Movable arm front fork clamp
By designing the multi-limiting mechanism of the boom fork clamp, the boom fork limits is solved in three directions, and the problem of unstable positioning of traditional clamp tools is improved, and welding quality and production efficiency are improved.
Patent Information
- Application Number
- CN202420274194.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-04
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-02-04
AI Technical Summary
When installing and clamping the boom fork, the clamping effect of traditional clamping tools is poor, resulting in unstable positioning and affecting the quality of point-fixed welding.
A boom fork clamp is designed, and a base and multiple limiting mechanisms (first limiting mechanism, second limiting mechanism and third limiting mechanism) are used to limit the boom fork in three directions to ensure the stable positional relationship between the components.
Through the use of the limiting mechanism, the welding quality is significantly improved, the boom fork adjustment process for preliminary welding is reduced, the production process is simplified and the production efficiency is improved.
Smart Images
Figure CN222643591U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of fixtures and tools, and in particular to a boom front fork fixture. Background Art
[0002] As a common and important equipment in construction machinery, excavators have higher and higher quality requirements and greater demand for them with the continuous development of industry and infrastructure. The boom fork of an excavator is an important transmission component. During production and manufacturing, it is necessary to use a fixture to position the various components of the boom fork for initial spot welding.
[0003] However, the conventional fixture is manually installed and clamped on the boom front fork, and the clamping effect of the fixture on the boom front fork is poor. The relative position relationship between the components of the boom front fork is less stable, resulting in poor spot welding quality. Utility Model Content
[0004] An embodiment of the present application provides a boom front fork clamp.
[0005] In the first aspect, the present application provides a boom front fork clamp, which is used to fix the boom front fork of an excavator, the boom front fork comprising a first side plate, a second side plate and a connecting plate, the first side plate, the connecting plate and the second side plate are stacked in sequence along a first direction, the boom front fork clamp comprises a base for supporting the boom front fork, a first limiting mechanism, a second limiting mechanism and a third limiting mechanism; the first limiting mechanism is arranged on the base, the first limiting mechanism is used to clamp the first side plate and the second side plate in the first direction, so that the first side plate and the second side plate are respectively pressed against the connecting plate; the second limiting mechanism is arranged on the base, the second limiting mechanism is used to press against the two opposite sides of the boom front fork in the second direction; the third limiting mechanism is arranged on the base, the third limiting mechanism is used to clamp the two opposite sides of the connecting plate in a third direction, and the third direction, the first direction and the second direction intersect each other.
[0006] Among them, in some optional embodiments, the first limiting mechanism includes a first clamping member and a second clamping member spaced apart in a first direction, the first clamping member is fixedly mounted on the base, and the first clamping member and the second clamping member are used to respectively press against the first side plate and the second side plate.
[0007] Among them, in some optional embodiments, the first clamping member is provided with a first contour-like limiting portion for fitting with the outer contour of the first side panel; the second clamping member is provided with a second contour-like limiting portion for fitting with the outer contour of the second side panel, and the first contour-like limiting portion and the second contour-like limiting portion are arranged with relative intervals.
[0008] Among them, in some optional embodiments, the first limiting mechanism also includes a clamping drive assembly, the clamping drive assembly is arranged on the base, and the second clamping member is connected to the clamping drive assembly; the clamping drive assembly is used to drive the second clamping member to move relative to the first clamping member to change the distance between the first clamping member and the second clamping member.
[0009] Among them, in some optional embodiments, the clamping drive assembly includes a fixed bracket, a first connecting rod, a clamping rocker and a second connecting rod, the fixed bracket is fixedly connected to the base; the first connecting rod is rotatably connected to the fixed bracket, and the second clamping member is installed on the first connecting rod; the clamping rocker is rotatably connected to the fixed bracket; the second connecting rod is rotatably connected between the first connecting rod and the clamping rocker, and when the clamping rocker rotates relative to the fixed bracket, it drives the second connecting rod, the first connecting rod and the second clamping member to move.
[0010] Among them, in some optional embodiments, the second limiting mechanism includes a first supporting member and a second supporting member spaced apart in the second direction; the first supporting member extends along the first direction and is used to simultaneously support the first side plate and the second side plate; the second supporting member extends along the first direction and is used to simultaneously support the first side plate and the second side plate.
[0011] Wherein, in some optional embodiments, the third limiting mechanism includes a tightening component and an adjusting component spaced apart in the third direction;
[0012] The pressing component is movably arranged on the base, and the pressing component can move along the third direction to change the distance between the pressing component and the adjusting component;
[0013] The adjusting component is used to press against the side of the connecting plate away from the pressing component. The adjusting component and the pressing component are used to cooperate to clamp the connecting plate to limit the movement of the connecting plate in the third direction.
[0014] Among them, in some optional embodiments, the clamping assembly includes a guide rail and a clamping slider, the guide rail is arranged on the base along a third direction, the clamping slider is slidably connected to the guide rail, and the clamping slider can move toward the direction close to the connecting plate until it is clamped against the connecting plate.
[0015] In some optional embodiments, the clamping assembly further includes a locking member, which is passed through the clamping slider and locked to the base to limit the movement of the clamping slider on the guide rail.
