Hydraulic oil cylinder barrel punching tool

Abstract

The utility model discloses a hydraulic oil cylinder barrel punching tool, which belongs to the technical field of hydraulic oil cylinder processing, and comprises a supporting box body, a limiting assembly, a supporting assembly and a pushing assembly, the limiting assembly, the supporting assembly and the pushing assembly are arranged on the supporting box body, the limiting assembly comprises a fixing plate and a plurality of limiting sleeves arranged on the fixing plate, and the limiting sleeves are coaxially arranged. A receding groove is formed in the top of the side wall of each limiting sleeve in the axial direction, through grooves are correspondingly formed in the side walls of the other limiting sleeves except the limiting sleeve located in the innermost portion, the supporting assembly comprises supporting blocks arranged on the two opposite sides of the cylinder barrel in a sliding mode, the supporting blocks can penetrate through the through grooves, the supporting blocks are provided with abutting inclined faces used for abutting against the cylinder barrel, and the abutting inclined faces abut against the cylinder barrel. The pushing and abutting assembly comprises a pushing and abutting plate and a pushing and abutting piece used for driving the pushing and abutting plate to move so as to extrude and fix the cylinder barrel to the fixing plate. The supporting block supports the cylinder barrel, deformation is reduced, the punching precision is improved, the multiple limiting sleeves can meet the punching requirements of various cylinder barrels, and universality is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic oil cylinder processing, in particular to a hydraulic oil cylinder barrel punching tool. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy. It is used to drive objects to perform linear reciprocating motion. When achieving reciprocating motion, the deceleration device can be omitted, there is no transmission gap, and the operation is smooth. Therefore, it is widely used in various mechanical hydraulic systems.

[0003] A hydraulic cylinder generally includes a cylinder barrel, a cylinder head, a piston rod and a piston. The cylinder head is installed at the end of the cylinder barrel, the piston is slidably arranged in the cylinder barrel, and the end of the piston rod is inserted into the cylinder barrel and connected to the piston. Hydraulic cylinders can be divided into two types according to the action of hydraulic pressure: single-acting hydraulic cylinders and double-acting hydraulic cylinders. In a single-acting hydraulic cylinder, the pressure oil is only supplied to one end of the cylinder barrel, and the piston is moved in one direction by the hydraulic pressure, while the reverse direction movement is achieved by external force (for example, springs, external loads, etc.); while in a double-acting hydraulic cylinder, the pressure oil is supplied to both ends of the cylinder barrel, and the cavities on both sides of the piston in the cylinder barrel are alternately filled with oil, thereby realizing the reciprocating movement of the piston. Regardless of the type of hydraulic cylinder, in order to inject hydraulic oil into the cylinder barrel, an oil hole must be opened at the end of the cylinder barrel. The traditional way to open the oil hole is to clamp and fix one end of the cylinder barrel, and then drill an oil hole on the surface of the cylinder barrel by a drilling machine. In this method, the cylinder is in a suspended state, and there is a lack of supporting structure inside the cylinder, which can easily cause deformation of the drilling position of the cylinder when drilling, thereby affecting the drilling accuracy and quality of the cylinder. In order to avoid this problem, some manufacturers set the cylinder sleeve on a support sleeve when drilling, and use the support sleeve to support the cylinder to improve the structural strength of the drilling position of the cylinder. This method reduces the deformation of the cylinder to a certain extent and can meet the general drilling requirements of the cylinder. However, the inventor found in the long-term use process that because the support sleeve itself will also be deformed to a certain extent when it is pressed during drilling, the drilling accuracy of the cylinder cannot meet the higher drilling requirements. At the same time, for the clamping and fixing tooling of the cylinder, one tooling can only meet the clamping needs of one specification of cylinder, which has great limitations. Based on this, it is necessary for the inventor to improve the tooling structure of the cylinder to overcome the above problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is that in the prior art, the drilling accuracy of the cylinder barrel needs to be improved and has great limitations in use. Based on this, the utility model provides a hydraulic cylinder barrel drilling tool with high drilling accuracy and wide versatility.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a hydraulic cylinder barrel drilling tool, including a support box and a limit assembly, a support assembly and a push assembly arranged on the support box, the limit assembly includes a fixed plate and a limit sleeve arranged on the fixed plate, the limit sleeve has multiple and coaxial arrangements, the top of the side wall of each of the limit sleeves is axially provided with an avoidance groove, except for the limit sleeve located in the innermost part, the side walls of the remaining limit sleeves are correspondingly provided with through grooves, the support assembly includes support blocks slidably arranged on opposite sides of the cylinder barrel, the support block can pass through the through groove, the support block has a supporting inclined surface for supporting the cylinder barrel, the push assembly includes a push plate and a push member for driving the push plate to move and thereby squeeze and fix the cylinder barrel on the fixed plate.

