Part clamping device

Abstract

The utility model provides a part clamping device. The part clamping device comprises a workbench, a supporting table and a positioning assembly. The positioning assembly comprises a first limiting mechanism, a second limiting mechanism, a third limiting mechanism and a fourth limiting mechanism. A first pressing plate and a first floating support are arranged on the first limiting mechanism; a second floating support is arranged on the second limiting mechanism; a second pressing plate and a third floating support are arranged on the third limiting mechanism; a third pressing plate and a fourth floating support are arranged on the fourth limiting mechanism; the first floating branch and the third floating branch are oppositely arranged, and the second floating branch and the fourth floating branch are oppositely arranged; and a lock pin is inserted into the supporting table. According to the clamping device, the parts are clamped in a pressing and abutting mode, the rapid and high-quality device for the parts is achieved, and the clamping requirement for post-heating machining of rocker arm type parts can be met.

Description

Technical Field

[0001] This utility model relates to the field of landing gear rocker arm parts processing technology, and in particular to a parts clamping device. Background Technology

[0002] The landing gear contains important rocker arm-like components (such as...) Figure 1 As shown, a certain type of rocker arm part 5 has a multi-curved surface structure with mounting holes 51 at both ends. The sidewalls of the part 51 forming the mounting holes 51 are thin-walled. This type of part belongs to the drive-load-bearing structural component category and involves multiple machining processes, such as vertical milling, horizontal milling, grinding, and fitting. It is mostly machined from a single forging. During machining, fixing pins are inserted into the mounting holes 51 for positioning before and after the part is heated. However, using fixing pins alone for positioning is no longer sufficient for post-heat machining requirements, especially in flexible wire machining where the requirements for fixture positioning are becoming increasingly stringent. Therefore, a dedicated clamping fixture is needed. Utility Model Content

[0003] The purpose of this utility model is to provide a parts clamping device that can meet the clamping requirements of rocker arm parts after heat processing.

[0004] The technical solution of this utility model is: a parts clamping device, including a worktable, a support platform disposed on the worktable, and a positioning component disposed around the periphery of the support platform. The positioning component includes a first limiting mechanism and a second limiting mechanism disposed on one side of the support platform in the X direction, and a third limiting mechanism and a fourth limiting mechanism disposed on the other side of the support platform in the X direction. The first limiting mechanism is provided with a first pressure plate that can extend toward the support platform and generate downward pressure, and a first floating support that can horizontally extend and retract toward the support platform. The second limiting mechanism is provided with a second floating support that can horizontally extend and retract toward the support platform. The third limiting mechanism is provided with a second pressure plate that can extend toward the support platform and generate downward pressure, and a third floating support that can horizontally extend and retract toward the support platform. The fourth limiting mechanism is provided with a third pressure plate that can extend toward the support platform and generate downward pressure, and a fourth floating support that can horizontally extend and retract toward the support platform. The first floating support and the third floating support are arranged opposite to each other, and the second floating support and the fourth floating support are arranged opposite to each other. A locking pin is inserted into the support platform.

[0005] In the above solution, in addition to using locking pins and mounting holes for positioning, pressure plates and floating supports are added. The parts are clamped by pressing and resisting, realizing a fast and high-quality device for the parts, which can meet the clamping requirements of rocker arm parts after heat processing.

[0006] Preferably, the first limiting mechanism includes a first mounting base, one end of the first pressure plate is hinged to the first mounting base, and the other end of the first pressure plate can extend upward toward the support platform; the first floating support extends upward toward the support platform through the first mounting base.

[0007] Preferably, the second limiting mechanism includes a second mounting base, and the second floating branch extends through the second mounting base toward the top of the support platform.

[0008] Preferably, the third limiting mechanism includes a third mounting base, one end of the second pressure plate is hinged to the third mounting base, and the other end of the second pressure plate can extend upward toward the support platform; the third floating support extends upward through the third mounting base toward the support platform.

[0009] Preferably, the fourth limiting mechanism includes a fourth mounting base, one end of the third pressure plate is hinged to the fourth mounting base, and the other end of the third pressure plate can extend upward toward the support platform; the fourth floating support extends upward toward the support platform through the fourth mounting base.

[0010] Preferably, the part clamping device further includes a fifth limiting mechanism and a sixth limiting mechanism respectively disposed at both ends of the support platform in the Y direction; the fifth limiting mechanism is provided with a fourth pressure plate that can extend toward the support platform and generate downward pressure and a fifth floating support that can tilt and extend toward the support platform; the sixth limiting mechanism is provided with a sixth pressure plate that can extend toward the support platform and generate downward pressure and a sixth floating support that can tilt and extend toward the support platform.

