Cylinder body machining method and clamp structure

Abstract

The invention provides a cylinder body machining method and a clamp structure, the clamp structure comprises an inner supporting clamp, a connecting rod clamp and a connecting plate, and the bottom end of the inner supporting clamp and the bottom end of the connecting rod clamp are provided with limiting grooves; a base plate is installed on the connecting plate in a sliding mode, a plurality of installation holes are formed in the base plate, and a locking piece is installed on the base plate. A clamping device is arranged in the mounting hole; the clamping device is used for being matched with the limiting groove to fix the inner supporting clamp and the connecting rod clamp, and an air bag assembly is installed on the inner supporting clamp. The connecting plate is used for being installed on driving equipment, and the driving equipment is used for driving the base plate to move; the problems that in the prior art, a clamp structure lacks the clamping freedom degree, the clamp remodeling debugging time is long, the clamping ejector block is tedious to adjust, and compatibility is poor can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of cylinder body processing, in particular to a cylinder body processing method and a clamp structure. Background Art

[0002] In the field of mechanical processing, especially in the processing of parts such as cylinder blocks, fixtures play a vital role; the processing quality of the cylinder block directly affects the overall performance and reliability of the engine. Through precise processing technology, it can ensure that the various components of the cylinder block fit closely, reduce friction and wear, thereby improving the efficiency and life of the engine, and have an important impact on its weight and heat dissipation performance. A lightweight cylinder block can reduce the curb weight of the vehicle, thereby reducing fuel consumption; and good heat dissipation performance can ensure that the engine runs at the optimal operating temperature, improving fuel economy; the traditional clamping and fixing structure is a single plate that is directly squeezed and clamped, so that after clamping, when squeezing in different directions, there will still be slippage; in order to solve the problems existing in the prior art, the invention with announcement number CN222626959U discloses a vehicle engine cylinder block processing fixture (hereinafter referred to as prior art 1), including a supporting bottom block, the two ends of the supporting bottom block are water-sealed. An end fixing plate is welded symmetrically, and a top horizontal groove is horizontally opened on the top surface of the supporting bottom block, and an end box body is fixedly provided on one end of the supporting bottom block, and a vertical upright rod is vertically connected to the top surface of the supporting bottom block, and a side connecting block is horizontally clamped on one side of the vertical upright rod, and the side connecting block is connected to a vertical plate body at one end away from the vertical upright rod, and a fixed bottom plate is horizontally fixed on the side of the vertical plate body away from the side connecting block, and a clamping top block is horizontally connected to the side of the vertical plate body away from the side connecting block, and a rotating disk is horizontally provided on the top of the vertical plate body.

[0003] The fixture in the prior art 1 adopts an integrated control structure, which makes the clamping and fixing more stable; however, the fixture in the prior art can only clamp the side of the cylinder body, and the cylinder body is prone to floating or shifting during the processing; and the fixture in the prior art 1 needs to replace or adjust the structure and position of the clamping top block when clamping cylinder bodies of different models and shapes; the fixture in the prior art 1 takes a long time to change and debug, and there are problems such as cumbersome adjustment and poor compatibility. Summary of the Invention

[0004] The purpose of the present invention is to provide a cylinder body processing method and a fixture structure, which, in actual use, can solve the problems of the fixture structure in the prior art, such as lack of clamping freedom, long fixture replacement and debugging time, cumbersome adjustment of the clamping top block, and poor compatibility.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A clamp structure includes an inner support clamp, a connecting rod clamp and a connecting plate, wherein the bottom ends of the inner support clamp and the connecting rod clamp are provided with limiting grooves;

[0007] A base plate is slidably mounted on the connecting plate, the base plate is provided with a plurality of mounting holes, and a locking member is mounted on the base plate; a clamp is provided in the mounting hole; the clamp is used to cooperate with the limiting groove to fix the inner support clamp and the connecting rod clamp, and the airbag assembly is mounted on the inner support clamp;

[0008] The connecting plate is used to be mounted on a driving device, and the driving device is used to drive the substrate to move.

[0009] Preferably, the internal support clamp includes a tensioning sleeve, a fixing part and a driving mechanism, the limiting groove is arranged at the bottom end of the fixing part, the tensioning sleeve is slidably installed on the fixing part, the driving mechanism is provided with a first driving surface for driving the tensioning sleeve to expand, the tensioning sleeve is provided with a stress groove, and the airbag assembly is installed on the tensioning sleeve.

