A cylinder positioning jig

Abstract

The utility model relates to cylinder body machining equipment technical field especially relates to a kind of cylinder body positioning fixture, including support base, X-axis limiting component, Y-axis limiting component, Z-axis limiting component and three-axis positioning assembly, wherein, the three-axis positioning assembly is set on the support base, for with the X-axis direction, Y-axis direction and Z-axis direction of the cylinder body abutment;The X-axis limiting component is set on the support base, and can reciprocate along X-axis, for with the three-axis positioning assembly cooperation limit the cylinder body displacement along X-axis;The Y-axis limiting component is set on the support base, and can reciprocate along Y-axis. It can be positioned from X-axis, Y-axis, Z-axis three directions to cylinder body, realize the accurate positioning of cylinder body all-around, ensure the stability of cylinder body in processing process, to improve the machining precision of engine cylinder body, and through three-axis positioning assembly makes cylinder body only be unidirectional constraint, avoid positioning deviation.

Description

Technical Field

[0001] This utility model relates to the field of cylinder block processing equipment technology, and in particular to a cylinder block positioning fixture. Background Technology

[0002] As the skeleton of an internal combustion engine, the cylinder block's core function is to provide a stable space for piston movement and combustion reactions, and to bear various loads during engine operation. The machining accuracy of the cylinder block directly affects the engine's performance and lifespan. To ensure the precision of the cylinder block products, fixtures are needed for positioning and machining.

[0003] The existing Chinese invention patent with publication number CN116833796A discloses a cylinder positioning machining fixture and control method. The cylinder is limited in the lateral direction by the bearing stop positioning block and the elastic buckles in the first cylinder support column and the second cylinder support column; the cylinder is limited in the longitudinal direction by the downward pressing of the cylinder pressing connecting rod and the bearing stop height limiting block.

[0004] In the above scheme, only the transverse and longitudinal directions are constrained and limited, and there is no active limit in the axial direction. This will cause the cylinder to slide slightly in the axial direction during processing, resulting in deviations in the cylinder's machining dimensions. Moreover, when constraining and limiting the cylinder, a bidirectional moving clamping method is used, which will cause displacement of the cylinder and lead to positioning deviations. Utility Model Content

[0005] To overcome at least one of the defects described in the prior art, this utility model provides a cylinder block positioning fixture. It can limit the cylinder block in three directions—X-axis, Y-axis, and Z-axis—achieving precise positioning of the cylinder block from all directions, ensuring the stability of the cylinder block during processing, thereby improving the machining accuracy of the engine cylinder block. Furthermore, the three-axis positioning assembly ensures that the cylinder block is constrained in only one direction, avoiding positioning deviations.

[0006] The technical solution of this utility model is implemented as follows: A cylinder positioning fixture for positioning and clamping a cylinder, characterized in that it includes a support base, an X-axis limiting component, a Y-axis limiting component, a Z-axis limiting component, and a three-axis positioning component. The three-axis positioning component is disposed on the support base and abuts against the cylinder in the X-axis, Y-axis, and Z-axis directions. The X-axis limiting component is disposed on the support base and is capable of reciprocating along the X-axis, cooperating with the three-axis positioning component to limit the cylinder's displacement along the X-axis. The Y-axis limiting component is disposed on the support base and is capable of reciprocating along the Y-axis, cooperating with the three-axis positioning component to limit the cylinder's displacement along the Y-axis. The Z-axis limiting component is disposed on the support base and is capable of reciprocating along the Z-axis, cooperating with the three-axis positioning component to limit the cylinder's displacement along the Z-axis.

[0007] Based on the above technical solutions, preferably, the support base includes a base body, a support plate, and a placement plate, wherein the support plate is disposed in the Z-axis direction of the base body; and the placement plate is disposed in the Z-axis direction of the base body.

