A bending device for metal tee joint production

Abstract

The utility model relates to metal tee bend production technical field, concretely relates to a kind of bending device of metal tee bend production, including bending protection subassembly, the sliding groove inner wall slidingly connected with slide, the upper surface of the slide is fixedly connected with lower clamping block, the side surface of the limiting rod is movably penetrated with upper clamping block, the second electric telescopic link end is fixedly connected with side mounting block, the side surface of the side mounting block is fixedly connected with side batten, the side surface of the side batten bottom is fixedly connected in the side surface of heightening platform, the lower surface of the heightening platform is fixedly connected in the upper surface of workbench, by lower clamping block continuous slide can move horizontally, the four corners of lower clamping block limiting rod is penetrated in upper clamping block, upper clamping block can be vertically lifted, when adapting different size tee bend, telescopic rod drives lower clamping block horizontal distance adjustment, upper clamping block is vertically adjusted along limiting rod, and double regulation realizes stable clamping. Reduce cost and time, ensure workpiece accurate positioning.

Description

Technical Field

[0001] This utility model relates to the field of metal tee manufacturing technology, and in particular to a bending device for metal tee manufacturing. Background Technology

[0002] In the production of metal tees, bending is a key forming process, requiring external force to deform the metal tube along a preset trajectory to form the branch structure of the tee. Existing bending devices mostly use hydraulic cylinders to drive the stamping head in conjunction with rollers to achieve bending, but they generally suffer from problems such as the workpiece easily sticking to the rollers and jamming after bending, requiring manual assistance to detach it, which affects production efficiency; the key components of the device are mostly in fixed positions, making it difficult to adapt to the bending requirements of different tee specifications, resulting in poor versatility.

[0003] Patent CN221388311U discloses a bending device for producing metal tees, including a hydraulic cylinder and a second lifting platform. Two rollers are rotatably mounted on the top of the second lifting platform. A punch head is fixedly connected to the output end of the hydraulic cylinder. A receiving box is provided on the side of the second lifting platform near the hydraulic cylinder. An ejector is provided at the top of the second lifting platform. This invention, by providing a receiving box and an ejector, allows the punch head to press against the T-shaped tube material and pass laterally through the rollers. The spring is stretched, and the hydraulic cylinder controls the punch head to retract. Under the spring tension, the ejector pushes the tube material, causing it to be pushed towards the receiving box by the ejector under the rotation of the rollers, falling into the receiving box for collection, thus achieving automatic material unloading.

[0004] While existing bending devices for metal tees employ a receiving box and an ejector, with the punch pressing against the T-shaped tube as it passes laterally through rollers, a spring being stretched, and a hydraulic cylinder controlling the retraction of the punch, the ejector, under the spring's tension, pushes the tube towards the receiving box under the rotation of the rollers, thus achieving automatic unloading, they face numerous prominent problems in practical use. In terms of specific operation, producing tees with different bending angles and lengths requires replacing the entire lifting platform or hydraulic cylinder mounting base, resulting in low equipment versatility and increased investment costs. Therefore, addressing these shortcomings of existing technology, we urgently need an innovative bending device for metal tees to solve these problems. Summary of the Invention

[0005] The purpose of this utility model is to provide a bending device for the production of metal tees, which solves the problem that if tees with different bending angles and lengths need to be produced, the entire lifting platform or hydraulic cylinder mounting base needs to be replaced, resulting in low equipment versatility and increased equipment investment costs.

[0006] To achieve the above objectives, this utility model provides a bending device for producing metal tees, including a bending protection assembly. The bending protection assembly includes a support leg, a worktable fixedly connected to the top of the support leg, and a clamping assembly above the worktable. The clamping assembly includes a lifting platform, a groove formed on the upper surface of the lifting platform, a slide bar slidably connected to the inner wall of the groove, a lower clamping block fixedly connected to the upper surface of the slide bar, limit rods fixedly connected to the four corners of the upper surface of the lower clamping block, an upper clamping block movably passing through the side surface of the limit rods, a connecting plate fixedly connected to the side surface of the lower clamping block, a second electric telescopic rod fixedly connected to the side surface of the connecting plate, a side mounting block fixedly connected to the end of the second electric telescopic rod, a side pad fixedly connected to the side surface of the side mounting block, a bottom side surface of the side pad fixedly connected to the side surface of the lifting platform, and a lower surface of the lifting platform fixedly connected to the upper surface of the worktable.