[0016] Among them, in some optional embodiments, the adjustment component includes two clamping members, the two clamping members are arranged at intervals in the second direction, the two clamping members are used to clamp different parts of the connecting plate, the force direction of the pressure applied by the clamping members on the connecting plate intersects with the third direction, and the straight lines corresponding to the force directions of the two clamping members form angles with each other.
[0017] Among them, in some optional embodiments, each clamping member includes a fixed seat and an adjusting rod, the fixed seat is fixedly set on the base, the adjusting rod is movably passed through the fixed seat, the adjusting rod is used to move toward the direction of the connecting plate until it is pressed against the connecting plate, the moving direction of the adjusting rod relative to the fixed seat intersects with the third direction, and the moving directions of the adjusting rods of the two clamping members form an angle with each other.
[0018] Among them, in some optional embodiments, the boom front fork clamp also includes a positioning mechanism for positioning the boom front fork, the positioning mechanism includes a positioning bracket, a first positioning pin and a second positioning pin, the positioning bracket is fixedly arranged on the base, the first positioning pin and the second positioning pin are spaced apart on the positioning bracket in the first direction, the first positioning pin is used to penetrate the first side plate to position the first side plate, and the second positioning pin is used to penetrate the second side plate to position the second side plate.
[0019] The embodiment of the present application provides a boom front fork clamp, the boom front fork is used to clamp the boom front fork of an excavator, the boom front fork includes a first side plate, a connecting plate and a second side plate stacked in sequence along a first direction, and the boom front fork clamp includes a base and a first limiting mechanism, a second limiting mechanism and a third limiting mechanism arranged on the base. The boom front fork is arranged on the base, and the first limiting mechanism can clamp the first side plate and the second side plate along the first direction, so that the first side plate and the second side plate are respectively pressed against the connecting plate to complete the limiting of the boom front fork in the first direction. The second limiting mechanism is used to press against the two opposite sides of the boom front fork in the second direction to complete the limiting of the boom front fork in the second direction. The third limiting mechanism is used to clamp the two opposite sides of the connecting plate in the third direction to limit the movement of the connecting plate in the third direction, so as to ensure that the positional relationship of the connecting plate relative to the first side plate and the second side plate remains unchanged, so as to achieve the limiting of the boom front fork in the third direction. The boom front fork fixture in this embodiment limits the boom front fork in three directions through the first limiting mechanism, the second limiting mechanism and the third limiting mechanism, which can keep the positional relationship between any component of the boom front fork and other components stable before the spot welding process, and at the same time make the matching accuracy of the mutual positional relationship between the various components meet the structural requirements of the boom front fork, which will significantly improve the welding quality. After the boom front fork undergoes the spot welding process, the high-precision spot welding process can reduce the adjustment process of the initially welded boom front fork, simplify the production process of the boom front fork, and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the implementation manner will be briefly introduced below. Obviously, the drawings described below are only some implementation manners of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0021] Figure 1 It is a schematic structural diagram of a boom front fork clamp and a boom front fork provided in an embodiment of the present application.
[0022] Figure 2 It is a schematic diagram of the structure of a boom front fork clamped by a boom front fork clamp provided in an embodiment of the present application.
[0023] Figure 3 It is a schematic diagram of the structure of the boom front fork clamp provided in an embodiment of the present application.
[0024] Figure 4 It is a schematic structural diagram of the boom front fork clamp provided in an embodiment of the present application from another angle.
[0025] Figure 5 yes Figure 1 A schematic structural diagram of the first limiting mechanism is shown.
[0026] Figure 6 yes Figure 4 A schematic structural diagram of the clamping drive assembly of the first limiting mechanism is shown.
[0027] Figure 7 yes Figure 6 A partially enlarged structural schematic diagram of the clamping drive assembly is shown.
[0028] Figure 8 yes Figure 1 A schematic structural diagram of the second limiting mechanism is shown.
[0029] Figure numbers: 1000, boom front fork clamp, 900, boom front fork, 910, first side plate, 920, second side plate, 930, connecting plate, 931, outer peripheral surface, 800, base 800, 810, lifting ring, 820, through hole, 100, first limiting mechanism, 110, first clamping member, 111, first contour limiting portion, 112, first limiting groove, 120, second clamping member, 121, second contour limiting portion, 122, second limiting groove, 130, clamping drive assembly, 131, fixing bracket, 132, first connecting rod, 133, pressing rocker Rod, 134, second connecting rod, 200, second limiting mechanism, 210, first abutting member, 220, second abutting member, 300, third limiting mechanism, 310, clamping assembly, 311, guide rail, 312, clamping slider, 3126, auxiliary clamping portion, 3127, abutting surface, 3128, surface contact portion, 3129, sliding portion, 313, locking member, 320, adjusting assembly, 321, clamping member, 3211, fixing seat, 3212, adjusting rod, 400, positioning mechanism, 410, positioning bracket, 420, first positioning pin, 430, second positioning pin. DETAILED DESCRIPTION
[0030] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application.
[0031] See also Figure 1 The embodiment of the present application provides a boom front fork clamp 1000 for clamping the various components of the boom front fork 900, so that the multiple components of the boom front fork 900 are fixed at preset positions and preliminarily form a boom front fork 900 of an integrated structure. Specifically, the boom front fork 900 in the present embodiment includes at least a first side plate 910, a second side plate 920 and a connecting plate 930, wherein the connecting plate 930 is disposed between the first side plate 910 and the second side plate 920, and after the first side plate 910, the second side plate 920 and the connecting plate 930 are spot-welded, the connecting plate 930 is fixedly connected between the first side plate 910 and the second side plate 920 to complete the preliminary connection of the various components of the boom front fork 900.
