Tower crane lower support machining tool

Abstract

The utility model discloses a tower crane lower support machining tool, and particularly relates to the technical field of crane machining, the tower crane lower support machining tool mainly comprises a tool plate and a positioning plate, the positioning plate is located above the tool plate, and a positioning assembly is arranged on one side of the positioning plate; wherein the positioning assembly comprises an extrusion plate mounted on one side of the positioning plate, and connecting blocks are fixedly connected to the opposite sides of the positioning plate and the extrusion plate. The positioning assembly is adopted, and the sleeving sliding block carries the connecting block to move. The connecting block drives the extrusion plate to move, the positioning plate and the extrusion plate can be extruded on the two sides of the lower lifting support correspondingly, the positioning block is extruded on the corner position of the lower lifting support, and firm positioning operation is achieved on the bottom corner point and the edge corner point of the lower lifting support. The lower support of the tower crane is prevented from shaking in the machining process, and the machining precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crane processing, and more specifically, to a machining tool for a lower support of a tower crane. Background Art

[0002] As an indispensable component of tower cranes, the lower support has high requirements on strength and installation accuracy of various structural parts. Traditionally, the mounting holes of the rack of the lower support are machined before the sub-assemblies of the parts are assembled. This will be affected by multiple factors such as positioning accuracy during assembly and welding deformation, resulting in deviations in the accuracy and size of the installation holes, making product assembly difficult, and affecting the product's performance and safety performance. Therefore, machining tooling for the lower support of tower cranes is required.

[0003] In the existing public documents, the patent publication number CN115846986A discloses a universal welding fixture for the inner sleeve of a tower crane. The universal welding fixture for the inner sleeve of a tower crane can meet the welding positioning of the inner sleeve with a cross section of 1.8 meters and 1.5 meters, achieve the purpose of universality, and is easy to install and simple to operate. It can quickly realize and ensure the positioning work of the key docking dimensions of the inner sleeve of the tower crane, ensure product quality, and improve work efficiency; however, the fixture has the following defects:

[0004] When the tooling is machining and clamping the lower support of the tower crane, due to the presence of multiple corner points on the lower support of the tower crane, it is difficult to fit onto the outer wall of the lower support of the tower crane during the assembly process. As a result, the lower support of the tower crane is very likely to generate a deflection force during the machining process, causing the lower support of the tower crane to shake, affecting the machining accuracy. For this purpose, a tooling for machining the lower support of the tower crane is provided. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a machining tool for the lower support of a tower crane.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tower crane lower support machining tool, including a tooling plate and a positioning plate, the positioning plate is located above the tooling plate, and a positioning assembly is provided on one side of the positioning plate; the positioning assembly includes an extrusion plate installed on one side of the positioning plate, and the opposite sides of the positioning plate and the extrusion plate are fixedly connected with connecting blocks, and one side of each of the connecting blocks is fixedly connected with a sleeve slider; a push rod is welded on one side of each of the sleeve sliders, and an electric cylinder is fixedly installed on one side of the push rod, a slide rod is slidably connected to the inner wall of the sleeve slider, and the slide rod is welded to the tooling plate.

[0007] Preferably, a gap is provided between the positioning plate and the extrusion plate, and the positioning plate and the extrusion plate are both slidably connected to the top of the tooling plate, the two electric cylinders are fixedly connected to the tooling plate, the top of the connecting block and the top of the sleeve slider are in the same horizontal plane, the inner wall of the tooling plate is provided with two sliding grooves, the sleeve slider is slidably connected to the tooling plate to which the sliding grooves belong; the outer wall of the sleeve slider is set as a smooth surface, the tops of the positioning plate and the extrusion plate are fixedly connected with positioning blocks, a slidingly connected lifting lower support is provided between the two positioning blocks, a switch is fixedly connected to the top of the tooling plate and near one of its corner lines; the top surface area of ​​the tooling plate is smaller than the bottom surface area.

