Hook arm welding tool and garbage truck hook arm

Abstract

The utility model relates to the technical field of hook arm vehicles, and discloses a hook arm welding tool which comprises a tool platform, and a rotating shaft positioning group, a first pressing mechanism, a pin shaft positioning group, a positioning block, a second pressing mechanism and a longitudinal arm assembly sub-tool which are respectively arranged on the tool platform. The utility model further provides the garbage truck hook arm used for the hook arm welding tool. According to the hook arm welding tool, deformation of the part to be welded in the welding process is effectively avoided, and the welded part with the size meeting the requirement can be rapidly welded. The garbage truck coupler arm assembled and welded through the coupler arm welding tool is high in quality, and the operation reliability of a coupler arm type garbage truck is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of hooklift truck technology, and in particular to a hooklift welding fixture and a garbage truck hooklift. Background Technology

[0002] Hook-lift garbage trucks, also known as detachable garbage trucks, are mainly used in municipal sanitation and large factories and mines, etc., to collect and transport various types of garbage. The hook arm, a crucial component of the hook-lift garbage truck, has a hook at one end that hooks onto the crossbeam at the front of the loading container. Rotating the hook arm pulls the container above the truck body, and rotating it in the opposite direction unloads the container, thus achieving rapid loading and unloading.

[0003] In the process of hook arm assembly, especially in the welding of components such as the cross arm assembly and the longitudinal arm assembly, the welding process used to mainly rely on measuring and drawing lines with a welding tape measure and using a right-angle ruler to determine the position of the workpiece before welding. This resulted in low welding efficiency and easily led to problems such as inconsistent welding dimensions and welding deformation, which in turn had an adverse effect on the quality of the hook arm. Utility Model Content

[0004] The main objective of this invention is to provide a hook arm welding fixture and a garbage truck hook arm, aiming to solve the technical problems of low welding efficiency, inconsistent welding dimensions, and welding deformation in the hook arm assembly process.

[0005] To achieve the above objectives, this utility model provides a hook arm welding fixture, including a fixture platform, and a rotating shaft positioning group, a first clamping mechanism, a pin shaft positioning group, a positioning block, a second clamping mechanism, and a longitudinal arm assembly fixture respectively installed on the fixture platform.

[0006] Preferably, the hook arm welding fixture further includes a support block mounted on the fixture platform, the support block being disposed on the side of the pin positioning group near the first clamping mechanism.

[0007] Preferably, the pivot positioning assembly includes a first coaxial clamp and a hook arm pivot, wherein the first coaxial clamp is configured to clamp both ends of the hook arm pivot.

[0008] Preferably, the pin positioning assembly includes a second coaxial clamp and a cylinder head pin, wherein the second coaxial clamp is configured to clamp both ends of the cylinder head pin.

[0009] Preferably, the first pressing mechanism includes two symmetrically arranged pressing block assemblies and an intermediate pressing beam; the pressing block assembly includes a support frame, a connecting pad, and a pressing member, the connecting pad is disposed on the support frame, the connecting end of the pressing member is fixedly installed on the connecting pad, and the pressing end of the pressing member is pressed against one end of the intermediate pressing beam.

[0010] Preferably, the clamping member includes a connecting seat mounted on the connecting pad by screws, a pressure bar with one end hinged to the connecting seat, a handle with one end hinged to the connecting seat and used to drive the pressure bar, and a connecting rod with both ends hinged to the pressure bar and the handle respectively.

[0011] Preferably, the longitudinal arm assembly tooling includes an upper arm fixing frame and a plurality of longitudinal arm clamping mechanisms disposed on the upper arm fixing frame.

[0012] Preferably, the tooling platform includes a base plate and a bracket mounted on the bottom of the base plate.

