Clamping device for clamping stacked cylindrical bars one by one
The cylindrical bar clamping device, designed by combining mounting brackets, retracting brackets, and drive motors, solves the problems of unstable clamping and low operating efficiency of existing devices, achieving stable clamping and efficient handling of different bars, and reducing costs and maintenance difficulties.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIJIAZHUANG TIANWEI NEW MATERIALS TECHNOLOGY CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-05
AI Technical Summary
Existing cylindrical bar clamping devices suffer from unstable clamping, low operating efficiency, limited applicability, difficulty in adapting to bars of different lengths and diameters, and are also complex in structure, costly, and difficult to maintain.
It adopts a combination design of mounting bracket, retraction bracket, drive motor and transmission components. It achieves precise adjustment and stable clamping by adjusting the lead screw and guide rail structure. Combined with the modular design, it is easy to disassemble and maintain.
It achieves stable and precise clamping of bars of different lengths and diameters, improves handling efficiency and safety, reduces manufacturing costs and maintenance difficulty, and is suitable for a wide range of industrial applications.
Smart Images

Figure CN224198677U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stacking and transfer clamping technology, specifically a clamping device for clamping the main root of stacked cylindrical bars. Background Technology
[0002] In industrial production, the handling and stacking of cylindrical bars is a common operation, especially in metal processing, building materials, and machinery manufacturing. Traditional cylindrical bar clamping devices mostly employ manual or simple mechanical structures, which suffer from problems such as unstable clamping, low operating efficiency, and limited applicability. Particularly when handling cylindrical bars of different lengths and diameters, traditional devices often struggle to achieve precise adjustment and stable clamping, leading to slippage and displacement during handling, thus affecting production efficiency and safety.
[0003] With the continuous development of automation technology, the requirements for cylindrical bar clamping devices are becoming increasingly stringent. While existing automated clamping devices have improved operational efficiency to some extent, they still have many shortcomings in their structural design. For example, some devices cannot adapt to bars of different lengths, or lack sufficient stability and precision during clamping. Furthermore, existing devices have complex structures, high manufacturing costs, and are difficult to maintain and replace parts, limiting their widespread application in actual production.
[0004] Therefore, there is an urgent need for a cylindrical bar clamping device that is simple in structure, flexible in operation, and widely applicable, capable of stably and accurately clamping and transporting cylindrical bars of different lengths and diameters, while possessing high structural strength and durability to meet the needs of modern industrial production. Utility Model Content
[0005] In view of the above-mentioned shortcomings in the existing technology, the purpose of this utility model is to provide a clamping device for clamping stacked cylindrical bars one by one. It has the advantages of simple structure, flexible operation, wide application range and high stability. It can significantly improve the efficiency and safety of clamping and handling cylindrical bars, while reducing manufacturing costs and maintenance difficulty, and has high practicality and economy.
[0006] The technical solution adopted by this utility model to achieve the above-mentioned objective is: a clamping device for clamping stacked cylindrical bars one by one, including a mounting bracket and a take-up and release bracket, a drive motor, and a transmission assembly assembled on the mounting bracket. The take-up and release bracket is arranged along the length direction of the mounting bracket, and at least one set of take-up and release brackets is provided. When one set of take-up and release brackets is provided, a fixed bracket is also fixedly installed on the mounting bracket, and the fixed bracket is arranged along the length direction of the mounting bracket.
[0007] Each set of the take-up and take-down brackets is equipped with the transmission assembly, which includes a connector and an adjusting screw. The connector is slidably mounted on the mounting bracket and moves along the length of the mounting bracket. The take-up and take-down bracket is fixedly connected to the lower part of the connector. The adjusting screw is rotatably mounted in the mounting bracket and is kept in a screwed connection with the adjusting screw.
[0008] The drive motor is fixedly installed in the middle of the mounting bracket, and the output shaft of the drive motor is connected to the adjusting screw in each group of the transmission components.
[0009] Based on the above technical solutions, in order to ensure that the connector can be stably assembled on the mounting bracket in a relatively sliding posture and to achieve a fixed combination with the retractable bracket, the following technical solutions are provided.
[0010] The mounting bracket includes a base plate and side plates fixed to both sides of the base plate. The base plate has two sets of strip-shaped through grooves arranged in the same straight direction. The upper and lower surfaces of the base plate are respectively fixed with an upper guide rail and a lower guide rail, which are arranged on both sides of the strip-shaped through grooves.