[0008] Based on the above technical solutions, preferably, the three-axis positioning assembly includes an X-axis positioning block, a Y-axis positioning block, and a Z-axis positioning block, wherein the X-axis positioning block is disposed on the support plate and is used to abut against the X-axis direction of the cylinder; the Y-axis positioning block is disposed on the placement plate and is used to abut against the Y-axis direction of the cylinder; and the Z-axis positioning block is disposed on the placement plate and is used to abut against the Z-axis direction of the cylinder.

[0009] Based on the above technical solutions, preferably, the X-axis limiting component includes a first X-axis hydraulic device and a first pressure block, wherein the first X-axis hydraulic device is disposed on the support plate; the first pressure block is drivenly connected to the output end of the first X-axis hydraulic device, and the first pressure block can move along the X-axis direction to cooperate with the X-axis positioning block to clamp the cylinder.

[0010] Based on the above technical solutions, preferably, the X-axis limiting component further includes a second X-axis hydraulic device and a second pressure block, wherein the second X-axis hydraulic device is disposed on the placement plate; the second pressure block is drivenly connected to the output end of the second X-axis hydraulic device, and the second pressure block can cooperate with the X-axis positioning block to clamp the cylinder along the X-axis direction.

[0011] Based on the above technical solutions, preferably, the Y-axis limiting component includes a Y-axis hydraulic device and a third pressure block, wherein the Y-axis hydraulic device is disposed on the support plate; the third pressure block is drivenly connected to the output end of the Y-axis hydraulic device, and the third pressure block can move along the Y-axis direction to cooperate with the Y-axis positioning block to clamp the cylinder.

[0012] Based on the above technical solutions, preferably, the Z-axis limiting component includes a first Z-axis hydraulic device and a fourth pressure block, wherein the first Z-axis hydraulic device is disposed on the support plate; the fourth pressure block is drivenly connected to the output end of the first Z-axis hydraulic device, and the fourth pressure block can move along the Z-axis direction to cooperate with the Z-axis positioning block to clamp the cylinder.

[0013] Based on the above technical solutions, preferably, the Z-axis limiting assembly further includes a second Z-axis hydraulic device and a fifth pressure block, wherein the second Z-axis hydraulic device is disposed on the placement plate; and the fifth pressure block is drivenly connected to the output end of the second Z-axis hydraulic device.

[0014] Based on the above technical solutions, preferably, the fourth pressure block is conical and abuts against the cavity of the cylinder body.

[0015] Based on the above technical solutions, preferably, the fifth pressure block is conical and abuts against the cavity of the cylinder body.

[0016] In summary, the cylinder positioning fixture provided by this utility model has the following advantages over the prior art: (1) By using X-axis limiting components, Y-axis limiting components and Z-axis limiting components, along with three-axis positioning components, the cylinder block is constrained and positioned in three dimensions, which can greatly improve the machining accuracy of the cylinder block; (2) By setting the three-axis positioning assembly on the support base, the cylinder body is only constrained and clamped in one direction, avoiding the positioning deviation of the cylinder body caused by bidirectional clamping; (3) By using unidirectional constraint clamping, the cylinder body is in contact with the X-axis positioning block, Y-axis positioning block and Z-axis positioning block when placed. When disassembling or placing the cylinder body, only the unidirectional X-axis limiting component, Y-axis limiting component and Z-axis limiting component need to be separated from or in contact with the cylinder body, which makes the operation simple and quick. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model; Figure 2 This is a first-view sectional view of an embodiment of the present utility model; Figure 3 This is a second-view sectional view of an embodiment of the present utility model; Figure 4 This is a schematic diagram of the planar structure of an embodiment of the present utility model; Figure 5 This is a schematic diagram of the cylinder block structure according to an embodiment of the present utility model; Figure 6 This is a schematic diagram of the three-axis positioning assembly according to an embodiment of the present utility model; Figure 7 This is a schematic diagram of the X-axis positioning block according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the Y-axis positioning block according to an embodiment of the present invention; Figure 9This is a schematic diagram of the Z-axis positioning block according to an embodiment of the present invention.