[0010] Preferably, the fixing member is provided with a second driving surface for driving the expansion sleeve.

[0011] Preferably, the airbag assembly includes a first airbag, a second airbag and an air tube, the first airbag is connected to the side of the tensioning sleeve in contact with the cylinder body, the second airbag is connected to the side of the tensioning sleeve away from the cylinder body, and the first airbag and the second airbag are connected through the air tube.

[0012] Preferably, the connecting rod clamp includes a telescopic device, a pressure block and a connecting rod, the bottom end of the device is provided with the limiting groove, the pressure block is rotatably connected to the telescopic end of the telescopic device, one end of the connecting rod is connected to the fixed end of the telescopic device, and the other end is rotatably connected to the pressure block.

[0013] Preferably, a positioning pin is installed on the base plate, and the bottom end of the positioning pin is provided with the limiting groove.

[0014] Preferably, a slide groove is provided in the positioning pin, a buffer block is slidably installed in the slide groove, a spring is connected to the slide groove, and the buffer block and the slide groove are connected through the spring.

[0015] Preferably, a cushion block is fixedly connected to the bottom end of the buffer block.

[0016] Preferably, the clamp includes a mounting portion, a driving member, a ball and a tension spring, a liquid cavity is provided in the base plate, and a liquid source device for inputting high-pressure liquid into the liquid cavity is connected to the base plate; the driving member is slidably installed in the mounting portion, and the driving member is connected to the mounting hole through the tension spring, a rolling groove is provided on the mounting portion, and the ball is slidably installed in the rolling groove.

[0017] A cylinder body processing method includes a fixture structure, specifically a process method for processing the cylinder body, comprising the following steps:

[0018] Step 1: Rough milling of the top surface and left and right sides of the cylinder body, and processing of the process holes set on the top surface of the cylinder body and the plug holes set on the sides of the cylinder body;

[0019] Step 2: Rough milling of the front and rear end faces, bottom surface and bearing seat surface of the cylinder block, rough boring of the crankshaft hole and drilling of the main oil channel;

[0020] Step 3: Perform precision milling on the bottom surface, bearing seat surface, and left and right side surfaces of the cylinder body, and process the threaded holes on the left and right side surfaces;

[0021] Step 4: Process the oil grooves, slip grooves and threaded holes on the front and rear end surfaces of the cylinder body;

[0022] Step 5: Pressure test the machined cylinder block and install the bearing cover;

[0023] Step 6: Finish milling the top and front and rear end faces of the cylinder block, machining the pin holes on the front and rear end faces, the top surface pin holes, and finishing boring the cylinder bore and crankshaft hole.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] In the present invention, the inner support fixture is used to cooperate with the through hole provided on the cylinder body to clamp the cylinder body, thereby achieving preliminary positioning and anti-torsion; the connecting rod fixture is used to cooperate with the stepped structure formed on the surface of the cylinder body to press the cylinder body onto the base plate, thereby further fixing the cylinder body and preventing the cylinder body from floating during the processing;

[0026] After the inner support clamp and the connecting rod clamp are installed in the mounting holes evenly distributed on the base plate, the inner support clamp and the connecting rod clamp are quickly installed and fixed by the cooperation of the clamp in the mounting hole and the limiting groove provided at the bottom end of the inner support clamp and the connecting rod clamp, thereby improving the clamping efficiency;

[0027] When the cylinder body needs to be clamped for subsequent processing, by installing the inner support clamp and the connecting rod clamp in the mounting holes at different positions, the inner support clamp and the connecting rod clamp can be flexibly combined and replaced according to the requirements of processing different shapes, different sizes and different surfaces of the same cylinder body; among them, the airbag assembly installed on the inner support clamp can play a buffering role in the process of cooperation between the inner support clamp and the through hole set on the cylinder body. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 Schematic diagram of the connection relationship between the base plate and the connecting plate in the present invention.

[0030] Figure 2 It is a schematic diagram of the use state of the present invention.

[0031] Figure 3 It is a structural schematic diagram of the present invention.

[0032] Figure 4 For the present invention Figure 3 A partial enlarged view of point A in the middle.

[0033] Figure 5 For the present invention Figure 3 A partial enlarged view of point B in the middle.

[0034] Figure 6 Schematic diagram of the structure of the stress groove in the present invention.