[0011] The connector includes an upper positioning plate, a lower positioning plate, a connecting seat, an upper guide groove, and a lower guide groove. A connecting seat is fixed between the upper and lower positioning plates. The connecting seat is arranged in the strip-shaped through groove. The upper guide groove is fixedly installed at the bottom of the upper positioning plate and slidably inserted into the upper guide rail. The lower guide groove is fixedly installed at the top of the lower positioning plate and slidably inserted into the lower guide rail. The retractable bracket is fixedly installed at the bottom of the lower positioning plate.
[0012] Based on the above technical solutions, in order to ensure that the adjusting screw can be stably assembled in the mounting bracket and achieve a swivel connection with the connecting parts, the following technical solutions are provided.
[0013] The two sets of side plate brackets of the mounting bracket are fixedly connected to the connecting plate. The adjusting screw is rotatably mounted on the connecting plate. The connecting member also includes a rotating seat fixedly connected to the upper positioning plate. The rotating seat is rotatably connected to the adjusting screw.
[0014] Based on the above technical solutions, in order to ensure that the fixed bracket can be stably installed on the mounting bracket, and to ensure that the fixed bracket and the take-up bracket or two sets of take-up brackets can stably clamp the cylindrical bar, the following technical solutions are provided.
[0015] A pad is arranged between the base plate of the fixed bracket and the mounting bracket. The fixed bracket and the retractable bracket are arranged at the same horizontal position. Vertically arranged clamps are fixed to the outer ends of both the fixed bracket and the retractable bracket.
[0016] In the above technical solution, in order to ensure that the clamping device can be stably assembled on the moving parts of the stacking or transfer equipment, the stacking or transfer equipment drives the clamping device and the clamped cylindrical bar to perform transfer or stacking operations, and at the same time ensures that the drive motor is stably assembled on the mounting bracket, the following technical solution is provided.
[0017] A connecting frame is fixedly connected to the middle section of the mounting bracket. An assembly through hole is provided on the connecting frame. The drive motor is fixedly installed in the connecting frame. A drive bevel gear is fixedly connected to the output shaft of the drive motor. A transmission bevel gear is fixedly connected to the inner end of the adjusting screw. The transmission bevel gear and the drive bevel gear are meshed together.
[0018] The beneficial effects of this utility model are:
[0019] 1. Simple and strong structure: The clamping device uses a mounting bracket, a take-up bracket, and a fixing bracket made of channel steel by cutting and welding, which ensures the strength and stability of the overall structure, can bear the weight of the cylindrical bar, and ensures safety during the clamping process.
[0020] 2. Precise adjustment and stable clamping: The drive motor drives the adjusting screw to move, so as to achieve precise movement of the connecting parts and the take-up and take-down brackets along the length of the mounting bracket. This ensures that the clamping position of the cylindrical bar is precisely adjusted, avoiding slippage or displacement and improving the stability of clamping.
[0021] 3. Adaptable to different bar lengths: The device can flexibly configure the number of take-up and release supports and fixed supports according to the length of the bar. For longer bars, two sets of symmetrically arranged take-up and release supports are used, and the opening and closing distance is increased by synchronous reverse movement; for shorter bars, a single take-up and release support is used in combination with a fixed support, which simplifies the structure and reduces costs.
[0022] 4. Modular design for easy disassembly and maintenance: The connectors adopt a split design and are fixed by bolts, making disassembly and maintenance convenient. The design of the strip groove, upper guide rail, and lower guide rail ensures stable sliding and fixed connection between the connectors and the take-up and take-down brackets, facilitating the replacement of parts or adjustment of device configuration.
[0023] 5. High-efficiency automated operation: The drive motor is connected to the adjusting screw through bevel gears to achieve automated control, reduce manual intervention, and improve handling and stacking efficiency, making it particularly suitable for large-scale industrial production scenarios.
[0024] 6. Wide range of applications: The device can be adapted to cylindrical bars of different diameters and lengths. By adjusting the distance between the fixed support and the take-up and take-down support or increasing the number of take-up and take-down supports, it can meet the needs of various working conditions and has strong versatility.
[0025] In summary, this clamping device has the advantages of simple structure, flexible operation, wide applicability, and high stability. It can significantly improve the efficiency and safety of clamping and handling cylindrical bars, while reducing manufacturing costs and maintenance difficulty, and has high practicality and economy. Attached Figure Description
[0026] Figure 1 This is a structural diagram of the present invention when two sets of retractable supports are assembled;
[0027] Figure 2 for Figure 1 A structural diagram from another perspective;
[0028] Figure 3 This is a structural diagram of the present invention when one set of the retractable bracket and one set of the fixed bracket are assembled;
[0029] Figure 4 for Figure 3 A structural diagram from another perspective;
[0030] Figure 5 A detailed schematic diagram showing the transmission components, the take-up and take-down bracket, and the drive motor mounted on the mounting bracket;
[0031] Figure 6 This is a schematic diagram of the connectors and retractable brackets in a disassembled state.
