A cutter head rear suspension shaft assembly welding positioning fixture

Abstract

The utility model discloses a kind of tool holder rear hanger shaft assembly welding positioning fixture, belong to positioning fixture technical field, including bottom plate, first locating seat fixedly connected at the top of the bottom plate, for the lap joint positioning placement between first hanger arm, reinforcing plate and hanger shaft, fixed block is fixedly connected at the top side of the bottom plate, and close to first locating seat, the inside positioning of the fixed block is equipped with locating post, for the positioning of lifting arm lug, second locating seat fixedly connected at the top of the bottom plate, and the side away from fixed block;The utility model can pre-position all components in assembly by setting special positioning fixture, after positioning, only need to weld the connecting position of each component, without substantial positioning adjustment, not only reduce workload, improve welding efficiency, and through the positioning of special fixture, the welding position of each component can be accurately positioned, effectively improve welding accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of positioning fixture technology, and in particular relates to a welding positioning fixture for a tool disc rear hanger assembly. Background Technology

[0002] As attached Figure 1 As shown, the existing cutter head rear lifting shaft assembly includes a support lug 100, a first lifting arm 200, a reinforcing plate 300, a retaining ring 400, a lifting shaft 500, a rear lifting auxiliary arm 600, and a second lifting arm 700. During processing, each individual component needs to be machined separately. After all components are machined, they need to be welded together to form a complete assembly for subsequent installation and use. Welding also improves the strength of the assembly.

[0003] Traditional welding methods use a lifting shaft as the welding base. First, the lifting shaft is fixed, then the first lifting arm, two retaining rings, and the rear lifting auxiliary arm are welded to it sequentially. Finally, the support lugs and reinforcing plates are welded to the first lifting arm. This traditional welding method requires adjustments during the welding process for different components, which is not only cumbersome and inefficient, but also requires different positioning mechanisms to position each component at different stages, making operation very inconvenient. Therefore, we propose a welding positioning fixture for the cutter head rear lifting shaft assembly to solve the aforementioned problems. Utility Model Content

[0004] In view of this, in order to solve the problem that traditional welding methods require corresponding adjustments during the welding process according to different components, which is not only cumbersome and inefficient, but also requires different positioning mechanisms to complete the positioning of each component at different stages, resulting in great inconvenience in operation, this utility model provides a welding positioning fixture for the rear hanger shaft assembly of the cutter head.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a welding positioning fixture for a cutter head rear hanger shaft assembly, including a base plate;

[0006] It also includes a first positioning seat, which is fixedly connected to the top of the base plate and is used for overlapping positioning between the first boom, the reinforcing plate and the lifting shaft;

[0007] It also includes a fixing block, which is fixedly connected to the top side of the base plate and close to the first positioning seat. The fixing block has a positioning post inside for positioning the support lug.

[0008] It also includes a second positioning seat, which is fixedly connected to the top of the base plate and to the side away from the fixing block, for overlapping positioning between the second boom, the rear-adjustable auxiliary boom and the boom shaft.

[0009] Furthermore, a first arc-shaped groove is provided on one side of the top edge of the first positioning seat, and a second latch is provided on one side of the inner wall of the first arc-shaped groove. A positioning groove is provided on the side edge of the top of the first positioning seat near the fixing block, and a first latch is provided on the side edge of the top of the first positioning seat near the positioning groove for positioning the first boom. A first pin hole communicating with the first latch is provided on the side of the first positioning seat near the fixing block, and a first pin is inserted into the first pin hole.

[0010] Furthermore, the positioning post is a cylindrical rod with a square cross-section, and a pin hole four is opened on the outer wall of the positioning post near the first positioning seat, and a pin shaft four is inserted into the pin hole four.

[0011] Furthermore, a rubber sleeve is fixedly installed inside the through hole of the fixing block, and the positioning post passes through the rubber sleeve.

[0012] Furthermore, a second arc-shaped groove is provided on one side of the top edge of the second positioning seat, and a five-slot is provided on one side of the inner wall of the second arc-shaped groove. A three-slot is provided on the top side of the second positioning seat away from the first positioning seat for positioning the second boom. A pin hole two communicating with the three-slot is provided on the side of the second positioning seat near the first positioning seat, and a pin shaft two is inserted into the pin hole two. A four-slot is provided on the top side of the second positioning seat near the first positioning seat for positioning the rear auxiliary boom. A pin hole three communicating with the four-slot is provided on the side of the second positioning seat near the first positioning seat, and a pin shaft three is inserted into the pin hole three.

[0013] Furthermore, rubber rings are fixedly installed inside pin hole one, pin hole two, and pin hole three.

[0014] The embodiments of this utility model have the following beneficial effects:

[0015] This invention utilizes a dedicated positioning fixture to pre-position all components in an assembly. After positioning, only the connection points of each component need to be welded, eliminating the need for significant positioning adjustments. This not only reduces workload and improves welding efficiency but also ensures precise positioning of the welding positions of each component through the dedicated fixture, effectively enhancing welding accuracy. The use of this fixture simplifies the entire positioning process, and the positioning effect effectively guarantees welding stability.

