A hydraulic valve body fixture

Abstract

The utility model relates to hydraulic equipment technical field especially relates to a frock clamp of hydraulic valve body, including rotatable fixed on the base of machining platform, fixed on the base box, track assembly, fixed clamp block and movable clamp block. Box multiple sides are equipped with track assembly respectively, and multiple movable clamp block fixing positions are equipped on each track assembly along the length direction of box. Its beneficial effect is that the box different sides of different sizes of hydraulic valve body adapt, need not to design frock alone for different specifications valve body, expands the scope of application, reduces the frock investment cost of many specifications processing. Movable clamp block moves in track assembly, and cooperates with fixed clamp block and track assembly, and will hydraulic valve body clamped fixed, exposes three surfaces of valve body to be processed, realizes " once clamping processing many surfaces", reduces the clamping frequency, avoids the error caused by repeated positioning, guarantees the machining accuracy, reduces the waiting time of surface processing simultaneously, improves the processing efficiency per unit time.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic equipment technology, and in particular to a tooling fixture for a hydraulic valve body. Background Technology

[0002] With the continuous advancement of hydraulic support control system technology, the requirements for the manufacturing level of electro-hydraulic control valve bodies are constantly increasing. In the manufacturing process, tooling fixtures, as an indispensable component, directly affect the machining accuracy, production efficiency, and environmental impact of the valve body. Traditional tooling fixtures primarily rely on standard hydraulic or mechanical clamping mechanisms. These mechanisms utilize hydraulic drive or mechanical locking to quickly fix the workpiece, and are mostly integrated into the processing equipment, suitable only for products with specific shapes and structures. Nowadays, with the continuous improvement of manufacturing processes and the development of intelligent manufacturing technology, traditional tooling fixtures, due to their low product compatibility, complex tooling change operations, extremely low clamping capacity, and environmental pollution risks, are gradually failing to meet the needs of modern production.

[0003] In the prior art, there is a traditional mechanical tooling fixture for machining the valve body of a hydraulic support control valve. This fixture uses a universal clamping mechanism, and the workpiece is positioned and fixed by manually adjusting the mechanical structure. This tooling fixture offers significant improvements over the traditional type in terms of manual operation and ease of tooling change. However, this design still has certain limitations in adapting to high-volume production cycles, compatibility with diverse products, and reducing environmental impact.

[0004] Therefore, there is an urgent need for a tooling fixture suitable for hydraulic valve bodies of various sizes. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a tooling fixture for hydraulic valve bodies, which solves the problem that existing tooling fixtures cannot adapt to various hydraulic valve body technologies.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0009] This utility model provides a tooling fixture for a hydraulic valve body, suitable for clamping a cuboid hydraulic valve body. It includes a base rotatably fixed to a processing platform, a housing fixed to the base, a track assembly, a fixed clamping block, and a movable clamping block. The housing has multiple track assemblies on its sides, and each track assembly has multiple movable clamping block fixing positions along the length of the housing. The movable clamping blocks can be selectively installed on some of these fixing positions. The fixed clamping blocks are adapted to fix the length of the hydraulic valve body to the fixing positions or are positioned on the base corresponding to the movable clamping blocks. The movable clamping blocks, fixed clamping blocks, and track assemblies cooperate to fix the hydraulic valve body. Specifically, the track assembly is adapted to abut against one side of the hydraulic valve body, and the fixed clamping block and movable clamping block are adapted to abut against both ends of the hydraulic valve body. The movable clamping block can move along the track assembly following its fixed clamping position to clamp the hydraulic valve body and expose the three surfaces of the hydraulic valve body to be processed.

[0010] Optionally, the enclosure includes a first side, a second side, a third side, and a fourth side. The first side and the third side, which are opposite to the first side, are parallel to each other. The second side and the fourth side, which are opposite to the second side, are parallel to each other. The first side, the second side, and the fourth side are perpendicular to each other. Four track assemblies extend along the length of the enclosure and are sequentially arranged on the first side, the second side, the third side, and the fourth side.

[0011] Optionally, the track assembly includes a long, narrow track bar, a rotating shaft, multiple first sliders, and multiple second sliders. The side of the multiple first sliders and multiple second sliders away from the housing serves as a clamping block fixing position. A T-shaped slide groove extending along the length of the housing is formed on one side of the track bar. The slide groove includes a first slide rail section and a second slide rail section. The first slider and the second slider are slidably connected to the first slide rail section and the second slide rail section, respectively, and are respectively limited to the two ends of the first slide rail section and the second slide rail section. The rotating shaft passes through the inside of the track bar along the length of the track bar. The rotating shaft has a first threaded section and a second threaded section corresponding to the first slide rail section and the second slide rail section. The first threaded section and the second threaded section have opposite thread rotation directions. The first threaded section is driven to the multiple first sliders through multiple first connectors, and the second threaded section is driven to the multiple second sliders through multiple second connectors.