[0019] The meanings of the reference numerals in the attached drawings are as follows: 1. Cylinder body; 11. Base plate; 12. Boss; 13. Cavity; 2. Support base; 21. Base body; 22. Support plate; 221. Positioning box; 23. Placement plate; 3. X-axis limiting assembly; 31. First X-axis hydraulic device; 32. First pressure block; 33. Second X-axis hydraulic device; 34. Second pressure block; 4. Y-axis limiting assembly; 41. Y-axis hydraulic device; 42. Third pressure block; 5. Z-axis limiting assembly; 51. First Z-axis hydraulic device; 52. Fourth pressure block; 53. Second Z-axis hydraulic device; 54. Fifth pressure block; 6. Three-axis positioning assembly; 61. X-axis positioning block; 611. First mounting plate; 612. X-axis locking block; 62. Y-axis positioning block; 621. Second mounting plate; 622. Y-axis locking block; 63. Z-axis positioning block; 631. Third mounting plate; 632. Z-axis locking block. Detailed Implementation

[0020] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0021] See Figures 1-9This utility model discloses a cylinder body 1 positioning clamp for positioning and clamping the cylinder body 1. It includes a support base 2, an X-axis limiting component 3, a Y-axis limiting component 4, a Z-axis limiting component 5, and a three-axis positioning component 6. The three-axis positioning component 6 is disposed on the support base 2 and abuts against the cylinder body 1 in the X-axis, Y-axis, and Z-axis directions. The X-axis limiting component 3, Y-axis limiting component 4, and Z-axis limiting component 5 are all disposed on the support base 2. The X-axis limiting component 3 can reciprocate along the X-axis to cooperate with the three-axis positioning component 6 to limit the displacement of the cylinder body 1 along the X-axis; the Y-axis limiting component 4 can reciprocate along the Y-axis to cooperate with the three-axis positioning component 6 to limit the displacement of the cylinder body 1 along the Y-axis; and the Z-axis limiting component 5 can reciprocate along the Z-axis to cooperate with the three-axis positioning component 6 to limit the displacement of the cylinder body 1 along the Z-axis. In this application, the cylinder block 1 is limited from three directions—X-axis, Y-axis, and Z-axis—by means of the X-axis limiting component 3, Y-axis limiting component 4, and Z-axis limiting component 5, in conjunction with the three-axis positioning component 6. This enables precise positioning of the cylinder block 1 in all directions, ensuring its stability during machining and thereby improving the machining accuracy of the engine cylinder block 1, thus guaranteeing the engine's performance and lifespan. The three-axis positioning component 6 ensures that the cylinder block 1 is clamped under unidirectional constraint, preventing positioning deviations caused by bidirectional clamping.

[0022] See Figure 5 As shown, in this embodiment, the cylinder body 1 has a base plate 11 and a boss 12. Both the base plate 11 and the boss 12 are provided with cavities 13. When placed, the base plate 11 is positioned close to the support plate 22.

[0023] See Figure 3 and Figure 6 As shown, the support base 2 includes a base body 21, a support plate 22, and a placement plate 23. The support plate 22 is located in the Z-axis direction of the base body 21, and the placement plate 23 is also located in the Z-axis direction of the base body 21. The placement plate 23 and the support plate 22 are arranged sequentially. The height of the support plate 22 is higher than the height of the placement plate 23. The support plate 22 and the base body 21 are L-shaped. The base body 21 provides basic load-bearing capacity for the entire fixture. The support plate 22 provides space for the installation of some three-axis positioning components 6 and some Z-axis limiting components 5. The placement plate 23 can more stably support the cylinder 1.

[0024] See Figure 2 and Figure 4 As shown, in this embodiment, the supporting plate 22 is hollow inside. This design facilitates the installation of other components and also reduces production costs. The base body 21 and the supporting plate 22 are integrally molded, making them a single, complete component, thus improving the overall structural strength and durability.

