A tooling for controlling the welding deformation of the screen frame of a multi-stage sorting machine

Abstract

This utility model relates to a tooling for controlling the welding deformation of a screen frame in a multi-stage sorting machine. 1. It is used to fix the screen frame, which includes a rectangular screen plate at the bottom, positioning side plates arranged opposite to each other on the left and right, and connecting side plates arranged opposite to each other in the front and back. The positioning side plates and connecting side plates are welded together above the screen plate to form a square screen frame. The clamping device includes an inner positioning plate and an outer positioning plate. The top-fixing device includes a top-pressing member that can be movably pressed against the outside of the connecting side plate so that the two sides of the connecting side plate abut against the edges of the positioning side plate. The rigid fixing of the clamping device and the pressing of the top-fixing device form a complementary constraint, so that the large-area clamping of the positioning side plate ensures the positional accuracy of the positioning side plate as a reference. The local pressing of the top-pressing member is specifically aligned with the connecting side plate. The top-pressing member allows the top pressure to be dynamically adjusted with the welding thermal cycle to compensate for the shrinkage deformation of the weld during cooling. The slight displacement of the connecting side plate is compensated by adjusting the pressing pressure.

Description

Technical Field

[0001] This utility model relates to the field of welding tooling technology, specifically to a welding deformation control tooling for a multi-stage sorting machine screen frame. Background Technology

[0002] As the core load-bearing component of the sorting machine, the welding precision of the screen frame directly affects the operational stability of the equipment. In traditional screen frame welding processes, the welding thermal cycle during side plate assembly causes shrinkage deformation and warping of the side plates, compromising the perpendicularity of the reference surface; misalignment gaps easily occur between adjacent side plates, leading to stress concentration in the weld; the tooling based on a rigid fixing mode cannot dynamically compensate for the shrinkage deformation during the welding cooling stage; and the lack of a multi-dimensional positioning mechanism makes it difficult to simultaneously control the lateral displacement and vertical warping of the side plates. When the screen frame dimensions change, conventional tooling requires frequent replacement of positioning components, severely impacting processing efficiency. Utility Model Content

[0003] I. Technical problems to be solved

[0004] The purpose of this utility model is to provide a tooling for controlling the welding deformation of the screen frame of a multi-stage sorting machine, which can accurately position the side plate and ensure the welding accuracy of the screen frame.

[0005] II. Technical Solution

[0006] This utility model is achieved through the following technical solution:

[0007] This utility model proposes a welding deformation control fixture for a multi-stage cleaning machine screen frame, used to fix the screen frame. The screen frame includes a rectangular screen plate at the bottom, positioning side plates arranged opposite each other on the left and right, and connecting side plates arranged opposite each other on the front and back. The positioning side plates and connecting side plates are welded together above the screen plate to form a square screen frame, including:

[0008] The clamping device includes an inner positioning plate and an outer positioning plate that are movably clamped to the inner and outer sides of the positioning side plate, respectively.

[0009] The fixing device includes a pressing member that can be movably pressed against the outside of the connecting side plate so that the two side edges of the connecting side plate abut against the edge of the positioning side plate.

[0010] Furthermore, the clamping device includes a base, and a first rotary cylinder and a second rotary cylinder fixed on the base with opposite orientations. The output end of the first rotary cylinder is fixedly connected to an outer positioning plate, and the output end of the second rotary cylinder is fixedly connected to an inner positioning plate.

[0011] Furthermore, a first telescopic cylinder is fixedly connected to the outer positioning plate, and a second telescopic cylinder is fixedly connected to the inner positioning plate. A pressure block is fixedly connected to the output end of the first telescopic cylinder, and a support plate is fixedly connected to the output end of the second telescopic cylinder. The pressure block and the support plate are movable and press against the upper and lower surfaces of the upper edge of the positioning side plate respectively to fix the positioning side plate in the vertical direction.

[0012] Furthermore, the top pressing component includes a third telescopic cylinder and a top pressing plate fixedly connected to the output end of the third telescopic cylinder; the top fixing device also includes a fourth telescopic cylinder and a top rod fixedly connected to the output end of the fourth telescopic cylinder, the top rod being movable and pressing against the upper surface of the edge of the connecting side plate.

[0013] Furthermore, it also includes a frame, which includes two relatively parallel longitudinal slide rails and two parallel transverse support frames slidably connected above the longitudinal slide rails. A transverse slide rail is fixedly connected above the transverse support frames, and a slider is fixedly connected below the base. The slider is slidably connected to the transverse slide rails. The tail of the fourth telescopic cylinder is fixedly connected to the transverse support frame, and the tail of the third telescopic cylinder is fixedly connected to the base.

[0014] Furthermore, a base plate for supporting the screen plate is fixedly connected between the two longitudinal slide rails.