[0032] See also Figure 1 In this embodiment, the boom front fork clamp 1000 and the boom front fork 900 will be described in multiple directions, so as to explain the limiting method of the boom front fork clamp 1000 on the boom front fork 900, and explain the structural features of the boom front fork clamp 1000 and the boom front fork 900. Specifically, this embodiment sets three directions based on the structural features of the boom front fork clamp 1000 and the boom front fork 900, and the three directions include a first direction A (the direction indicated by the coordinate A in the figure), a second direction B (the direction indicated by the coordinate B in the figure) and a third direction C (the direction indicated by the coordinate C in the figure) that intersect each other. In some embodiments, a fourth direction, a fifth direction, etc. (not shown in the figure) can also be set according to the structural features of the boom front fork clamp 1000 and the boom front fork 900.
[0033] See also Figure 1 and Figure 2In this embodiment, the first side plate 910, the connecting plate 930 and the second side plate 920 are sequentially stacked along the first direction A, so the boom front fork clamp 1000 at least limits the boom front fork 900 in the first direction A. The boom front fork clamp 1000 in this embodiment includes a base 800 and a first limiting mechanism 100, and the first limiting mechanism 100 is disposed on the base 800. When the boom front fork 900 is placed on the base 800, the first limiting mechanism 100 can clamp the first side plate 910 and the second side plate 920 along the first direction A, so that the first side plate 910 and the second side plate 920 are respectively pressed against the connecting plate 930, so as to limit the boom front fork 900 in the first direction A.
[0034] See also Figure 1 , Figure 3 and Figure 4 The boom front fork clamp 1000 in this embodiment further includes a second limiting mechanism 200 and a third limiting mechanism 300. Specifically, the second limiting mechanism 200 is disposed on the base 800, and is used to hold the two opposite sides of the boom front fork 900 in the second direction B, so as to limit the boom front fork 900 in the second direction B. The third limiting mechanism 300 is disposed on the base 800, and is used to clamp the two opposite sides of the connecting plate 930 in the third direction C, so as to limit the movement of the connecting plate 930 in the third direction C, so as to ensure that the positional relationship of the connecting plate 930 relative to the first side plate 910 and the second side plate 920 remains unchanged, so as to limit the boom front fork 900 in the third direction C.
[0035] The boom front fork fixture 1000 in this embodiment limits the boom front fork 900 in three directions through the first limiting mechanism 100, the second limiting mechanism 200 and the third limiting mechanism 300, so that the positional relationship between any component of the boom front fork 900 and other components can be kept stable before the spot welding process, and the matching accuracy of the mutual positional relationship between the components can meet the structural requirements of the boom front fork 900, which will significantly improve the welding quality. After the boom front fork 900 undergoes the spot welding process, the high-precision spot welding can reduce the adjustment process of the initially welded boom front fork 900, simplify the production process of the boom front fork 900, and improve production efficiency.
[0036] See also Figure 1In some embodiments, a plurality of lifting rings 810 are provided on the base 800, so that an external lifting equipment can move the boom front fork clamp 1000 together with the boom front fork 900 to a designated position or to the next production process workshop through the plurality of lifting rings 810, which can save manpower, and can pre-install and match the boom front fork 900 and the boom front fork clamp 1000 to improve production efficiency, while avoiding the narrow environment of the spot welding process that is inconvenient to install or even collides with the spot welding equipment.
[0037] See also Figure 5 In some other embodiments, the base 800 is hollowed out at multiple locations and defines multiple through holes 820. On the one hand, the weight of the boom front fork clamp 1000 can be reduced, and on the other hand, during the welding process, welding slag can be discharged from the boom front fork clamp 1000 in time through the through holes 820, so that the boom front fork clamp 1000 can be kept clean.
[0038] Next, the specific structures of the first limiting mechanism 100 , the second limiting mechanism 200 and the third limiting mechanism 300 and the manner in which the three limiting mechanisms limit the boom front fork 900 in their respective designated directions will be specifically introduced.
[0039] See also Figure 1 , Figure 3 and Figure 4 In this embodiment, the first limit mechanism 100 includes a first clamping member 110 and a second clamping member 120, wherein the first clamping member 110 is fixedly mounted on the base 800, and the second clamping member 120 is spaced apart from the first clamping member 110 along the first direction A. In the actual application scenario, the boom front fork 900 is disposed between the first clamping member 110 and the second clamping member 120. As mentioned above, the first side plate 910, the connecting plate 930 and the second side plate 920 of the boom front fork 900 in this embodiment are sequentially stacked along the first direction A. Therefore, the first clamping member 110 and the second clamping member 120 in this embodiment will be able to respectively press against the first side plate 910 and the second side plate 920, so that the first side plate 910 and the second side plate 920 are respectively pressed tightly against the opposite sides of the connecting plate 930, so as to clamp and limit the various components of the boom front fork 900 in the first direction A.