[0025] See Figure 3 , Figure 4 and Figure 6 As shown, the three-axis positioning assembly 6 includes an X-axis positioning block 61, a Y-axis positioning block 62, and a Z-axis positioning block 63. In this embodiment, the X-axis positioning block 61 is disposed on the support plate 22, and the Y-axis positioning block 62 and the Z-axis positioning block 63 are disposed on the placement plate 23. The X-axis positioning block 61 is used to abut against the X-axis direction of the cylinder body 1, and the Y-axis positioning block 62 is used to abut against the Y-axis direction of the cylinder body 1. During the positioning process of the cylinder body 1, the X-axis positioning block 61 can accurately abut against the X-axis direction of the cylinder body 1 to accurately position the cylinder body 1 from the X-axis direction, the Y-axis positioning block 62 can accurately abut against the Y-axis direction of the cylinder body 1 to accurately position the cylinder body 1 from the Y-axis direction, and the Z-axis positioning block 63 can accurately abut against the Z-axis direction of the cylinder body 1 to accurately position the cylinder body 1 from the Z-axis direction.

[0026] See Figure 7 As shown, specifically, the X-axis positioning block 61 is fixedly mounted on the side of the support plate 22 near the placement plate 23. The support plate 22 provides a stable and robust mounting base for the X-axis positioning block. The X-axis positioning block 61 includes a first mounting plate 611 and an X-axis locking block 612. The first mounting plate 611 and the X-axis locking block 612 are arranged in a stepped manner. Along the Y-axis direction, the width of the X-axis locking block 612 is wider than the width of the first mounting plate 611. This design facilitates the engagement of the X-axis locking block 612 with the bottom plate 11 of the cylinder body 1. Moreover, the first mounting plate 611 and the X-axis locking block 612 are integrally formed, which improves the overall strength and durability of the X-axis positioning block 61. When the X-axis positioning block 61 is positioned with the bottom plate 11 of the cylinder body 1, the outer side of the X-axis locking block 612 along the X-axis direction abuts against the outer side of the bottom plate 11 of the cylinder body 1 along the X-axis direction. In this embodiment, only one X-axis positioning block 61 is required. Setting only one X-axis positioning block 61 reduces the number of components and lowers costs. It should be noted that in other embodiments, the number of X-axis positioning blocks 61 can also be set to multiple, and no specific limitation is made here.

[0027] See Figure 8As shown, specifically, the Y-axis positioning block 62 is fixedly mounted on the top of the placement plate 23 and is positioned close to the support plate 22. The placement plate 23 provides a stable and robust mounting base for the Y-axis positioning block 62. The Y-axis positioning block 62 includes a second mounting plate 621 and a Y-axis locking block 622. The second mounting plate 621 and the Y-axis locking block 622 are arranged in a stepped manner. Along the Y-axis direction, the width of the Y-axis locking block 622 is wider than the width of the second mounting plate 621. This design facilitates the locking of the Y-axis locking block 622 with the bottom plate 11 of the cylinder body 1. Moreover, the second mounting plate 621 and the Y-axis locking block 622 are integrally molded, which improves the overall strength and durability of the Y-axis positioning block 62. When the Y-axis positioning block 62 is positioned with the bottom plate 11 of the cylinder body 1, the outer side of the Y-axis locking block 622 along the Y-axis direction abuts against the outer side of the bottom plate 11 of the cylinder body 1 along the Y-axis direction. When the Y-axis locking block 622 engages with the bottom plate 11 of the cylinder body 1, the top surface of the second mounting plate 621 abuts against the bottom surface of the bottom plate 11 of the cylinder body 1. This design provides longitudinal support for the cylinder body 1 through the Y-axis positioning block 62. In this embodiment, the number of Y-axis positioning blocks 62 is set to two, and they are distributed at both ends of the placement plate 23 along the Y-axis direction. The positioning at both ends is more accurate and ensures the stability of the cylinder body 1 when it is placed. It should be noted that in other embodiments, the number of Y-axis positioning blocks 62 can also be set to one or more, and no specific limitation is made here.

