Hydraulic valve body machining clamp

Abstract

The utility model discloses a hydraulic valve body machining clamp, which relates to the technical field of clamps and comprises a mounting base, a first guide rail, a first moving seat, a second moving seat, a workpiece placing table, a driving part, a second guide rail, a sliding frame, a clamping plate, a support, an air cylinder, a buffer base plate, a buffer plate and the like. According to the clamp, the first moving seat and the second moving seat rapidly slide on the first guide rail through the driving part and synchronously get close to or separate from each other until the first moving seat and the second moving seat reach the position near a preset clamping position of a workpiece. And then, the air cylinder starts to work to push the sliding frame to slide on the second guide rail, so that the clamping plate is accurately close to the workpiece, and fine-tuning clamping action is realized. And due to the design of the buffer base plate and the buffer plate, buffer protection in the clamping process is provided, hard collision between the workpiece and the clamp is reduced, the workpiece and the clamp are effectively protected, and the service life is prolonged. The clamping device has the advantages of quick positioning, fine-adjustment clamping, buffering protection and the like, and is suitable for machining and clamping of workpieces such as hydraulic valves and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a hydraulic valve body processing clamp. Background Art

[0002] In the machinery manufacturing industry, the processing of hydraulic valve bodies is a vital link. As a key fluid control component, the processing accuracy and quality of hydraulic valve bodies directly affect the performance and stability of the entire hydraulic system. With the continuous advancement of industrial technology, the requirements for the processing accuracy and efficiency of hydraulic valve bodies are also constantly increasing.

[0003] Traditional hydraulic valve body processing fixtures mostly use mechanical clamping or pneumatic clamping. Although these methods can meet the processing requirements to a certain extent, they also have some obvious shortcomings. Traditional fixture designs often lack adaptability to the processing process and cannot automatically adjust the clamping force according to the size changes of the valve body during the processing. This limits the improvement of processing efficiency and processing accuracy to a certain extent. At the same time, waste particles are easily accumulated on the fixture and the workpiece surface, which is easy to damage the workpiece surface when the clamping force is applied. For this reason, we propose a hydraulic valve body processing fixture. Utility Model Content

[0004] The utility model aims to solve the problem of how to achieve appropriate adjustment and clean the surface of a workpiece during clamping, and proposes a hydraulic valve body processing fixture.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The cam is an assembly made of a plurality of movable members, each of which is connected to a plurality of movable members, each of which is connected to a plurality of movable members.

[0007] Preferably, the driving unit comprises a motor mounted on the mounting base, the output end of the motor is connected to a bidirectional screw, and the bottoms of the first movable seat and the second movable seat are respectively threadedly connected to two sections of the bidirectional screw.

[0008] Preferably, the elastic component includes four fixed rods installed on the clamping plate, the ends of the four fixed rods away from the clamping plate are connected to a fixed plate, the middle part of the fixed plate is hollow, the cylinder is located in the middle hollow part of the fixed plate, and a sliding groove is provided on the buffer base plate, and the buffer base plate is slidably connected to the four fixed rods through the sliding groove, and each of the fixed rods is sleeved with a first spring, and the two ends of the first spring are respectively against the fixed plate and the buffer base plate.

[0009] Preferably, two sealing cylinders are installed on the buffer base plate, and the two sealing cylinders are symmetrically arranged. A piston is slidably connected in the sealing cylinder, and a push rod is provided on the piston. The push rod passes through the port of the sealing cylinder and extends outward. The extended end of the push rod is connected to a baffle. A second spring is sleeved on the push rod, and the two ends of the second spring are respectively abutted against the sealing cylinder and the baffle. A cavity is provided in the buffer plate, and the cavity is connected to the sealing cylinder. An air outlet connected to the cavity is provided on the buffer plate.

[0010] Preferably, a filter is provided in the air outlet.

[0011] Preferably, a buffer pad is installed on the clamping plate, and a through hole is formed on the buffer pad for the buffer plate to pass through.