[0011] Preferably, the fifth limiting mechanism includes a fifth mounting base, one end of the fourth pressure plate is hinged to the fifth mounting base, and the other end of the fourth pressure plate can extend upward toward the support platform; the fifth floating support extends upward toward the support platform through the fifth mounting base.

[0012] Preferably, the sixth limiting mechanism includes a sixth mounting base, and the sixth floating branch extends through the sixth mounting base toward the top of the support platform.

[0013] Preferably, the locking pin includes a first end cap, a second end cap, a screw, a spindle, a positioning sleeve, a steel ball, and a knob. The lower end of the second end cap is externally connected to the first end cap, and the upper end of the positioning sleeve is internally connected to the lower end of the second end cap. The spindle is disposed in the positioning sleeve. The lower end of the screw extends from the upper end of the second end cap and is connected to the top of the spindle. The screw is threadedly connected to the second end cap, and the knob is disposed at the upper end of the screw. The positioning sleeve has multiple through holes arranged circumferentially, and the spindle has multiple grooves arranged circumferentially. A steel ball is disposed in each groove. When the through holes and grooves are axially aligned, the steel ball extends out from the through holes.

[0014] Preferably, at least two sets of the support platform and positioning components are symmetrically arranged in the X direction of the worktable.

[0015] Compared with related technologies, the beneficial effects of this utility model are as follows:

[0016] 1. In addition to using locking pins and mounting holes for positioning, the part clamping device also includes a pressure plate and a floating support. By combining pressing and resisting methods, it clamps the parts quickly and with high quality, and can meet the clamping requirements of rocker arm parts after heat treatment.

[0017] 2. The part clamping device is provided with a fifth float and a sixth float at both ends of the support platform in the Y direction, which provides good limiting for the thinner wall parts at the holes at both ends of the part.

[0018] Third, the locking pin used in this utility model has a steel ball inside, which can be used for center correction and improve the positioning accuracy of the parts after heat processing;

[0019] IV. The positioning components on the worktable are symmetrically arranged in at least two sets, which can realize the processing of front and back parts, and can realize the processing of multiple parts and front and back sides of the flexible line machining center. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of a certain type of rocker arm part;

[0021] Figure 2 A three-dimensional structural diagram of the parts clamping device provided by this utility model without the locking pin;

[0022] Figure 3 A top view of the parts clamping device provided by this utility model;

[0023] Figure 4 For along Figure 3 A schematic diagram of the AA section and rotation;

[0024] Figure 5 This is a schematic diagram of the locking pin structure. Detailed Implementation

[0025] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0026] like Figure 2 , Figure 3 As shown, the parts clamping device provided in this embodiment includes a worktable 1, a support platform 2, a positioning component 3, and a locking pin 4.

[0027] The workbench 1 is provided with a support platform 2. The shape of the support platform 2 is adapted to the shape of the part 5 and is used to place the part 5. Positioning holes adapted to the mounting holes 51 are opened on the support platform 2.

[0028] The positioning component 3 includes a first limiting mechanism 31, a second limiting mechanism 32, a third limiting mechanism 33, a fourth limiting mechanism 34, a fifth limiting mechanism 35, and a sixth limiting mechanism 36.

[0029] The first limiting mechanism 31 and the second limiting mechanism 32 are located on one side of the support platform 2 in the X direction, and the third limiting mechanism 33 and the fourth limiting mechanism 34 are located on the other side of the support platform 2 in the X direction. The first limiting mechanism 31 and the second limiting mechanism 32 are spaced apart in the Y direction, and the third limiting mechanism 33 and the fourth limiting mechanism 34 are also spaced apart in the Y direction. The fifth limiting mechanism 35 is located at one end of the support platform 2 in the Y direction, and the sixth limiting mechanism 36 is located at the other end of the support platform 2 in the Y direction. The X and Y directions are perpendicular to each other on the same top-view projection plane.