[0040] The first limiting mechanism 100 in this embodiment clamps the boom front fork 900 from the first direction A according to the structural features of the boom front fork 900, so that the relative positional relationship between the first side plate 910, the connecting plate 930 and the second side plate 920 in the first direction A can be stabilized. At the same time, the friction between the first side plate 910 and the connecting plate 930, and between the second side plate 920 and the connecting plate 930 can be increased, so that the connecting plate 930 and the first side plate 910 can be limited to positionally deviate on the plane where the contact surfaces of the two are located, and the connecting plate 930 and the second side plate 920 can be limited to positionally deviate on the plane where the contact surfaces of the two are located, so as to further improve the stability of the positional relationship among the first side plate 910, the connecting plate 930 and the second side plate 920.
[0041] See also Figure 5 Specifically, in this embodiment, the first clamping member 110 is arranged corresponding to the first side plate 910, and the second clamping member 120 is arranged corresponding to the second side plate 920, that is, the first clamping member 110 is suitable for being arranged on the side of the first side plate 910 away from the second side plate 920, and the second clamping member 120 is suitable for being arranged on the side of the second side plate 920 away from the first side plate 910.
[0042] In this embodiment, the first clamping member 110 is provided with a first contour-profiling limiting portion 111, and the first contour-profiling limiting portion 111 corresponds to at least part of the outer contour of the first side plate 910, and the first contour-profiling limiting portion 111 and the outer contour of the first side plate 910 can fit together to limit the movement of the first side plate 910 relative to the first clamping member 110, that is, to limit the positional deviation of the first side plate 910 and the first clamping member 110 in the plane where the contact surfaces of the two are located. In this embodiment, the first side plate 910 has a local protruding structure, and correspondingly, one side of the first clamping member 110 has a local concave structure and defines a first limiting groove 112, that is, the first contour-profiling limiting portion 111, and the shape of the first limiting groove 112 is adapted to the shape of the protruding structure of the first side plate 910. It can be understood that in actual application scenarios, after the protruding structure on the first side plate 910 is engaged with the first limiting groove 112, the relative movement between the first side plate 910 and the first clamping member 110 can be limited at least in the second direction B and the third direction C.
[0043] Similarly, the second clamping member 120 in this embodiment is provided with a second profiling limiting portion 121, which corresponds to at least part of the outer contour of the second side plate 920, and the second profiling limiting portion 121 and the outer contour of the second side plate 920 can fit together to limit the movement of the second side plate 920 relative to the second clamping member 120, that is, to limit the positional displacement of the second side plate 920 and the second clamping member 120 in the plane where the contact surface of the two is located. In this embodiment, the second side plate 920 has a local protruding structure, and correspondingly, one side of the second clamping member 120 has a local concave structure and defines a second limiting groove 122, that is, the second profiling limiting portion 121, and the shape of the second limiting groove 122 is adapted to the shape of the protruding structure of the second side plate 920. It can be understood that after the protruding structure on the second side plate 920 is engaged with the second limiting groove 122, the relative movement of the second side plate 920 and the second clamping member 120 can be limited at least in the second direction B and the third direction C.
[0044] In this embodiment, by providing a first contour-like limiting portion 111 on the first clamping member 110 to cooperate with the first side plate 910, and providing a second contour-like limiting portion 121 on the second clamping member 120 to cooperate with the second side plate 920, it is possible to strengthen the position limitation of the boom front fork 900 by the first limiting mechanism 100 in directions other than the first direction A, improve the limiting effect of the first limiting mechanism 100 on the boom front fork 900, and further stabilize the relative position relationship between the components of the boom front fork 900, thereby facilitating improvement of the spot welding of the boom front fork 900 and the welding effect of subsequent welding.
[0045] See also Figure 5 , Figure 6 and Figure 7 The first limiting mechanism 100 in this embodiment further includes a clamping drive assembly 130, which is fixedly connected to the base 800. The second clamping member 120 is movably connected to the clamping drive assembly 130 and is in transmission connection with some components of the clamping drive assembly 130, so that the clamping drive assembly 130 can drive the second clamping member 120 to move relative to the first clamping member 110 to change the distance between the first clamping member 110 and the second clamping member 120, so that the boom front fork clamp 100 can clamp or release the boom front fork 900. In this embodiment, the clamping drive assembly 130 is used to enable the second clamping member 120 to move in a direction away from the first clamping member 110, so as to facilitate the first side plate 910, the connecting plate 930 and the second side plate 920 to be installed on the boom front fork clamp 1000 in sequence; and the second clamping member 120 is enabled to move in a direction close to the first clamping member 110, so that the second clamping member 120 can abut against the second side plate 920 and cooperate with the first clamping member 110 to clamp the boom front fork 900, thereby improving the limiting strength of the first limiting mechanism 100.