[0032] In the diagram: 1 Mounting bracket, 11 Base plate, 111 Strip groove, 112 Upper guide rail, 113 Lower guide rail, 12 Side plate, 121 Connecting plate, 13 Pad strip, 14 Connecting frame, 141 Assembly through hole, 21 Retracting bracket, 22 Fixed bracket, 23 Clamping plate, 3 Drive motor, 31 Drive bevel gear, 41 Connecting piece, 411 Upper positioning plate, 412 Lower positioning plate, 413 Connecting seat, 414 Upper guide groove, 415 Lower guide groove, 416 Rotary seat, 42 Adjusting screw, 421 Transmission bevel gear. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Please see Figure 1-6A clamping device for picking up stacked cylindrical bars one by one includes a mounting bracket 1 and a take-up and release bracket 21, a drive motor 3, and a transmission assembly assembled on the mounting bracket 1. The take-up and release bracket 21 is arranged along the length direction of the mounting bracket 1, and at least one set of take-up and release brackets 21 is provided. When one set of take-up and release brackets 21 is provided, a fixed bracket 22 is also fixedly installed on the mounting bracket 1. The fixed bracket 22 is arranged along the length direction of the mounting bracket 1.
[0035] Each set of take-up and take-down brackets 21 is equipped with a transmission assembly, which includes a connector 41 and an adjusting screw 42. The connector 41 is slidably mounted on the mounting bracket 1 and moves along the length of the mounting bracket 1. The take-up and take-down bracket 21 is fixedly connected to the bottom of the connector 41. The adjusting screw 42 is rotatably mounted in the mounting bracket 1 and is kept in a screwed connection with the adjusting screw 42.
[0036] The drive motor 3 is fixedly installed in the middle of the mounting bracket 1, and the output shaft of the drive motor 3 is connected to the adjusting screw 42 in each group of transmission components.
[0037] The mounting bracket 1, as well as the take-up and take-down bracket 21 and the fixing bracket 22, are all made of channel steel by cutting and welding, which can ensure their own structural strength, thereby ensuring stable clamping, transfer and stacking of cylindrical bars.
[0038] When the drive motor 3 is running, it can drive the adjusting screw 42 to rotate stably around its own axis, thereby driving the connecting piece 41 and the take-up and take-down bracket 21 connected to the connecting piece 41 to run stably along the length direction of the mounting bracket 1, so as to achieve precise adjustment of the specific position of the take-up and take-down bracket 21.
[0039] When the clamping device uses two sets of horizontally opposed take-up and release brackets 21, both sets of take-up and release brackets 21 can be driven by the drive motor 3 through the transmission component to run stably, so as to move closer or further away from each other. The two sets of take-up and release brackets 21 respectively clamp the two ends of the cylindrical bar material, and stably clamp the cylindrical bar material.
[0040] When the clamping device uses one set each of the take-up bracket 21 and the fixed bracket 22, the fixed bracket 22 is always in a fixed position relative to the mounting bracket 1, while the take-up bracket 21 is driven by the drive motor 3 through the transmission component to achieve effective adjustment of the distance between the take-up bracket 21 and the fixed bracket 22, thereby effectively clamping the cylindrical bar material between the fixed bracket 22 and the take-up bracket 21, and stably clamping it.
[0041] When the length of the bar being operated is large, two sets of symmetrically arranged take-up and release brackets 21 and corresponding transmission components can be installed on the mounting bracket 1. The two sets of take-up and release brackets 21 run synchronously in opposite directions, which can increase their opening and closing distance, thereby ensuring stable clamping of cylindrical bars of larger length.
[0042] When the length of the bar stock being operated is small, a single take-up and release bracket 21 and a fixed bracket 22 can be used together. The fixed bracket 22 is relatively stationary, while the take-up and release bracket 21 is driven by the drive motor 3 and the transmission assembly. The opening and closing distance between the two is small to accommodate cylindrical bars with short lengths, but this simplifies the structure of the clamping device and controls manufacturing costs.
[0043] To ensure that the connector 41 can be stably assembled on the mounting bracket 1 in a relatively sliding posture and to achieve a fixed combination with the retractable bracket 21, the following technical solution is provided.
