A machining tool for a large spherical valve plate by turning

Abstract

The present invention relates to a turning processing tooling for a large spherical valve plate, which includes a base in the shape of a regular polygonal prism column. One end of the base is coaxially and fixedly provided with a flange plate. An installation mechanism is arranged on the base, and a plurality of workpieces are fixedly arranged on the side prism surfaces of the base one by one through the installation mechanism. For this turning processing tooling for a large spherical valve plate, the installation time of the workpiece and the processing time of the workpiece are overlapped through the installation mechanism, thereby improving the processing efficiency. Moreover, when the workpiece is connected to the base, only the nut needs to be rotated, and there is no need to operate the taper pin and the workpiece anymore, which simplifies the disassembly and assembly actions of the workpiece, shortens the disassembly and assembly time of the workpiece, and further improves the processing efficiency of the workpiece. In addition, through the positioning of the workpiece by the positioning component, the deflection of the workpiece can be prevented, which affects the processing accuracy.

Description

Technical Field

[0001] The present invention relates to a turning processing tooling for a large spherical port plate, belonging to the field of port plate processing. Background Art

[0002] The port plate is one of the important components of a piston pump. The oil inlet and oil discharge are realized through the kidney-shaped windows on the port plate, which plays the roles of oil distribution and sealing. The port plate cooperates with the spherical surface of the cylinder block to ensure that after an oil film is formed, the piston can move evenly. The arc surface processing is the core process of port plate processing and manufacturing.

[0003] The utility model patent with the application number CN201921004168.4 discloses that a part grinding arc surface tooling includes a mandrel and a base. The base is in the shape of a regular prism, a central through hole is provided at the center of the bottom surface of the base, and the side prism surfaces of the base are respectively used for fixing a plurality of workpieces. The base is sleeved and connected to the mandrel through the central through hole. This part grinding arc surface tooling can improve the processing accuracy when multiple workpieces are processed simultaneously. However, during the disassembly and assembly process of the workpiece, it is necessary to disassemble and assemble one by one through connecting pieces, the operation is cumbersome, and a large amount of time is consumed, thus affecting the processing efficiency.

[0004] Therefore, there is a need for a turning processing tooling for a large spherical port plate to shorten the disassembly and assembly time of the workpiece and improve the processing efficiency of the workpiece. Summary of the Invention

[0005] The technical problem to be solved by the present invention is: in order to overcome the deficiencies of the prior art, to provide a turning processing tooling for a large spherical port plate that shortens the disassembly and assembly time of the workpiece and improves the processing efficiency of the workpiece.

[0006] The technical solution adopted by the present invention to solve the above problems is: a turning processing tooling for a large spherical port plate, including a base in the shape of a regular polygonal tube column, one end of the base is coaxially and fixedly provided with a flange plate, and an installation mechanism is arranged on the base. Through the installation mechanism, a plurality of workpieces are fixedly arranged on the respective side prism surfaces of the base one by one;

[0007] The installation mechanism includes a fixing ring, the fixing ring is fixedly attached to the side of the base away from the flange plate, and a plurality of installation components are arranged on the side of the fixing ring close to the base. The plurality of installation components correspond to the plurality of side prism surfaces of the base one by one;

[0008] The installation component includes a connecting block and a sliding groove. The sliding groove is arranged on the side prism surface of the base. The connecting block is locked with the fixing ring through a first screw. The connecting block matches the sliding groove, the connecting block is inserted into the sliding groove, a positioning pin is inserted through the connecting block, one end of the positioning pin is attached to the inner side wall of the base, a taper pin is coaxially inserted through the positioning pin. The taper pin is composed of a nail body and a taper block. The taper block is located at the outer end of the taper pin, and a nut is threaded on the inner end of the taper pin. The nut abuts against the inner end of the positioning pin.

[0009] Preferably, the nut is a hexagonal flange nut.

[0010] Preferably, a first protrusion is provided on a side of the connection block away from the flange, and the first protrusion is in contact with two adjacent outer side surfaces of the fixed ring respectively.