[0046] See also Figure 6 and Figure 7 Specifically, the clamping drive assembly 130 includes a fixed bracket 131, a first connecting rod 132, a clamping rocker 133 and a second connecting rod 134. The fixed bracket 131 is fixedly connected to the base 800, the first connecting rod 132 is rotatably connected to the fixed bracket 131, and the second clamping member 120 is disposed on the first connecting rod 132 and rotates with the first connecting rod 132 to establish a rotatable connection relationship with the fixed bracket 131. The clamping rocker 133 is rotatably connected to the fixed bracket 131, and the second connecting rod 134 is rotatably connected between the first connecting rod 132 and the clamping rocker 133, so that a linkage connection relationship is established between the clamping rocker 133 and the first connecting rod 132. When the clamping rocker 133 rotates relative to the fixed bracket 131, the first link 132 and the second clamp 120 can be driven away from the boom front fork 900 through the second link 134, and the first link 132 and the second clamp 120 can also be driven close to the boom front fork 900 through the second link 134. It should be understood that the fixed bracket 131, the first link 132, the clamping rocker 133 and the second link 134 constitute a four-bar linkage. In some embodiments, the first connecting rod 132, the clamping rocker 133, and the second connecting rod 134 are in a clamped state, and the hinge points of the clamping rocker 133 and the fixed bracket 131, the hinge points of the clamping rocker 133 and the second connecting rod 134, and the hinge points of the second connecting rod 134 and the first connecting rod 132 are basically located on the same straight line, at the dead point position of the first connecting rod 132 and the second connecting rod 134. In the absence of external force or torque, the second connecting rod 134 can basically maintain a vertical clamping state, so that the second clamping member 120 can be maintained in a state of clamping the second side plate 920. In this embodiment, the second clamping member 120 is driven by a connecting rod structure, which has a simple structure and is easy to operate and repair.
[0047] See also Figure 8 In this embodiment, the second limiting mechanism 200 includes a first abutting member 210 and a second abutting member 220 arranged at intervals along the second direction B, and the boom front fork 900 is arranged between the first abutting member 210 and the second abutting member 220. In this embodiment, the first abutting member 210 is extended along the first direction A, so that the first abutting member 210 can abut the first side plate 910 and the second side plate 920 at the same time. Correspondingly, the second abutting member 220 is also extended along the first direction A, so that the second abutting member 220 can abut the first side plate 910 and the second side plate 920 at the same time.
[0048] In this embodiment, in combination with the positional characteristics of the first side plate 910 and the second side plate 920 overlapping along the first direction A, the first supporting member 210 and the second supporting member 220 are extended along the first direction A, so that the first supporting member 210 and the second supporting member 220 can simultaneously support the first side plate 910 and the second side plate 920 after cooperation. On the one hand, the boom front fork 900 is clamped in the second direction B, and the movement of the first side plate 910 and the second side plate 920 in the second direction B is restricted, thereby improving the stability of the positional relationship between the various components of the boom front fork 900. On the other hand, the structure of the boom front fork clamp 1000 is simplified, thereby reducing the complexity of using the boom front fork clamp 1000. In some application environments, the first side panel 910 and the second side panel 920 have approximately the same outer contour. The second limiting mechanism 200 in this embodiment can keep the position states of the outer contours of the first side panel 910 and the second side panel 920 consistent, and can determine whether the limiting effect of the second limiting mechanism 200 in the second direction B meets the requirements by observing whether the position states of the outer contours of the first side panel 910 and the second side panel 920 are consistent.
[0049] See also Figure 1 , Figure 3 and Figure 4 The third limiting mechanism 300 in this embodiment includes a clamping assembly 310 and an adjusting assembly 320 that are spaced apart along the third direction C. The clamping assembly 310 and the adjusting assembly 320 in this embodiment are used to clamp the connecting plate 930 along the third direction C, so the connecting plate 930 is arranged between the clamping assembly 310 and the adjusting assembly 320. The clamping assembly 310 is movably arranged on the base 800, and the clamping assembly 310 can move toward the direction close to the connecting plate 930 to be clamped against the connecting plate 930. The adjusting assembly 320 is used to clamp the side of the connecting plate 930 away from the clamping assembly 310, and the adjusting assembly 320 and the clamping assembly 310 cooperate to clamp the connecting plate 930 together, thereby limiting the movement of the connecting plate 930 in the third direction C.
[0050] See also Figure 1 , Figure 3 and Figure 4In this embodiment, the pressing assembly 310 and the adjusting assembly 320 are respectively pressed against the two opposite sides of the connecting plate 930 in the third direction C, and the pressing assembly 310 can adjust the position on the base 800. The pressing assembly 310 and the adjusting assembly 320 cooperate to fully clamp the connecting plate 930, improve the position stability of the connecting plate 930, and limit the movement of the connecting plate 930. In addition, when the position of the connecting plate 930 is adjusted to be approximately in the preset designated position, when the first limiting mechanism 100 (and the second limiting mechanism 200) clamp the first side plate 910 and the second side plate 920 to limit the movement of the two in the first direction A (and the second direction B), the high-strength clamping action of the third limiting mechanism 300 on the connecting plate 930 can prevent the first limiting mechanism 100 and the second limiting mechanism 200 from affecting the position of the connecting plate 930, and can also use the connecting plate 930 with a stable position as a reference to adjust the position of the first side plate 910 and the second side plate 920.
[0051] See also Figure 3 and Figure 4 The pressing assembly 310 in this embodiment includes a guide rail 311 and a pressing slider 312. The guide rail 311 is arranged on the base 800 along the third direction C. The pressing slider 312 is slidably connected to the guide rail 311. The pressing slider 312 can move toward the direction close to the connecting plate 930 until it presses against the connecting plate 930. In this embodiment, the pressing assembly 310 is given a movable motion feature by the guide rail 311 and the pressing slider 312. The matching relationship between the guide rail 311 and the pressing slider 312 is simple, and the guide rail 311 makes the pressing slider 312 more flexible and easy to operate. In other embodiments, the pressing assembly 310 can be given a movable feature by a hydraulic rod or a linear motor.