[0012] Optionally, when the length of the first slide rail section or the second slide rail section is greater than the length of the hydraulic valve body, several movable clamping blocks are installed on the clamping block fixed position, and the fixed clamping block is installed in the middle of the track bar. One movable clamping block and one fixed clamping block are suitable for jointly clamping one hydraulic valve body. A positioning block that is fixedly connected to the housing is provided between the first end of the track bar and the base. The first end of the track bar is fixed to the positioning block, and the other side of the track bar opposite to the slide groove is fixed to the housing.

[0013] Optionally, the fixed position of the clamp block is provided with multiple threaded holes that connect to the movable clamp block; the movable clamp block is provided with multiple first threaded through holes and a first locking strip, the first locking strip extends into the slide groove and abuts against two adjacent first sliders or second sliders, when two adjacent first sliders or two adjacent second sliders abut against the first locking strip, the multiple first threaded through holes on the movable clamp block are respectively aligned with the threaded holes on the two first sliders or two second sliders, and the movable clamp block is threadedly connected to the two first sliders or two second sliders; the fixed clamp block is provided with multiple second threaded through holes and a second locking strip, and the middle of the track bar is provided with a first notch that is adapted to the second locking strip and perpendicular to the extension direction of the slide groove, when the second locking strip is located in the first notch, the multiple second threaded through holes of the fixed clamp block are respectively aligned with the threaded holes on both sides of the first notch, and the second clamp block is threadedly connected to the middle of the track bar.

[0014] Optionally, when the length of the first slide rail segment or the second slide rail segment is less than or equal to the length of the hydraulic valve body, a movable clamping block is installed on the first slide rail, and a fixed clamping block is installed on the base opposite to the movable clamping block. The movable clamping block and the fixed clamping block are adapted to jointly clamp a hydraulic valve body; the first end of the track bar near the base is fixedly connected to the base, and the other side of the track bar opposite to the slide groove is fixed to the housing.

[0015] Optionally, the fixture block has multiple threaded holes for connecting to the movable fixture block at the fixed position; the movable fixture block has multiple first threaded through holes and first locking strips, the first locking strips extend into the slide groove and abut against two adjacent first sliders, when the two adjacent first sliders abut against the first locking strips, the multiple first threaded through holes on the movable fixture block are respectively aligned with the threaded holes on the two first sliders, and the movable fixture block is threadedly connected to the two first sliders; the fixed fixture block has multiple second threaded through holes and second locking strips, and a fixed block is provided between the fixed fixture block and the hydraulic valve body to be fixedly connected to the fixed fixture block and abut against the hydraulic valve body, and a second recess is provided on the base at a position opposite to the movable fixture block to match the side of the fixed fixture block where the second locking strip is located, the second recess has a stepped cross-section along the length of the box, and the fixed fixture block is fixed to the base by the second locking strip engaging with the second recess.

[0016] Optionally, a screwing part for driving the rotating shaft to rotate is fixed at the top of the rotating shaft. The screwing part protrudes from the top of the track bar and its cross-section is polygonal.

[0017] Optionally, both the first connector and the second connector include a threaded sleeve fitted around the periphery of the first threaded segment or the second threaded segment and a transmission rod connected to the first slider or the second slider, with the transmission rod fixedly connected to the periphery of the threaded sleeve.

[0018] Optionally, two first limiting blocks are fixedly provided at both ends of the first slide rail segment to form a limit at both ends of the first slide rail segment; two second limiting blocks are fixedly provided at both ends of the second slide rail segment to form a limit at both ends of the second slide rail segment.

