Cylinder body positioning and clamping device and cylinder body pressing structure

Abstract

The utility model discloses a cylinder body positioning and clamping device and a cylinder body pressing structure, the cylinder body positioning and clamping device comprises a supporting assembly, a driving assembly and at least two groups of positioning and clamping assemblies, the first group of positioning and clamping assembly comprises a first guide rod and a first positioning sliding block, and the end part of the first guide rod is an inclined surface; the first positioning and clamping assembly comprises a first guide rod and two oppositely-arranged first positioning sliding blocks, the first guide rod is driven by a push cylinder to move up and down to push the first positioning sliding blocks to move oppositely to enter a first station, and centering, clamping and orientation in the first direction are achieved. The second guide rod is driven by the push cylinder to move up and down to push the two second positioning sliding blocks to move reversely to enter a second station, and centering clamping orientation in the second direction is achieved. Blank positioning is conducted on the cylinder body through the cylinder hole, the positioning piece is arranged in the supporting sleeve, the structure of the inclined wedge block driven by the push cylinder is matched with the supporting nail, synchronous centering clamping is achieved, the wall thickness of the machined cylinder hole is uniform, and the consistency of the cylinder hole is easier to guarantee.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a cylinder positioning and clamping device and a cylinder pressing structure. Background Technology

[0002] Cylinder block rough machining refers to the preliminary processing of the cylinder block using mechanical equipment to remove burrs, imbalances, and other surface defects. In existing technologies using cylinder block shape positioning, due to deviations in the casting blank, manual intervention is still required when the cylinder block's dimensional deviation is significant. This not only increases labor costs but may also affect positioning accuracy. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to realize an automatic correction and clamping cylinder body and a cylinder body positioning and clamping device and a cylinder body pressing structure.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A cylinder positioning and clamping device includes a support assembly, a drive assembly, and at least two sets of positioning and clamping assemblies. The positioning and clamping assemblies include a first set and a second set. The drive assembly includes a push cylinder. The support assembly includes a support sleeve, which includes a second support sleeve and at least two sets of first support sleeves. A first working position is formed between the at least two sets of first support sleeves, and a second working position is formed circumferentially by the second support sleeve. The first set of positioning and clamping assemblies is located within at least two of the first support sleeves. The first set of positioning and clamping assemblies includes a first guide rod and a first positioning slider. The end of the first guide rod is inclined, and the inclined surface is in contact with the surface of the first positioning slider. When the first guide rod is driven by the push cylinder to move up and down, it pushes the first positioning slider to move towards each other and enter the first working position, thereby achieving centering and clamping orientation in the first direction. The second set of positioning and clamping components is located inside the second support sleeve. The second set of positioning and clamping components includes a second guide rod and two opposing second positioning sliders. The end of the second guide rod is an inclined surface. When the second guide rod is driven by the push cylinder to move up and down, it pushes the two second positioning sliders to move in opposite directions and enter the second working position, thereby achieving centering and clamping orientation in the second direction. The positioning and clamping components also include support pins. The first positioning slider and the second positioning slider are respectively fixed by the support pins.

[0006] Preferably, the cylinder positioning and clamping device further includes a base assembly, the base assembly including a base and a boss located in the middle of the base, two first support sleeves are arranged adjacently and fixed on the boss, and the second support sleeve is arranged side by side with the first support sleeve and fixed on the base.

[0007] Preferably, the support assembly further includes a cover plate, a connector, a centering transition block, and a positioning plate. The centering transition block, the connector, and the positioning plate are located within the boss. The cover plate is bolted to the support sleeve. The support sleeve is connected to the positioning plate via the centering transition block. The positioning plate is fixedly connected to the base. The push cylinder is bolted to the positioning plate. The push cylinder moves up and down under hydraulic pressure. The push cylinder is connected to the guide rod via the connector.

[0008] Preferably, there are two sets of the first support sleeves.

[0009] Preferably, the opposing surfaces of the two second positioning sliders form an inverted V-shaped slope, and the shape of the slope at the end of the second guide rod matches the inverted V-shaped slope.

[0010] Preferably, there are two sets of the second set of positioning and clamping components, with the two sets of the second set of positioning and clamping components located on both sides of the first set of positioning and clamping components.