[0052] See also Figure 1 and Figure 2 In this embodiment, the connecting plate 930 is bent, and the bent connecting plate 930 defines an internal space of the connecting plate 930 (not marked in the figure). One side of the bent connecting plate 930 defines an opening (not marked in the figure), and the opening is connected to the internal space of the connecting plate 930 and is provided toward the abutting assembly 310. The connecting plate 930 also has an outer peripheral surface 931 facing the adjustment assembly 320. In this embodiment, a matching plate (not marked in the figure) is provided in the internal space of the connecting plate 930, and the matching plate is used to match with the abutting slider 312 to form a surface-to-surface contact relationship to improve the stability of the matching relationship.
[0053] Specifically, the number of guide rails 311 in this embodiment is set to two, and the two guide rails 311 are arranged in parallel. The space between the two guide rails 311 is used to accommodate the boom front fork 900, and the abutting slider 312 is slidably connected and cooperated with the two guide rails 311, so that the movement state of the abutting slider 311 is more stable. The abutting slider 312 in this embodiment includes a sliding portion 3129 and a surface contact portion 3128, and the two ends of the sliding portion 3129 are slidably connected to the two guide rails 311 respectively. The surface contact portion 3128 is connected to the sliding portion 3129 and protrudes in the third direction C relative to the sliding portion 3129, and the surface contact portion 3128 has a larger abutting surface 3127. In an actual application scenario, when the boom front fork 900 is installed on the base 800, the surface contact portion 3128 protrudes relative to the sliding portion 3129 toward the opening, that is, the internal space of the connecting plate 930, and the abutting surface 3127 is located on the side of the surface contact portion 3128 facing the opening. The sliding portion 3129 can move toward the connecting plate 930. During this process, the surface contact portion 3128 extends into the internal space of the connecting plate 930 through the opening until the abutting surface 3127 abuts against the surface of the mating plate, so as to establish a surface-to-surface contact and mating relationship between the abutting slider 312 and the mating plate and the connecting plate 930, thereby improving the tightening effect of the abutting slider 312 on the connecting plate 930.
[0054] In some embodiments, the surface contact portion 3128 is roughly arranged in the middle position of the sliding portion 3129 so that the surface contact portion 3128 can avoid the two sides of the sliding portion 3129. The two sides of the sliding portion 3129 define two auxiliary pressing portions 3126, and the two auxiliary pressing portions 3126 are arranged one-to-one with the two ends of the bent connecting plate 930. In the actual application environment mentioned above, when the surface contact portion 3128 abuts against the surface of the matching plate, the two auxiliary pressing portions can respectively abut against the two ends of the connecting plate 930, which can improve the pressing effect on the connecting plate 930 on the one hand, and on the other hand, the two auxiliary pressing portions 3126 can disperse the stress of the pressing slider 311 on the connecting plate 930 to multiple positions of the connecting plate 930, so as to avoid excessive stress at the matching plate of the connecting plate 930, which may cause the connecting plate 930 to deform or break.
[0055] See also Figure 4, the pressing assembly 310 in this embodiment also includes a locking member 313, which is inserted into the pressing slider 312 and locked to the base 800 to limit the movement of the pressing slider 312 on the guide rail 311. This embodiment does not limit the way in which the locking member 313 realizes the positioning of the pressing slider 312 at a certain position on the base 800. For example, the base 800 may be provided with a plurality of pin holes, and the locking member 313 can be embedded in the pin holes to achieve position limiting. For another example, the locking member 313 and the pressing slider 312 are matched through a threaded structure, and the locking member 313 can be pressed against the base 800 through the threaded structure and maintain a pressed state to achieve position limiting of the pressing slider 312. In this embodiment, the pressing slider 312 is fixed to the base 800 by the locking member 313, so that the pressing slider 312 can maintain a state of pressing against the connecting plate 930, thereby stabilizing the position state of the connecting plate 930.
[0056] See also Figure 3 and Figure 4 The adjustment assembly 320 in this embodiment includes two abutting members 321, and the two abutting members 321 are arranged at intervals along the second direction B, so that the two abutting members 321 can abut the connecting plate 930 from both sides of the connecting plate 930 in the third direction C. The two abutting members 321 can abut against different parts of the connecting plate 930. In this embodiment, the direction of pressure applied by the abutting members 321 to the connecting plate 930 intersects with the third direction C, and the straight lines where the pressure directions applied by the two abutting members 321 to the connecting plate 930 are located form angles with each other.
[0057] It should be understood that “the straight lines on which the directions of the pressures respectively applied by the two pressing members 321 to the connecting plate 930 are located are at angles to each other” means that the straight lines on which the pressures respectively applied by the two pressing members 321 to the connecting plate 930 are located are not parallel and are not colinear. That is, the pressures respectively applied by the two pressing members 321 to the connecting plate 930 have components in the second direction B and the third direction C. Among them, the components of the pressures respectively applied by the two pressing members 321 to the connecting plate 930 in the second direction B are substantially the same in magnitude, so as to be able to limit the movement of the connecting plate 930 in the second direction B; the resultant force of the components of the pressures respectively applied by the two pressing members 321 to the connecting plate 930 in the second direction B can be substantially the same as the force applied by the pressing assembly 310 to the connecting plate 930 in the foregoing text, so as to achieve the purpose of limiting the movement of the connecting plate 930 in the third direction C.