[0012] Compared with the prior art, the utility model provides a hydraulic valve body processing fixture, which has the following beneficial effects:

[0013] The utility model can realize fast positioning and fine-tuning clamping. The driving part realizes that the first moving seat and the second moving seat slide quickly on the first guide rail, and they approach or separate synchronously until they reach the vicinity of the predetermined clamping position of the workpiece. When the first moving seat and the second moving seat reach the vicinity of the predetermined position, the cylinder starts to work, and the output end of the cylinder extends to push the sliding frame to slide on the second guide rail, thereby making the clamp accurately approach the workpiece. Due to the high-precision control characteristics of the cylinder, this process can realize fine-tuning clamping action to ensure that the workpiece is stably and accurately fixed. The design of the buffer base plate and the buffer plate provides buffer protection during the clamping process, reduces the hard collision between the workpiece and the fixture, effectively protects the workpiece and the fixture, and prolongs the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the structure of a hydraulic valve body processing fixture proposed by the utility model Figure 1 ;

[0015] Figure 2 A schematic diagram of the structure of a hydraulic valve body processing fixture proposed by the utility model Figure 2 ;

[0016] Figure 3 A schematic diagram of the structure of a hydraulic valve body processing fixture proposed by the utility model Figure 3 ;

[0017] Figure 4 A hydraulic valve body processing fixture proposed by the utility model Figure 3 The structural diagram of part A in the figure;

[0018] Figure 5 A hydraulic valve body processing fixture proposed by the utility model Figure 3 The structural diagram of part B;

[0019] Figure 6 This is a front view of a hydraulic valve body processing fixture proposed by the utility model;

[0020] In the figure: 100, mounting base; 101, first movable seat; 102, second movable seat; 103, workpiece placement table; 104, motor; 105, bidirectional screw; 106, second guide rail; 107, sliding frame; 108, clamping plate; 109, first guide rail; 200, support; 201, cylinder; 202, fixed plate; 203, fixed rod; 204, first spring; 300, buffer substrate; 302, sealing cylinder; 303, push rod; 304, second spring; 305, piston; 306, buffer plate; 307, cavity; 308, air outlet; 309, filter; 310, buffer pad; 311, baffle. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] Reference Figure 1-Figure 6A hydraulic valve body processing fixture includes a mounting base 100, a first guide rail 109 is provided on the mounting base 100, a first movable seat 101 and a second movable seat 102 are slidably connected to the first guide rail 109, a workpiece placement table 103 is provided on the mounting base 100, the workpiece placement table 103 is located between the first movable seat 101 and the second movable seat 102, a driving unit for driving the first movable seat 101 and the second movable seat 102 to synchronously approach or separate from each other is provided on the mounting base 100, and a second guide rail 106 is provided on the first movable seat 101 and the second movable seat 102. A sliding frame 107 is slidingly arranged, a clamping plate 108 is installed on the sliding frame 107, a support 200 is connected to the first movable seat 101 and the second movable seat 102, a cylinder 201 is installed on the support 200, the output end of the cylinder 201 is connected to the clamping plate 108, a buffer substrate 300 is installed on the clamping plate 108, one end of the buffer substrate 300 is connected to a buffer plate 306, one end of the buffer plate 306 passes through the clamping plate 108 and extends in the clamping direction, an elastic component is provided on the clamping plate 108, the elastic component is used to provide elastic force for the buffer plate 306, and the buffer plate 306 shrinks into the clamping plate 108 after encountering resistance.

[0024] With such a scheme, first, the hydraulic valve body to be processed is placed on the workpiece placement table 103, the driving unit is started, and the first movable seat 101 and the second movable seat 102 are driven to slide synchronously on the first guide rail 109, that is, to move closer or farther away synchronously. When the first movable seat 101 and the second movable seat 102 move to the predetermined position, the cylinder 201 starts to move, and the output end of the cylinder 201 extends to push the sliding frame 107 to slide on the second guide rail 106, thereby making the clamping plate 108 close to the workpiece. In the process of the clamping plate 108 contacting and clamping the workpiece, the buffer base plate 300 and the buffer plate 306 play a buffering role. If there is unevenness or foreign matter on the surface of the workpiece, the buffer plate 306 will shrink slightly under the action of the elastic component to avoid hard direct collision and protect the workpiece and the fixture.