[0028] See Figure 9 As shown, specifically, the Z-axis positioning block 63 is fixedly mounted on the top of the placement plate 23 and is positioned away from the supporting upright plate 22. The placement plate 23 provides a stable and robust mounting base for the Z-axis positioning block 63. The Z-axis positioning block 63 includes a third mounting plate 631 and a Z-axis locking block 632. The third mounting plate 631 and the Z-axis locking block 632 are arranged in a stepped manner. Along the Z-axis direction, the height of the Z-axis locking block 632 is higher than the height of the third mounting plate 631. This design facilitates the engagement of the Z-axis locking block 632 with the boss 12 of the cylinder body 1. Moreover, the integrated design of the third mounting plate 631 and the Z-axis locking block 632 improves the overall strength and durability of the Z-axis positioning block 63. When the Z-axis positioning block 63 is positioned with the boss 12 of the cylinder body 1, the outer side of the Z-axis locking block 632 along the Z-axis direction abuts against the outer side of the boss 12 of the cylinder body 1 along the Z-axis direction. In this embodiment, the number of Z-axis positioning blocks 63 is set to one, which reduces the number of components and lowers the cost. It should be noted that in other embodiments, the number of Z-axis positioning blocks 63 can also be set to multiple, and no specific limitation is made here.

[0029] See Figure 2 and Figure 4As shown, in this embodiment, the X-axis limiting assembly 3 includes a first X-axis hydraulic device 31 and a first pressure block 32. The first X-axis hydraulic device 31 is mounted on the support plate 22. To protect the first X-axis hydraulic device 31 from contamination by the processing environment, a positioning box 221 is provided on one side of the support plate 22. The first X-axis hydraulic device 31 is located inside the positioning box 221. A clearance groove for avoiding the output end of the first X-axis hydraulic device 31 is provided on the side wall of the positioning box 221. The first pressure block 32 is connected to the output end of the first X-axis hydraulic device 31. The first pressure block 32 can move along the X-axis direction to cooperate with the X-axis positioning block 61 to clamp the bottom plate 11 of the cylinder body 1. The first pressure block 32 is positioned opposite to the X-axis positioning block 61, facilitating clamping and fixing. The first pressure block 32 can move stably along the X-axis direction under the drive of the first X-axis hydraulic device 31. After the cylinder body 1 is positioned with the X-axis positioning block, the first pressure block 32 moves accurately to the position of contacting the bottom plate 11 of the cylinder body 1 under the action of the first X-axis hydraulic device 31, and cooperates with the X-axis positioning block 61 to clamp and limit the bottom plate 11 of the cylinder body 1 from two directions of the X-axis. This stable movement and clamping method can effectively avoid the problem of inaccurate limiting caused by the instability of mechanical transmission or human operation error, and provide reliable positioning guarantee for the cylinder body 1 in the X-axis direction.

[0030] See Figure 2 , Figure 4 and Figure 6 As shown, in some embodiments, the X-axis limiting assembly 3 further includes a second X-axis hydraulic device 33 and a second pressure block 34. The second X-axis hydraulic device 33 is disposed on the placement plate 23 and between the Y-axis positioning block 62 and the Z-axis positioning block 63. Alternatively, the second X-axis hydraulic device 33 is disposed below the boss 12 of the cylinder body 1. The second pressure block 34 is connected to the output end of the second X-axis hydraulic device 33. The second pressure block 34 can cooperate with the X-axis positioning block 61 to clamp the boss 12 of the cylinder body 1 along the X-axis direction. Moreover, the extension direction of the second pressure block 34 is the same as the extension direction of the first pressure block 32, and the retraction direction of the second pressure block 34 is also the same as the retraction direction of the first pressure block 32. Since the cylinder body 1 is irregularly shaped, the cylinder body 1 is further clamped and limited by the second X-axis hydraulic device 33 and the second pressure block 34, together with the first X-axis hydraulic device 31 and the first pressure block 32, thereby improving the stability of the clamping and limiting. The bidirectional clamping structure can effectively disperse the processing vibration energy and reduce the impact of vibration on the positioning of the cylinder body 1. Even when one X-axis hydraulic device is subjected to abnormal impact, the other X-axis hydraulic device can still provide a stable clamping force, ensuring the continuity and stability of the processing process.