[0044] The mounting bracket 1 includes a base plate 11 and side plates 12 fixed to both sides of the base plate 11. The base plate 11 has two sets of strip-shaped through grooves 111 arranged in the same straight direction. The upper and lower surfaces of the base plate 11 are respectively fixed with an upper guide rail 112 and a lower guide rail 113, and the upper guide rail 112 and the lower guide rail 113 are arranged on both sides of the strip-shaped through grooves 111.
[0045] The connector 41 includes an upper positioning plate 411, a lower positioning plate 412, a connecting seat 413, an upper guide groove 414, and a lower guide groove 415. The connecting seat 413 is fixed between the upper positioning plate 411 and the lower positioning plate 412. The connecting seat 413 is arranged in the strip-shaped through groove 111. The upper guide groove 414 is fixedly installed at the bottom of the upper positioning plate 411 and slidably inserted into the upper guide rail 112. The lower guide groove 415 is fixedly installed at the top of the lower positioning plate 412 and slidably inserted into the lower guide rail 113. The retractable bracket 21 is fixedly installed at the bottom of the lower positioning plate 412.
[0046] Mounting bracket 1 adopts a structure of base plate 11 and side plate 12, which can ensure its own structural strength. Specifically, it can be made of channel steel.
[0047] Each component in connector 41 is a separate design and is assembled and fixed by bolts. Specifically, the upper guide groove 414 and the lower guide groove 415 are fixed to the upper positioning plate 411 and the lower positioning plate 412 respectively by corresponding bolt assemblies. The upper positioning plate 411, the connecting seat 413, the lower positioning plate 412, and the retractable bracket 21 are fixedly assembled by through bolt assemblies. This design facilitates the disassembly and assembly of connector 41 on mounting bracket 1 for the replacement of fixed bracket 22 or retractable bracket 21, while the strip groove 111 ensures that connector 41 is fixedly connected to the retractable bracket 21 arranged below mounting bracket 1.
[0048] The upper guide rail 112, the lower guide rail 113, and the matching upper guide groove 414 and lower guide groove 415 can ensure that the connector 41 and the take-up and take-down bracket 21 slide stably in a straight line.
[0049] To ensure that the adjusting screw 42 can be stably assembled in the mounting bracket 1 and achieve a rotary connection with the connector 41, the following technical solution is provided.
[0050] The two sets of side plates 12 of the mounting bracket 1 are fixedly connected to the connecting plate 121. The adjusting screw 42 is rotatably mounted on the connecting plate 121. The connecting piece 41 also includes a rotating seat 416 fixedly connected to the upper positioning plate 411. The rotating seat 416 is rotated with the adjusting screw 42.
[0051] The connection plate 121 ensures that the adjusting screw 42 is stably installed in a relatively rotating posture, and the rotary joint 416 provided on the connector 41 can be rotaryly connected with the adjusting screw 42, thereby driving the connector 41 to run stably in a straight line by the rotating adjusting screw 42.
[0052] To ensure that the fixed bracket 22 can be stably installed on the mounting bracket 1, and to ensure that the fixed bracket 22 and the take-up bracket 21 or two sets of take-up brackets 21 can stably clamp the cylindrical bar, the following technical solution is provided.
[0053] A pad 13 is arranged between the fixed bracket 22 and the base plate 11 of the mounting bracket 1. The fixed bracket 22 and the retractable bracket 21 are arranged at the same horizontal position. Vertically arranged clamps 23 are fixed to the outer ends of both the fixed bracket 22 and the retractable bracket 21.
[0054] The pad strip 13 can adjust the height of the fixed bracket 22, thereby ensuring that the fixed bracket 22 and the retractable bracket 21 are set at the same horizontal position. The fixed bracket 22, the pad strip 13 and the base plate 11 of the mounting bracket 1 are fixed together by bolts, which facilitates their assembly and disassembly.
[0055] The clamping plates 23 provided on the fixed bracket 22 and the take-up and put-down bracket 21 along the vertical direction can ensure effective clamping of both ends of the cylindrical bar.
[0056] To ensure that the clamping device can be stably assembled on the moving parts of the stacking or transfer equipment, and that the stacking or transfer equipment drives the clamping device and the clamped cylindrical bar to perform transfer or stacking operations, while ensuring that the drive motor 3 is stably assembled on the mounting bracket 1, the following technical solution is provided.