[0016] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0018] Figure 1 This is a schematic diagram of the existing cutter head rear hanger assembly;

[0019] Figure 2 This is a schematic diagram of the overall structure of a welding positioning fixture for a cutter head rear hanger assembly according to the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the first positioning seat;

[0021] Figure 4 This is a schematic diagram of the connection structure between the fixing block and the positioning post;

[0022] Figure 5 This is a schematic diagram of the structure of the second positioning seat;

[0023] Figure 6 A first-view structural diagram of the tool head rear hanger assembly positioned on the fixture;

[0024] Figure 7 This is a second-view structural diagram showing the positioning of the tool head rear hanger assembly on the fixture.

[0025] In the diagram: 1. Base plate; 2. First positioning seat; 21. First arc-shaped groove; 22. Positioning groove; 23. First bayonet; 24. Second bayonet; 25. First pin hole; 3. Fixing block; 4. Second positioning seat; 41. Second arc-shaped groove; 42. Third bayonet; 43. Fourth bayonet; 44. Fifth bayonet; 45. Second pin hole; 46. Third pin hole; 5. Positioning post; 51. Fourth pin hole; 6. First pin; 7. Second pin; 8. Third pin; 9. Fourth pin; 10. Rubber sleeve. Detailed Implementation

[0026] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0027] Please see Figures 2-7As shown, this embodiment provides a welding positioning fixture for a cutter head rear hanger assembly, including a base plate 1, a first positioning seat 2, a fixing block 3, and a second positioning seat 4. The first positioning seat 2, fixing block 3, and second positioning seat 4 are all fixedly connected to the top of the base plate 1, with the first positioning seat 2 located between the fixing block 3 and the second positioning seat 4. The first positioning seat 2 is used for overlapping positioning between the first boom 200, the reinforcing plate 300, and the hanger shaft 500. The fixing block 3 is used for positioning the support lug 100. The second positioning seat 4 is used for overlapping positioning between the second boom 700, the rear adjustable auxiliary boom 600, and the hanger shaft 500.

[0028] This invention can be used in the field of welding positioning fixtures for the rear hanger shaft assembly of the cutter head, and can also be applied to other fields of this invention.

[0029] The first positioning seat 2 has a first arc-shaped groove 21 on one side of its top edge for supporting the lifting shaft 500. A second latch 24 is provided on one side of the inner wall of the first arc-shaped groove 21 for positioning the retaining ring 400. A positioning groove 22 is provided on the top edge of the first positioning seat 2 near the fixing block 3 for supporting the reinforcing plate 300. A latch 23 is provided on the top edge of the first positioning seat 2 near the positioning groove 22 for positioning the first boom 200. A pin hole 25 communicating with the latch 23 is provided on the side of the first positioning seat 2 near the fixing block 3. A pin 6 is inserted into the pin hole 25, and the pin 6, in conjunction with the through hole on the first boom 200, completes the positioning connection of the first boom 200 on the first positioning seat 2.

[0030] The fixing block 3 is fixedly connected to the top of the base plate 1 near the first positioning seat 2. A positioning post 5 is inserted through the interior of the fixing block 3. The positioning post 5 is a square-section cylindrical rod. A pin hole 51 is formed on the outer wall of the positioning post 5 near the first positioning seat 2, and a pin 9 is inserted into the pin hole 51. When positioning the lug 100, the lug 100 is directly fitted onto one end of the positioning post 5, and the pin 9 passes through both the through hole and the pin hole 51 on the lug 100, thus completing the connection and positioning of the lug 100 on the positioning post 5. After welding, the pin 9 is removed, and then the positioning post 5 is removed, making it easy to remove the entire assembly. A rubber sleeve 10 is fixedly installed inside the through hole of the fixing block 3, and the positioning post 5 passes through the rubber sleeve 10. By setting the rubber sleeve 10, the stability of the positioning post 5 insertion is improved, facilitating the positioning connection of the lug 100.

[0031] The second positioning seat 4 is fixedly connected to the top of the base plate 1 on the side away from the fixing block 3. A second arc-shaped groove 41 is provided on one edge of the top of the second positioning seat 4 for supporting the overlapping of the lifting shaft 500. A five-way slot 44 is provided on one side of the inner wall of the second arc-shaped groove 41 for positioning and locking the other retaining ring 400. A three-way slot 42 is provided on the top of the second positioning seat 4 away from the first positioning seat 2 for positioning and locking the second boom 700. A pin hole 45 communicating with the three-way slot 42 is provided on the side of the second positioning seat 4 closest to the first positioning seat 2. A pin 7 is inserted into the pin hole 45, and the pin 7, in conjunction with the through hole on the second boom 700, completes the positioning connection of the second boom 700 on the second positioning seat 4. The top of the second positioning seat 4 is provided with a slot 43 on the side near the first positioning seat 2 for positioning the rear auxiliary arm 600. The second positioning seat 4 is provided with a pin hole 46 on the side near the first positioning seat 2 that communicates with the slot 43. A pin 8 is inserted into the pin hole 46. After the pin 8 is engaged with the through hole on the rear auxiliary arm 600, the positioning connection of the auxiliary arm 600 on the second positioning seat 4 is completed.