[0030] The first limiting mechanism 31 includes a first mounting base 311, a first pressure plate 312, a first floating support 313, and a first connecting member 314. The first mounting base 311 is fixed to the worktable 1 by bolts. One end of the first pressure plate 312 is rotatably mounted on the first mounting base 311 via the first connecting member 314. The first connecting member 314 includes a screw and a nut. One end of the screw passes vertically through the first mounting base 311 and connects to the worktable 1, while the other end of the screw extends to the upper end of the first mounting base 311 and is fixed by the nut. The first pressure plate 312 is fitted onto the screw and its position is locked by the nut. When the nut of the first connecting member 314 is loosened, the first pressure plate 312 can be rotated, causing its other end to extend toward the support platform 2. When the nut is tightened, the first pressure plate 312 generates downward pressure, pressing against the upper surface of the part 5. The first floating support 313 is a bolt, threadedly connected to the first mounting base 311. Rotating the first floating support 313 allows its end to abut against the side surface of the part 5.

[0031] The second limiting mechanism 32 includes a second mounting base 321 and a second float 322. The second mounting base 321 is connected to the side surface of the support platform 2 by fasteners. The structure and working principle of the second float 322 are the same as those of the first float 313.

[0032] The third limiting mechanism 33 includes a third mounting base 331, a second pressure plate 332, a third float 333, and a second connecting rod 334. The installation and working principle of the above-mentioned parts in the third limiting mechanism 33 are the same as those of the first limiting mechanism 31. The second pressure plate 332 is used to press the side wall of the mounting hole 51 at the end of the part 5. The first pressure plate 312 is used to press the side wall of the mounting hole (unlabeled) in the middle of the part 5. The first float 313 and the third float 333 are positioned opposite each other and simultaneously abut against a part of the part 5 on both side walls to achieve balanced clamping force.

[0033] The fourth limiting mechanism 34 includes a fourth mounting base 341, a third pressure plate 342, a fourth float 343, and a third connecting member 344. The installation and working principle of the above-mentioned parts of the fourth limiting mechanism 34 are the same as those of the first limiting mechanism 31. The third pressure plate 342 is used to press the upper surface of the part 5. The fourth float 343 and the second float 322 are positioned opposite each other and simultaneously abut against one part of the part 5 on both side walls to achieve balanced clamping force.

[0034] The fifth limiting mechanism 35 includes a fifth mounting base 351, a fourth pressure plate 352, a fifth float 353, and a fourth connecting member 354. The fifth float 353 is inclinedly disposed on the fifth mounting base 351. The fifth float 353 is a screw with an inclined extension path, capable of abutting against the lower end of the upper thin wall of the mounting hole 51 of part 5. The other parts of the fifth limiting mechanism 35 are installed and operate on the same principle as the first limiting mechanism 31.

[0035] The sixth limiting mechanism 36 includes a sixth mounting base 361 and a sixth floating support 362. The sixth mounting base 361 is fixed to the worktable 1 by bolts. The installation and working principle of the sixth floating support 362 are the same as those of the fifth floating support 353. Both of them are inclined towards the part 5 on the support platform 2.

[0036] Therefore, the positions of the upper and lower thin walls of part 5 are both limited. Then, locking pins 4 are inserted into the aligned mounting holes 51 and the positioning holes on the support platform 2.

[0037] like Figure 4 , Figure 5 As shown, the locking pin 4 includes a first end cap 41, a second end cap 42, a screw 43, a spindle 44, a positioning sleeve 45, a steel ball 46, and a knob 47. The lower end of the second end cap 42 is externally connected to the first end cap 41, and the upper end of the positioning sleeve 45 is internally connected to the lower end of the second end cap 42. The spindle 44 is disposed in the positioning sleeve 45. The lower end of the screw 43 extends from the upper end of the second end cap 42 and connects to the top of the spindle 44. The screw 43 is threadedly connected to the second end cap 42, and the knob 47 is disposed at the upper end of the screw 43. The positioning sleeve 45 has multiple through holes 451 arranged circumferentially, and the spindle 44 has multiple grooves 441 arranged circumferentially. The steel ball 46 is disposed in the groove 441 (which can also push the spring extending from the steel ball 46). When the through hole 451 is axially aligned with the groove 441, the steel ball 46 extends out from the through hole 451. For landing gear rocker arm parts, the diameter of the mounting holes is inconsistent before hot machining. The locking pin 4 with steel ball 46 can overcome the problem of difficulty in limiting the position due to the inconsistent machining of the inner hole.