[0013] In addition, this utility model also provides a garbage truck hook arm for welding the hook arm as described in any of the above-mentioned claims. The garbage truck hook arm includes a horizontal arm assembly, a vertical arm assembly, and a hook. The horizontal arm assembly includes a lower arm tube, a flat arm tube, a cylinder head rotating sleeve, a locking shaft, and a hook arm rotating sleeve. The lower arm tube is connected to the flat arm tube, and the cylinder head rotating sleeve, the locking shaft, and the hook arm rotating sleeve are respectively inserted into the flat arm tube. The vertical arm assembly includes an upper arm tube and a vertical arm reinforcing rib. One end of the upper arm tube is connected to the lower arm tube, and the other end of the upper arm tube is connected to the hook. The vertical arm reinforcing rib is sleeved on the upper arm tube.

[0014] Preferably, a hook arm reinforcement is also provided at the connection position between the flat arm tube and the upper arm tube.

[0015] This utility model provides a hook arm welding fixture and a garbage truck hook arm. It precisely positions various bushings to be welded using a rotating shaft positioning group and a pin shaft positioning group. A first clamping mechanism, a positioning block, and a second clamping mechanism precisely position and clamp the cross arm assembly components to be welded. A longitudinal arm assembly sub-fixture precisely positions and clamps the longitudinal arm assembly components to be welded, effectively preventing deformation of the parts to be welded during the welding process and enabling rapid welding of dimensionally correct parts. The garbage truck hook arm assembled and welded using this hook arm welding fixture is of high quality, ensuring the reliability of hook-lift garbage truck operations. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the hook arm welding fixture in one embodiment of the present invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the hook arm welding fixture in one embodiment of the present invention. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the fixing mechanism of the hook arm welding fixture in one embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the hook fixing component of the hook arm welding fixture in one embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of the garbage truck hook arm in another embodiment of the present invention.

[0022] The serial numbers in the diagram are explained as follows:

[0023] 1. Tooling platform; 101. Base plate; 102. Bracket; 2. Rotary shaft positioning assembly; 201. First coaxial fixture; 202. Hook arm rotating shaft; 3. First clamping mechanism; 4. Pin positioning assembly; 401. Second coaxial fixture; 402. Cylinder head pin; 5. Positioning block; 6. Second clamping mechanism; 7. Clamping block assembly; 701. Support frame; 702. Connecting pad; 703. Clamping component; 7031. Connecting seat; 7032. Handle; 7033. Clamping lever; 7034. Connecting rod; 8. Intermediate pressure beam; 9. Longitudinal arm assembly tooling; 901 902. Upper arm fixing bracket; 903. Longitudinal arm clamping mechanism; 904. Hook fixing component; 905. Upper arm fixing component; 10. Support block; 11. Lower arm tube; 12. Flat arm tube; 1206. Flat arm clamp plate; 1207. Flat arm rear reinforcing plate; 13. Cylinder head rotating sleeve; 14. Lock shaft; 15. Hook arm rotating sleeve; 16. Upper arm tube; 17. Vertical arm reinforcing rib; 1708. Vertical arm rib wrapping; 1709. Vertical arm side rib; 17000. Mirror vertical arm rib wrapping; 18. Hook; 19. Hook arm reinforcing component; 20. Hook pad; 21. Spare tire bracket; 22. Bolt. Detailed Implementation

[0024] To better understand the above technical solutions, exemplary embodiments of this disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art.

[0025] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0026] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the coordinate system shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the mechanism or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] This utility model provides a hook arm welding fixture, for reference. Figure 1 and Figure 2 In one embodiment, the hook arm welding fixture includes a fixture platform 1, and a rotating shaft positioning group 2, a first pressing mechanism 3, a pin shaft positioning group 4, a positioning block 5, a second pressing mechanism 6, and a longitudinal arm assembly fixture 9, which are respectively installed on the fixture platform 1.