[0011] Preferably, depressions are provided on each side edge surface of the base.

[0012] Preferably, the installation mechanism further includes a plurality of positioning components, and the plurality of positioning components correspond to the plurality of connection blocks one by one;

[0013] The positioning component includes a pressing plate on a side of the flange close to the base, and the pressing plate is connected to the fixed ring through two elastic units on a side away from the flange.

[0014] Preferably, the elastic unit includes a moving plate provided on a side of the moving plate away from the flange. The moving plate is fixedly connected to the pressing plate. A fixing rod is inserted through the moving plate. The fixing rod is parallel to the base. One end of the fixing rod is fixedly provided on the fixed ring, and the other end of the fixing rod is fixedly provided with a connection disk. A second spring is sleeved on the fixing rod. The second spring is located between the connection disk and the moving plate. One end of the second spring is fixed on the connection disk, and the other end of the second spring is fixedly provided on the moving plate.

[0015] Preferably, a connecting rod is inserted through the moving plate. The connecting rod is parallel to the fixing rod. One end of the connecting rod is fixedly provided on the pressing plate, and the connecting rod is locked with the moving plate through a second screw.

[0016] Preferably, a first spring is sleeved on the positioning pin. The first spring is located between the connection block and the conical block.

[0017] Preferably, the diameter of the conical block gradually decreases in a direction approaching the nail body, and the minimum diameter of the conical block is equal to the diameter of the nail body.

[0018] A method for using a turning processing tool for a large spherical port plate includes the following steps:

[0019] Step 1:

[0020] The flange is coaxially installed on the mandrel.

[0021] Step 2:

[0022] The workpiece is pre-installed on the installation mechanism.

[0023] Step 3:

[0024] The workpiece and the base are locked through the installation mechanism.

[0025] Step Four:

[0026] The base rotates to achieve simultaneous machining of multiple workpieces;

[0027] Step Five:

[0028] After machining, remove the installation mechanism on the base to achieve pre-disassembly of the workpiece;

[0029] Loosen the nut and pull out the fixing ring;

[0030] Step Six:

[0031] Unscrew the nut and pull out the taper pin, then remove the workpiece from the positioning pin;

[0032] There are multiple installation mechanisms. When one installation mechanism is in Step Three, Step Four, and Step Five, the other installation mechanisms perform Step Two and Step Six.

[0033] Compared with the prior art, the advantages of the present invention are as follows:

[0034] A turning machining tooling for a large spherical port plate of the present invention overlaps the installation time of the workpiece and the machining time of the workpiece through the installation mechanism, thereby improving the machining efficiency. Moreover, when connecting the workpiece to the base, only the nut needs to be rotated, and there is no need to operate on the taper pin and the workpiece, simplifying the disassembly and assembly actions of the workpiece, shortening the disassembly and assembly time of the workpiece, and further improving the machining efficiency of the workpiece. In addition, through the positioning of the workpiece by the positioning component, the deflection of the workpiece can be prevented, which affects the machining accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a perspective view of a turning machining tooling for a large spherical port plate of the present invention;

[0036] Figure 2 is a front view of a turning machining tooling for a large spherical port plate of the present invention;

[0037] Figure 3 is a top view of a turning machining tooling for a large spherical port plate of the present invention;

[0038] Figure 4 is a right view of a turning machining tooling for a large spherical port plate of the present invention;

[0039] Figure 5 is an exploded view of a turning machining tooling for a large spherical port plate of the present invention;

[0040] Figure 6 is a cross-sectional view of the workpiece;

[0041] Figure 7 is a perspective view of the installation component;

[0042] Figure 8 Exploded view of the installation component;

[0043] Figure 9 Structural schematic diagram of the positioning component;

[0044] Figure 10 is Figure 9 Enlarged view of part A of;

[0045] Figure 11 Structural schematic diagram of the fixing ring;

[0046] Figure 12 Structural schematic diagram of the connecting block.