[0006] Furthermore, the support assembly also includes a support groove and a driving member, the cross-section of the support groove is a U-shaped structure, the support groove is fixedly connected to the support box, the support block is slidably disposed on the bottom wall of the support groove, and the driving member is disposed on the support groove to drive the support block to move radially along the cylinder.

[0007] Furthermore, a sliding groove is provided on the bottom wall of the supporting groove, and the bottom of the supporting block is slidably connected to the sliding groove.

[0008] Furthermore, the driving member is a stud, the stud passes through the side wall of the supporting groove and is threadedly connected to the supporting groove, and one end of the stud is rotatably connected to the supporting block.

[0009] Furthermore, two supporting blocks are provided on either side of the cylinder.

[0010] Further, the push member is installed on the supporting box body, the push member has a protruding end, the push plate is installed on the protruding end of the push member, and the push plate abuts against one end of the cylinder away from the limiting assembly.

[0011] Furthermore, the push plate is rotatably connected to the protruding end of the push member.

[0012] Furthermore, a limiting block is fixedly provided on the upper surface of the supporting box body, and the bottom of the pushing plate can be abutted against the top of the limiting block.

[0013] Furthermore, the fixing plate is vertically arranged and perpendicular to the upper surface of the supporting box body, and the limiting sleeve is horizontally arranged and perpendicular to the fixing plate.

[0014] Furthermore, there are two limiting sleeves.

[0015] The beneficial effects of the utility model are as follows: the hydraulic cylinder barrel drilling tool of the utility model is provided with a support assembly at the bottom of the cylinder barrel, so that the supporting inclined surface of the support block can support the cylinder barrel, effectively avoiding the situation that the ends of the cylinder barrel and the limiting sleeve are subjected to force and undergo large deformation during drilling, thereby ensuring the drilling accuracy and improving the product quality. At the same time, the limiting sleeves used to support the cylinder barrel are provided as a plurality of coaxial ones to meet the drilling needs of cylinder barrels of various specifications, thereby improving the versatility of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a three-dimensional diagram of the hydraulic cylinder barrel punching tool of the utility model;

[0018] Figure 2 yes Figure 1 A schematic diagram of the connection structure of the limit assembly and the support block in the hydraulic cylinder barrel drilling tooling shown;

[0019] Figure 3 yes Figure 1 The front view of the hydraulic cylinder barrel drilling tool shown;

[0020] Figure 4 yes Figure 3 The cross-sectional view of the hydraulic cylinder barrel drilling tool along AA is shown.

[0021] In the figure: 10, cylinder, 1, supporting box, 11, limiting block, 2, limiting assembly, 21, fixing plate, 22, limiting sleeve, 221, avoidance groove, 222, through groove, 3, supporting assembly, 31, supporting block, 311, supporting inclined surface, 32, supporting groove, 321, slide groove, 33, driving member, 331, hand wheel, 4, pushing assembly, 41, pushing plate, 42, pushing member. DETAILED DESCRIPTION

[0022] Now the utility model is described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the utility model in a schematic manner, so it only shows the components related to the utility model.