[0025] The utility model can realize fast positioning and fine-tuning clamping. The driving part realizes the first movable seat 101 and the second movable seat 102 to slide quickly on the first guide rail 109, and to approach or separate synchronously with each other until they reach the vicinity of the predetermined clamping position of the workpiece. When the first movable seat 101 and the second movable seat 102 reach the vicinity of the predetermined position, the cylinder 201 starts to work, and the output end of the cylinder 201 extends to push the sliding frame 107 to slide on the second guide rail 106, thereby making the clamping plate 108 accurately approach the workpiece. Due to the high-precision control characteristics of the cylinder 201, this process can realize fine-tuning clamping action to ensure that the workpiece is stably and accurately fixed. The design of the buffer substrate 300 and the buffer plate 306 provides buffer protection during the clamping process, reduces the hard collision between the workpiece and the fixture, effectively protects the workpiece and the fixture, and prolongs the service life.

[0026] Optionally, in one embodiment, the driving unit includes a motor 104 mounted on a mounting base 100 , an output end of the motor 104 is connected to a bidirectional screw 105 , and the bottoms of the first movable seat 101 and the second movable seat 102 are respectively threadedly connected to two sections of the bidirectional screw 105 .

[0027] With such a solution, the motor 104 can be a stepper motor, a servo motor or other types, which can provide precise control. When the motor 104 rotates, the bidirectional screw 105 also rotates. Since the two ends of the bidirectional screw 105 have opposite thread directions, when the screw rotates, the first movable seat 101 and the second movable seat 102 will move relative to each other.

[0028] In one embodiment, the elastic component includes four fixed rods 203 installed on the clamp 108, and the ends of the four fixed rods 203 away from the clamp 108 are connected to the fixed plate 202, the middle part of the fixed plate 202 is hollow, and the cylinder 201 is located in the middle hollow part of the fixed plate 202. A sliding groove is provided on the buffer substrate 300, and the buffer substrate 300 is slidably connected to the four fixed rods 203 through the sliding groove. A first spring 204 is sleeved on each fixed rod 203, and the two ends of the first spring 204 are respectively against the fixed plate 202 and the buffer substrate 300.

[0029] With such a scheme, the elastic component consists of four fixed rods 203, a fixed plate 202 and a first spring 204. The fixed rods 203 are installed on the clamping plate 108. The middle part of the fixed plate 202 is hollowed out, and the cylinder 201 is located in this hollowed-out part, ensuring that the output end of the cylinder 201 can smoothly push the clamping plate 108 and the buffer substrate 300. When the buffer plate 306 contacts the workpiece and encounters resistance, the buffer substrate 300 will slide along the fixed rods 203 due to the resistance. The first spring 204 will provide a certain elastic force, so that the buffer substrate 300 and the buffer plate 306 can shrink into the clamping plate 108 when encountering resistance, thereby avoiding hard collision. When the resistance disappears, the elastic force of the first spring 204 will reset the buffer substrate 300, and the buffer plate 306 will extend again to prepare for the next clamping action.

[0030] In one embodiment, two sealing cylinders 302 are installed on the buffer substrate 300, and the two sealing cylinders 302 are symmetrically arranged. A piston 305 is slidably connected in the sealing cylinder 302, and a push rod 303 is provided on the piston 305. The push rod 303 passes through the port of the sealing cylinder 302 and extends outward. The extended end of the push rod 303 is connected to a baffle 311, and a second spring 304 is sleeved on the push rod 303. The two ends of the second spring 304 are respectively against the sealing cylinder 302 and the baffle 311. A cavity 307 is provided in the buffer plate 306, and the cavity 307 is connected to the sealing cylinder 302. The buffer plate 306 is provided with an air outlet 308 connected to the cavity 307.

[0031] By adopting such a scheme, in the initial unstressed state, the second spring 304 is in a natural state, and the buffer plate 306 is in a normal clamping position. When the buffer plate 306 contacts the workpiece and encounters resistance, the buffer plate 306 begins to shrink inward. Due to the shrinkage of the buffer plate 306, the baffle 311 will first abut against the fixed plate 202. This contact causes the push rod 303 to be squeezed and pushes the piston 305 to move in the sealing tube 302. The movement of the piston 305 will compress the gas in the sealing tube 302 and increase its internal air pressure. The sealing tube 302 and the cavity 307 in the buffer plate 306 are connected, and the air pressure will force the gas to enter the cavity 307. As the gas continues to enter, the pressure in the cavity 307 will increase accordingly, and the gas will be ejected through the air port 308 on the buffer plate 306. The ejected airflow has a certain cleaning effect, which can clean the surface of the workpiece, remove possible dust, impurities or other small particles, and reduce dust and particulate matter when the clamp 108 is clamped with the workpiece.