[0058] In this embodiment, two clamping members 321 are used as the adjustment components 320, which can cooperate with the clamping components 310 to limit the movement of the connecting plate 930 in the third direction C, and can also limit the movement of the connecting plate 930 in the second direction B, thereby further improving the limiting effect of the third limiting mechanism 300 on the connecting plate 930, so that the position of the connecting plate 930 is stable, and the welding accuracy of the boom front fork 900 can be improved.
[0059] See also Figure 3 and Figure 4 In this embodiment, each abutting member 321 includes a fixed seat 3211 and an adjusting rod 3212. The fixed seat 3211 is fixedly arranged on the base 800, and the adjusting rod 3212 is movably arranged on the fixed seat 3211. The adjusting rod 3212 is used to move toward the direction of the connecting plate 930 to abut against the connecting plate 930, so as to apply pressure to the connecting plate 930. Among them, the moving direction of the adjusting rod 3212 intersects with the third direction C, and the moving directions of the two adjusting rods 3212 form an angle with each other, so as to achieve the purpose of the two abutting members 321 being able to cooperate with the abutting assembly 310 to limit the movement of the connecting plate 930 in the third direction C and to limit the movement of the connecting plate 930 in the second direction B.
[0060] In this embodiment, the fixing seat 3211 and the adjusting rod 3212 are connected by threads, so that the adjusting rod 3212 can move relative to the fixing seat 3211, and the adjusting rod 3212 and the fixing seat 3211 can be kept in the adjusted position without external force or torque, so that the adjusting rod 3212 has the ability to move toward the connecting plate 930 and abut against the connecting plate 930. In some other embodiments, the adjusting rod 3212 is provided with a plurality of slots in its extension direction, and correspondingly, a block is provided on the mounting seat, and the block can cooperate with any one of the plurality of slots to change the distance between the adjusting rod 3212 and the 930 connecting plate.
[0061] See also Figure 1 , Figure 3 and Figure 4 In this embodiment, the outer peripheral surface of the bent connecting plate 930 is an arc surface, and each adjusting rod 3212 is pressed against the arc surface of the connecting plate 930. In other embodiments, the outer peripheral surface of the connecting plate 930 can be composed of several planes connected in succession. In this embodiment, the position angle of the adjusting rod 3212 relative to the connecting plate 930 can be set according to the outer peripheral surface of the connecting plate 930 and the end surface of the adjusting rod 3212, so as to maximize the contact area between the end surface of the adjusting rod 3212 and the outer peripheral surface of the connecting plate 930, avoid the adjusting rod 3212 and the connecting plate 930 from slipping, and avoid scratches on the surface of the connecting plate 930.
[0062] See also Figure 1In this embodiment, the clamp further includes a positioning mechanism 400, which includes a positioning bracket 410, a first positioning pin 420 and a second positioning pin 430. The positioning bracket 410 is fixedly arranged on the base 800, and the first positioning pin 420 and the second positioning pin 430 are arranged on the positioning bracket 410 at intervals along the first direction A. The first positioning pin 420 is used to penetrate the first side plate 910 to position the first side plate 910, and the second positioning pin 430 is used to penetrate the second side plate 920 to position the second side plate 920. In this embodiment, the boom front fork 900 can be limited to a smaller range of movement through the first positioning pin 420 and the second positioning pin 430, so that the boom front fork 900 is convenient to cooperate with the first limiting mechanism 100, the second limiting mechanism 200 and the third limiting mechanism 300, and the positioning structure can cooperate with the three limiting mechanisms respectively to further limit the movement of the boom front fork 900 in three directions, thereby improving the limiting effect of the boom front fork clamp 1000 on the boom front fork 900.
[0063] The embodiment of the present application provides a boom front fork clamp 1000, wherein the boom front fork 900 includes a first side plate 910, a connecting plate 930, and a second side plate 920 stacked in sequence along a first direction A, and the boom front fork clamp 1000 includes a base 800 and a first limiting mechanism 100, a second limiting mechanism 200, and a third limiting mechanism 300 disposed on the base 800. The boom front fork 900 is disposed on the base 800, and the first limiting mechanism 100 can clamp the first side plate 910 and the second side plate 920 along the first direction A, so that the first side plate 910 and the second side plate 920 are respectively pressed against the connecting plate 930, so as to limit the boom front fork 900 in the first direction A. The second limiting mechanism 200 is used to press against the two opposite sides of the boom front fork 900 in the second direction B, so as to limit the boom front fork 900 in the second direction B. The third limiting mechanism 300 is used to clamp the two opposite sides of the connecting plate 930 in the third direction C to limit the movement of the connecting plate 930 in the third direction C, so as to ensure that the positional relationship of the connecting plate 930 relative to the first side plate 910 and the second side plate 920 remains unchanged, so as to limit the boom front fork 900 in the third direction C. The boom front fork clamp 1000 in this embodiment limits the boom front fork 900 in three directions through the first limiting mechanism 100, the second limiting mechanism 200 and the third limiting mechanism 300, so as to keep the positional relationship between any component and other components of the boom front fork 900 stable before the spot welding process, and at the same time make the matching accuracy of the mutual positional relationship between each component reach the structural requirement standard of the boom front fork 900, which will significantly improve the welding quality. After the boom front fork 900 undergoes the spot welding process, the high-precision spot welding process can reduce the adjustment process of the initially welded boom front fork 900, simplify the production process of the boom front fork 900, and improve the production efficiency.