[0035] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0036] 1-inner support fixture, 2-connecting rod fixture, 3-connecting plate, 4-limiting groove, 5-base plate, 6-mounting hole, 7-locking piece, 8-clamp, 9-airbag assembly, 10-locating pin, 11-buffer block, 12-spring, 13-pad, 14-guide groove, 15-cylinder body, 101-tension sleeve, 102-fixing piece, 103-driving mechanism, 104-first driving surface, 105-stress groove, 106-second driving surface, 201-telescopic device, 202-pressing block, 203-connecting rod, 801-mounting part, 802-driving piece, 803-ball, 804-tension spring, 805-liquid chamber, 806-allowance groove, 901-first airbag, 902-second airbag, 903-trachea. DETAILED DESCRIPTION

[0037] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0038] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the embodiments of the present invention.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0040] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0041] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0042] The disclosure below provides many different embodiments or examples for implementing different structures of the embodiments of the present invention. In order to simplify the disclosure of the embodiments of the present invention, the components and configurations of specific examples are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. In addition, the embodiments of the present invention may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or configurations discussed.

[0043] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0044] Example 1

[0045] See Figures 1-6 This embodiment discloses a clamp structure, including an inner support clamp 1, a connecting rod 203 clamp 2 and a connecting plate 3, wherein the bottom ends of the inner support clamp 1 and the connecting rod 203 clamp 2 are provided with a limiting groove 4;

[0046] A base plate 5 is slidably mounted on the connecting plate 3, and a plurality of mounting holes 6 are provided on the base plate 5. A locking member 7 is mounted on the base plate 5; a clamp 8 is provided in the mounting hole 6; the clamp 8 is used to cooperate with the limiting groove 4 to fix the inner support fixture 1 and the connecting rod 203 fixture 2, and an airbag assembly 9 is mounted on the inner support fixture 1;

[0047] The connecting plate 3 is used to be mounted on a driving device, and the driving device is used to drive the base plate 5 to rotate.

[0048] In this embodiment, the connecting plate 3 is detachably mounted on the workbench of the driving device by bolts, so that the connecting plate 3 can be moved under the drive of the driving device; a guide groove 14 is provided on the connecting plate 3, and a slider is provided at the bottom end of the base plate 5, and the base plate 5 is slidably mounted in the guide groove 14 through the slider, and the locking member 7 is a locking bolt, and the locking thread is connected to the basic thread, and the base plate 5 can be fixed by rotating the locking bolt so that the locking bolt presses the base plate 5 on the connecting plate 3; in the process of clamping the cylinder body 15, the internal support clamp 1 is used to cooperate with the through hole provided on the cylinder body 15 to clamp the cylinder body 15 to achieve preliminary positioning and anti-torsion; the connecting rod 203 clamp 2 is used to cooperate with the stepped structure formed on the surface of the cylinder body 15 to press the cylinder body 15 on the base plate 5, and when the cylinder body 15 is moved While fixing in one step, the cylinder body 15 is prevented from floating during the processing; after the inner support clamp 1 and the connecting rod 203 clamp 2 are installed in the mounting holes 6 evenly distributed on the base plate 5, the inner support clamp 1 and the connecting rod 203 clamp 2 are quickly installed and fixed through the cooperation of the clamp 8 in the mounting hole 6 and the limiting groove 4 set at the bottom end of the inner support clamp 1 and the connecting rod 203 clamp 2, thereby improving the clamping efficiency; when the cylinder body 15 needs to be clamped for subsequent processing, by installing the inner support clamp 1 and the connecting rod 203 clamp 2 in the mounting holes 6 at different positions, the inner support clamp 1 and the connecting rod 203 clamp 2 can be flexibly combined and replaced according to the requirements of different shapes, different sizes and different surfaces of the same cylinder body 15; wherein, the airbag assembly 9 installed on the inner support clamp 1 can play a buffering role in the process of cooperation between the inner support clamp 1 and the through hole set on the cylinder body 15.