[0032] Optionally, in one embodiment, a filter 309 is provided in the air outlet 308 .

[0033] Optionally, in one embodiment, a buffer pad 310 is installed on the clamping plate 108 , and a through hole is opened on the buffer pad 310 for the buffer plate 306 to pass through.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydraulic valve body processing fixture, characterized in that: The invention comprises a mounting base (100), wherein the mounting base (100) is provided with a first guide rail (109), a first movable seat (101) and a second movable seat (102) are slidably connected to the first guide rail (109), a workpiece placement table (103) is provided on the mounting base (100), the workpiece placement table (103) is located between the first movable seat (101) and the second movable seat (102), the mounting base (100) is provided with a driving unit for driving the first movable seat (101) and the second movable seat (102) to synchronously approach or separate from each other, the first movable seat (101) and the second movable seat (102) are both provided with a second guide rail (106), and a sliding frame (107) is slidably provided on the second guide rail (106) ), a clamping plate (108) is installed on the sliding frame (107), the first movable seat (101) and the second movable seat (102) are both connected to a support (200), a cylinder (201) is installed on the support (200), the output end of the cylinder (201) is connected to the clamping plate (108), a buffer substrate (300) is installed on the clamping plate (108), one end of the buffer substrate (300) is connected to a buffer plate (306), one end of the buffer plate (306) passes through the clamping plate (108) and extends in the clamping direction, an elastic component is provided on the clamping plate (108), the elastic component is used to provide elastic force for the buffer plate (306), and the buffer plate (306) shrinks into the clamping plate (108) after encountering resistance.

2. The hydraulic valve body machining fixture according to claim 1, characterized in that: The driving unit comprises a motor (104) mounted on the mounting base (100), the output end of the motor (104) is connected to a bidirectional screw (105), and the bottoms of the first movable seat (101) and the second movable seat (102) are respectively connected to two sections of the bidirectional screw (105) by threads.

3. The hydraulic valve body machining fixture according to claim 2, characterized in that: The elastic component comprises four fixed rods (203) mounted on the clamping plate (108), one end of the four fixed rods (203) away from the clamping plate (108) is connected to a fixed plate (202), the middle part of the fixed plate (202) is hollowed out, the cylinder (201) is located in the middle hollow part of the fixed plate (202), a sliding groove is provided on the buffer substrate (300), the buffer substrate (300) is slidably connected to the four fixed rods (203) through the sliding groove, each of the fixed rods (203) is sleeved with a first spring (204), and the two ends of the first spring (204) are respectively against the fixed plate (202) and the buffer substrate (300).

4. The hydraulic valve body machining fixture according to claim 3, characterized in that: Two sealing cylinders (302) are installed on the buffer substrate (300), and the two sealing cylinders (302) are symmetrically arranged. A piston (305) is slidably connected in the sealing cylinder (302), and a push rod (303) is provided on the piston (305). The push rod (303) passes through the port of the sealing cylinder (302) and extends outward. The extended end of the push rod (303) is connected with a baffle (311). A second spring (304) is sleeved on the push rod (303), and the two ends of the second spring (304) are respectively against the sealing cylinder (302) and the baffle (311). A cavity (307) is provided in the buffer plate (306), and the cavity (307) is communicated with the sealing cylinder (302). The buffer plate (306) is provided with an air outlet (308) communicated with the cavity (307).

5. The hydraulic valve body machining fixture according to claim 4, characterized in that: A filter screen (309) is provided in the air outlet (308).

6. The hydraulic valve body machining fixture according to claim 4, characterized in that: A buffer pad (310) is installed on the clamping plate (108), and a through hole is provided on the buffer pad (310) for the buffer plate (306) to pass through.

Images