[0064] In the specification of this application, certain words are used to refer to specific components in the specification and claims. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of the components as the criterion for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to"; "substantially" means that those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.
[0065] In the description of the present application, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", and "inside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are merely simplified descriptions for the convenience of describing the present application. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.
[0066] In this application, unless otherwise clearly specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be internal communication between two elements, or it can be only surface contact. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0067] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0068] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A boom front fork clamp, characterized in that: The boom front fork clamp is used to fix the boom front fork of the excavator, and the boom front fork includes a first side plate, a second side plate and a connecting plate, and the first side plate, the connecting plate and the second side plate are stacked in sequence along a first direction. The boom front fork clamp includes: A base for carrying the boom front fork; a first limiting mechanism, disposed on the base, and used for clamping the first side plate and the second side plate in the first direction so that the first side plate and the second side plate are respectively pressed against the connecting plate; A second limiting mechanism, disposed on the base, the second limiting mechanism being used to abut against two opposite sides of the boom front fork in a second direction; and A third limiting mechanism is arranged on the base, and is used for clamping two opposite sides of the connecting plate in a third direction, wherein the third direction, the first direction, and the second direction intersect each other.
2. The boom front fork clamp according to claim 1, characterized in that: The first limiting mechanism includes a first clamping member and a second clamping member spaced apart in the first direction, the first clamping member is fixedly mounted on the base, and the first clamping member and the second clamping member are used to respectively press against the first side plate and the second side plate.
3. The boom front fork clamp according to claim 2, characterized in that: The first clamping member is provided with a first contour-matching limiting portion for fitting with the outer contour of the first side plate; the second clamping member is provided with a second contour-matching limiting portion for fitting with the outer contour of the second side plate, and the first contour-matching limiting portion and the second contour-matching limiting portion are arranged with relative spacing.
4. The boom front fork clamp according to claim 2, characterized in that: The first limiting mechanism also includes a clamping drive assembly, which is arranged on the base, and the second clamping member is connected to the clamping drive assembly; the clamping drive assembly is used to drive the second clamping member to move relative to the first clamping member to change the distance between the first clamping member and the second clamping member.
5. The boom front fork clamp according to claim 4, characterized in that: The clamping drive assembly comprises: A fixed bracket, fixedly connected to the base; A first connecting rod is rotatably connected to the fixed bracket, and the second clamping member is mounted on the first connecting rod; A compression rocker, rotatably connected to the fixed bracket; and The second connecting rod is rotatably connected between the first connecting rod and the clamping rocker. When the clamping rocker rotates relative to the fixed bracket, the second connecting rod, the first connecting rod and the second clamping member are driven to move.
6. The boom front fork clamp according to claim 1, characterized in that: The second limiting mechanism includes a first supporting member and a second supporting member spaced apart in the second direction; the first supporting member extends along the first direction and is used to simultaneously support the first side plate and the second side plate; the second supporting member extends along the first direction and is used to simultaneously support the first side plate and the second side plate.
7. The boom front fork clamp according to claim 1, characterized in that: The third limiting mechanism comprises a tightening component and an adjusting component which are spaced apart in the third direction; The pressing component is movably disposed on the base, and the pressing component can move along the third direction to change the distance between the pressing component and the adjusting component; The adjusting assembly is used to press against a side of the connecting plate away from the pressing assembly, and the adjusting assembly and the pressing assembly are used to cooperate to clamp the connecting plate to limit the movement of the connecting plate in the third direction.
8. The boom front fork clamp according to claim 7, characterized in that: The pressing assembly includes a guide rail and a pressing slider, wherein the guide rail is arranged on the base along the third direction, and the pressing slider is slidably connected to the guide rail. The pressing slider can move toward a direction close to the connecting plate until it presses against the connecting plate.
9. The boom front fork clamp according to claim 8, characterized in that: The clamping assembly further includes a locking member, which is passed through the clamping slider and locked to the base to limit the movement of the clamping slider on the guide rail.
10. The boom front fork clamp according to claim 7, characterized in that: The adjustment assembly includes two clamping members, which are spaced apart in the second direction and used to clamp different parts of the connecting plate. The force direction of the pressure applied by the clamping members on the connecting plate intersects with the third direction, and the straight lines corresponding to the force directions of the two clamping members form angles with each other.
11. The boom front fork clamp according to claim 10, characterized in that: Each of the clamping members includes a fixed seat and an adjusting rod, wherein the fixed seat is fixedly disposed on the base, and the adjusting rod is movably penetrated through the fixed seat, and the adjusting rod is used to move toward the direction of the connecting plate until it is pressed against the connecting plate, and the moving direction of the adjusting rod relative to the fixed seat intersects with the third direction, and the moving directions of the adjusting rods of the two clamping members form an angle with each other.
12. The boom front fork clamp according to any one of claims 1 to 11, characterized in that: The boom front fork clamp also includes a positioning mechanism for positioning the boom front fork, the positioning mechanism includes a positioning bracket, a first positioning pin and a second positioning pin, the positioning bracket is fixedly arranged on the base, the first positioning pin and the second positioning pin are spaced apart from each other on the positioning bracket in the first direction, the first positioning pin is used to penetrate the first side plate to position the first side plate, and the second positioning pin is used to penetrate the second side plate to position the second side plate.