[0023] See also Figure 1-Figure 4The utility model provides a hydraulic cylinder barrel drilling tool, which is used to clamp and fix the cylinder barrel 10 when drilling oil holes. The hydraulic cylinder barrel drilling tool includes a support box 1 and a limit assembly 2, a support assembly 3 and a push assembly 4 installed on the support box 1. One end of the cylinder barrel 10 is installed on the limit assembly 2, and the push assembly 4 acts on the other end of the cylinder barrel 10 and clamps the cylinder barrel 10 on the limit assembly 2 to prevent the cylinder barrel 10 from moving axially. The support assembly 3 is used to support the lower part of the cylinder barrel 10 around the part to be drilled to support the cylinder barrel 10.

[0024] The limiting assembly 2 includes a fixed plate 21 and a limiting sleeve 22 connected to the fixed plate 21, and the limiting sleeve 22 has multiple, and the multiple limiting sleeves 22 are coaxially arranged. In this embodiment, the fixed plate 21 is vertically arranged and perpendicular to the upper surface of the support box 1, and the limiting sleeve 22 is horizontally arranged and perpendicular to the fixed plate 21. The limiting sleeve 22 is a circular tubular structure with two ends through, and a limiting sleeve 22 is suitable for the installation of a cylinder 10 with a certain inner diameter. When clamping the cylinder 10, the cylinder 10 is sleeved on the outside of the matching limiting sleeve 22, and the inner diameter of the cylinder 10 matches the outer diameter of the limiting sleeve 22, so that when the cylinder 10 is sleeved on the outside of the limiting sleeve 22, the cylinder 10 cannot move relative to the limiting sleeve 22 in the radial direction, thereby limiting the radial movement of the cylinder 10, and at the same time, enhancing the structural strength of the cylinder 10 to avoid the cylinder 10 from being easily deformed when punching.

[0025] The top of the side wall of each limiting sleeve 22 is provided with an avoidance groove 221 along the axial direction, and the avoidance groove 221 is used to avoid the drill bit of the drilling machine to avoid the drill bit from interfering with the limiting sleeve 22 during the drilling operation. In this embodiment, there are two limiting sleeves 22, which can be applicable to the drilling needs of two cylinder barrels 10 with different inner diameter specifications. When the cylinder barrel 10 to be punched is sleeved on an inner limiting sleeve 22, when drilling, the drill bit is located directly above the avoidance groove 221, the drill bit first passes through the avoidance groove 221 of an outer limiting sleeve 22, then passes through the cylinder barrel 10, and finally enters the avoidance groove 221 of the inner limiting sleeve 22, thereby completing the drilling; when the cylinder barrel 10 to be punched is sleeved on an outer limiting sleeve 22, when drilling, the drill bit first passes through the cylinder barrel 10, and then enters the avoidance groove 221 of the outer limiting sleeve 22, thereby completing the drilling. During specific implementation, the number of the limiting sleeves 22 is not limited, and the number can be adjusted according to the product specifications of the cylinder 10 to meet the drilling needs of cylinders 10 of various specifications, thereby improving the versatility of the tooling.

[0026] After the cylinder 10 is clamped and fixed in place, the end of the cylinder 10 abuts against the side wall of the fixing plate 21 , and the other end of the cylinder 10 abuts against the push assembly 4 , thereby clamping and fixing the cylinder 10 between the fixing plate 21 and the push assembly 4 .

[0027] The support assembly 3 includes support blocks 31 slidably arranged on opposite sides of the cylinder 10. Except for the innermost limiting sleeve 22, the side walls of the other limiting sleeves 22 are correspondingly provided with through grooves 222. The support blocks 33 can cooperate to pass through the through grooves 222. The opposite surfaces of the two support blocks 31 arranged on the opposite sides of the cylinder 10 are arranged as abutment slopes 311, and the abutment slopes 311 are used to abut against the outer wall of the cylinder 10. When clamping, the two support blocks 31 on the opposite sides of the cylinder 10 move in opposite directions, and finally the abutment slopes 311 abut against the outer wall of the cylinder 10. At this time, the bottom of the cylinder 10 is overlapped between the two abutment slopes 311, and the abutment slopes 311 can support the cylinder 10, effectively avoiding the situation that the ends of the cylinder 10 and the limiting sleeve 22 are greatly deformed under stress, ensuring the punching accuracy and improving the product quality.