[0031] See Figure 6As shown, in this embodiment, the Y-axis limiting component 4 includes a Y-axis hydraulic device 41 and a third pressure block 42. The Y-axis hydraulic device 41 is disposed inside the support plate 22 to avoid contamination of the Y-axis hydraulic device 41 by the processing environment. The third pressure block 42 is connected to the output end of the Y-axis hydraulic device 41 and can move along the Y-axis direction to cooperate with the Y-axis positioning block 62 to clamp the bottom plate 11 of the cylinder body 1. The third pressure block 42 can move stably along the Y-axis direction under the drive of the Y-axis hydraulic device 41. After the cylinder body 1 is positioned with the Y-axis positioning block 62, the third pressure block 42 moves accurately to the position of contact with the bottom plate 11 of the cylinder body 1 under the action of the Y-axis hydraulic device 41 and cooperates with the Y-axis positioning block 62 to clamp and limit the bottom plate 11 of the cylinder body 1 from two directions of the Y-axis. This stable movement and clamping method can effectively avoid the problem of inaccurate limiting caused by the instability of mechanical transmission or human operation error, and provide reliable positioning guarantee for the cylinder body 1 in the Y-axis direction.

[0032] See Figure 1 , Figure 2 and Figure 4As shown, in this embodiment, the Z-axis limiting component 5 includes a first Z-axis hydraulic device 51 and a fourth pressure block 52. The first Z-axis hydraulic device 51 is disposed on the top of the supporting plate 22, and the fourth pressure block 52 is connected to the output end of the first Z-axis hydraulic device 51. In this embodiment, the number of both the first Z-axis hydraulic device 51 and the fourth pressure block 52 is set to at least one. When both the first Z-axis hydraulic device 51 and the fourth pressure block 52 are set to one, the fourth pressure block 52 can move along the Z-axis direction to cooperate with the Z-axis positioning block 63 to clamp the bottom plate 11 of the cylinder 1, or the fourth pressure block 52 can move along the Z-axis direction to... The first Z-axis hydraulic device 51 and the fourth pressure block 52 are configured as two or more. The first Z-axis hydraulic device 51 is located above the bottom plate 11 of the cylinder body 1 and above the cylinder body 1's boss 12, respectively. The fourth pressure block 52 can move along the Z-axis direction to cooperate with the Z-axis positioning block 63 to clamp the bottom plate 11 of the cylinder body 1. The fourth pressure block 52 can also move along the Z-axis direction to cooperate with the Z-axis positioning block 63 to clamp the cylinder body 1's boss 12. This design achieves clamping of both the bottom plate 11 and the boss 12 of the cylinder body 1, which is more effective than a single fixing method. The fourth pressure block 52 can move stably along the Z-axis direction under the drive of the first Z-axis hydraulic device 51. After the boss 12 of the cylinder body 1 is positioned with the Z-axis positioning block 63, the fourth pressure block 52 moves accurately to the position in contact with the bottom plate 11 of the cylinder body 1, the position in contact with the boss 12 of the cylinder body 1, or the position in contact with both the bottom plate 11 and the boss 12 of the cylinder body 1, and cooperates with the Z-axis positioning block 63 to clamp and limit the bottom plate 11 and the boss 12 of the cylinder body 1 or the bottom plate 11 and the boss 12 from two directions of the Z-axis. This stable movement and clamping method can effectively avoid the problem of inaccurate limit due to the instability of mechanical transmission or human operation error, and provide reliable positioning guarantee for the cylinder body 1 in the Z-axis direction.