[0030] Understandably, the hook arm welding fixture of this embodiment includes a fixture platform 1, and a rotating shaft positioning group 2, a first clamping mechanism 3, a pin shaft positioning group 4, a positioning block 5, a second clamping mechanism 6, and a longitudinal arm assembly component fixture 9 arranged sequentially along the length direction of the fixture platform 1. The rotating shaft positioning group 2 is used to position the hook arm rotating sleeve of the workpiece to be welded, the first clamping mechanism 3 is used to position and clamp the rear end of the transverse arm assembly of the workpiece to be welded, the pin shaft positioning group 4 is used to position the cylinder head rotating sleeve of the workpiece to be welded, the positioning block 5 is used to position the middle part of the transverse arm assembly of the workpiece to be welded, the second clamping mechanism 6 is used to position and clamp the rear end of the transverse arm assembly of the workpiece to be welded, and the longitudinal arm assembly component fixture 9 is used to fix and weld the longitudinal arm assembly of the workpiece to be welded.

[0031] Preferably, the positioning block 5 includes a support pad and multiple sets of limiting plates disposed on the support pad. Each set of limiting plates includes two corresponding limiting plates, and the distance between the two limiting plates matches the width of the middle part of the crossarm assembly. For example, the positioning block 5 in this embodiment may include two sets of limiting plates. By using the positioning block 5, which includes the support pad and the limiting plates, the middle part of the crossarm assembly of the part to be welded can be supported and accurately positioned.

[0032] The hook arm welding fixture of this embodiment uses the rotating shaft positioning group 2 and the pin shaft positioning group 4 to accurately position the various bushings to be welded, the first clamping mechanism 3, the positioning block 5 and the second clamping mechanism 6 to accurately position and clamp the cross arm assembly parts to be welded, and the longitudinal arm assembly parts to be welded use the longitudinal arm assembly fixture 9 to accurately position and clamp. This can prevent the parts to be welded from deforming and can quickly weld parts that meet the dimensions.

[0033] In a preferred embodiment, reference Figure 1 and Figure 2 The hook arm welding fixture also includes a support block 10 installed on the fixture platform 1. The support block 10 is located on the side of the pin positioning group 4 near the first pressing mechanism 3.

[0034] Understandably, the hook arm welding fixture of this embodiment includes a fixture platform 1, and a rotating shaft positioning group 2, a first pressing mechanism 3, a support block 10, a pin positioning group 4, a positioning block 5, a second pressing mechanism 6, and a longitudinal arm assembly fixture 9 arranged sequentially along the length of the fixture platform 1. The support block 10 is located at the bending part of the longitudinal arm of the part to be welded, and can play an auxiliary supporting role for the front end of the longitudinal arm.

[0035] In a preferred embodiment, reference Figure 1 and Figure 2 The pivot positioning group 2 includes a first coaxial clamp 201 and a hook arm pivot 202. The first coaxial clamp 201 is configured to clamp both ends of the hook arm pivot 202.

[0036] More specifically, the pivot positioning assembly 2 in this embodiment includes a first coaxial clamp 201 and a hook arm pivot 202 clamped in the first coaxial clamp 201. Preferably, the first coaxial clamp 201 may include two symmetrically arranged clamping brackets, each of which is provided with a slot. In this case, both ends of the hook arm pivot 202 are positioned in the slots on the two clamping brackets, wherein the distance between the two clamping brackets matches the length of the hook arm rotating sleeve.

[0037] Furthermore, the clamping bracket may include a base plate, a vertical plate, and two stiffening plates. The base plate is provided with positioning holes for mounting screws. The base plate is mounted on the tooling platform by screws. The vertical plate is vertically connected to the base plate, and the middle of the vertical plate is provided with a slot that mates with the hook arm pivot 202. The two stiffening plates are symmetrically arranged on both sides of the vertical plate and are vertically connected to the base plate.

[0038] This embodiment can accurately position the hook arm rotating sleeve of the workpiece to be welded by setting up a rotating shaft positioning group 2 that includes a first coaxial clamp 201 and a hook arm rotating shaft 202.

[0039] In a preferred embodiment, reference Figure 1 and Figure 2 The pin positioning group 4 includes a second coaxial clamp 401 and a cylinder head pin 402. The second coaxial clamp 401 is configured to clamp both ends of the cylinder head pin 402.