[0028] When the cylinder 10 is mounted on the outermost limiting sleeve 22, the supporting block 31 can be moved so that the supporting inclined surface 311 can be directly abutted against the outer wall of the cylinder 10; and when the cylinder 10 is mounted on one of the inner limiting sleeves 22, when the supporting block 31 is moved, the supporting inclined surface 311 can pass through the through groove 211 and abut against the outer wall of the cylinder 10. In this way, the supporting inclined surface 311 can support the outer walls of cylinders 10 of various specifications. In this embodiment, two supporting blocks 31 are provided on either side of the cylinder 10, and the two supporting blocks 31 jointly support the cylinder 10 at two different positions along the axial direction of the cylinder 10, thereby improving the supporting reliability of the support block 31 on the cylinder 10.

[0029] The support assembly 3 also includes a support groove 32 and a driving member 33. The cross-section of the support groove 32 is a U-shaped structure. The support groove 32 is fixedly installed on the upper surface of the support box 1. The support block 31 is slidably installed on the bottom wall of the support groove 32. The driving member 33 is installed on two opposite side walls of the support groove 32. The driving member 33 drives the support block 31 to move radially along the cylinder 10.

[0030] Please refer again Figure 1As a preferred embodiment, a slide groove 321 is provided on the bottom wall of the support groove 32, and the bottom of the support block 31 is slidably connected to the slide groove 321. The driving member 33 is a stud, which passes through the side wall of the support groove 32 and is threadedly connected to the support groove 32. One end of the stud is rotatably connected to the support block 31, and the other end of the stud is fixedly connected to a handwheel 331 for user operation. When in use, the user can drive the stud to rotate by holding the handwheel 331 and turning the handwheel 331, thereby driving the support block 31 to slide along the slide groove 321, so as to facilitate the abutting inclined surface 311 to abut against the outer wall of the cylinder 10. The threaded connection relationship between the stud and the support groove 32 makes the stud driving member 33 have a certain self-locking function, which can effectively prevent the support block 31 from easily sliding along the slide groove 321 under pressure, and is more reliable to use. It is understandable that in other embodiments, the support block 31 can also be moved under the action of a driving member such as a cylinder, and the specific structure of the driving member 33 is not limited here. Further, in order to improve the connection stability between the stud and the support block 31, a bearing can be provided between the stud and the support block 31 to support the stud.

[0031] In addition, in other embodiments, the support groove 32 may be omitted. In this case, the support block 31 and the driving member 33 for driving the support block 31 to move may be directly installed on the upper surface of the support box 1 .

[0032] The push assembly 4 includes a push plate 41 and a push member 42 for driving the push plate 41 to move. The push member 42 is mounted on the supporting box 1. The push member 42 has an extended end. The push plate 41 is mounted on the extended end of the push member 42. The push plate 41 abuts against one end of the cylinder 10 away from the limit assembly 2. During clamping, when one end of the cylinder 10 is sleeved on the limit sleeve 22, the push member 42 can be activated to drive the push plate 41 to move, so that the cylinder 10 is squeezed between the fixed plate 21 and the push plate 41 under the push of the push plate 41, thereby limiting the axial movement of the cylinder 10.

[0033] As a preferred embodiment, the push member 42 is a cylinder, and the push plate 41 is connected to the extended end of the cylinder. The working medium of the cylinder is easy to obtain, and the production cost can be effectively controlled.

[0034] In addition, the push plate 41 and the extended end of the push member 42 are rotatably connected. When in use, the push plate 41 is first rotated to stagger the push plate 41 with the limit assembly 2. At this time, it is convenient to sleeve one end of the cylinder 10 on the limit sleeve 22, and then the push plate 41 is rotated to align the push plate 41 with one end of the cylinder 10. At this time, the push member 42 drives the push plate 41 to move so as to squeeze and fix the cylinder 10 on the limit assembly 2. When the drilling is completed, the push plate 41 can be rotated to a position staggered with the cylinder 10, so as to facilitate the extraction of the cylinder 10. The push plate 41 and the extended end of the push member 42 are connected by a bearing to improve the connection stability.