[0015] III. Beneficial Effects

[0016] Compared with the prior art, this utility model has the following advantages:

[0017] 1. The clamping device of this utility model clamps the positioning side plate over a large area from the inner and outer surfaces. It uses bidirectional clamping force to constrain the welding thermal deformation (such as shrinkage and warping) in the thickness direction of the side plate, which serves as the reference surface for the assembly of the screen frame, ensuring the verticality and flatness of the positioning side plate and providing a precise reference for the assembly of the connecting side plates. The top-fixing device presses against the outer side of the connecting side plate through the top-pressing component, driving its edge to precisely fit with the positioning side plate and eliminating assembly misalignment. The rigid fixation of the clamping device and the pressing of the top-fixing device form complementary constraints, ensuring the positional accuracy of the positioning side plate as a reference by the large-area clamping of the positioning side plate, and the local pressing of the top-pressing component is specifically aligned and matched with the connecting side plate.

[0018] 2. The top pressure component allows the top pressure to be dynamically adjusted with the welding thermal cycle to compensate for the shrinkage deformation of the weld during cooling, and to compensate for the slight displacement of the connecting side plate by adjusting the back pressure. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a structural schematic diagram of the present invention (without a sieve frame);

[0021] Figure 3 This is a schematic diagram of the sieve frame structure;

[0022] Figure 4 This is a schematic diagram of the clamping device;

[0023] Figure 5 yes Figure 4 The front view;

[0024] 1. Screen frame; 1a. Screen plate; 1b. Positioning side plate; 1c. Connecting side plate; 2. Clamping device; 21. Inner positioning plate; 22. Outer positioning plate; 23. Base; 24. First rotary cylinder; 25. Second rotary cylinder; 26. First telescopic cylinder; 27. Second telescopic cylinder; 28. Pressure block; 29. ​​Support plate; 3. Top fixing device; 31. Top pressing component; 311. Third telescopic cylinder; 312. Top pressing plate; 32. Fourth telescopic cylinder; 33. Top rod; 4. Frame; 41. Longitudinal slide rail; 42. Transverse support frame; 43. Transverse slide rail; 44. Slider; 45. Base plate. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] The structure of sieve frame 1 is as follows Figure 3 As shown, it includes a rectangular screen plate 1a at the bottom, and four side plates welded on the top of the screen plate 1a. The side plates arranged opposite each other on the left and right are defined as positioning side plates 1b, and the side plates arranged opposite each other in front and behind are defined as connecting side plates 1c. The positioning side plates 1b and the connecting side plates 1c are welded together on the top of the screen plate 1a to form a square screen frame 1.

[0027] This utility model proposes a welding deformation control fixture for a multi-stage sorting machine screen frame 1, used to fix the screen frame 1. Specifically, as follows... Figure 1-5 As shown, it includes a clamping device 2 and a top-fixing device 3, wherein the clamping device 2 is used to fix the positioning side plate 1b, and the top-fixing device 3 is used to position the connecting side plate 1c.

[0028] The clamping device 2 includes an inner positioning plate 21 and an outer positioning plate 22 that are movably clamped on the inner and outer sides of the positioning side plate 1b, respectively; the top-fixing device 3 includes a top-pressing member 31 that is movably pressed against the outer side of the connecting side plate 1c so that the two sides of the connecting side plate 1c abut against the edges of the positioning side plate 1b.

[0029] The clamping device 2 clamps the positioning side plate 1b over a large area from its inner and outer surfaces. It utilizes bidirectional clamping force to constrain welding thermal deformation (such as shrinkage and warping) in the thickness direction of the side plate, serving as a reference surface for the assembly of the screen frame 1. This ensures the perpendicularity and flatness of the positioning side plate 1b, providing a precise reference for the assembly of the connecting side plate 1c. The top-fixing device 3 presses against the outer side of the connecting side plate 1c through the top-pressing component 31, driving its edge to precisely fit with the positioning side plate 1b, eliminating assembly misalignment, and allowing the top pressure to dynamically adjust with the welding thermal cycle, compensating for shrinkage deformation during weld cooling. The rigid fixing of the clamping device 2 and the pressing of the top-fixing device 3 form complementary constraints, ensuring the accuracy of the positioning side plate 1b's position as a reference by the large-area clamping of the positioning side plate 1b. The local pressing of the top-pressing component 31 is specifically aligned with the connecting side plate 1c, and the slight displacement of the connecting side plate 1c can be compensated by adjusting the pressing force.

[0030] The clamping device 2 includes a base 23 and a first rotary cylinder 24 and a second rotary cylinder 25 fixed to the base 23 and facing opposite directions. The output end of the first rotary cylinder 24 is fixedly connected to the outer positioning plate 22, and the output end of the second rotary cylinder 25 is fixedly connected to the inner positioning plate 21. The first rotary cylinder 24 drives the outer positioning plate 22 to rotate, and the second rotary cylinder 25 drives the inner positioning plate 21 to rotate. In use, the positioning side plate 1b is placed below, and the first rotary cylinder 24 and the second rotary cylinder 25 drive rotation, so that the inner positioning plate 21 and the outer positioning plate 22 clamp the positioning side plate 1b from both sides.