[0040] More specifically, the pin positioning group 4 in this embodiment includes a second coaxial clamp 401 and a cylinder head pin 402 clamped in the second coaxial clamp 401. Preferably, the structure of the second coaxial clamp 401 is similar to that of the first coaxial clamp 201, except that the distance between the two clamping brackets in the second coaxial clamp 401 matches the length of the cylinder head sleeve, and the height of the two clamping brackets matches the installation position of the cylinder head sleeve. By setting the pin positioning group 4, which includes the second coaxial clamp 401 and the cylinder head pin 402, this embodiment can improve the welding efficiency of each sleeve by cooperating with the rotating shaft positioning group 2 on the cylinder head sleeve of the workpiece to be welded.

[0041] It is understood that the first coaxial clamp 201 and the second coaxial clamp 401 in this embodiment can also be other structures used to clamp the hook arm pivot 202 or the cylinder head pin 402, such as a positioning block with a slot, a clamping arm, a clamping claw, etc.

[0042] In a preferred embodiment, reference Figure 1 and Figure 2The first pressing mechanism 3 includes two symmetrically arranged pressing block assemblies 7 and an intermediate pressing beam 8; the pressing block assembly 7 includes a support frame 701, a connecting pad 702 and a pressing member 703, the connecting pad 702 is disposed on the support frame 701, the connecting end of the pressing member 703 is fixedly installed on the connecting pad 702, and the pressing end of the pressing member 703 is pressed against one end of the intermediate pressing beam 8.

[0043] More specifically, the first pressing mechanism 3 includes a left pressing block assembly and a right pressing block assembly arranged symmetrically, and a middle pressing beam 8 whose two ends can be pressed by the left pressing block assembly and the right pressing block assembly. The left pressing block assembly and the right pressing block assembly each include a support frame 701, a connecting pad 702 disposed on the support frame 701, and a pressing member 703 fixedly connected to the connecting pad 702.

[0044] Preferably, the support frame 701 consists of multiple lower pads with through holes. The number of lower pads and the shape of the through holes are set according to requirements. For example, the number of lower pads is set to 3, and the shape of the through holes is set to square. It should be noted that the support frame 701 can also be a support frame with a square cross-section, or other structures used to support the clamping member 703.

[0045] The clamping element 703 is configured to clamp or release the intermediate pressure beam 8. The clamping element 703 can be a push-pull quick clamp or a vertical quick clamp. Preferably, see reference... Figure 3 The clamping member 703 includes a connecting seat 7031 mounted on the connecting pad 702 by screws, a pressure handle 7033 with one end hinged to the connecting seat 7031, a handle 7032 with one end hinged to the connecting seat 7031 and used to drive the pressure handle 7033, and a connecting rod 7034 with both ends hinged to the pressure handle 7033 and the handle 7032 respectively.

[0046] More specifically, the connecting seat 7031 is provided with a handle rotation shaft, a pressure rod rotation shaft, an upper connecting rod rotation shaft, and a lower connecting rod rotation shaft. The handle rotation shaft is rotatably connected to the handle 7032, the screw rotation shaft is rotatably connected to the pressure handle 7033, the upper connecting rod rotation shaft is rotatably connected to one end of the connecting rod 7034 and the handle 7032, and the lower connecting rod rotation shaft is rotatably connected to the other end of the connecting rod 7034 and the pressure handle 7033. When the handle 7032 is pushed forward, it drives the pressure handle 7033 to lock the intermediate pressure beam 8. Conversely, when the handle 7032 is pulled backward, it drives the pressure handle 7033 to loosen the intermediate pressure beam 8.

[0047] Furthermore, the intermediate pressure beam 8 is a free part. During the welding process, the intermediate pressure beam 8 is placed above the part to be welded and is pressed by the clamping parts 703 at both ends, thereby pressing the part to be welded to prevent position displacement during the welding process. After the welding is completed, the intermediate pressure beam 8 is released.

[0048] It is understood that the second pressing mechanism 6 in this embodiment has the same structure as the first pressing mechanism 3, and will not be described again here.