[0011] Preferably, the cylinder positioning and clamping device further includes a clamping assembly located outside the support sleeve.

[0012] Preferably, the clamping assembly includes a pressure head and a driving component. The driving component includes a pressure plate, a connecting plate, a cylinder mounting base, a lever cylinder, and a cylinder seat. The lever cylinder is fixed to the support sleeve via the cylinder mounting base, and the pressure plate is connected to the connecting plate.

[0013] Preferably, the pressure head includes a pressure block, a pressure block connecting block, and a pin. The pressure block is connected to the pressure block connecting block and the pin. The lever cylinder drives the pressure block to move under hydraulic pressure, thereby performing main clamping on the cylinder body.

[0014] A cylinder clamping structure includes the aforementioned cylinder positioning and clamping device, and also includes a cylinder, the cylinder including a plurality of cylinder holes arranged in parallel, a sidewall formed between two adjacent cylinder holes in the middle, the sidewall being located at a first working position, and the cylinder holes on both sides being located at a second working position.

[0015] Compared with existing technologies, the cylinder positioning and clamping device of this utility model has the following advantages:

[0016] This application's cylinder block positioning and clamping device uses the cylinder bore to position the cylinder block blank. A positioning component is installed inside the support sleeve. Through the structure of the push cylinder driving the inclined wedge block and the support pin, synchronous centering and clamping are achieved. The cylinder bore wall thickness is uniform after machining, and the consistency of the cylinder bore is easier to ensure. After the initial calibration and debugging of the fixture, subsequent machining does not require adjustment of the fixture. By setting a clamping component on the outside of the support sleeve, tool interference is avoided, clamping force is guaranteed during heavy cutting, and the openness is greater to meet the machining of the cylinder block at multiple angles. The positioning and clamping mechanism uses a combination of positioning and clamping components and clamping components to position and clamp multiple cylinder bores, saving fixture space. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the cylinder positioning and clamping device of this application;

[0018] Figure 2 This is a structural cross-sectional view of the cylinder positioning and clamping device of this application;

[0019] Figure 3 for Figure 2 Enlarged schematic diagram of structure A;

[0020] Figure 4 for Figure 1 Another perspective of the structural cross-section;

[0021] Figure 5 for Figure 4 Enlarged schematic diagram of structure B;

[0022] Figure 6 This is a side view of the cylinder positioning and clamping device of this application;

[0023] Figure 7 This is a top view of the cylinder bore clamping structure of this application.

[0024] In the diagram: 100, base assembly; 101, base; 102, boss; 200, positioning and clamping assembly; 201, first set of positioning and clamping assemblies; 2011, first guide rod; 2012, first positioning slider; 202, second set of positioning and clamping assemblies; 2021, second guide rod; 2022, second positioning slider; 203, support pin; 300, support assembly; 301, cover plate; 302, support sleeve; 3021, First support sleeve; 3022, Second support sleeve; 303, Connector; 304, Centering transition block; 305, Positioning plate; 306, Support bar; 400, Clamping assembly; 401, Clamping block; 402, Clamping block connecting block; 403, Pin; 404, Clamping plate; 405, Connecting plate; 406, Hydraulic cylinder mounting seat; 407, Lever cylinder; 408, Hydraulic cylinder seat; 500, Push cylinder; 600, Cylinder body. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or it can be fixed through another intermediate component. When a component is said to be "connected to" another component, it can be directly connected to the other component or it may be fixed through another intermediate component. When a component is said to be "set on" another component, it can be set directly on the other component or it may be set through another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Figures 1 to 7This utility model discloses a cylinder positioning and clamping device and a cylinder bore pressing structure. The cylinder positioning and clamping device includes a support assembly 300, a drive assembly, and at least two sets of positioning and clamping assemblies 200. Each positioning and clamping assembly 200 includes a first set of positioning and clamping assemblies 201 and a second set of positioning and clamping assemblies 202. The drive assembly includes a push cylinder 500. The support assembly 300 includes a support sleeve 302, which includes a second support sleeve 3022 and at least two sets of first support sleeves 3021. A first working position is formed between the at least two sets of first support sleeves 3021, and a second working position is formed circumferentially by the second support sleeve 3022. The first set of positioning and clamping assemblies 201 is located within at least two of the first support sleeves 3021. The first set of positioning and clamping assemblies 201 includes a first guide rod 2011 and a first positioning slider 2012. The end of the first guide rod 2011 is an inclined surface, which... The surface of the first positioning slider 2012 is in contact with the first guide rod 2011 located in at least two first support sleeves 3021. Driven by the push cylinder 500, the first guide rod 2011 moves up and down, pushing the first positioning slider 2012 to move towards each other into the first station, realizing centering and clamping orientation in the first direction. The second set of positioning and clamping components 202 is located in the second support sleeve 3022. The second set of positioning and clamping components 202 includes a second guide rod 2021 and two opposing second positioning sliders 2022. The end of the second guide rod 2021 is inclined. Driven by the push cylinder 500, the second guide rod 2021 moves up and down, pushing the two second positioning sliders 2022 to move in opposite directions into the second station, realizing centering and clamping orientation in the second direction. The positioning and clamping components 200 also include a support pin 203. The first positioning slider 2012 and the second positioning slider 2022 are fixed by the support pin 203.