[0047] Wherein: base 1, flange 2, installation mechanism 3, fixing ring 31, installation component 32, connecting block 32.1, chute 32.2, first screw 32.3, positioning pin 32.4, taper pin 32.5, nail body 32.51, taper block 32.52, nut 32.6, first spring 32.7, first protrusion 32.8, positioning component 33, extrusion plate 33.1, elastic unit 33.2, moving plate 33.21, fixing rod 33.22, connecting plate 33.23, second spring 33.24, connecting rod 33.25, second screw 33.26, workpiece 4, through hole 5, second protrusion 6, depression 7. Specific implementation mode

[0048] As Figures 1-12 shown, a machining tool for a large spherical port plate in this embodiment includes a base 1 in the shape of a regular hexagonal prism column. One end of the base 1 is coaxially and fixedly provided with a flange 2. During work, the flange 2 is coaxially installed on the mandrel. When the mandrel rotates, the base 1 is driven to rotate synchronously through the flange 2. An installation mechanism 3 is provided on the base 1. Six workpieces 4 are respectively fixed on the side edges of the base 1 through the installation mechanism 3. When the base 1 rotates, the workpieces 4 are driven to rotate synchronously, so that the six workpieces 4 can be machined simultaneously, improving work efficiency.

[0049] The installation mechanism 3 includes a fixing ring 31. The fixing ring 31 is in the shape of a regular hexagonal prism. The fixing ring 31 is fixedly attached to the side of the base 1 away from the flange 2. Six installation components 32 are provided on the side of the fixing ring 31 close to the base 1. The six installation components 32 correspond to the six side edges of the base 1 one by one;

[0050] The installation component 32 includes a connecting block 32.1 and a sliding groove 32.2. The sliding groove 32.2 is provided on the side edge surface of the base 1. The connecting block 32.1 is locked with the fixing ring 31 through a first screw 32.3. The connecting block 32.1 matches the sliding groove 32.2. The connecting block 32.1 is inserted into the sliding groove 32.2. A positioning pin 32.4 is inserted through the connecting block 32.1. One end of the positioning pin 32.4 abuts against the inner side wall of the base 1. A taper pin 32.5 is coaxially inserted through the positioning pin 32.4. The taper pin 32.5 is composed of a pin body 32.51 and a taper block 32.52. The taper block 32.52 is located at the outer end of the taper pin 32.5. A nut 32.6 is threaded on the inner end of the taper pin 32.5. The nut 32.6 abuts against the inner end of the positioning pin 32.4. The diameter of the taper block 32.52 gradually decreases in the direction towards the pin body 32.51. The minimum diameter of the taper block 32.52 is equal to the diameter of the pin body 32.51. A first spring 32.7 is sleeved on the positioning pin 32.4. The first spring 32.7 is located between the connecting block 32.1 and the taper block 32.52. When installing the workpiece 4, the installation component 32 is separated from the base 1. The nut 32.6 is loosened and separated from the taper pin 32.5. The taper pin 32.5 is taken out from the positioning pin 32.4. Actually, a through hole 5 is provided on the workpiece 4. The through hole 5 is sleeved from the outer end of the positioning pin 32.4. At this time, the first spring 32.7 is located between the workpiece 4 and the connecting block 32.1. The first spring 32.7 can support the workpiece 4, preventing the workpiece 4 from continuing to move towards the connecting block 32.1 and avoiding the gap between the workpiece 4 and the connecting block 32.1 from being too small, which may cause the inner side of the workpiece 4 not to fit against the side edge surface of the base 1 after the connecting block 32.1 is inserted into the sliding groove 32.2. Then, the taper pin 32.5 is inserted into the through hole 5 and the positioning pin 32.4 in sequence and locked through the nut 32.6. The outer end of the through hole 5 is conical and matches the taper block 32.52. In this way, the workpiece 4 can be prevented from falling off. After that, the fixing ring 31 is fitted against the base 1, and the connecting block 32.1 is inserted into the sliding groove 32.2. At the same time, the workpiece 4 is located outside the base 1. Subsequently, the nut 32.6 is tightened, and the taper block 32.52 can push the workpiece 4 towards the base 1 until the inner side of the workpiece 4 fits against the side edge surface of the base 1. The nut 32.6 is a hexagon flange face nut 32.6.