[0049] In summary, the hook arm welding fixture of this embodiment can press the front and rear ends of the cross arm assembly through the first pressing mechanism 3 and the second pressing mechanism 6, so as to avoid deformation when welding the components in the cross arm assembly.

[0050] In a preferred embodiment, reference Figure 1 and Figure 2 The longitudinal arm assembly tooling 9 includes an upper arm fixing frame 901 and a plurality of longitudinal arm clamping mechanisms 902 disposed on the upper arm fixing frame 901.

[0051] More specifically, the longitudinal arm assembly tooling 9 includes an upper arm fixing frame 901, on which multiple longitudinal arm clamping mechanisms 902 are provided. The longitudinal arm clamping mechanisms 902 are used to clamp the longitudinal arm assembly of the workpiece to be welded. The longitudinal arm clamping mechanism 902 may include two upper arm pressure block assemblies symmetrically arranged on the upper arm fixing frame 901 and an upper arm pressure beam clamped at both ends by the two pressure block assemblies. The structure of the longitudinal arm clamping mechanism 902 is similar to that of the first clamping mechanism 3. The difference is that the installation direction of the upper arm pressure block assembly in the longitudinal arm clamping mechanism 902 is different from that of the pressure block assembly in the first clamping mechanism 3, and the height of the upper arm pressure block assembly is different from that of the pressure block assembly. Specifically, the upper arm pressure block assembly is vertically arranged on the upper arm fixing frame 901, and the support frame 701 included in the upper arm pressure block assembly is composed of a lower pad block with a through hole.

[0052] Understandably, the number and installation position of the trailing arm clamping mechanism 902 are set according to requirements. For example, when there are two trailing arm clamping mechanisms 902, one is installed near the hook of the part to be welded, and the other is installed at the bottom of the trailing arm assembly of the part to be welded.

[0053] Furthermore, the upper arm fixing bracket 901 may also be provided with multiple upper arm fixing parts 904 and a hook fixing part 903. The multiple upper arm fixing parts 904 correspond to multiple longitudinal arm pressing mechanisms 902 respectively, and the hook fixing part 903 corresponds to the hook position of the part to be welded.

[0054] More specifically, the upper arm fixing component 904 is used to position the longitudinal arm assembly of the part to be welded, and the hook fixing component 903 is used to position the hook of the part to be welded. The upper arm fixing component 904 includes two upper arm fixing plates, a first connecting plate, and an upper arm limiting bracket. The two upper arm fixing plates are mounted on the upper arm fixing bracket 901, the first connecting plate is mounted between the two upper arm fixing plates, and the upper arm limiting bracket is located on the side of the first connecting plate facing the longitudinal arm pressing mechanism 902. The upper arm limiting bracket is provided with an upper arm positioning groove, the width of which matches the width of the upper arm assembly.

[0055] refer to Figure 4 The hook fixing component 903 includes two hook fixing plates 9031, a second connecting plate 9032, and a hook limiting bracket 9033. The two hook fixing plates 9031 are installed on the upper arm fixing bracket 901, the second connecting plate 9032 is installed between the two hook fixing plates 9031, and the hook limiting bracket 9033 is located on the side of the second connecting plate 9032 facing the longitudinal arm pressing mechanism 902. The hook limiting bracket 9033 is provided with a hook positioning groove, the width of which matches the thickness of the hook.

[0056] Furthermore, the upper arm fixing frame 901 may include a left column, a right column corresponding to the left column, an upper connecting column, a lower connecting column, and a support column. The left column and the right column are vertically arranged on the tooling platform 1. The two ends of the upper connecting column are connected to the top of the left column and the right column, respectively. The two ends of the lower connecting column are connected to the bottom of the left column and the right column, respectively. The support column is inclined between the column (left column and / or right column) and the tooling platform 1 to support and strengthen the column.