[0008] According to the above technical solution, when in use, the lower support of the crane is installed on the top of the tooling plate, and the two electric cylinders are started by the switch. The push rod drives the sleeve slider to push, and the sleeve slider carries the connecting block to move. The sleeve slider slides along the inner wall of the slide groove. The positioning plate and the extrusion plate can be respectively squeezed on the two sides of the lower support of the crane. The positioning plate and the extrusion plate carry two positioning blocks for extrusion respectively. The positioning blocks are squeezed at the corners of the lower support of the crane, which can not only reinforce the outer wall of the bottom of the lower support of the crane at multiple points, but also reinforce the corners of the lower support of the crane, and it is not easy to cause the lower support of the crane to shake.

[0009] Preferably, the inner wall of the lower lifting support is slidably connected with a guide plate, and a guide support assembly is installed at the bottom end of the guide plate; the guide support assembly includes a positioning column fixedly installed at the bottom end of the guide plate, and a pillar is welded to the bottom end of the positioning column, and a connecting chassis is fixedly connected between the pillar and the tooling plate; a support ring is welded to the outer wall of the connecting chassis, and a support column is fixedly installed at the top of the support ring, and a support block is welded to the top of the support column, and the support block is used to support the lower lifting support; a guide surface is provided on the outer wall of the guide plate.

[0010] According to the above technical solution, when in use, the lower lifting support is guided to the guide plate and connected to the chassis support pillar. The positioning column guides the lower lifting support, the support ring supports the connected chassis, the support ring can continue to support the support column, the support column supports the support block, and the support block firmly supports the bottom end of the lower lifting support.

[0011] Technical effects and advantages of the utility model:

[0012] 1. The utility model adopts a positioning component, which is driven by an electric cylinder to drive a push rod, which drives a sleeve slide to drive, and the sleeve slide carries a connecting block to move. The connecting block drives the extrusion plate to move, and the positioning plate and the extrusion plate can be respectively squeezed at the two sides of the lower support of the crane, and the positioning block is squeezed at the corner position of the lower support of the crane, so as to realize a firm positioning operation on the bottom corner point and the edge corner point of the lower support of the crane, and the lower support of the tower crane is prevented from shaking during the machining process, thereby improving the machining accuracy;

[0013] 2. The utility model adopts a guide support assembly, which guides the guide plate to enter through the lower support of the crane, and the guide surface of the outer wall of the guide plate guides the positioning column. The support column supports the positioning column. The positioning column guides the lower support of the crane, and the support block firmly supports the bottom end of the lower support of the crane, thereby increasing the stability of the lower support of the crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the overall structure of the tower crane lower support machining tooling.

[0015] Figure 2 It is a schematic diagram of the partial structure of the connection between the tooling plate and the electric cylinder of the utility model.

[0016] Figure 3 The utility model is a schematic diagram of the structure of the tower crane lower support machining tooling when viewed from above.

[0017] Figure 4 The utility model is a schematic diagram of the top plan structure of the tower crane lower support machining tooling.

[0018] Figure 5 The utility model is a schematic diagram of the vertical cross-section structure of the tower crane lower support machining tooling.

[0019] Figure 6 It is a schematic diagram of the local structure of the vertical section of the connection between the tooling plate and the connecting chassis of the utility model.

[0020] The accompanying drawings are marked as follows: 1. tooling plate; 2. positioning plate; 3. extrusion plate; 4. connecting block; 5. sleeve slider; 6. push rod; 7. electric cylinder; 8. slide rod; 9. slide groove; 10. positioning block; 11. lower lifting support; 12. switch; 13. guide plate; 14. positioning column; 15. pillar; 16. connecting chassis; 17. support ring; 18. support column; 19. support block; 20. guide surface. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] As attached Figure 1-6 A tower crane lower support machining tool is shown, and a positioning assembly is arranged on the tower crane lower support machining tool. The positioning assembly can make the positioning block 10 squeeze at the corner position of the lifting lower support 11, and realize the firm positioning operation of the bottom corner point and the edge corner point of the lifting lower support 11. The tower crane lower support avoids shaking during the machining process, and improves the machining accuracy. The specific structure of the positioning assembly is arranged as follows:

[0023] In this technical solution, as shown in the attached Figure 1-2 As shown, the positioning assembly includes an extrusion plate 3 installed on one side of the positioning plate 2, and the opposite sides of the positioning plate 2 and the extrusion plate 3 are fixedly connected with a connection block 4, and one side of each connection block 4 is fixedly connected with a sleeve slider 5;

[0024] A push rod 6 is welded to one side of each sleeve slider 5, an electric cylinder 7 is fixedly installed to one side of the push rod 6, a slide rod 8 is slidably connected to the inner wall of the sleeve slider 5, and the slide rod 8 is welded to the tooling plate 1;

[0025] When the present embodiment is in use, the lower lifting support 11 is installed on the top of the tooling plate 1, and the two electric cylinders 7 are started by the switch 12, and the electric cylinder 7 drives the push rod 6 to push, and the push rod 6 drives the sleeve slide 5 to push, and the sleeve slide 5 carries the connecting block 4 to move. The connecting block 4 drives the extrusion plate 3 to move, and at the same time, the sleeve slide 5 slides along the outer wall of the slide rod 8, and the sleeve slide 5 slides along the inner wall of the slide groove 9.

[0026] The positioning plate 2 and the extrusion plate 3 can be respectively squeezed on both sides of the lower lifting support 11, and the positioning plate 2 and the extrusion plate 3 are firmly supported on the outer wall of the lower lifting support 11, and the positioning plate 2 and the extrusion plate 3 respectively carry two positioning blocks 10 for squeezing, and the positioning blocks 10 are squeezed at the corner positions of the lower lifting support 11, which can not only reinforce the multiple points of the bottom outer wall of the lower lifting support 11, but also reinforce the corner points of the lower lifting support 11. In this way, the lower lifting support 11 can be positioned to the specified position, and the bottom corner points and edge corner points of the lower lifting support 11 can be firmly positioned. The lower lifting support 11 is positioned for processing, which is less likely to cause the lower lifting support 11 to shake.

[0027] In this technical solution, as shown in the attached Figure 1-3As shown, the inner wall of the tooling plate 1 is provided with two slide grooves 9, and the sleeve slider 5 is slidably connected with the tooling plate 1 to which the slide grooves 9 belong; the outer wall of the sleeve slider 5 is set as a smooth surface. The surface of the tooling plate 1 is provided with a groove, and the inner wall of the groove is provided with a slide groove 9, so that the sleeve slider 5 can slide along the inner wall of the slide groove 9, which is convenient for the sleeve slider 5 to achieve stable sliding and guide the sleeve slider 5. The top of the positioning plate 2 and the extrusion plate 3 are fixedly connected with a positioning block 10, and a slidingly connected lifting lower support 11 is provided between the two positioning blocks 10. So that the positioning plate 2 and the extrusion plate 3 carry two positioning blocks 10 for extrusion respectively, and the positioning block 10 is extruded at the corner position of the lifting lower support 11, and the positioning operation of the lifting lower support 11 can be realized. A switch 12 is fixedly connected to the top of the tooling plate 1 and close to one of its corner lines; the top surface area of ​​the tooling plate 1 is smaller than the bottom surface area. So that the switch 12 can start the two electric cylinders 7, so that the electric cylinders 7 drive the push rod 6 to achieve pushing.