[0019] (III) Beneficial Effects

[0020] The beneficial effects of this utility model are as follows: This utility model provides a tooling fixture for a hydraulic valve body, suitable for clamping a rectangular hydraulic valve body. It includes a base rotatably fixed to a processing platform, a housing fixed to the base, a track assembly, a fixed clamping block, and a movable clamping block. The housing has multiple track assemblies on its sides, and each track assembly has multiple movable clamping block fixing positions along the length of the housing. The movable clamping blocks can be selectively installed on some of the clamping block fixing positions. The fixed clamping blocks are suitable for fixing the length of the hydraulic valve body to the clamping block fixing positions or are set on the base corresponding to the movable clamping blocks. The movable clamping blocks, fixed clamping blocks, and track assemblies cooperate to fix the hydraulic valve body. Specifically, the track assembly is suitable for abutting one side of the hydraulic valve body, and the fixed clamping block and movable clamping block are suitable for abutting both ends of the hydraulic valve body. The movable clamping block can move along the track assembly following its fixed clamping block position to clamp the hydraulic valve body and expose the three surfaces of the hydraulic valve body to be processed. Compared to existing technologies, the housing accommodates hydraulic valve bodies of different sizes on different sides, eliminating the need for separate tooling designs for valve bodies of different specifications. This expands the applicability and reduces the cost of tooling for multi-specification processing. The movable fixture block moves along the track assembly, cooperating with the fixed fixture block and track assembly to clamp and fix the hydraulic valve body, exposing three surfaces to be processed. This achieves "multiple-face processing in a single clamping," reducing the number of clamping operations, avoiding errors caused by repeated positioning, and ensuring processing accuracy. Simultaneously, it reduces waiting time for changing surfaces, improving processing efficiency per unit time. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the tooling fixture for the hydraulic valve body in Embodiment 1 of this utility model;

[0022] Figure 2 for Figure 1 The diagram shows the structural design of the tooling fixture for the hydraulic valve body.

[0023] Figure 3 for Figure 1 A top view of the tooling fixture for the hydraulic valve body is shown.

[0024] Figure 4 for Figure 1 The track assembly in the tooling fixture of the hydraulic valve body shown is a cross-section along the axis of rotation in the top view.

[0025] Figure 5 for Figure 1A schematic diagram of the structure of the hydraulic valve body in the tooling fixture shown;

[0026] Figure 6 for Figure 1 A schematic diagram of the structure of the hydraulic valve body in the tooling fixture shown;

[0027] Figure 7 for Figure 1 A side view of the movable clamping block in the tooling fixture of the hydraulic valve body is shown.

[0028] Figure 8 for Figure 1 A schematic diagram of the structure of the fixing fixture block in the tooling fixture of the hydraulic valve body is shown;

[0029] Figure 9 for Figure 1 A schematic diagram of the structure of the fixing block in the tooling fixture of the hydraulic valve body is shown;

[0030] Figure 10 This is a top view of the positioning plate in the machining system of the hydraulic valve body of Embodiment 2 of this utility model;

[0031] Figure 11 This is a schematic diagram of the pad block in the tooling fixture of the hydraulic valve body in Embodiment 3 of this utility model.

[0032] Explanation of reference numerals in the attached figures

[0033] 1: Hydraulic valve body; 2: Base; 21: Second recess; 3: Housing; 4: Rail assembly; 41: Rail bar; 411: First slide rail section; 412: Second slide rail section; 413: First recess; 414: First limiting block; 415: Second limiting block; 42: Rotating shaft; 421: First threaded section; 422: Second threaded section; 43: First slider; 44: Second slider; 45: Tightening part; 46: Screw sleeve; 47: Transmission rod; 5: Fixed clamp block; 51: Second threaded through hole; 52: Second locking strip; 6: Movable clamp block; 61: First threaded through hole; 62: First locking strip; 7: Positioning block; 8: Fixed block; 9: Positioning plate; 10: Pad block. Detailed Implementation

[0034] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Example 1:

[0036] Reference Figures 1 to 9This embodiment proposes a tooling fixture for a hydraulic valve body, suitable for clamping a rectangular hydraulic valve body 1 and machining the hydraulic valve body 1 on a machining platform. Specifically, the tooling fixture for the hydraulic valve body 1 in this embodiment includes a base 2 rotatably fixed to the machining platform, a housing 3 fixed to the base 2, a track assembly 4, a fixed clamping block 5, and a movable clamping block 6, as detailed below.