[0049] In some embodiments, the internal support clamp 1 includes a tensioning sleeve 101, a fixing member 102 and a driving mechanism 103. The limiting groove 4 is arranged at the bottom end of the fixing member 102. The tensioning sleeve 101 is slidably installed on the fixing member 102. The driving mechanism 103 is provided with a first driving surface 104 for driving the tensioning sleeve 101 to expand. The tensioning sleeve 101 is provided with a stress groove 105. The airbag assembly 9 is installed on the tensioning sleeve 101. In this embodiment, the tensioning sleeve 101 is made of metal, and the driving mechanism 103 is a conventional hydraulic telescopic rod in the prior art. The structure and function of the hydraulic telescopic rod are not elaborated here one by one. The movable end of the hydraulic telescopic rod is provided with the first driving surface 104, and the tensioning sleeve 101 is evenly distributed with a plurality of stress grooves 105. When the hydraulic telescopic rod moves toward the tensioning sleeve 101, the first driving surface 104 provided at the movable end of the driving mechanism 103 can drive the tensioning sleeve 101 to expand outward. After expansion, the tensioning sleeve 101 is in close contact with the inner wall of the through hole of the cylinder body 15, which can perform preliminary positioning of the cylinder body 15 and prevent the cylinder body 15 from torsion resistance during the subsequent clamping process.

[0050] In some embodiments, the fixing member 102 is provided with a second driving surface 106 for driving the expansion of the tension sleeve 101. In this embodiment, when the tension sleeve 101 slides upward under the action of the driving mechanism 103, the second driving surface 106 further applies an outward thrust to the tension sleeve 101, assisting its expansion. Compared to relying solely on the first driving surface 104 of the driving mechanism 103 to drive the expansion of the tension sleeve 101, the provision of the second driving surface 106 ensures more uniform expansion of the tension sleeve 101 and a more balanced distribution of clamping force.

[0051] In some embodiments, the stress groove 105 includes a first slot and a second slot, the first slot is provided with an opening for communicating with the top end of the tensioning sleeve 101, the second slot is provided with an opening for communicating with the bottom end of the tensioning sleeve 101, and the first slot and the second slot are arranged at intervals. In this embodiment, by connecting the opening provided on the first slot with the top end of the tensioning sleeve 101, the top end of the tensioning sleeve 101 can be more easily opened outward under the guidance of the first driving surface 104. The second slot connected to the bottom end of the tensioning sleeve 101 through the opening helps the bottom end of the tensioning sleeve 101 to expand under the guidance of the second driving surface 106. The first slot and the second slot are arranged at intervals to ensure that the deformation of the entire tensioning sleeve 101 in the length direction is more uniform. The driving mechanism 103 can drive the tensioning sleeve 101 to expand synchronously

[0052] In some embodiments, the airbag assembly 9 includes a first airbag 901, a second airbag 902 and an air tube 903. The first airbag 901 is connected to the side of the tensioning sleeve 101 that contacts the cylinder body 15, and the second airbag 902 is connected to the side of the tensioning sleeve 101 away from the cylinder body 15. The first airbag 901 and the second airbag 902 are connected by the air tube 903. In this embodiment, the second airbag 902 is arranged between the tension sleeve 101 and the driving mechanism 103; when the driving mechanism 103 drives the tension sleeve 101 to expand outward, the first airbag 901 contacts the inner wall of the through hole provided on the cylinder body 15, which can buffer and balance the contact pressure between the tension sleeve 101 and the cylinder body 15, thereby avoiding local stress concentration; as the tension sleeve 101 further expands, the tension sleeve 101 contacts the cylinder body 15, completing the preliminary positioning of the cylinder body 15; after the air flow in the first airbag 901 is squeezed, the internal gas actively flows into the second airbag 902 through the air pipe 903, so that the second airbag 902 can fill the tension sleeve 101 after expansion. 01 and the driving mechanism 103 to form a uniform supporting reaction force on the inner wall of the tensioning sleeve 101, thereby improving the overall radial stiffness of the tensioning sleeve 101; by providing the first airbag 901, the tensioning sleeve 101 can achieve a conversion from flexible contact to rigid locking during the process of expanding to cooperate with the cylinder body 15, thereby avoiding damage to the surface of the cylinder body 15 during the expansion of the tensioning sleeve 101 and ensuring the stability of the cylinder body 15 after the tensioning sleeve 101 rigidly limits the cylinder body 15; and by providing the second airbag 902, the space between the tensioning sleeve 101 and the driving mechanism 103 can be further supported, and at the same time serve as a storage space for the gas after the first airbag 901 is squeezed.