[0057] A connecting frame 14 is fixedly connected to the middle section of the mounting bracket 1. The connecting frame 14 has an assembly through hole 141. The drive motor 3 is fixedly installed in the connecting frame 14. A drive bevel gear 31 is fixedly connected to the output shaft of the drive motor 3. A transmission bevel gear 421 is fixedly connected to the inner end of the adjusting screw 42. The transmission bevel gear 421 and the drive bevel gear 31 are engaged.
[0058] The connecting frame 14 is also cut from channel steel and welded to the side plate 12 of the mounting bracket 1 to form a unified whole. The assembly through hole 141 provided on it can be connected to the transfer or stacking equipment through bolt assembly, and the transfer or stacking equipment drives the clamping device to operate.
[0059] When the drive motor 3 is running, it can drive the drive bevel gear 31 to rotate, which in turn drives the transmission bevel gear 421 and the adjusting screw 42 to operate stably.
[0060] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0061] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A clamping device for clamping stacked cylindrical bars one by one, characterized in that: Includes a mounting bracket (1) and a take-up bracket (21) assembled on the mounting bracket (1), a drive motor (3) and a transmission assembly. The take-up bracket (21) is arranged along the length direction of the mounting bracket (1). At least one set of the take-up bracket (21) is provided. When one set of take-up brackets (21) is provided, a fixed bracket (22) is also fixedly installed on the mounting bracket (1). The fixed bracket (22) is arranged along the length direction of the mounting bracket (1). Each of the above-mentioned take-up and take-down brackets (21) is equipped with the transmission assembly, which includes a connector (41) and an adjusting screw (42). The connector (41) is slidably installed on the mounting bracket (1) and moves along the length of the mounting bracket (1). The take-up and take-down bracket (21) is fixedly connected to the lower part of the connector (41). The adjusting screw (42) is rotatably installed in the mounting bracket (1) and is kept in a screwed connection with the adjusting screw (42). The drive motor (3) is fixedly installed in the middle of the mounting bracket (1), and the output shaft of the drive motor (3) is connected to the adjusting screw (42) in each group of the transmission components.
2. The clamping device for clamping stacked cylindrical bars one by one according to claim 1, characterized in that: The mounting bracket (1) includes a base plate (11) and side plates (12) fixed to both sides of the base plate (11). The base plate (11) has two sets of strip-shaped through grooves (111) arranged in the same straight direction. The upper and lower surfaces of the base plate (11) are respectively fixed with an upper guide rail (112) and a lower guide rail (113). The upper guide rail (112) and the lower guide rail (113) are both arranged on both sides of the strip-shaped through grooves (111). The connector (41) includes an upper positioning plate (411), a lower positioning plate (412), a connecting seat (413), an upper guide groove (414), and a lower guide groove (415). The connecting seat (413) is fixed between the upper positioning plate (411) and the lower positioning plate (412). The connecting seat (413) is arranged in the strip-shaped through groove (111). The upper guide groove (414) is fixedly installed at the bottom of the upper positioning plate (411) and slidably inserted into the upper guide rail (112). The lower guide groove (415) is fixedly installed at the top of the lower positioning plate (412) and slidably inserted into the lower guide rail (113). The retractable bracket (21) is fixedly installed at the bottom of the lower positioning plate (412).
3. The clamping device for clamping stacked cylindrical bars one by one according to claim 2, characterized in that: The two sets of side plates (12) of the mounting bracket (1) are fixedly connected to the connecting plate (121). The adjusting screw (42) is rotatably mounted on the connecting plate (121). The connecting piece (41) also includes a rotating seat (416) fixedly connected to the upper positioning plate (411). The rotating seat (416) is rotatably connected to the adjusting screw (42).
4. The clamping device for clamping stacked cylindrical bars one by one according to claim 2, characterized in that: A pad (13) is arranged between the fixed bracket (22) and the base plate (11) of the mounting bracket (1). The fixed bracket (22) and the retractable bracket (21) are arranged at the same horizontal position. Vertically arranged clamps (23) are fixed to the outer ends of both the fixed bracket (22) and the retractable bracket (21).
5. The clamping device for clamping stacked cylindrical bars one by one according to claim 1, characterized in that: A connecting frame (14) is fixedly connected to the middle section of the mounting bracket (1). The connecting frame (14) has an assembly through hole (141). The drive motor (3) is fixedly installed in the connecting frame (14). A drive bevel gear (31) is fixedly connected to the output shaft of the drive motor (3). A transmission bevel gear (421) is fixedly connected to the inner end of the adjusting screw (42). The transmission bevel gear (421) and the drive bevel gear (31) are engaged.