[0031] A first telescopic cylinder 26 is fixedly connected to the outer positioning plate 22, and a second telescopic cylinder 27 is fixedly connected to the inner positioning plate 21. A pressure block 28 is fixedly connected to the output end of the first telescopic cylinder 26, and a support plate 29 is fixedly connected to the output end of the second telescopic cylinder 27. The pressure block 28 is driven to move by the first telescopic cylinder 26, and the support plate 29 is driven to move by the second telescopic cylinder 27. The pressure block 28 and the support plate 29 move and press against the upper and lower surfaces of the upper edge of the positioning side plate 1b respectively, so as to fix the upper edge of the positioning side plate 1b in the vertical direction. In addition, with the bidirectional clamping of the inner positioning plate 21 and the outer positioning plate 22, the position of the positioning side plate 1b is precisely fixed in both the horizontal and vertical directions.

[0032] The pressing component 31 includes a third telescopic cylinder 311 and a pressing plate 312 fixedly connected to the output end of the third telescopic cylinder 311. The pressing plate 312 is moved by the third telescopic cylinder 311 and pressed against both sides of the connecting side plate 1c, so that the connecting side plate 1c and the positioning side plate 1b are aligned and connected. The fixing device 3 also includes a fourth telescopic cylinder 32 and a push rod 33 fixedly connected to the output end of the fourth telescopic cylinder 32. The push rod 33 can move and press against the upper surface of the edge of the connecting side plate 1c. The push rod 33 is driven by the fourth telescopic cylinder 32 to press against the connecting side plate 1c, fixing the connecting side plate 1c in the vertical direction and improving accuracy.

[0033] The system also includes a frame 4, which comprises two relatively parallel longitudinal slide rails 41 and two parallel transverse support frames 42 slidably connected above the longitudinal slide rails 41. A transverse slide rail 43 is fixedly connected above the transverse support frames 42, and a slider 44 is fixedly connected below the base 23. The slider 44 is slidably connected to the transverse slide rails 43. The tail of the fourth telescopic cylinder 32 is fixedly connected to the transverse support frame 42, and the tail of the third telescopic cylinder 311 is fixedly connected to the base 23. The transverse support frame 42 is driven to move longitudinally by the longitudinal slide rails 41, and the transverse slide rails 43 drive the slider 44 and the clamping device 2 to move laterally. This allows for the adaptive clamping and fixing of positioning side plates 1b and connecting side plates 1c of different sizes, enabling the production of screen frames 1 of different sizes.

[0034] A base plate 45 for supporting the screen plate 1a is fixedly connected between two longitudinal slide rails 41; the base plate 45 is a horizontal flat plate that provides a precise reference for positioning the screen frame 1.

[0035] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.

Claims

1. A fixture for controlling the welding deformation of a screen frame in a multi-stage cleaning machine, used to fix the screen frame, the screen frame comprising a rectangular screen plate at the bottom, positioning side plates arranged opposite each other on the left and right, and connecting side plates arranged opposite each other on the front and back, the positioning side plates and connecting side plates being welded together above the screen plate to form a square screen frame, characterized in that, include: The clamping device includes an inner positioning plate and an outer positioning plate that are movably clamped to the inner and outer sides of the positioning side plate, respectively. The fixing device includes a pressing member that can be movably pressed against the outside of the connecting side plate so that the two side edges of the connecting side plate abut against the edge of the positioning side plate.

2. The multi-class sorter screen frame welding deformation control tool of claim 1, wherein, The clamping device includes a base and a first rotary cylinder and a second rotary cylinder fixed on the base and facing opposite directions. The output end of the first rotary cylinder is fixedly connected to an outer positioning plate, and the output end of the second rotary cylinder is fixedly connected to an inner positioning plate.

3. The multi-class sorter screen frame welding deformation control tool according to claim 1 or 2, characterized in that, A first telescopic cylinder is fixedly connected to the outer positioning plate, and a second telescopic cylinder is fixedly connected to the inner positioning plate. A pressure block is fixedly connected to the output end of the first telescopic cylinder, and a support plate is fixedly connected to the output end of the second telescopic cylinder. The pressure block and the support plate are movable and press against the upper and lower surfaces of the upper edge of the positioning side plate respectively to fix the positioning side plate in the vertical direction.

4. The multi-class sorter screen frame welding deformation control tool of claim 2, wherein, The top pressing component includes a third telescopic cylinder and a top pressing plate fixedly connected to the output end of the third telescopic cylinder; the top fixing device also includes a fourth telescopic cylinder and a top rod fixedly connected to the output end of the fourth telescopic cylinder, the top rod being movable and pressing against the upper surface of the edge of the connecting side plate.

5. The multi-class sorter screen frame welding deformation control tool of claim 4, wherein, It also includes a frame, which includes two relatively parallel longitudinal slide rails and two parallel transverse support frames slidably connected above the longitudinal slide rails. A transverse slide rail is fixedly connected above the transverse support frame, and a slider is fixedly connected below the base. The slider is slidably connected to the transverse slide rails. The tail of the fourth telescopic cylinder is fixedly connected to the transverse support frame, and the tail of the third telescopic cylinder is fixedly connected to the base.

6. The multi-deck sorter screen frame welding deformation control tool of claim 5, wherein, A base plate for supporting the screen plate is fixedly connected between the two longitudinal slide rails.

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