[0053] Example 2

[0054] See Figures 1-6This embodiment is a further optimization of the first embodiment. In this embodiment, the connecting rod 203 fixture 2 includes a telescopic device 201, a pressure block 202, and a connecting rod 203. The bottom end of the device is provided with the limiting groove 4. The pressure block 202 is rotatably connected to the telescopic end of the telescopic device 201. One end of the connecting rod 203 is connected to the fixed end of the telescopic device 201, and the other end is rotatably connected to the pressure block 202. In this embodiment, the telescopic device 201 is a conventional electric push rod in the prior art, and its fixed end is fixedly mounted on the base plate 5. The limiting groove 4 provided at the bottom end of the telescopic device 201 cooperates with the mounting hole 6 on the base plate 5 to achieve rapid positioning and installation. The telescopic end of the telescopic device 201 is provided with a rotating shaft, and the pressure block 202 is rotatably connected to the rotating shaft via a bearing, allowing the pressure block 202 to rotate freely about the rotating shaft. One end of the connecting rod 203 is hinged to the fixed end of the telescopic device 201 via a pin, and the other end is hinged to the middle of the pressure block 202 via a pin. When the telescopic end of the telescopic device 201 makes a linear motion, the pressure block 202 is driven to rotate around the rotation axis through the transmission action of the connecting rod 203, thereby clamping or loosening the cylinder body 15. The pressure block 202 can automatically adjust the angle according to the shape of the cylinder body 15, thereby improving the fixing efficiency and fixing effect of the pressure block 202 on cylinder bodies 15 of different shapes.

[0055] In some embodiments, a positioning pin 10 is installed on the substrate 5, and the bottom end of the positioning pin 10 is provided with the limiting groove 4; the limiting groove 4 provided at the bottom end of the telescopic device 201 cooperates with the mounting hole 6 on the substrate 5 to achieve rapid positioning and installation; when the cylinder body 15 needs to be positioned, the pre-processed positioning hole on the cylinder body 15 is aligned with the positioning pin 10 and through the cooperation of the positioning hole and the positioning pin 10, the cylinder body 15 is accurately put on the positioning pin 10 to achieve precise positioning.

[0056] In some embodiments, a slide groove is provided in the positioning pin 10, in which a buffer block 11 is slidably installed. A spring 12 is connected to the slide groove, and the buffer block 11 and the slide groove are connected by the spring 12. In this embodiment, when the cylinder body 15 is placed on the positioning pin 10, the buffer block 11 of the positioning pin 10 first contacts the cylinder body 15; as the cylinder body 15 is pressed downward, the buffer block 11 slides downward along the slide groove and compresses the spring 12. The elastic force generated by the spring 12 keeps the buffer block 11 in close contact with the cylinder body 15 at all times, while absorbing the impact force during the placement of the cylinder body 15, thereby avoiding rigid collision between the positioning pin 10 and the workpiece, and preventing indentations or deformation on the workpiece surface due to impact.

[0057] In some embodiments, a cushion block 13 is fixedly connected to the bottom end of the buffer block 11. In this embodiment, as the cylinder 15 is pressed downward, the buffer block 11 slides downward along the slide groove until it contacts the slide groove. After contacting the slide groove, the cushion block 13 can provide initial support and limit the cylinder 15, preventing the spring 12 from being over-compressed or failing or damaged due to long-term compression, thereby protecting the spring 12.