[0057] In summary, the hook arm welding fixture of this embodiment can fix and press the longitudinal arm assembly and hook of the workpiece to be welded through the upper arm fixing bracket 901 and the longitudinal arm clamping mechanism 902, so as to avoid deformation of the longitudinal arm assembly during the welding process and thus improve the welding quality.

[0058] In a preferred embodiment, the tooling platform 1 includes a base plate 101 and a bracket 102 mounted on the bottom of the base plate 101.

[0059] More specifically, the tooling platform 1 includes a bracket 102 and a base plate 101 mounted on the bracket 102. In this case, the rotating shaft positioning assembly 2, the first clamping mechanism 3, the support block 10, the pin positioning assembly 4, the positioning block 5, the second clamping mechanism 6, and the longitudinal arm assembly tooling 9 are all mounted on the base plate 101. Preferably, the bracket 102 may include a mounting frame for mounting the base plate 101, with a support leg connected to each of the four corners of the mounting frame.

[0060] Understandably, the hook arm welding fixture of this embodiment, by setting a fixture platform 1 including a base plate 101 and a bracket 102, can provide a stable and reliable assembly and welding platform for the parts to be welded.

[0061] In addition, this utility model also provides a garbage truck hook arm, for use with the hook arm welding fixture described in any of the above embodiments, see reference. Figure 5 In another embodiment, the garbage truck hook arm includes a horizontal arm assembly, a vertical arm assembly, and a hook 18; the horizontal arm assembly includes a lower arm tube 11, a flat arm tube 12, a cylinder head rotating sleeve 13, a locking shaft 14, and a hook arm rotating sleeve 15, the lower arm tube 11 being connected to the flat arm tube 12, and the cylinder head rotating sleeve 13, the locking shaft 14, and the hook arm rotating sleeve 15 being respectively inserted into the flat arm tube 12; the vertical arm assembly includes an upper arm tube 16 and a vertical arm reinforcing rib 17, one end of the upper arm tube 16 being connected to the lower arm tube 11, the other end of the upper arm tube 16 being connected to the hook 18, and the vertical arm reinforcing rib 17 being sleeved on the upper arm tube 16.

[0062] More specifically, the garbage truck hook arm of this embodiment is welded using the hook arm welding fixture of any of the above embodiments. The garbage truck hook arm includes a horizontal arm assembly, a vertical arm assembly, and a hook 18. The bottom of the vertical arm assembly is connected to the horizontal arm assembly, and the top of the vertical arm assembly is connected to the hook 18. The vertical arm assembly includes an upper arm tube 16. A vertical arm reinforcing rib 17 is sleeved on the outside of the upper arm tube 16. The vertical arm reinforcing rib 17 can be composed of a vertical arm wrapping rib 1701, a vertical arm side rib 1702, and a mirror vertical arm wrapping rib 1703. A hook pad 20 for installing the hook 18 can also be provided on the top of the upper arm tube 16. The trailing arm assembly includes a lower arm tube 11 connected to the upper arm tube 16, and a flat arm tube 12 connected to the lower arm tube 11. A cylinder head rotating sleeve 13, a locking shaft 14, and a hook arm rotating sleeve 15 are respectively installed in the flat arm tube 12. The flat arm tube 12 can be composed of a flat arm rear reinforcing plate 1202 and a flat arm clamping plate 1201. At this time, a first clamping mechanism 3 is correspondingly located at the rear end of the flat arm tube 12, a second clamping mechanism 6 is correspondingly located at the front end of the lower arm tube 11, and a positioning block 5 is correspondingly located near the connection point between the flat arm clamping plate 1201 and the lower arm tube 11.

[0063] Furthermore, the garbage truck hook arm may also include a spare tire bracket 21, which is fixedly mounted on the boom reinforcing rib 17 by bolts 22.

[0064] Furthermore, a hook arm reinforcement 19 is provided at the connection position between the flat arm tube 12 and the upper arm tube 16.