[0037] In this embodiment, refer to Figures 1 to 3 The hydraulic valve body 1 is formed from a rectangular raw material through processing. The length and thickness of different hydraulic valve bodies 1 vary. Moreover, the hydraulic valve body 1 needs to be machined on a machining platform using vertical milling, horizontal milling, rough grinding, and deep hole drilling. Thus, the hydraulic valve body 1, held by a tooling fixture, is processed in accordance with the cutting tool. The base 2 can be rotated and fixed on the machining platform, which is existing technology and will not be described in detail here. The housing 3 is a tetrahedral square box, made entirely of ductile iron QT-450 material, with uniformly chamfered sharp edges. The overall shape is a regular octagonal prism with eight identical sides. Moreover, the sides of the housing 3 correspond to the sides of the base 2. Therefore, after each rotation of the housing 3, the sides of the housing 3 still correspond to the sides of the base 2. Track assemblies 4 are installed on multiple sides of the housing 3. The track assemblies 4 are installed along the length of the housing 3, and each track assembly 4 has multiple movable clamping block fixing positions along the length of the housing 3. Movable clamping blocks 6 can be selectively installed on some of the clamping block fixing positions. The selectivity of the movable clamping blocks 6 is based on the length of the hydraulic valve body 1, which is equivalent to the coarse alignment when the movable clamping blocks 6 clamp the hydraulic valve body 1. The movable clamping block fixing position moves the movable clamping blocks 6 to abut against the hydraulic valve body 1, thus completing the clamping of the hydraulic valve body 1 by the movable clamping blocks 6. The fixed clamping block 5 is snapped, screwed, or sleeved onto the clamping block fixing position or the base 2. The fixed clamping block 5 is movable, and the fixed position of the fixed clamping block 5 is selected based on the length of the hydraulic valve body 1. Thus, the movable clamping blocks 6, the fixed clamping blocks 5, and the track assemblies 4 cooperate to clamp and fix the hydraulic valve body 1. Both the movable clamp block 6 and the fixed clamp block 5 are made of 20CrMnTi material, and are carburized as a whole, blackened and finished, with sharp edges uniformly chamfered.

[0038] In this process, after the hydraulic valve body 1 is clamped by the tooling fixture, the track assembly 4 abuts against one side of the cuboid-shaped hydraulic valve body 1, while the fixed fixture block 5 and the movable fixture block 6 are respectively adapted to abut against the two end faces of the hydraulic valve body 1, and the movable fixture block 6 can move on the track assembly 4 following the fixed position of the fixture block it is located in, in order to clamp the hydraulic valve body 1 and expose the three surfaces of the hydraulic valve body 1 to be processed.

[0039] Moreover, refer to Figure 5 and Figure 6The three surfaces of the hydraulic valve body 11 to be processed are surface A, surface B and surface C, and the other three surfaces are the clamped surfaces.

[0040] In summary, compared to existing technologies, the housing 3 accommodates hydraulic valve bodies 1 of different sizes on different sides, eliminating the need for separate tooling designs for valve bodies of different specifications. This expands the applicability and reduces the tooling investment costs for multi-specification processing. The movable clamping block 6 moves along the track assembly 4, cooperating with the fixed clamping block 5 and the track assembly 4 to clamp and fix the hydraulic valve body 1, exposing the three surfaces of the valve body to be processed. This achieves "multiple surfaces processed in one clamping," reducing the number of clamping operations, avoiding errors caused by repeated positioning, and ensuring processing accuracy. At the same time, it reduces the waiting time for changing surfaces during processing, improving processing efficiency per unit time.

[0041] Furthermore, referring to Figures 1 to 3 The housing 3 includes a first side, a second side, a third side, and a fourth side distributed on its sides. The first, second, third, and fourth sides are the four sides of a regular octagonal prism. Each of the first, second, third, and fourth sides is spaced apart by one side. Thus, the first side and the third side, which is opposite to the first side, are parallel to each other, and the second side and the fourth side, which is opposite to the second side, are parallel to each other. Furthermore, the first and second sides, and the fourth side, are perpendicular to each other. Therefore, when rotating the base 2, the next hydraulic valve body 1 can be reached every 90 degrees, allowing for the continuous processing of multiple hydraulic valve bodies 1 in one operation. Four track assemblies 4 extend along the length of the housing 3 and are respectively disposed on the first, second, third, and fourth sides.

[0042] Furthermore, referring to Figure 4 The track assembly 4 includes a long, narrow track bar 41, a rotating shaft 42, multiple first sliders 43, and multiple second sliders 44. The track bar 41 extends along the length of the housing 3. The rotating shaft 42 passes through the track bar 41 along the length of the track bar 41. The multiple first sliders 43 and multiple second sliders 44 are spaced apart along the length of the track bar 41 on the side of the track bar 41 away from the housing 3. The side of the multiple first sliders 43 and multiple second sliders 44 away from the housing 3 is a clamping block fixing position. The movable clamping block 6 and the fixed clamping block 5 can both be fixed on the side of the multiple first sliders 43 and multiple second sliders 44 away from the housing 3.