[0058] In some embodiments, the clamp 8 includes a mounting portion 801, a driver 802, a ball bearing 803, and a tension spring 804. A liquid chamber 805 is provided within the base plate 5, and a liquid source device for inputting high-pressure liquid into the liquid chamber 805 is connected to the base plate 5. The driver 802 is slidably mounted within the mounting portion 801 and connected to the mounting hole 6 via the tension spring 804. The mounting portion 801 is provided with a rolling groove, and the ball bearing 803 is slidably mounted within the rolling groove. When the fixing member 102, the positioning pin 10, and the telescopic device 201 are placed into the mounting hole 6 according to the predetermined position, the mounting portion 801 is fixedly mounted in the mounting hole 6, and a slot is provided within the mounting portion 801 that communicates with the liquid chamber 805, and the driver 802 is slidably mounted within the slot. In this embodiment, there are several rolling grooves, and the rolling grooves are arranged at equal intervals along the circumferential direction of the mounting portion 801, and the limiting groove 4 is arranged corresponding to the rolling groove; the driving member 802 is provided with a yield groove 806 corresponding to the rolling groove; the liquid source equipment is a conventional hydraulic pump equipment in the prior art, and the hydraulic pump equipment is connected to a liquid delivery pipe connected to the liquid cavity 805. The specific structure of the hydraulic pump equipment and when it is necessary to install the inner support clamp 1, the connecting rod 203 clamp 2 and the positioning pin 10, the hydraulic pump is started and high-pressure liquid is input into the liquid cavity 805. The high-pressure liquid pushes the driving member 802 to stretch the tension spring 804, so that the driving member 802 moves toward the outside of the mounting hole 6, and the driving member 802 pushes the ball 803 to protrude outward, and the ball 803 contacts the inner wall of the limiting groove 4 to achieve the positioning and fixation of the inner support clamp 1, the connecting rod 203 clamp 2 and the positioning pin 10. When it is necessary to disassemble the inner support clamp 1, the connecting rod 203 clamp 2 and the positioning pin 10, the hydraulic pump equipment is stopped, the pressure in the liquid chamber 805 drops, the tension spring 804 contracts and drives the driving member 802 to reset, and the ball 803 retracts into the said yield groove 806, so as to facilitate the disassembly of the inner support clamp 1, the connecting rod 203 clamp 2 and the positioning pin 10; through the hydraulic drive and the reset of the tension spring 804, the inner support clamp 1, the connecting rod 203 clamp 2 and the positioning pin 10 are quickly positioned and fixed, and the operation is convenient and quick.

[0059] This embodiment also discloses a method for processing the cylinder body 15, including a fixture structure. Specifically, the method for processing the cylinder body 15 includes the following steps:

[0060] Step 1: Rough milling is performed on the top surface and left and right side surfaces of the cylinder body 15, and the process holes set on the top surface of the cylinder body 15 and the plug holes set on the side surfaces of the cylinder body 15 are processed;

[0061] Step 2: Rough milling of the front and rear end surfaces, bottom surface and bearing seat surface of the cylinder block 15, rough boring of the crankshaft hole and drilling of the main oil passage;

[0062] Step 3: Perform precision milling on the bottom surface, bearing seat surface, and left and right side surfaces of the cylinder body 15, and process the threaded holes on the left and right side surfaces;

[0063] Step 4: Process the oil grooves, slip grooves and threaded holes on the front and rear end surfaces of the cylinder body 15;

[0064] Step 5: Pressure test the processed cylinder block 15 and install the bearing cover;

[0065] Step 6: Fine milling of the top surface and front and rear end surfaces of the cylinder block 15, processing of the pin holes on the front and rear end surfaces and the top surface, fine boring of the cylinder hole and the crankshaft hole.

[0066] In step 1, according to the size and shape of the cylinder body 15, suitable expansion clamps 8, rotary clamps 8 and sliding clamps 8 are selected, and they are installed on the base plate 5 through the cooperation of the flexible positioner and the limit groove 4 to form a clamp structure, and the cylinder body 15 is fixed, and the cylinder body 15 is positioned by the bearing seat surface, and the cylinder body 15 is processed using corresponding processing equipment; in steps 2, 3 and 4, suitable expansion clamps 8, rotary clamps 8 and sliding clamps 8 are selected, and they are installed on the base plate 5 through the cooperation of the flexible positioner and the limit groove 4 to form a clamp structure, and the cylinder body 15 is fixed, and the cylinder body 15 is positioned by positioning the top surface and the top surface process holes, and the cylinder body 15 is processed using corresponding processing equipment. The equipment processes the cylinder body 15; in step 5, the conventional pressure testing equipment in the prior art is used to test the pressure of the cylinder body 15, and its structure and function are not explained here one by one; in step 6, according to the size and shape of the cylinder body 15, a suitable expansion clamp 8, rotary clamp 8 and sliding clamp 8 are selected, and the cylinder body 15 is fixed after being installed on the base plate 5 by the cooperation of the flexible positioner and the limit groove 4 to form a clamp structure, and the cylinder body 15 is positioned by positioning the bottom surface and the bottom surface pin hole, and the cylinder body 15 is processed using the corresponding processing equipment; the processing equipment is conventional processing equipment in the prior art, and the specific structure and function of the processing equipment are not explained here. During the processing, according to different processing procedures and requirements, the position, quantity and angle of the expansion clamp 8, rotary clamp 8 and sliding clamp 8 can be adjusted to ensure processing accuracy.