[0033] Among them, see Figure 1 As shown, the fourth pressure block 52 is conical, and the fourth pressure block 52 abuts against the top cavity 13 of the bottom plate 11 in the cylinder body 1, or the top cavity 13 of the boss 12 in the cylinder body 1, or the cavity 13 of the bottom plate 11 and the cavity 13 of the boss 12 in the cylinder body 1. The contact surface between the conical pressure block and the cavity 13 is larger, which can significantly expand the force-bearing area and make the clamping more secure.

[0034] See Figure 4 and Figure 6As shown, in some embodiments, the Z-axis limiting assembly 5 further includes a second Z-axis hydraulic device 53 and a fifth pressure block 54. The second Z-axis hydraulic device 53 is disposed inside the placement plate 23, and the fifth pressure block 54 is connected to the output end of the second Z-axis hydraulic device 53. There are two second Z-axis hydraulic devices 53, which are respectively disposed on both sides of the Z-axis positioning block 63. The two second Z-axis hydraulic devices 53 are disposed at different heights to adapt to the protrusion 12 of the cylinder body 1 and achieve a better clamping and limiting effect. The fifth pressure block 54 can move stably along the Z-axis direction under the drive of the second Z-axis hydraulic device 53. After the protrusion 12 of the cylinder body 1 is positioned with the Z-axis positioning block 63, the fifth pressure block 54 moves accurately to the position of contacting the protrusion 12 of the cylinder body 1 under the action of the second Z-axis hydraulic device 53, and cooperates with the first Z-axis hydraulic device 51 and the Z-axis positioning block 63 to clamp and limit the cylinder body 1 from two directions of the Z-axis, with better effect.

[0035] Among them, see Figure 1 As shown, the fifth pressure block 54 is conical, and the fifth pressure block 54 abuts against the bottom cavity 13 of the cylinder body 1 boss 12. The contact surface between the conical pressure block and the cavity 13 is larger, which can significantly expand the force-bearing area and make the clamping more secure.

[0036] It should be noted that the first X-axis hydraulic device 31, the second X-axis hydraulic device 33, the Y-axis hydraulic device 41, the first Z-axis hydraulic device 51, and the second Z-axis hydraulic device 53 are one or more of pneumatic cylinders, hydraulic cylinders, or oil cylinders. The power source is flexibly adaptable to meet diverse processing needs, and the power source can be selected according to the actual situation.

[0037] In this embodiment, the cylinder body 1 is placed on the placement platform and abuts against the X-axis positioning block 61, the Y-axis positioning block 62 and the Z-axis positioning block 63. When disassembling or placing the cylinder body 1, only the unidirectional X-axis limiting component 3, the Y-axis limiting component 4 and the Z-axis limiting component 5 need to separate or abut against the cylinder body 1, making the operation simple and quick.

[0038] Specific implementation steps: Place cylinder 1 on the placement platform, abut the bottom plate 11 of cylinder 1 against the X-axis positioning block 61, abut the bottom plate 11 of cylinder 1 against the Y-axis positioning block 62, and abut the boss 12 of cylinder 1 against the Z-axis positioning block 63. Activate the first X-axis hydraulic device 31 and the second X-axis hydraulic device 33 to clamp and limit the bottom plate 11 and boss 12 of cylinder 1 respectively. Activate the Y-axis hydraulic device 41 to clamp and limit the bottom plate 11 of cylinder 1. Activate the first Z-axis hydraulic device 51 to clamp and limit the bottom plate 11 and boss 12 of cylinder 1, and activate the second Z-axis hydraulic device 53 to clamp and limit the boss 12 of cylinder 1, thus completing the positioning and clamping of cylinder 1.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cylinder positioning fixture for positioning and clamping a cylinder (1), characterized in that, It includes a support base (2), an X-axis limiting assembly (3), a Y-axis limiting assembly (4), a Z-axis limiting assembly (5), and a three-axis positioning assembly (6), wherein, The three-axis positioning component (6) is disposed on the support base (2) and is used to abut against the cylinder (1) in the X-axis direction, Y-axis direction and Z-axis direction; The X-axis limiting component (3) is disposed on the support base (2) and can reciprocate along the X-axis, and is used to cooperate with the three-axis positioning component (6) to limit the displacement of the cylinder (1) along the X-axis; The Y-axis limiting component (4) is disposed on the support base (2) and can reciprocate along the Y-axis, and is used to cooperate with the three-axis positioning component (6) to limit the displacement of the cylinder (1) along the Y-axis; The Z-axis limiting component (5) is disposed on the support base (2) and can reciprocate along the Z-axis, and is used to cooperate with the three-axis positioning component (6) to limit the displacement of the cylinder (1) along the Z-axis.