[0007] The slide groove and the slide bar are both two in number and are in corresponding positions. The upper clamping block and the lower clamping block are each provided with a placement pit on their corresponding sides.

[0008] The lower clamping block has springs fixedly connected to the four corners of its upper surface, and the top of each spring is fixedly connected to the lower surface of the upper clamping block. A third electric telescopic rod is fixedly connected to the upper surface of the upper clamping block.

[0009] The worktable has a protective side plate fixedly connected to its upper surface, a protective top plate fixedly connected to the top of the protective side plate, a support shell fixedly connected to its upper surface, a connecting inclined plate fixedly connected between the support shell and the protective top plate, and the output end of the third electric telescopic rod movably connected to the lower surface of the protective top plate.

[0010] A blower is fixedly connected to the upper surface of the support shell, and an air guide pipe is fixedly connected to the air outlet of the blower. The side surface of the air guide pipe is fixedly connected to the inside of the connecting inclined plate.

[0011] The lower surface of the support shell is fixedly connected to a first electric telescopic rod, and the output end of the first electric telescopic rod is fixedly connected to a bending block. An installation port is provided on the upper left side surface of the workbench. Limiting strips are fixedly connected to the inner left side wall of the workbench. There are two limiting strips and their positions correspond. A receiving strip is movably connected to the upper surface of the two limiting strips. A waste collection bin is fixedly connected between the two receiving strips.

[0012] This utility model discloses a bending device for producing metal tees. Based on a support leg, a worktable is fixed to the top, and the clamping assembly is fixed to the worktable via the lower surface of an extension platform. The extension platform's sliding groove and slide bar engage, allowing the lower clamping block and slide bar to move laterally. Four corner limiting rods of the lower clamping block pass through the upper clamping block, enabling the upper clamping block to move vertically. The lower clamping block is connected to a second electric telescopic rod via a connecting plate. The telescopic rod is fixed to the extension platform via a side mounting block and a side pad, forming the drive path. When adapting to different sized tees, the telescopic rod drives the lower clamping block to adjust laterally, while the upper clamping block adjusts longitudinally along the limiting rods, achieving stable clamping through dual adjustment. This structure eliminates the need for mold changes, reducing costs and time, ensuring precise workpiece positioning, avoiding bending deviations and deformation, and improving versatility and processing stability. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a front view structural schematic diagram of the bending device for producing metal tees according to an embodiment of this utility model.

[0015] Figure 2 This is a schematic diagram of the right side of the bending device for producing metal tees according to an embodiment of this utility model.

[0016] Figure 3 This utility model relates to a bending device for producing metal tees. Figure 2 Enlarged schematic diagram of the structure at point A in the diagram.

[0017] Figure 4 This is a front view structural schematic diagram of the bending device for producing metal tees according to an embodiment of this utility model.

[0018] Figure 5 This is a schematic diagram of the left side of the bending device for producing metal tees according to an embodiment of this utility model.

[0019] 1. Bending protection assembly; 101. Support leg; 102. Workbench; 103. Protective side plate; 104. Protective top plate; 105. Connecting inclined plate; 106. Support shell; 107. Blower; 108. Air duct; 109. Limiting strip; 110. Receiving strip; 111. Waste collection bin; 112. First electric telescopic rod; 113. Bending block; 2. Clamping assembly; 201. Raising platform; 202. Slide groove; 203. Side pad; 204. Side mounting block; 205. Second electric telescopic rod; 206. Connecting plate; 207. Lower clamping block; 208. Slide bar; 209. Limiting rod; 210. Upper clamping block; 211. Spring; 212. Third electric telescopic rod. Detailed Implementation

