning the front support block being the same as the length direction of the T-shaped slot (1a).

3. The universal assembly tool for boring and milling an angle valve body as claimed in claim 2, characterized in that: The lower surface of the rear support block (19) is provided with a rear support block keyway (19a) with a threaded hole, the length direction of the rear support block keyway (19a) being the same as the length direction of the T-shaped slot (1a), a flat key (4) being fixed in the rear support block keyway (19a) by a first hexagon socket head screw (3), and the lower half of the flat key (4) being embedded in a base keyway (18b) for positioning the rear support block.

4. The universal assembly tool for boring and milling an angle valve body as claimed in claim 2, characterized in that: The lower surface of the front support block (20) is provided with a front support block keyway (20a) with a threaded hole, the length direction of the front support block keyway (20a) being the same as the length direction of the T-shaped slot (1a), a flat key (4) being fixed in the front support block keyway (20a) by a first hexagon socket head screw (3), and the lower half of the flat key (4) being embedded in a base keyway (18c) for positioning the front support block.

5. The universal assembly tool for boring and milling an angle valve body according to claim 1, characterized in that: The left side and right side of the backing plate (15) are respectively provided with a backing plate left groove (15a) and a backing plate right groove (15b), and the length directions of the backing plate left groove (15a) and the backing plate right groove (15b) are both vertical directions. The right side of the V-shaped block (16) is provided with a V-shaped block protrusion (16a) that cooperates with the backing plate left groove (15a), and the length direction of the V-shaped block protrusion (16a) is vertical. The V-shaped block protrusion (16a) cooperates with the backing plate right groove (15b). The top block (17) cooperates with the backing plate right groove (15b).

6. The universal assembly tool for boring and milling an angle valve body according to claim 1, characterized in that: A support seat waist-shaped hole (8a) is provided on the support seat (8), the third hexagon socket head screw (7) passes downward through the support seat waist-shaped hole (8a) and the T-slot nut (2) is installed at the lower end of the third hexagon socket head screw (7), and the support seat (8) is fixed to the upper surface of the base plate (1) through the third hexagon socket head screw (7) and the T-slot nut (2).

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