[0035] Furthermore, a limit block 11 is fixedly provided on the upper surface of the support box 10, and the bottom of the push plate 41 can be placed on the top of the limit block 11, so that when the push plate 41 is placed on the limit block 11, the push plate 41 can correspond to the cylinder 10, ensuring that the push plate 41 can be squeezed on the cylinder 10.

[0036] The hydraulic cylinder barrel drilling tool of the utility model is provided with a support assembly 3 at the bottom of the cylinder barrel 10, so that the abutting inclined surface 311 of the support block 31 can support the cylinder barrel 10, effectively avoiding the situation that the ends of the cylinder barrel 10 and the limiting sleeve 22 are subjected to force and are greatly deformed during drilling, thereby ensuring the drilling accuracy and improving the product quality. At the same time, the limiting sleeves 22 used to support the cylinder barrel 10 are arranged in a plurality of coaxial ones to meet the drilling needs of cylinder barrels 10 of various specifications, thereby improving the versatility of the tool.

[0037] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the scope of the utility model through the above description. The technical scope of this utility model is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A hydraulic cylinder barrel drilling tool, characterized in that: The invention comprises a supporting box body and a limit assembly, a supporting assembly and a pushing assembly arranged on the supporting box body, the limit assembly comprises a fixing plate and a limit sleeve arranged on the fixing plate, the limit sleeves are provided in plurality and are coaxially arranged, the top of the side wall of each limit sleeve is provided with an avoidance groove along the axial direction, and except for the limit sleeve located in the innermost part, the side walls of the other limit sleeves are provided with corresponding through grooves, the supporting assembly comprises a supporting block slidably arranged on opposite sides of the cylinder barrel, the supporting block can pass through the through groove, the supporting block has a supporting inclined surface for supporting the cylinder barrel, the pushing assembly comprises a pushing plate and a pushing member for driving the pushing plate to move and thereby squeezing and fixing the cylinder barrel on the fixing plate.

2. The hydraulic cylinder barrel drilling tool as claimed in claim 1, characterized in that: The support assembly also includes a support groove and a driving member. The cross-section of the support groove is a U-shaped structure. The support groove is fixedly connected to the support box. The support block is slidably arranged on the bottom wall of the support groove. The driving member is arranged on the support groove to drive the support block to move radially along the cylinder.

3. The hydraulic cylinder barrel drilling tool as claimed in claim 2, characterized in that: A sliding groove is provided on the bottom wall of the supporting groove, and the bottom of the supporting block is slidably connected to the sliding groove.

4. The hydraulic cylinder barrel drilling tool as claimed in claim 2, characterized in that: The driving member is a stud, which penetrates through the side wall of the supporting groove and is threadedly connected to the supporting groove, and one end of the stud is rotatably connected to the supporting block.

5. The hydraulic cylinder barrel drilling tool as claimed in claim 1, characterized in that: Two supporting blocks are arranged on either side of the cylinder.

6. The hydraulic cylinder barrel drilling tool as claimed in claim 1, characterized in that: The push member is installed on the supporting box body, and has a protruding end. The push plate is installed on the protruding end of the push member, and the push plate abuts against an end of the cylinder away from the limiting assembly.

7. The hydraulic cylinder barrel drilling tool as claimed in claim 6, characterized in that: The push plate is rotatably connected to the protruding end of the push member.

8. The hydraulic cylinder barrel drilling tool as claimed in claim 6, characterized in that: A limiting block is fixedly arranged on the upper surface of the supporting box body, and the bottom of the pushing plate can be abutted against the top of the limiting block.

9. The hydraulic cylinder barrel drilling tool as claimed in claim 1, characterized in that: The fixing plate is vertically arranged and perpendicular to the upper surface of the supporting box body, and the limiting sleeve is horizontally arranged and perpendicular to the fixing plate.

10. The hydraulic cylinder barrel drilling tool as claimed in claim 9, characterized in that: The limiting sleeves are provided with two.

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