[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0021] Please see Figures 1-5 A bending device for producing metal tees includes a bending protection component 1. The bending protection component 1 includes a support leg 101, a worktable 102 fixedly connected to the top of the support leg 101, and a clamping component 2 above the worktable 102. The clamping component 2 includes a raising platform 201, a groove 202 formed on the upper surface of the raising platform 201, a slide bar 208 slidably connected to the inner wall of the groove 202, and a lower clamping block 207 fixedly connected to the upper surface of the slide bar 208. A series of clamping blocks are fixedly connected to the four corners of the upper surface of the lower clamping block 207. The positioning rod 209 has an upper clamping block 210 that movably passes through its side surface. A connecting plate 206 is fixedly connected to the side surface of the lower clamping block 207. A second electric telescopic rod 205 is fixedly connected to the side surface of the connecting plate 206. A side mounting block 204 is fixedly connected to the end of the second electric telescopic rod 205. A side pad 203 is fixedly connected to the side surface of the side mounting block 204. The bottom side surface of the side pad 203 is fixedly connected to the side surface of the elevation platform 201. The lower surface of the elevation platform 201 is fixedly connected to the upper surface of the workbench 102. The bending protection assembly 1 provides basic support for the device. The support leg 101 is fixedly connected to the workbench 102 at its top, creating a stable working platform. The clamping assembly 2 achieves assembly positioning by fixing the lower surface of the elevation platform 201 to the workbench 102. When a metal tee pipe needs to be clamped, the second electric telescopic rod 205 extends and retracts, and its power is transmitted to the lower clamping block 207 through the connecting plate 206. This causes the lower clamping block 207 to slide along the inner wall of the slide groove 202 with the slide bar 208, thereby adjusting the lateral position of the lower clamping block 207. At the same time, the upper clamping block 210 can move longitudinally along the side surface of the limiting rod 209. Through the combination of lateral and longitudinal adjustments, it can adapt to the clamping requirements of tee pipes of different sizes, providing a stable positioning basis for subsequent bending operations.

[0022] Furthermore, there are two slide grooves 202 and two corresponding slide bars 208. The upper clamping block 210 and the lower clamping block 207 each have a placement recess on their corresponding sides. The slide grooves 202 and slide bars 208 are arranged in two sets and are positioned accordingly. The two sets of slide bars 208 simultaneously support the lower clamping block 207, ensuring balanced force during lateral sliding of the lower clamping block 207 and preventing clamping misalignment caused by unilateral offset. The placement recesses on the corresponding sides of the upper clamping block 210 and the lower clamping block 207 can fit against the outer wall of the metal tee pipe, increasing the clamping contact area and simultaneously pre-positioning the tee pipe, preventing workpiece rotation or offset during clamping and improving clamping stability.

[0023] Furthermore, springs 211 are fixedly connected to the four corners of the upper surface of the lower clamping block 207. The top of the springs 211 is fixedly connected to the lower surface of the upper clamping block 210, and a third electric telescopic rod 212 is fixedly connected to the upper surface of the upper clamping block 210. When the springs 211 on the upper surface of the lower clamping block 207 are in their natural state, they apply an upward supporting force to the upper clamping block 210, keeping the upper clamping block 210 at its initial height. When it is necessary to clamp the T-shaped pipe, the output end of the third electric telescopic rod 212 extends downward, applying downward pressure to the upper clamping block 210, driving the upper clamping block 210 to move downward along the limiting rod 209, while compressing the springs 211, until the upper clamping block 207 and the lower clamping block 210 clamp the workpiece together. When the workpiece is released, the output end of the third electric telescopic rod 212 retracts, the springs 211 elastically reset, and the upper clamping block 210 automatically moves upward to reset, achieving rapid material release.

[0024] Furthermore, a protective side plate 103 is fixedly connected to the upper surface of the workbench 102, a protective top plate 104 is fixedly connected to the top of the protective side plate 103, a support shell 106 is fixedly connected to the upper surface of the workbench 102, and a connecting inclined plate 105 is fixedly connected between the support shell 106 and the protective top plate 104. The output end of the third electric telescopic rod 212 is movably connected to the lower surface of the protective top plate 104. The protective side plate 103 and the protective top plate 104 form a closed protective space, which can block metal debris from flying during bending and prevent operators from accidentally touching moving parts, ensuring operational safety. The support shell 106 cooperates with the connecting inclined plate 105 to provide auxiliary support for the protective top plate 104, enhancing the stability of the protective structure. The output end of the third electric telescopic rod 212 is movably connected to the lower surface of the protective top plate 104, so that when the third electric telescopic rod 212 drives the upper clamping block 210 to rise and fall, it can maintain stable force, avoid deformation of the telescopic rod due to installation and fixation, and extend the service life of the components.