[0038] In use, ensure that the pre-heated blank (used to form part 5) has a 1mm allowance on one side. Grind the surfaces of both ends of the blank flat and rough-machine the inner hole (used to form mounting hole 51) after heating. Use locking pin 4 to roughly position it in the inner hole, and then press the blank with each limiting mechanism. Finally, clamp the part clamping device with the blank fixed on it onto the machine tool worktable, such as vertical machining center CNC milling, CNC boring, chamfering, and other machining equipment, to carry out each process. If it is necessary to machine mounting hole 51, remove the locking pin to allow for a shorter tool clamping length in subsequent fine boring and milling of the end face.

[0039] The support platform 2 and the positioning component 3 are symmetrically arranged in at least two sets in the X direction of the worktable 1, which can perform front and back processing.

[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A parts clamping device, characterized in that, The device includes a workbench, a support platform mounted on the workbench, and positioning components arranged around the periphery of the support platform. The positioning components include a first limiting mechanism and a second limiting mechanism located on one side of the support platform in the X direction, and a third limiting mechanism and a fourth limiting mechanism located on the other side of the support platform in the X direction. The first limiting mechanism has a first pressure plate that extends towards the support platform and generates downward pressure, and a first float that can horizontally extend and retract towards the support platform. The second limiting mechanism has a second float that can horizontally extend and retract towards the support platform. The third limiting mechanism has a second pressure plate that extends towards the support platform and generates downward pressure, and a third float that can horizontally extend and retract towards the support platform. The fourth limiting mechanism has a third pressure plate that extends towards the support platform and generates downward pressure, and a fourth float that can horizontally extend and retract towards the support platform. The first and third floats are arranged opposite to each other, as are the second and fourth floats. A locking pin is inserted into the support platform.

2. The parts clamping device according to claim 1, characterized in that, The first limiting mechanism includes a first mounting base, one end of the first pressure plate is hinged to the first mounting base, and the other end of the first pressure plate can extend upward toward the support platform; the first floating support extends upward through the first mounting base toward the support platform.

3. The parts clamping device according to claim 1, characterized in that, The second limiting mechanism includes a second mounting base, and the second floating branch extends through the second mounting base toward the top of the support platform.

4. The parts clamping device according to claim 1, characterized in that, The third limiting mechanism includes a third mounting base, one end of the second pressure plate is hinged to the third mounting base, and the other end of the second pressure plate can extend upward toward the support platform; the third floating support extends upward through the third mounting base toward the support platform.

5. The parts clamping device according to claim 1, characterized in that, The fourth limiting mechanism includes a fourth mounting base, one end of the third pressure plate is hinged to the fourth mounting base, and the other end of the third pressure plate can extend upward toward the support platform; the fourth floating support extends upward through the fourth mounting base toward the support platform.

6. The parts clamping device according to claim 1, characterized in that, It also includes a fifth limiting mechanism and a sixth limiting mechanism respectively disposed at both ends of the support platform in the Y direction; the fifth limiting mechanism is provided with a fourth pressure plate that can extend toward the support platform and generate downward pressure and a fifth floating support that can tilt and extend toward the support platform; the sixth limiting mechanism is provided with a sixth pressure plate that can extend toward the support platform and generate downward pressure and a sixth floating support that can tilt and extend toward the support platform.

7. The parts clamping device according to claim 6, characterized in that, The fifth limiting mechanism includes a fifth mounting base, one end of the fourth pressure plate is hinged to the fifth mounting base, and the other end of the fourth pressure plate can extend upward toward the support platform; the fifth floating support extends upward through the fifth mounting base toward the support platform.

8. The parts clamping device according to claim 6, characterized in that, The sixth limiting mechanism includes a sixth mounting base, and the sixth floating branch extends through the sixth mounting base toward the top of the support platform.

9. The parts clamping device according to claim 1, characterized in that, The locking pin includes a first end cap, a second end cap, a screw, a spindle, a positioning sleeve, a steel ball, and a knob. The lower end of the second end cap is externally connected to the first end cap. The upper end of the positioning sleeve is internally connected to the lower end of the second end cap. The spindle is disposed in the positioning sleeve. The lower end of the screw extends from the upper end of the second end cap and is connected to the top of the spindle. The screw is threadedly connected to the second end cap. The knob is disposed at the upper end of the screw. The positioning sleeve has multiple through holes arranged circumferentially. The spindle has multiple grooves arranged circumferentially. A steel ball is disposed in each groove. When the through holes and grooves are axially aligned, the steel ball extends out from the through holes.

10. The parts clamping device according to claim 1, characterized in that, The support platform and positioning components are symmetrically arranged in at least two sets in the X direction of the worktable.

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