[0029] The cylinder positioning and clamping device also includes a base assembly 100, which includes a base 101 and a boss 102 located in the middle of the base 101. Two adjacent first support sleeves 3021 are arranged and fixed on the boss 102, and a second support sleeve 3022 is arranged in parallel with the first support sleeves 3021 and fixed on the base 101.

[0030] like Figure 2 , 3 As shown, the first set of positioning and clamping components 201 is located inside the first support sleeve 3021. The first set of positioning and clamping components 201 includes a first guide rod 2011 and a first positioning slider 2012 that fits against the inclined surface of the first guide rod 2011. Under the up-and-down action of the first guide rod 2011, the first positioning slider 2012 simultaneously pushes the cylinder bore sidewall between two adjacent first support sleeves 3021, forming a centering and clamping orientation in the first direction. The cylinder bore wall thickness is uniform after machining, and the consistency of the cylinder bore blank is easier to ensure.

[0031] like Figure 4 , 5As shown, the second set of positioning and clamping components 202 includes a second guide rod 2021 and two opposing second positioning sliders 2022. The opposing surfaces of the two second positioning sliders 2022 form an inverted V-shaped slope. The shape of the slope at the end of the second guide rod 2021 matches the inverted V-shaped slope. Under the up-and-down action of the second guide rod 2021, the second positioning sliders 2022 push the cylinder bore sidewall of the outer periphery of the second support sleeve 3022 to form a centering and clamping orientation in the second direction.

[0032] In one embodiment of this application, the first direction is the X direction and the second direction is the Y direction.

[0033] The cylinder positioning and clamping device also includes a support assembly 300, which further includes a cover plate 301, a connector 303, a centering transition block 304, and a positioning plate 305. The cover plate 301 is bolted to the support sleeve 302. The centering transition block 304, connector 303, and positioning plate 305 are located within the boss 102. The push cylinder 500 is bolted to the positioning plate 305. The support sleeve 302 is connected to the positioning plate 305 via the centering transition block 304. The positioning plate 305 is fixedly connected to the base 101. The push cylinder 500 moves up and down under hydraulic pressure. The push cylinder 500 is connected to the guide rod via the connector 303. The support rod 306 is fixed to the positioning plate 305. Under hydraulic pressure, the lever cylinder 407 presses the cylinder 600, and then the support rod 306 provides auxiliary support for the cylinder 600.

[0034] like Figure 6 As shown, the cylinder positioning and clamping device also includes a clamping component 400, which is located outside the support sleeve 302.

[0035] The clamping assembly 400 includes a clamping head and a driving component. The driving component includes a clamping plate 404, a connecting plate 405, a cylinder mounting base 406, a lever cylinder 407, and a cylinder seat 408. The lever cylinder 407 is fixed to the support sleeve 302 via the cylinder mounting base 406, and the clamping plate 404 is connected to the connecting plate 405. By setting the clamping assembly 400 on the outside of the cylinder bore, tool interference is avoided, clamping force is guaranteed during heavy cutting, and the openness is greater, which can meet the machining of the cylinder body at angles of more than 600 degrees.