2. The cylinder positioning fixture according to claim 1, characterized in that, The support base (2) includes a base body (21), a support plate (22), and a placement plate (23), wherein, The support plate (22) is disposed in the Z-axis direction of the base body (21); The placement plate (23) is disposed in the Z-axis direction of the base body (21).

3. A cylinder positioning fixture according to claim 2, characterized in that, The three-axis positioning assembly (6) includes an X-axis positioning block (61), a Y-axis positioning block (62), and a Z-axis positioning block (63), wherein, The X-axis positioning block (61) is disposed on the support plate (22) and is used to abut against the cylinder (1) in the X-axis direction; The Y-axis positioning block (62) is disposed on the placement plate (23) and is used to abut against the cylinder (1) in the Y-axis direction; The Z-axis positioning block (63) is disposed on the placement plate (23) and is used to abut against the cylinder (1) in the Z-axis direction.

4. A cylinder positioning fixture according to claim 3, characterized in that, The X-axis limiting assembly (3) includes a first X-axis hydraulic device (31) and a first pressure block (32), wherein, The first X-axis hydraulic device (31) is mounted on the support plate (22); The first pressure block (32) is connected to the output end of the first X-axis hydraulic device (31) and the first pressure block (32) can move along the X-axis direction to cooperate with the X-axis positioning block (61) to clamp the cylinder (1).

5. A cylinder positioning fixture according to claim 3, characterized in that, The X-axis limiting assembly (3) further includes a second X-axis hydraulic device (33) and a second pressure block (34), wherein, The second X-axis hydraulic device (33) is mounted on the placement plate (23); The second pressure block (34) is connected to the output end of the second X-axis hydraulic device (33) and the second pressure block (34) can cooperate with the X-axis positioning block (61) to clamp the cylinder (1) along the X-axis direction.

6. A cylinder positioning fixture according to claim 3, characterized in that, The Y-axis limiting assembly (4) includes a Y-axis hydraulic device (41) and a third pressure block (42), wherein, The Y-axis hydraulic device (41) is mounted on the support plate (22); The third pressure block (42) is connected to the output end of the Y-axis hydraulic device (41) and can move along the Y-axis direction to cooperate with the Y-axis positioning block (62) to clamp the cylinder (1).

7. A cylinder positioning fixture according to claim 3, characterized in that, The Z-axis limiting assembly (5) includes a first Z-axis hydraulic device (51) and a fourth pressure block (52), wherein, The first Z-axis hydraulic device (51) is mounted on the support plate (22); The fourth pressure block (52) is connected to the output end of the first Z-axis hydraulic device (51) and can move along the Z-axis direction to cooperate with the Z-axis positioning block (63) to clamp the cylinder (1).

8. A cylinder positioning fixture according to claim 7, characterized in that, The Z-axis limiting assembly (5) further includes a second Z-axis hydraulic device (53) and a fifth pressure block (54), wherein, The second Z-axis hydraulic device (53) is mounted on the placement plate (23); The fifth pressure block (54) is connected to the output end of the second Z-axis hydraulic device (53) via a transmission connection.

9. A cylinder positioning fixture according to claim 7, characterized in that, The fourth pressure block (52) is conical and abuts against the cavity (13) of the cylinder (1).

10. A cylinder positioning fixture according to claim 8, characterized in that, The fifth pressure block (54) is conical and abuts against the cavity (13) of the cylinder (1).

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