[0025] Furthermore, a blower 107 is fixedly connected to the upper surface of the support shell 106, and an air guide pipe 108 is fixedly connected to the air outlet of the blower 107. The side surface of the air guide pipe 108 is fixedly connected to the inside of the connecting inclined plate 105. When metal shavings are generated during the bending operation, the blower 107 starts to generate high-pressure airflow, which enters the air guide pipe 108 through the air outlet. The air guide pipe 108, through its fixed connection with the connecting inclined plate 105 via its side surface, guides the high-pressure airflow to the working area of ​​the workbench 102. The airflow can blow the shavings scattered on the surface of the workbench 102 and around the clamping assembly 2 in a designated direction, reducing the impact of shavings accumulation on the operation of the components and keeping the working environment clean.

[0026] Furthermore, a first electric telescopic rod 112 is fixedly connected to the lower surface of the support shell 106, and a bending block 113 is fixedly connected to the output end of the first electric telescopic rod 112. An installation port is provided on the upper left side surface of the workbench 102, and two limit strips 109 are fixedly connected to the inner left side wall of the workbench 102. The number of limit strips 109 is two and their positions correspond. A receiving strip 110 is movably connected to the upper surface of the two limit strips 109, and a waste collection bin 111 is fixedly connected between the two receiving strips 110. After the workpiece is clamped and positioned, the output end of the first electric telescopic rod 112 extends upward, driving the bending block 113 to move upward synchronously. The bending block 113 contacts the part of the workpiece to be bent and applies an upward bending force, causing the workpiece to deform along a preset trajectory and complete the bending operation. The waste generated by bending falls to the mounting port on the left side of the worktable 102 and falls into the waste collection bin 111 through the receiving strip 110, realizing the centralized collection of waste. The receiving strip 110 can be easily pulled out of the waste collection bin 111 through the movable connection with the limiting strip 109, which facilitates the cleaning of waste.

[0027] Complete working process: Before the device is started, all components are in their initial state: the output end of the third electric telescopic rod 212 retracts, the spring 211 extends naturally, driving the upper clamping block 210 to remain in the initial upward position along the limiting rod 209, forming an opening between the upper clamping block 210 and the lower clamping block 207 for the workpiece to be placed; the second electric telescopic rod 205 is in its initial telescopic state, and the lower clamping block 207 is located in the preset initial position of the slide groove 202 along with the slide bar 208; the waste collection bin 111 is movably connected to the limiting bar 109 through the receiving bar 110 and is assembled below the mounting port on the left side of the workbench 102, completing the waste collection preparation. The operator places the metal tee pipe to be bent into the placement recess on the upper surface of the lower clamping block 207, using the recess to achieve pre-positioning of the workpiece. The clamping drive mechanism is activated, and the output end of the third electric telescopic rod 212 extends downward, applying axial pressure to the upper clamping block 210. This drives the upper clamping block 210 to move vertically downward along the limiting rod 209, while simultaneously compressing the spring 211, until the placement recess on the lower surface of the upper clamping block 210 fits against the outer wall of the tee pipe, working together with the lower clamping block 207 to clamp the workpiece. If there are differences in workpiece size, the second electric telescopic rod 205 can be activated, which extends and retracts axially, causing the connecting plate 206 to move. This, in turn, drives the lower clamping block 207 to slide laterally along the inner wall of the slide groove 202 with the slide bar 208, adjusting the relative position of the lower clamping block 207 and the bending block 113 to ensure that the part of the workpiece to be bent is precisely aligned with the bending block 113, completing the clamping and positioning. During this process, the two sets of slide grooves 202 and slide bars 208 synchronously support the lower clamping block 207, preventing offset during lateral sliding and ensuring positioning accuracy. After the workpiece is positioned, the first electric telescopic rod 112 is activated, and its output end extends upward, driving the bending block 113 to move vertically upward in sync. The bending block 113 contacts the part of the workpiece to be bent and applies a preset bending force, causing the metal tee pipe to undergo plastic deformation along the contour of the bending block 113 until the preset bending angle is reached, thus completing the bending operation. During the bending process, the protective side plate 103 and the protective top plate 104 form a closed protective space to prevent metal debris from flying and to prevent operators from accidentally touching moving parts such as the first electric telescopic rod 112 and the bending block 113. The support shell 106 cooperates with the connecting inclined plate 105 to provide stable support for the protective top plate 104 and the third electric telescopic rod 212, preventing bending vibration from causing deformation of the protective structure or driving components. After the bending operation is synchronized or completed, the blower 107 is started. The high-pressure airflow generated by the blower 107 enters the air guide pipe 108 through the air outlet. The air guide pipe 108 guides the airflow to the working area of ​​the workbench 102 through the fixed through structure with the connecting inclined plate 105. The airflow blows the metal debris scattered on the surface of the workbench 102 and in the gaps of the clamping components 2 towards the mounting port on the left side of the workbench 102. The debris falls into the waste collection bin 111 below through the mounting port, realizing dust removal and cleaning of the working area.Subsequently, the output end of the third electric telescopic rod 212 retracts, the spring 211 elastically resets, driving the upper clamping block 210 to move upwards and reset along the limit rod 209, releasing the clamp on the workpiece. The operator then removes the bent metal tee pipe, completing the unloading. When the waste material in the waste collection bin 111 reaches the preset amount, the operator pulls out the receiving strip 110 along the upper surface of the limit strip 109, causing the waste collection bin 111 to detach from the installation port of the workbench 102. After emptying the waste, the receiving strip 110 is placed back on the limit strip 109, resetting the waste collection bin 111 to its original position, ready for the next work cycle.