[0036] Specifically, the lever cylinder 407 is fixed to the base 101 by the cylinder seat 408.

[0037] The pressure head includes a pressure block 401, a pressure block connecting block 402, and a pin 403. The pressure block 401 is connected to the pressure block connecting block 402 and the pin 403. The lever cylinder 407 drives the pressure block 401 to move under hydraulic pressure, thereby performing main clamping on the cylinder body 600.

[0038] like Figure 7As shown, a cylinder pressing structure includes a cylinder positioning and clamping device and a cylinder 600. The cylinder 600 includes a plurality of cylinder holes arranged in parallel, with a sidewall formed between two adjacent cylinder holes in the middle. The sidewall is located at a first working position, and the cylinder holes on both sides are located at a second working position.

[0039] In this embodiment, the number of cylinder bores is four. In other embodiments, the number of cylinder bores is six or eight, etc.

[0040] In this application, the cylinder positioning and clamping device, when in use, has a cover plate 301 and a support sleeve 302 connected by screws, providing support and sealing for the cylinder bore; the push cylinder 500 moves up and down under hydraulic pressure, and is connected to the guide rod by threads. When the push cylinder 500 moves, it drives the first guide rod 2011 inside the first support sleeve 3021 to move up and down. The first guide rod 2011 drives the first positioning slider 2012 to move back and forth via an inclined surface. The support pin 203 is threadedly connected to the first positioning slider 2012 and pushes the sidewall of the cylinder bore; similarly, the adjacent first support... The first set of positioning and clamping components 201 inside sleeve 3021 moves synchronously to push the cylinder bore sidewall, so that the cylinder body 600 is centered and clamped in the X direction under the synchronous push of the support pins 203 on both sides; the push cylinder 500 is fixed to the positioning plate 305 by bolts, and the support sleeve 302 is connected to the positioning plate 305 through the centering transition block 304. The push cylinder 500 moves up and down under the action of hydraulic pressure. The push cylinder 500 is connected to the connector 303 and the second guide rod 2021. When the push cylinder 500 moves, it drives the second guide rod 2021 inside the second support sleeve 3022 to move up and down. The second guide rod 2021 drives the second positioning slider 2022 to move back and forth via an inverted V-shaped inclined surface. The support pin 203 is threadedly connected to the second positioning slider 2022. The support pin 203 performs Y-axis centering and clamping orientation on the cylinder bore sidewall of the second support sleeve 3022. At the same time, the second set of positioning clamping components 202 of the other second support sleeve 3022 also operates to perform Y-axis centering and clamping orientation. After the cylinder body 600 completes the X and Y-axis positioning actions, the lever cylinder 407 is fixed to the support sleeve 302 via the cylinder mounting seat 406, and the support rod 306 is fixed to the positioning plate 305. The lever cylinder 407 presses the cylinder body 600 under hydraulic pressure, and then the cylinder body 600 is further supported by the support rod 306. The lever cylinder 407 is fixed on the base 101 by the cylinder seat 408. The pressure plate 404 is connected to the connecting plate 405. The pressure block 401 is connected by the pressure block connecting block 402 and the pin 403. Under the action of hydraulic pressure, the lever cylinder 407 drives the pressure plate 404 to move. The pressure block 401, through the pressure block connecting block 402 and the pin 403, performs the main pressing on the cylinder body 600 under the action of the pressure plate 404. The orientation and clamping of the cylinder body 600 are completed.

[0041] This application's cylinder positioning and clamping device positions the cylinder body 600 blank using the cylinder bore. A positioning and clamping component 200 is installed inside the support sleeve 302. The structure of the inclined wedge block driven by the push cylinder 500, in conjunction with the support pin 203, achieves synchronous centering and clamping. The cylinder bore wall thickness is uniform after machining, and the consistency of the cylinder bore blank is easier to ensure. After the initial calibration and debugging of the fixture, subsequent machining does not require further adjustment of the fixture. By setting a clamping component 400 on the outside of the support sleeve 302, tool interference is avoided, clamping force is ensured during heavy cutting, and the openness is greater to meet the machining of the cylinder body 600 at multiple angles. The combination of the positioning and clamping component 200 and the clamping component 400 forms a positioning and clamping mechanism to position and clamp the cylinder bore, saving fixture space.