[0067] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A clamp structure, characterized in that: It comprises an inner support clamp (1), a connecting rod clamp (2) and a connecting plate (3), wherein the bottom ends of the inner support clamp (1) and the connecting rod clamp (2) are provided with a limiting groove (4); A base plate (5) is slidably mounted on the connecting plate (3), a plurality of mounting holes (6) are provided on the base plate (5), and a locking member (7) is installed on the base plate (5); a clamp (8) is provided in the mounting hole (6); the clamp (8) is used to cooperate with the limiting groove (4) to fix the inner support clamp (1) and the connecting rod clamp (2), and an airbag assembly (9) is installed on the inner support clamp (1); The connecting plate (3) is used for being mounted on a driving device, and the driving device is used for driving the base plate (5) to move.

2. A clamp structure according to claim 1, characterized in that: The internal support clamp (1) comprises a tensioning sleeve (101), a fixing member (102) and a driving mechanism (103); the limiting groove (4) is arranged at the bottom end of the fixing member (102); the tensioning sleeve (101) is slidably mounted on the fixing member (102); the driving mechanism (103) is provided with a first driving surface (104) for driving the tensioning sleeve (101) to expand; the tensioning sleeve (101) is provided with a stress groove (105); and the airbag assembly (9) is mounted on the tensioning sleeve (101).

3. A clamp structure according to claim 2, characterized in that: The fixing member (102) is provided with a second driving surface (106) for driving the expansion sleeve (101).

4. A clamp structure according to claim 3, characterized in that: The airbag assembly (9) comprises a first airbag (901), a second airbag (902) and an air tube (903); the first airbag (901) is connected to the side of the expansion sleeve (101) in contact with the cylinder (15); the second airbag (902) is connected to the side of the expansion sleeve (101) away from the cylinder (15); the first airbag (901) and the second airbag (902) are connected via the air tube (903).

5. The clamp structure according to claim 1, characterized in that: The connecting rod clamp (2) comprises a telescopic device (201), a pressure block (202) and a connecting rod (203); the bottom end of the device is provided with the limiting groove (4); the pressure block (202) is rotatably connected to the telescopic end of the telescopic device (201); one end of the connecting rod (203) is connected to the fixed end of the telescopic device (201), and the other end is rotatably connected to the pressure block (202).

6. The clamp structure according to claim 5, characterized in that: A positioning pin (10) is installed on the base plate (5), and the bottom end of the positioning pin (10) is provided with the limiting groove (4).

7. The clamp structure according to claim 6, characterized in that: A sliding groove is provided in the positioning pin (10), a buffer block (11) is slidably installed in the sliding groove, a spring (12) is connected to the sliding groove, and the buffer block (11) and the sliding groove are connected via the spring (12).

8. The clamp structure according to claim 7, characterized in that: A cushion block (13) is fixedly connected to the bottom end of the buffer block (11).

9. The clamp structure according to claim 1, characterized in that: The clamp (8) includes a mounting portion (801), a driving member (802), a ball (803) and a tension spring (804); a liquid cavity (805) is provided in the base plate (5); a liquid source device for inputting high-pressure liquid into the liquid cavity (805) is connected to the base plate (5); the driving member (802) is slidably mounted in the mounting portion (801), and the driving member (802) is connected to the mounting hole (6) through the tension spring (804); a rolling groove is provided on the mounting portion (801), and the ball (803) is slidably mounted in the rolling groove.

10. A method for processing a cylinder body (15), characterized in that: A method for processing a cylinder body (15) using a fixture structure according to any one of claims 1 to 9, comprising the following steps: Step 1: Rough milling is performed on the top surface and left and right side surfaces of the cylinder body (15), and the process holes set on the top surface of the cylinder body (15) and the plug holes set on the side surfaces of the cylinder body (15) are processed; Step 2: Rough milling of the front and rear end faces, bottom surface and bearing seat surface of the cylinder block (15), rough boring of the crankshaft hole and drilling of the main oil passage; Step 3: Fine milling the bottom surface, bearing seat surface, and left and right side surfaces of the cylinder body (15), and processing the threaded holes on the left and right side surfaces; Step 4: Processing the oil grooves, slip grooves and threaded holes on the front and rear end surfaces of the cylinder body (15); Step 5: Pressure test the processed cylinder block (15) and install the bearing cover; Step 6: Fine milling of the top surface and front and rear end surfaces of the cylinder block (15), processing of the pin holes on the front and rear end surfaces and the top surface, fine boring of the cylinder hole and the crankshaft hole.

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