[0032] When positioning the entire cutter head rear lifting shaft assembly, first, place both retaining rings 400 and the rear lifting auxiliary arm 600 onto the lifting shaft 500. Then, engage the two retaining rings 400 with the corresponding slots 24 on the first positioning seat 2 and 44 on the second positioning seat 4, respectively. Simultaneously, position the rear lifting auxiliary arm 600 into slot 43, and then use the inserted pin 3 8 to position and connect the rear lifting auxiliary arm 600. Next, place the first lifting arm 200 and the second lifting arm 700 onto both ends of the lifting shaft 500, respectively. Adjust them by rotation and movement to engage with the corresponding slots 23 and 42, respectively. Then, use the inserted pin 1 6 to position and connect the first lifting arm 200 to the first positioning seat 2, and use the inserted pin 2 7 to position and connect the second lifting arm 700 to the second positioning seat 4. Next, the lug 100 is fitted onto one end of the positioning post 5, and the lug 100 is positioned and connected to the positioning post 5 by inserting the pin 4 9. Then, the positioning post 5 is adjusted so that the lug 100 abuts against the first boom 200. Finally, the reinforcing plate 300 is placed in the positioning groove 22 so that it also abuts against the side of the first boom 200 away from the lug 100. After that, each component is welded together one by one.

[0033] In one aspect of this embodiment, rubber rings are fixedly provided in pin holes 25, 45, and 46. The rubber rings increase the insertion stability of pins 6, 7, and 8, thereby improving welding stability and ensuring welding quality. Furthermore, pins 6, 7, 8, and 9 are all T-shaped rods, facilitating better positioning operations.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A welding positioning fixture for a cutter head rear hanger assembly, characterized in that, include: Base plate (1); The first positioning seat (2) is fixedly connected to the top of the base plate (1) and is used for overlapping positioning between the first boom (200), the reinforcing plate (300) and the lifting shaft (500); A fixing block (3) is fixedly connected to the top side of the base plate (1) and close to the first positioning seat (2). The fixing block (3) is internally positioned with a positioning post (5) for positioning the support lug (100). The second positioning seat (4) is fixedly connected to the top of the base plate (1) and to the side away from the fixing block (3), and is used for overlapping positioning between the second boom (700), the rear adjustment sub-boom (600) and the lifting shaft (500).

2. The welding positioning fixture for the cutter head rear hanger assembly as described in claim 1, characterized in that, The first positioning seat (2) has a first arc-shaped groove (21) on one side of its top edge, and a second slot (24) is provided on one side of the inner wall of the first arc-shaped groove (21). The first positioning seat (2) has a positioning groove (22) on one side of its top edge near the fixing block (3). The first positioning seat (2) has a first slot (23) on one side of its top edge near the positioning groove (22) for positioning the first boom (200). The first positioning seat (2) has a first pin hole (25) on one side near the fixing block (3) that communicates with the first slot (23). A first pin shaft (6) is inserted into the first pin hole (25).

3. The welding positioning fixture for the rear lifting shaft assembly of the cutter head as described in claim 2, characterized in that, The positioning post (5) is a cylindrical rod with a square cross section. The outer wall of the positioning post (5) is provided with a pin hole four (51) on the side close to the first positioning seat (2). A pin shaft four (9) is inserted into the pin hole four (51).

4. The welding positioning fixture for the cutter head rear hanger assembly as described in claim 3, characterized in that, A rubber sleeve (10) is fixedly installed in the through hole of the fixing block (3), and the positioning post (5) passes through the rubber sleeve (10).

5. A welding positioning fixture for a cutter head rear hanger assembly as described in claim 2 or 4, characterized in that, The second positioning seat (4) has a second arc-shaped groove (41) on one side of its top edge. The second arc-shaped groove (41) has a five-way slot (44) on one side of its inner wall. The second positioning seat (4) has a three-way slot (42) on the top side away from the first positioning seat (2) for positioning the second boom (700). The second positioning seat (4) has a pin hole (45) on the side near the first positioning seat (2) that communicates with the three-way slot (42). A pin shaft (7) is inserted into the pin hole (45). The second positioning seat (4) has a four-way slot (43) on the top side near the first positioning seat (2) for positioning the rear auxiliary boom (600). The second positioning seat (4) has a pin hole (46) on the side near the first positioning seat (2) that communicates with the four-way slot (43). A pin shaft (8) is inserted into the pin hole (46).

6. The welding positioning fixture for the cutter head rear hanger assembly as described in claim 5, characterized in that, Rubber rings are fixedly installed in the first pin hole (25), the second pin hole (45), and the third pin hole (46).

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