[0043] Specifically, the track bar 41 has a T-shaped groove extending along the length of the housing 3 on its side away from the housing 3. Multiple first sliders 43 and multiple second sliders 44 are embedded in the groove and can move along it. The groove includes a first slide rail section 411 and a second slide rail section 412, which are symmetrical about the middle of the groove. The first sliders 43 and second sliders 44 are slidably connected to the first slide rail section 411 and the second slide rail section 412, respectively. The first sliders 43 are limited to both ends of the first slide rail section 411, and the second sliders 44 are limited to both ends of the second slide rail section 412. The rotating shaft 42 has a first slider corresponding to the first slide rail section 411 and the second slide rail section 412. The first threaded segment 421 and the second threaded segment 422 are threaded segments with opposite rotation directions. The opposite rotation directions of the threads cause the same nut to move in opposite directions when rotated in one direction. Therefore, the area between the first threaded segment 421 and the second threaded segment 422 is a smooth segment. The first threaded segment 421 is driven to multiple first sliders 43 through multiple first connectors. Each first slider 43 is connected to the first threaded segment 421 through a first connector. The second threaded segment 422 is driven to multiple second sliders 44 through multiple second connectors. Each second slider 44 is connected to the second threaded segment 422 through a second connector.

[0044] Furthermore, referring to Figure 1 and Figure 2 The first slide rail segment 411 and the second slide rail segment 412 have the same length and are symmetrical about the middle of the track bar 41. Therefore, when the length of the first slide rail segment 411 or the second slide rail segment 412 is greater than the length of the hydraulic valve body 1, several movable clamping blocks 6 are installed on the clamping block fixed position, and the fixed clamping block 5 is fixedly connected to the middle of the track bar 41 by means of snap-fit, screw-fit or welding. Thus, one movable clamping block 6 and one fixed clamping block 5 are suitable for jointly clamping one hydraulic valve body 1, and two hydraulic valve bodies 1 can be installed on each track assembly 4. One end of the hydraulic valve body 1 abuts against the fixed clamping block 5, and the other end of the hydraulic valve body 1 is abutted against the other end of the hydraulic valve body 1 by moving the movable clamping block 6, thereby clamping the hydraulic valve body 1. The length of the track bar 41 is in the range of 600mm-800mm. Therefore, when the length of the first slide rail section 411 or the second slide rail section 412 is greater than the length of the hydraulic valve body 1, the suitable length of the hydraulic valve body 1 to be processed is less than 400mm.

[0045] Moreover, refer to Figure 9The end of the track bar 41 near the base 2 is the first end. A positioning block 7 is provided between the first end of the track bar 41 and the base 2. The positioning block 7 is fixedly connected to the housing 3 by means of snap-fit, screw-fit or welding. The positioning block 7 is arranged opposite to the track assembly 4. Thus, the first end of the track bar 41 is fixed on the positioning block 7, and the other side of the track bar 41 opposite to the slide is fixed to the side of the housing 3 by means of screw-fit, snap-fit ​​or welding.

[0046] Furthermore, referring to Figure 7 and Figure 8 The fixture block has multiple threaded holes on its fixed position that connect to the movable fixture block 6. The movable fixture block 6 has multiple first threaded through holes 61 and first retaining strips 62. The first threaded through holes 61 and first retaining strips 62 are connected to the threaded holes on the first slider 43 and the second slider 44 by bolt threads. When the movable fixture block 6 is connected to the first slider 43, the first retaining strips 62 extend into the sliding grooves of two adjacent first sliders 43, and the first retaining strips 62 and the two adjacent first sliders 43 prevent the movable fixture block 6 from moving. When the first retaining strips 62 abut against the two first sliders 43, the first threaded through holes 61 are aligned with the threaded holes on the first sliders 43, which facilitates the threaded connection between the movable fixture block 6 and the first sliders 43. When the movable clamp block 6 is connected to the second slider 44, the first locking strip 62 is located between two adjacent second sliders 44 and abuts against the two adjacent second sliders 44 to prevent the movable clamp block 6 from moving. When the first locking strip 62 abuts against the two second sliders 44, the first threaded through hole 61 is aligned with the threaded hole on the second slider 44 to facilitate the threaded connection between the movable clamp block 6 and the second slider 44.

[0047] Furthermore, the fixed clamp block 5 is provided with multiple second threaded through holes 51 and second locking strips 52. The middle part of the track bar 41 has a first recess 413 that matches the second locking strip 52, and the first recess 413 is perpendicular to the extension direction of the slide groove. The first recess 413 is located on the axis of symmetry of the first slide rail section 411 and the second slide rail section 412. The second locking strip 52 extends into the first recess 413, and the two cooperate with each other to prevent the fixed clamp block 5 from shifting. Thus, the fixed clamp block 5 is relatively fixed to the housing 3. When the second locking strip 52 is located in the first recess 413, the multiple second threaded through holes 51 of the fixed clamp block 5 are respectively aligned with the threaded holes on both sides of the first recess 413. Thus, the movable clamp block 6 and the fixed clamp block 5 clamp the two surfaces of the hydraulic valve body 1 that abut against them, and these two surfaces are in contact with the A surface, B surface and C surface of the hydraulic valve body 1.