[0042] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model. These are all equivalent modifications and improvements made to the above embodiments based on the essential technology of this utility model, and all of these fall within the protection scope of this utility model.

Claims

1. A cylinder positioning and clamping device, characterized in that: The system includes a support assembly, a drive assembly, and at least two sets of positioning and clamping assemblies. The positioning and clamping assemblies include a first set and a second set. The drive assembly includes a push cylinder. The support assembly includes a support sleeve, which includes a second support sleeve and at least two sets of first support sleeves. A first working position is formed between the at least two sets of first support sleeves, and a second working position is formed circumferentially by the second support sleeve. The first set of positioning and clamping assemblies is located within at least two of the first support sleeves. The first set of positioning and clamping assemblies includes a first guide rod and a first positioning slider. The end of the first guide rod is inclined, and the inclined surface is in contact with the surface of the first positioning slider. A guide rod moves up and down under the drive of the push cylinder, pushing the first positioning slider to move towards each other and enter the first working position, thereby achieving centering and clamping orientation in the first direction. The second set of positioning and clamping components is located inside the second support sleeve. The second set of positioning and clamping components includes a second guide rod and two opposing second positioning sliders. The end of the second guide rod is an inclined surface. The second guide rod moves up and down under the drive of the push cylinder, pushing the two second positioning sliders to move in opposite directions and enter the second working position, thereby achieving centering and clamping orientation in the second direction. The positioning and clamping components also include support pins. The first positioning slider and the second positioning slider are respectively fixed by the support pins.

2. The cylinder positioning and clamping device according to claim 1, characterized in that: The cylinder positioning and clamping device further includes a base assembly, which includes a base and a boss located in the middle of the base. Two first support sleeves are arranged adjacent to each other and fixed on the boss, and the second support sleeve is arranged side by side with the first support sleeve and fixed on the base.

3. The cylinder positioning and clamping device according to claim 2, characterized in that: The support assembly further includes a cover plate, a connector, a centering transition block, and a positioning plate. The centering transition block, the connector, and the positioning plate are located inside the boss. The cover plate is connected to the support sleeve by bolts. The support sleeve is connected to the positioning plate through the centering transition block. The positioning plate is fixedly connected to the base. The push cylinder is fixed to the positioning plate by bolts. The push cylinder moves up and down under hydraulic pressure. The push cylinder is connected to the guide rod through the connector.

4. The cylinder positioning and clamping device according to claim 1, characterized in that: There are two sets of the first support sleeve.

5. The cylinder positioning and clamping device according to claim 1, characterized in that: The two second positioning sliders form an inverted V-shaped slope on their opposing surfaces, and the shape of the slope at the end of the second guide rod matches the inverted V-shaped slope.

6. The cylinder positioning and clamping device according to claim 1, characterized in that: The second set of positioning and clamping components consists of two sets, with the two second set of positioning and clamping components located on both sides of the first set of positioning and clamping components.

7. The cylinder positioning and clamping device according to claim 1, characterized in that: The cylinder positioning and clamping device also includes a clamping assembly, which is located on the outside of the support sleeve.

8. The cylinder positioning and clamping device according to claim 7, characterized in that: The clamping assembly includes a pressure head and a driving component. The driving component includes a pressure plate, a connecting plate, a cylinder mounting base, a lever cylinder, and a cylinder seat. The lever cylinder is fixed to the support sleeve via the cylinder mounting base, and the pressure plate is connected to the connecting plate.

9. The cylinder positioning and clamping device according to claim 8, characterized in that: The pressure head component includes a pressure block, a pressure block connecting block, and a pin. The pressure block is connected to the pressure block connecting block and the pin. The lever cylinder drives the pressure block to move under hydraulic pressure, thereby performing main clamping on the cylinder body.

10. A cylinder block clamping structure, comprising the cylinder block positioning and clamping device as described in any one of claims 1 to 9, characterized in that: It also includes a cylinder body, which includes a plurality of cylinder bores arranged in parallel, with a sidewall formed between two adjacent cylinder bores in the middle. The sidewall is located at the first working position, and the cylinder bores on both sides are located at the second working position.

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