[0028] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bending device for manufacturing metal tees, comprising a bending protection assembly, characterized in that, The bending protection assembly includes a support leg, a workbench fixedly connected to the top of the support leg, a clamping assembly above the workbench, and a lifting platform. A groove is formed on the upper surface of the lifting platform, a slide bar is slidably connected to the inner wall of the groove, a lower clamping block is fixedly connected to the upper surface of the slide bar, limit rods are fixedly connected to the four corners of the upper surface of the lower clamping block, an upper clamping block is movably connected to the side surface of the limit rods, a connecting plate is fixedly connected to the side surface of the lower clamping block, a second electric telescopic rod is fixedly connected to the side surface of the connecting plate, a side mounting block is fixedly connected to the end of the second electric telescopic rod, a side pad is fixedly connected to the side surface of the side mounting block, the bottom side surface of the side pad is fixedly connected to the side surface of the lifting platform, and the lower surface of the lifting platform is fixedly connected to the upper surface of the workbench.

2. The bending device for producing metal tees as described in claim 1, characterized in that, The number of slide grooves and slide bars are two and their positions correspond. The upper clamping block and the lower clamping block are provided with placement pits on their corresponding sides.

3. The bending device for producing metal tees as described in claim 1, characterized in that, Springs are fixedly connected to the four corners of the upper surface of the lower clamping block, and the top of the springs is fixedly connected to the lower surface of the upper clamping block. A third electric telescopic rod is fixedly connected to the upper surface of the upper clamping block.

4. The bending device for producing metal tees as described in claim 3, characterized in that, A protective side plate is fixedly connected to the upper surface of the workbench, a protective top plate is fixedly connected to the top of the protective side plate, a support shell is fixedly connected to the upper surface of the workbench, a connecting inclined plate is fixedly connected between the support shell and the protective top plate, and the output end of the third electric telescopic rod is movably connected to the lower surface of the protective top plate.

5. The bending device for producing metal tees as described in claim 4, characterized in that, A blower is fixedly connected to the upper surface of the support shell, and an air guide pipe is fixedly connected to the air outlet of the blower. The side surface of the air guide pipe is fixedly connected to the inside of the connecting inclined plate.

6. The bending device for producing metal tees as described in claim 4, characterized in that, A first electric telescopic rod is fixedly connected to the lower surface of the support shell. A bending block is fixedly connected to the output end of the first electric telescopic rod. An installation port is provided on the upper left side surface of the workbench. Limiting strips are fixedly connected to the inner wall of the left side of the workbench. There are two limiting strips and their positions correspond. A receiving strip is movably connected to the upper surface of the two limiting strips. A waste collection bin is fixedly connected between the two receiving strips.

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