[0048] Furthermore, referring to Figure 1 and Figure 2When the length of the first slide rail segment 411 or the second slide rail segment 412 is less than or equal to the length of the hydraulic valve body 1, the first slide rail segment 411 cannot accommodate the hydraulic valve body 1. Therefore, the entire track bar 41 on the track assembly 4 is suitable for mounting the hydraulic valve body 1. A movable clamping block 6 is mounted on the first slider 43, and a fixed clamping block 5 is mounted on the base 2 opposite to the movable clamping block 6. The movable clamping block 6 and the fixed clamping block 5 are suitable for jointly clamping a hydraulic valve body 1. The first end of the track bar 41 near the base 2 is fixedly connected to the base 2, and the other side of the track bar 41 opposite to the slide groove is fixed to the housing 3. Thus, when the length of the first slide rail segment 411 or the second slide rail segment 412 is less than or equal to the length of the hydraulic valve body 1, the suitable length of the hydraulic valve body 1 to be processed is in the range of 400mm-690mm.

[0049] Furthermore, referring to Figure 7 and Figure 8 The fixture block has multiple threaded holes on its fixed position that connect to the movable fixture block 6. The movable fixture block 6 has multiple first threaded through holes 61 and first retaining strips 62. The first retaining strips 62 extend into the sliding groove and abut against two adjacent first sliders 43. When two adjacent first sliders 43 abut against the first retaining strips 62, the multiple first threaded through holes 61 on the movable fixture block 6 are respectively aligned with the threaded holes on the two first sliders 43, and the movable fixture block 6 is threadedly connected to the two first sliders 43.

[0050] Furthermore, the fixed clamp block 5 is provided with multiple second threaded through holes 51 and second locking strips 52. A fixing block 8 is provided between the fixed clamp block 5 and the hydraulic valve body 1, which is fixedly connected to the fixed clamp block 5 and is suitable for abutting against the hydraulic valve body 1. A second recess 21 is provided on the base 2 at a position opposite to the movable clamp block 6, which is adapted to the side of the fixed clamp block 5 where the second locking strip 52 is located. The cross-section of the second recess 21 along the length direction of the box body 3 is stepped. The fixed clamp block 5 is fixed to the base 2 by the second locking strip 52 engaging with the second recess 21.

[0051] Furthermore, a screwing part 45 is fixed to the top of the rotating shaft 42 by welding, screwing or snapping, etc. The screwing part 45 has a polygonal cross-section and can drive the rotating shaft 42 to rotate. The screwing part 45 protrudes from the top of the track bar 41.

[0052] Furthermore, referring to Figure 4Both the first and second connecting members include a threaded sleeve 46 and a transmission rod 47. The threaded sleeve 46 of the first connecting member is fitted around the periphery of the first threaded section 421. The two ends of the transmission rod 47 of the first connecting member are welded, snap-fitted, or riveted to the periphery of the threaded sleeve 46 and the first slider 43, respectively, to convert the rotation of the rotating shaft 42 into the linear motion of the first slider 43. The threaded sleeve 46 of the second connecting member is fitted around the periphery of the second threaded section 422. The two ends of the transmission rod 47 of the second connecting member are welded, snap-fitted, or riveted to the periphery of the threaded sleeve 46 and the second slider 44, respectively, to convert the rotation of the rotating shaft 42 into the linear motion of the second slider 44.

[0053] Furthermore, referring to Figure 1 and Figure 2 Two first limiting blocks 414 are fixedly provided at both ends of the first slide rail segment 411. As the first limiting blocks 414 move, they can abut against the first slider 43, thereby limiting the ends of the first slide rail segment 411. Two second limiting blocks 415 are fixedly provided at both ends of the second slide rail segment 412. As the second limiting blocks 415 move, they can abut against the second slider 44, thereby limiting the ends of the second slide rail segment 412.

[0054] Example 2:

[0055] Reference Figure 10 This embodiment proposes a machining system for a hydraulic valve body, including a tooling fixture and a positioning plate 9 for the hydraulic valve body 1, as detailed below.