[0065] In summary, the garbage truck hook arm of this embodiment is welded using the hook arm welding fixture of any of the above embodiments, resulting in a high-quality hook arm. Furthermore, the hook arm welding fixture of this embodiment, by incorporating the vertical arm reinforcing rib 17, can improve the structural strength of the hook arm, preventing deformation and breakage of the upper arm under long-term frequent use, thus extending the service life of the hook arm. Additionally, by incorporating the hook arm reinforcing member 19, the structural strength at the connection between the upper and lower arms can be improved, thereby enhancing the operational stability of the hook arm.

[0066] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, 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 hook arm welding fixture, characterized by, The tooling platform (1) is provided with a rotating shaft positioning group (2), a first pressing mechanism (3), a pin shaft positioning group (4), a positioning block (5), a second pressing mechanism (6) and a longitudinal arm assembly tooling (9) respectively.

2. The hook arm welding fixture of claim 1, wherein, The hook arm welding tooling further comprises a support block (10) mounted on the tooling platform (1), and the support block (10) is arranged on the side of the pin shaft positioning group (4) close to the first pressing mechanism (3).

3. The hook arm welding fixture of claim 1, wherein, The rotating shaft positioning group (2) comprises a first coaxial clamp (201) and a hook arm rotating shaft (202), and the first coaxial clamp (201) is arranged to clamp both ends of the hook arm rotating shaft (202).

4. The hook arm welding fixture of claim 3, wherein, The pin shaft positioning group (4) comprises a second coaxial clamp (401) and a cylinder head pin shaft (402), and the second coaxial clamp (401) is arranged to clamp both ends of the cylinder head pin shaft (402).

5. The hook arm welding fixture of claim 4, wherein, The first pressing mechanism (3) comprises two pressing block assemblies (7) and an intermediate pressing beam (8) arranged symmetrically; the pressing block assembly (7) comprises a support frame (701), a connecting pad block (702) and a pressing member (703), the connecting pad block (702) is arranged on the support frame (701), the connecting end of the pressing member (703) is fixedly installed on the connecting pad block (702), and the pressing end of the pressing member (703) is in pressure connection with one end of the intermediate pressing beam (8).

6. The hook arm welding fixture of claim 5, wherein, The pressing member (703) comprises a connecting seat (7031) mounted on the connecting pad block (702) through a screw, a pressing handle (7033) hinged at one end of the connecting seat (7031), a handle (7032) hinged at one end of the connecting seat (7031) and used to drive the pressing handle (7033), and a connecting rod (7034) hinged at both ends of the pressing handle (7033) and the handle (7032) respectively.

7. The hook arm welding fixture of claim 1, wherein, The longitudinal arm assembly tooling (9) comprises an upper arm fixing frame (901) and a plurality of longitudinal arm pressing mechanisms (902) arranged on the upper arm fixing frame (901).

8. The hook arm welding fixture of claim 1, wherein, The tooling platform (1) comprises a bottom plate (101) and a support (102) mounted on the bottom of the bottom plate (101).

9. A hook arm for a garbage truck as claimed in any one of claims 1 to 8, characterised in that, The garbage truck hook arm comprises a horizontal arm assembly, a longitudinal arm assembly and a hook (18); the horizontal arm assembly comprises a lower arm pipe (11), a horizontal arm pipe (12), a cylinder head rotating sleeve (13), a lock shaft (14) and a hook arm rotating sleeve (15), the lower arm pipe (11) is connected with the horizontal arm pipe (12), and the cylinder head rotating sleeve (13), the lock shaft (14) and the hook arm rotating sleeve (15) are respectively arranged in the horizontal arm pipe (12); the longitudinal arm assembly comprises an upper arm pipe (16) and a vertical arm reinforcing rib (17), one end of the upper arm pipe (16) is connected with the lower arm pipe (11), the other end of the upper arm pipe (16) is connected with the hook (18), and the vertical arm reinforcing rib (17) is sleeved on the upper arm pipe (16).

10. The hook arm of claim 9, wherein, The connecting position of the horizontal arm pipe (12) and the upper arm pipe (16) is further provided with a hook arm reinforcing member (19).

Images