[0051] Among them, two installation mechanisms 3 are provided for the same base 1. When one installation mechanism 3 is used for processing the workpiece 4, the other workpiece 4 can be pre-installed. In this way, the installation time of the workpiece 4 overlaps with the processing time, thereby improving the processing efficiency. When the installation mechanism 3 is connected to the base 1, only the nut 32.6 needs to be rotated, and there is no need to operate on the taper pin 32.5 and the workpiece 4 anymore. In this way, the disassembly and assembly actions of the workpiece 4 are simplified, the disassembly and assembly time of the workpiece 4 is shortened, and the processing efficiency of the workpiece 4 is further improved.

[0052] On the side of the connecting block 32.1 away from the flange 2, a first protrusion 32.8 is provided. The first protrusion 32.8 is in contact with two adjacent outer side surfaces of the fixing ring 31 respectively. In this way, the positioning between the connecting block 32.1 and the fixing ring 31 is achieved.

[0053] On the inner side wall of the workpiece 4, a second protrusion 6 is provided. On each side edge surface of the base 1, a recess 7 is provided. The recess 7 matches the second protrusion 6. When the workpiece 4 is installed, the second protrusion 6 is inserted into the groove.

[0054] The installation mechanism 3 further includes six positioning components 33, and the six positioning components 33 correspond to the six connecting blocks 32.1 one by one;

[0055] The positioning component 33 includes a pressing plate 33.1 on the side of the flange 2 close to the base 1. The side of the pressing plate 33.1 away from the flange 2 is connected to the fixing ring 31 through two elastic units 33.2. Before the workpiece 4 is sleeved on the positioning pin 32.4, the pressing plate 33.1 is pushed to move away from the flange 2. After the workpiece 4 is sleeved on the positioning pin 32.4, the pressing plate 33.1 moves in the reverse direction and fits against the side of the workpiece 4 away from the flange 2 through the elastic unit 33.2. And through the elastic action generated by the elastic unit 33.2, the pressing plate 33.1 pushes the workpiece 4 to rotate around the positioning pin 32.4. In this way, the circumferential positioning of the workpiece 4 around the axis of the positioning pin 32.4 can be achieved, preventing the workpiece 4 from deflecting and affecting the machining accuracy.

[0056] The elastic unit 33.2 includes a moving plate 33.21 on the side of the moving plate 33.21 away from the flange 2. The moving plate 33.21 is fixedly connected to the pressing plate 33.1. A fixing rod 33.22 is inserted through the moving plate 33.21. The fixing rod 33.22 is parallel to the base 1. One end of the fixing rod 33.22 is fixedly arranged on the fixing ring 31, and the other end of the fixing ring 31 is fixedly provided with a connecting plate 33.23. A second spring 33.24 is sleeved on the fixing rod 33.22. The second spring 33.24 is located between the connecting plate 33.23 and the moving plate 33.21. One end of the second spring 33.24 is fixed on the connecting plate 33.23, and the other end of the second spring 33.24 is fixedly arranged on the moving plate 33.21. When the pressing plate 33.1 is pushed to move away from the flange 2, the moving plate 33.21 is driven to move synchronously on the fixing rod 33.22, and the second spring 33.24 is compressed. When the pressing plate 33.1 is released, the moving plate 33.21 drives the pressing plate 33.1 to move in the reverse direction through the elastic action of the second spring 33.24.

[0057] A connecting rod 33.25 is inserted through the moving plate 33.21. The connecting rod 33.25 is parallel to the fixed rod 33.22. One end of the connecting rod 33.25 is fixedly arranged on the pressing plate 33.1. The connecting rod 33.25 is locked with the moving plate 33.21 through the second screw 33.26. Loosen the second screw 33.26 to make the connecting rod 33.25 move on the moving plate 33.21, then the position of the pressing plate 33.1 along the axis direction of the base 1 can be adjusted to adapt to workpieces 4 of different sizes. After the position adjustment is completed, just tighten the second screw 33.26.