[0028] In this technical solution, as shown in the attached Figure 5-6 As shown, the inner wall of the lower lifting support 11 is slidably connected with a guide plate 13, and a guide support assembly is installed at the bottom end of the guide plate 13; the guide support assembly includes a positioning column 14 fixedly installed at the bottom end of the guide plate 13, and a support column 15 is welded to the bottom end of the positioning column 14, and a connecting chassis 16 is fixedly connected between the support column 15 and the tooling plate 1; a supporting ring 17 is welded to the outer wall of the connecting chassis 16, and a supporting column 18 is fixedly installed at the top end of the supporting ring 17, and a supporting block 19 is welded to the top end of the supporting column 18, and the supporting block 19 is used to support the lower lifting support 11; the outer wall of the guide plate 13 is provided with a guiding surface 20;

[0029] According to the upper structure, when in use, the guide plate 13 is guided to enter through the lower lifting support 11, and the guide surface 20 of the outer wall of the guide plate 13 guides to the positioning column 14, the connecting chassis 16 supports the pillar 15, the pillar 15 supports the positioning column 14, the positioning column 14 guides the lower lifting support 11, and the support ring 17 supports the connecting chassis 16, and the support ring 17 can continue to support the support column 18, the support column 18 supports the support block 19, the support block 19 firmly supports the bottom end of the lower lifting support 11, positions the inner wall of the lower lifting support 11, and supports the bottom end of the lower lifting support 11.

[0030] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tower crane lower support machining tool, comprising a tooling plate (1) and a positioning plate (2), wherein the positioning plate (2) is located above the tooling plate (1), and is characterized in that: A positioning component is provided on one side of the positioning plate (2); The positioning assembly comprises an extrusion plate (3) mounted on one side of the positioning plate (2), the positioning plate (2) and the extrusion plate (3) are both fixedly connected to a connection block (4) on the opposite side, and each of the connection blocks (4) is fixedly connected to a sleeve sliding block (5) on one side; A push rod (6) is welded to one side of each sleeve sliding block (5), an electric cylinder (7) is fixedly mounted to one side of the push rod (6), a slide rod (8) is slidably connected to the inner wall of the sleeve sliding block (5), and the slide rod (8) is welded to the tooling plate (1).

2. The tower crane lower support machining tool according to claim 1, characterized in that: A gap is provided between the positioning plate (2) and the extrusion plate (3), and both the positioning plate (2) and the extrusion plate (3) are slidably connected to the top end of the tooling plate (1).

3. The tower crane lower support machining tool according to claim 1, characterized in that: The two electric cylinders (7) are fixedly connected to the tooling plate (1), and the top end of the connecting block (4) and the top end of the sleeve sliding block (5) are located in the same horizontal plane.

4. The tower crane lower support machining tool according to claim 1, characterized in that: The inner wall of the tooling plate (1) is provided with two sliding grooves (9), and the sleeve sliding block (5) is slidably connected to the tooling plate (1) to which the sliding grooves (9) belong; The outer wall of the sleeve sliding block (5) is configured as a smooth surface.

5. The tower crane lower support machining tool according to claim 1, characterized in that: The top ends of the positioning plate (2) and the extrusion plate (3) are both fixedly connected with positioning blocks (10), and a slidably connected lifting lower support (11) is provided between the two positioning blocks (10).

6. The tower crane lower support machining tool according to claim 1, characterized in that: A switch (12) is fixedly connected to the top of the tooling plate (1) and close to a corner line thereof; The top end surface area of ​​the tooling plate (1) is smaller than the bottom end surface area.

7. The tower crane lower support machining tool according to claim 5, characterized in that: The inner wall of the lifting lower support (11) is slidably connected to a guide plate (13), and a guide support assembly is installed at the bottom end of the guide plate (13); The guide support assembly comprises a positioning column (14) fixedly mounted on the bottom end of the guide plate (13), a support column (15) is welded to the bottom end of the positioning column (14), and a connecting chassis (16) is fixedly connected between the support column (15) and the tooling plate (1); A support ring (17) is welded to the outer wall of the connecting chassis (16), a support column (18) is fixedly mounted on the top of the support ring (17), and a support block (19) is welded to the top of the support column (18), and the support block (19) is used to support the lower lifting support (11); The outer wall of the guide plate (13) is provided with a guide surface (20).

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