[0056] In this embodiment, refer to Figure 10 When the hydraulic valve body 1 is fixed to the track assembly 4, the hydraulic valve body 1 needs to be installed in place, with the positioning plate 9 fitting against the A surface of the hydraulic valve body 1 and one side of the track bar 41. Multiple positioning plates 9 are threadedly connected to the hydraulic valve body 1 and the track bar 41, thereby placing the A surface of the hydraulic valve body 1 and one side of the track bar 41 on the same plane. The positioning plate 9 is strip-shaped, with an oblong hole extending along the length of the positioning plate 9 and a threaded hole adjacent to the oblong hole. The threaded hole on the positioning plate 9 is connected to the threaded hole on the track bar 41, while the oblong hole on the positioning plate 9 is threadedly connected to multiple threaded holes on the A surface of the hydraulic valve body 1.

[0057] Example 3:

[0058] Reference Figure 11 The difference between this embodiment and embodiment 1 is that this embodiment also includes a pad block 10, as detailed below.

[0059] In this embodiment, refer to Figure 11In order to ensure that the B surface of the hydraulic valve body 1 protrudes from the movable clamp block 6 and the fixed clamp block 5, a pad block 10 is provided between the B surface of the hydraulic valve body 1 and the other surface and the track bar 41. The pad block 10 has multiple threaded through holes. By setting the pad block 10, the B surface of the hydraulic valve body 1 protrudes from the movable clamp block 6 and the fixed clamp block 5, which facilitates the processing of the B surface of the hydraulic valve body 1.

[0060] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0061] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0062] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0063] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0064] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A tooling fixture for a hydraulic valve body, suitable for clamping a rectangular hydraulic valve body (1), characterized in that, It includes a base (2) that can be rotatably fixed to the processing platform, a box (3) fixed to the base (2), a track assembly (4), a fixed clamping block (5) and a movable clamping block (6); The housing (3) has multiple side rail assemblies (4) on each side. Each rail assembly (4) has multiple movable clamping block fixing positions along the length of the housing (3). Movable clamping blocks (6) can be selectively installed on some of the clamping block fixing positions. Fixed clamping blocks (5) are suitable for fixing the length of the hydraulic valve body (1) to the clamping block fixing position or set on the base (2) corresponding to the movable clamping block (6). The movable clamping block (6), fixed clamping block (5), and rail assembly (4) cooperate to fix the hydraulic valve body (1). The track assembly (4) is adapted to abut one side of the hydraulic valve body (1), the fixed clamp block (5) and the movable clamp block (6) are adapted to abut both ends of the hydraulic valve body (1), and the movable clamp block (6) can move on the track assembly (4) following the fixed position of the clamp block it is located in, for clamping the hydraulic valve body (1) and exposing the three surfaces of the hydraulic valve body (1) to be processed.

2. The tooling fixture for the hydraulic valve body as described in claim 1, characterized in that: The box (3) includes a first side, a second side, a third side and a fourth side. The first side and the third side, which are opposite to the first side, are parallel to each other. The second side and the fourth side, which are opposite to the second side, are parallel to each other. The first side, the second side and the fourth side are perpendicular to each other. Four track components (4) are arranged sequentially on the first side, second side, third side and fourth side along the length of the box (3).

3. The tooling fixture for the hydraulic valve body as described in claim 1, characterized in that: The track assembly (4) includes a long strip track (41), a rotating shaft (42), a plurality of first sliders (43) and a plurality of second sliders (44), with the plurality of first sliders (43) and the plurality of second sliders (44) having a clamp block fixing position on the side away from the housing (3); A T-shaped groove extending along the length of the housing (3) is provided on one side of the track bar (41). The groove includes a first slide rail section (411) and a second slide rail section (412). A first slider (43) and a second slider (44) are slidably connected to the first slide rail section (411) and the second slide rail section (412), respectively, and are respectively limited to the two ends of the first slide rail section (411) and the second slide rail section (412). A rotating shaft (42) passes through the track bar (41) along the length of the track bar (41). Inside, the rotating shaft (42) is provided with a first threaded section (421) and a second threaded section (422) corresponding to the first slide rail section (411) and the second slide rail section (412). The first threaded section (421) and the second threaded section (422) rotate in opposite directions. The first threaded section (421) is connected to a plurality of first sliders (43) through a plurality of first connectors, and the second threaded section (422) is connected to a plurality of second sliders (44) through a plurality of second connectors.