[0058] A usage method of a turning processing tooling for a large spherical port plate includes the following steps:

[0059] Step 1:

[0060] The flange plate 2 is coaxially installed on the mandrel. When the mandrel rotates, the base 1 is driven to rotate synchronously through the flange plate 2;

[0061] Step 2:

[0062] Pre-install the workpiece 4 on the installation mechanism 3;

[0063] Loosen the nut 32.6 to separate it from the taper pin 32.5, take out the taper pin 32.5 from the positioning pin 32.4, push the pressing plate 33.1 to move, compress the second spring 33.24, sleeved the through hole 5 on the workpiece 4 from the outer end of the positioning pin 32.4, insert the taper pin 32.5 into the through hole 5 and the positioning pin 32.4 in sequence, loosen the pressing plate 33.1, and make the pressing plate 33.1 push the workpiece 4 to rotate around the positioning pin 32.4 through the elastic action of the second spring 33.24, so as to realize the circumferential positioning of the workpiece 4 around the axis of the positioning pin 32.4. Then, lock it through the nut 32.6;

[0064] Step 3:

[0065] Lock the workpiece 4 and the base 1 through the installation mechanism 3;

[0066] Fit the fixed ring 31 with the base 1, and insert the connecting block 32.1 into the sliding groove 32.2. At the same time, make the workpiece 4 located outside the base 1. Then, tighten the nut 32.6 to make the tapered block 32.52 push the workpiece 4 to move towards the base 1, so that the inner side of the workpiece 4 fits with the side edge surface of the base 1, realizing the locking between the workpiece 4 and the base 1;

[0067] Step 4:

[0068] The base 1 rotates to realize the simultaneous processing of multiple workpieces 4;

[0069] Step 5:

[0070] After processing, remove the mounting mechanism 3 on the base 1 to achieve pre-disassembly of the workpiece 4;

[0071] Loosen the nut 32.6, and after a gap is generated between the workpiece 4 and the base 1 through the elastic action of the first spring 32.7, the fixing ring 31 can be withdrawn;

[0072] Step Six

[0073] Unscrew the nut 32.6 and withdraw the taper pin 32.5, and the workpiece 4 can be removed from the positioning pin 32.4;

[0074] There are multiple mounting mechanisms 3. When one mounting mechanism 3 is in Step Three, Step Four, and Step Five, the other mounting mechanisms 3 perform Step Two and Step Six, so that the processing time and the disassembly and assembly time overlap, improving work efficiency. Moreover, when the workpiece 4 is connected to or separated from the base 1, only the nut 32.6 needs to be tightened or loosened, which is simple and convenient to operate, shortening the disassembly and assembly time of the workpiece 4 and further improving the processing efficiency of the workpiece 4.

[0075] In addition to the above embodiments, the present invention also includes other implementation manners. Any technical solutions formed by equivalent transformation or equivalent substitution shall fall within the protection scope of the claims of the present invention.

Claims

1. A turning processing tooling for a large spherical valve plate, characterized in that: It includes a base (1) in the shape of a regular polygonal tube column. One end of the base (1) is coaxially and fixedly provided with a flange (2). An installation mechanism (3) is provided on the base (1). Through the installation mechanism (3), a plurality of workpieces (4) are fixedly arranged on each side edge surface of the base (1) in a one-to-one correspondence; The installation mechanism (3) includes a fixing ring (31). The fixing ring (31) is fixedly attached to the side of the base (1) away from the flange (2). A plurality of installation components (32) are arranged on the side of the fixing ring (31) close to the base (1). The plurality of installation components (32) correspond to the plurality of side edge surfaces of the base (1) one by one; The installation component (32) includes a connecting block (32.1) and a sliding groove (32.2). The sliding groove (32.2) is arranged on the side edge surface of the base (1). The connecting block (32.1) is locked with the fixing ring (31) through a first screw (32.3). The connecting block (32.1) is matched with the sliding groove (32.2). The connecting block (32.1) is inserted into the sliding groove (32.2). A positioning pin (32.4) is inserted through the connecting block (32.1). One end of the positioning pin (32.4) is attached to the inner side wall of the base (1). A taper pin (32.5) is coaxially inserted through the positioning pin (32.4). The taper pin (32.5) is composed of a nail body (32.51) and a taper block (32.52). The taper block (32.52) is located at the outer end of the taper pin (32.5). A nut (32.6) is threaded on the inner end of the taper pin (32.5). The nut (32.6) abuts against the inner end of the positioning pin (32.4); The installation mechanism (3) further includes a plurality of positioning components (33). The plurality of positioning components (33) correspond to the plurality of connecting blocks (32.1) one by one; The positioning component (33) includes a pressing plate (33.1) on the side of the flange (2) close to the base (1). The side of the pressing plate (33.1) away from the flange (2) is connected to the fixing ring (31) through two elastic units (33.2); The elastic unit (33.2) includes a moving plate (33.21) arranged on the side of the moving plate (33.21) away from the flange (2). The moving plate (33.21) is fixedly connected to the pressing plate (33.1). A fixing rod (33.22) is inserted through the moving plate (33.21). The fixing rod (33.22) is parallel to the base (1). One end of the fixing rod (33.22) is fixedly arranged on the fixing ring (31). The other end of the fixing ring (31) is fixedly provided with a connecting disc (33.23). A second spring (33.24) is sleeved on the fixing rod (33.22). The second spring (33.24) is located between the connecting disc (33.23) and the moving plate (33.21). One end of the second spring (33.24) is fixed on the connecting disc (33.23). The other end of the second spring (33.24) is fixedly arranged on the moving plate (33.21); A connecting rod (33.25) is inserted through the moving plate (33.21). The connecting rod (33.25) is parallel to the fixed rod (33.22). One end of the connecting rod (33.25) is fixedly arranged on the extrusion plate (33.1), and the connecting rod (33.25) is locked with the moving plate (33.21) through the second screw (33.26). A first spring (32.7) is sleeved on the positioning pin (32.4). The first spring (32.7) is located between the connecting block (32.1) and the conical block (32.52).

2. The machining tool for a large spherical port plate lathe according to claim 1, wherein: The nut (32.6) is a hexagon flange face nut (32.6).

3. The machining tool for the large spherical port plate turning according to claim 1, characterized in that: A first protrusion (32.8) is arranged on one side of the connecting block (32.1) away from the flange plate (2). The first protrusion (32.8) is respectively in contact with two adjacent outer side surfaces of the fixed ring (31).

4. A machining tool for a large spherical valve plate of a swash plate pump according to claim 1, characterized in that: Depressions (7) are arranged on each side edge surface of the base (1).

5. A machining tool for a large spherical port plate turning according to claim 1, characterized in that: The diameter of the conical block (32.52) gradually decreases towards the direction close to the nail body (32.51), and the minimum diameter of the conical block (32.52) is equal to the diameter of the nail body (32.51).

6. The usage method of a machining tool for a large spherical valve plate of a swash plate pump according to claim 1, characterized in that: It includes the following steps: Step 1: The flange plate (2) is coaxially installed on the mandrel. Step 2: The workpiece (4) is pre-installed on the installation mechanism (3). Step 3: The workpiece (4) and the base (1) are locked through the installation mechanism (3). Step 4: The base (1) rotates to realize simultaneous processing of multiple workpieces (4). Step 5: After processing, the installation mechanism (3) on the base (1) is removed to realize pre-disassembly of the workpiece (4). Just loosen the nut (32.6) and pull out the fixed ring (31). Step 6: Unscrew the nut (32.6) and pull out the taper pin (32.5), and then remove the workpiece (4) from the positioning pin (32.4). There are multiple installation mechanisms (3). When one installation mechanism (3) is in Step 3, Step 4 and Step 5, the other installation mechanisms (3) perform Step 2 and Step 6.

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