4. The tooling fixture for the hydraulic valve body as described in claim 3, characterized in that: When the length of the first slide rail section (411) or the second slide rail section (412) is greater than the length of the hydraulic valve body (1), several movable clamp blocks (6) are installed on the clamp block fixed position, and the fixed clamp block (5) is installed in the middle of the track bar (41). One movable clamp block (6) and one fixed clamp block (5) are suitable for jointly clamping one hydraulic valve body (1). A positioning block (7) is provided between the first end of the track bar (41) and the base (2) and is fixedly connected to the box body (3). The first end of the track bar (41) is fixed to the positioning block (7), and the other side of the track bar (41) opposite to the slide groove is fixed to the box body (3).

5. The tooling fixture for the hydraulic valve body as described in claim 4, characterized in that: The fixture block fixing position is provided with multiple threaded holes that connect to the movable fixture block (6); The movable clamp block (6) is provided with a plurality of first threaded through holes (61) and a first locking strip (62). The first locking strip (62) extends into the slide groove and abuts against two adjacent first sliders (43) or second sliders (44). When two adjacent first sliders (43) or two adjacent second sliders (44) abut against the first locking strip (62), the plurality of first threaded through holes (61) on the movable clamp block (6) are respectively aligned with the threaded holes on the two first sliders (43) or two second sliders (44). The movable clamp block (6) is threadedly connected to the two first sliders (43) or two second sliders (44). The fixing clamp block (5) is provided with multiple second threaded through holes (51) and second locking strips (52). The middle part of the track bar (41) is provided with a first notch (413) that is adapted to the second locking strip (52) and perpendicular to the extension direction of the slide groove. When the second locking strip (52) is located in the first notch (413), the multiple second threaded through holes (51) of the fixing clamp block (5) are respectively aligned with the threaded holes on both sides of the first notch (413), and the second clamp block is threadedly connected to the middle part of the track bar (41).

6. The tooling fixture for the hydraulic valve body as described in claim 3, characterized in that: When the length of the first slide rail segment (411) or the second slide rail segment (412) is less than or equal to the length of the hydraulic valve body (1), a movable clamp block (6) is installed on the first slider (43), and a fixed clamp block (5) is installed on the base (2) opposite to the movable clamp block (6). A movable clamp block (6) and a fixed clamp block (5) are adapted to jointly clamp a hydraulic valve body (1). The first end of the track bar (41) near the base (2) is fixedly connected to the base (2), and the other side of the track bar (41) opposite to the slide is fixed to the box body (3).

7. The tooling fixture for the hydraulic valve body as described in claim 6, characterized in that: The fixture block fixing position is provided with multiple threaded holes that connect to the movable fixture block (6); The movable clamp block (6) is provided with multiple first threaded through holes (61) and first locking strips (62). The first locking strips (62) extend into the slide groove and abut against two adjacent first sliders (43). When the two adjacent first sliders (43) abut against the first locking strips (62), the multiple first threaded through holes (61) on the movable clamp block (6) are respectively aligned with the threaded holes on the two first sliders (43). The movable clamp block (6) is threadedly connected to the two first sliders (43). The fixed clamp block (5) is provided with multiple second threaded through holes (51) and second locking strips (52). A fixed block (8) is provided between the fixed clamp block (5) and the hydraulic valve body (1) to be fixedly connected to the fixed clamp block (5) and to abut against the hydraulic valve body (1). A second recess (21) is provided on the base (2) at a position opposite to the movable clamp block (6) and is adapted to the side of the fixed clamp block (5) where the second locking strip (52) is located. The second recess (21) has a stepped cross-section along the length direction of the box body (3). The fixed clamp block (5) is fixed on the base (2) by the second locking strip (52) engaging with the second recess (21).

8. The tooling fixture for the hydraulic valve body as described in claim 3, characterized in that: The top end of the rotating shaft (42) is fixed with a screwing part (45) for driving the rotating shaft (42) to rotate. The screwing part (45) protrudes from the top end of the track bar (41) and its cross-section is polygonal.

9. The tooling fixture for the hydraulic valve body as described in claim 3, characterized in that: Both the first connector and the second connector include a threaded sleeve (46) sleeved around the first threaded section (421) or the second threaded section (422) and a transmission rod (47) connected to the first slider (43) or the second slider (44), with the transmission rod (47) fixedly connected to the circumference of the threaded sleeve (46).

10. The tooling fixture for the hydraulic valve body as described in claim 3, characterized in that: Two first limiting blocks (414) are fixed at both ends of the first slide rail section (411) to form the limiting at both ends of the first slide rail section (411); Two second limiting blocks (415) are fixed at both ends of the second slide rail section (412) to form the limiting at both ends of the second slide rail section (412).

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