Clamping equipment with double limiting function
By designing a clamping device with dual limit positions and utilizing a combination structure of reverse lead screw and rubber layer, the problem of press lacking quick docking fixtures and multiple workpiece fixing is solved, realizing the rapid and accurate assembly of gears with shafts or bearings, and improving assembly efficiency and equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-20
AI Technical Summary
In the existing technology, presses lack fixtures for quick docking, and most presses cannot fix multiple workpieces at the same time, resulting in inaccurate positioning of gears and bearings or shafts during assembly, requiring repeated adjustments.
A clamping device with dual limiting is designed, including a mounting panel, a reverse lead screw, and a clamping component. Through the combination structure of U-shaped connector, steering support rod, and positioning column, the device achieves rapid docking and stable clamping of gears with shafts or bearings. The transmission accuracy of the reverse lead screw and the increase of friction by the rubber layer ensure assembly accuracy.
It enables rapid and accurate assembly of gears with shafts or bearings, reduces repeated debugging processes, improves assembly efficiency, ensures the stability and precision of equipment operation, and avoids workpiece damage.
Smart Images
Figure CN224012173U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electromechanical equipment installation technical field, concretely is clamping equipment of double limit. BACKGROUND
[0002] Electromechanical equipment installation is the process that various electromechanical equipment is correctly installed in the predetermined position and is debugged according to design requirement and relevant standard specification, in electromechanical equipment, the combination of gear and related components is the common transmission structure, and the installation quality of these components directly influences the overall performance and operating stability of electromechanical equipment, and the installation of gear and rod is also important, in some special mechanical structures, such as certain space connecting rod mechanism or specific motion conversion device, their installation precision will influence the motion precision and mechanical property of equipment.
[0003] At present, the installation of gear and shaft, rod or bearing usually relies on press or manual installation, in order to ensure the precision and operating safety of installation, it is necessary to fix workpiece by means of fixture in the installation process, regardless of the implementation of any installation mode.
[0004] The inventor finds the following problems in the prior art in the process of realizing the utility model: 1, the current part of press cannot realize the function of fixing workpiece, and even if it is possible, only one workpiece can be fixed, for example, gear, when it is assembled with bearing or shaft rod, only the gear can be fixed, whether it is press or manual installation, the workpiece for assembly needs to be kept in a fixed position during installation, but due to the lack of such structure, the upper shaft rod moves during assembly, which may cause inaccurate installation position of gear; 2, and lack of fixture for quick docking on the press, which may need repeated debugging to ensure the effective docking of the pressure end and the fixture fixing area. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing clamping equipment of double limit to solve the problems of lacking fixture for quick docking on the press and most presses lacking the function of clamping workpiece or only being able to fix single workpiece in the background art. In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: clamping equipment of double limit, including installation panel, the inside rotation of installation panel is connected with first reverse screw rod, the outer wall of installation panel is slidably connected with first clamping piece, the top of installation panel is rotatably connected with external positioning assembly, the other end of the top of installation panel is provided with limiting slot, the inside of limiting slot is slidably connected with mobile stand, the one end of mobile stand is rotatably connected with extension frame, the inside of extension frame is rotatably connected with second reverse screw rod, the outer wall of extension frame is slidably connected with second clamping piece.
[0006] The outer positioning assembly comprises a U-shaped connecting piece, a steering support rod and a positioning column, the U-shaped connecting piece is rotationally connected to the top of the mounting panel, one end of the steering support rod is glued to the recessed inner wall between the U-shaped connecting piece, and the other end of the steering support rod is rotationally connected with the positioning column at the top.
[0007] Further preferably, the top of the mounting panel is provided with a slot for rotationally connecting the U-shaped connecting piece, one side of the slot is in an arc structure, and the steering support rod is rotationally connected with the slot at the top of the mounting panel through the U-shaped connecting piece and is located at the top of the first clamping piece.
[0008] Further preferably, the positioning column is composed of an inner sleeve rod and an outer sleeve rod and is in an extension state, the positioning column is rotationally connected with the steering support rod, and the center point between the axis point of the positioning column and the first clamping piece is located on the same vertical center line.
[0009] Further preferably, the first clamping pieces are symmetrically distributed, the first clamping pieces are integrally connected with reverse nuts threadedly connected to the outer wall of the first reverse lead screw at both ends, and the first clamping pieces are relatively moved through the first reverse lead screw.
[0010] Further preferably, the second clamping pieces are located above the first clamping pieces, the second clamping pieces are integrally connected with reverse nuts threadedly connected to the outer wall of the second reverse lead screw at both ends, and the second clamping pieces relatively move through the second reverse lead screw, and the inner wall of the first clamping piece and the second clamping piece is covered with a rubber layer.
[0011] Further preferably, one side of the slot for rotationally connecting the extension frame of the movable stand is a non-penetrating type, and the second clamping pieces are rotationally connected with the extension frame at one end of the movable stand and above the first clamping pieces in a 90-degree horizontal rotation structure.
[0012] Further preferably, the movable stand is provided with a sliding block embedded in the limiting slot at the bottom for sliding connection, the sliding block is threadedly connected with a fastening screw penetrating through the sliding block, and the bottom of the limiting slot is provided with a clamping groove in an arc shape for clamping connection with the bottom shaft of the fastening screw.
[0013] Compared with the prior art, the utility model has the advantages of:
[0014] The special designed notch on the mounting panel guarantees the rotation of the U-shaped connecting piece, the steering support rod and the positioning column, and through the extension and rotation, the accurate butt joint with the pressure applying end of the external pressure equipment can be quickly realized, the tedious process of repeated adjustment of the traditional clamp is reduced, the first reverse lead screw has high transmission precision, the relative synchronization of the first clamping piece is guaranteed, different size gear workpieces can be stably clamped and the axial point is guaranteed not to be displaced, the continuous and effective butt joint with the pressure applying end of the external pressure equipment is guaranteed, the second clamping piece can clamp the shaft rod or the bearing, in the process of high-precision transmission assembly, the positioning of the gear and the shaft rod or the bearing two key components is completed at one time, and the assembly efficiency is improved.
[0015] In the utility model, the rotating structure of the extension frame makes the second clamping piece be removed from the top of the first clamping piece, and the subsequent workpiece is conveniently put in by the operator, the non-through notch on the movable stand limits the rotating distance of the extension frame, and excessive rotation is prevented, through the sliding of the movable stand and the rotation of the extension frame, the second clamping piece can be flexibly adjusted in position in space, and the work of the first clamping piece is coordinated, the top pressure applying end is effectively pressed, and enough space is ensured for placing the workpiece, meanwhile, the rubber layer in the inner wall of the first clamping piece and the second clamping piece increases the friction and enhances the clamping force, meanwhile, the scratch and damage to the outer wall of the workpiece are avoided, and the stability of equipment operation is guaranteed. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the front view structure schematic diagram of the utility model;
[0017] Figure 2 It is the internal structure schematic diagram of the mounting panel of the utility model;
[0018] Figure 3 It is the structure schematic diagram of the external positioning assembly of the utility model;
[0019] Figure 4 It is the structure schematic diagram of the limiting groove of the utility model;
[0020] Figure 5 It is the internal structure schematic diagram of the extension frame of the utility model.
[0021] In the drawing, 1, mounting panel, 2, first reverse lead screw, 3, first clamping piece, 4, external positioning assembly, 401, U-shaped connecting piece, 402, steering support rod, 403, positioning column, 5, limiting groove, 6, movable stand, 7, extension frame, 8, second reverse lead screw, 9, second clamping piece, 10, fastening screw. DETAILED DESCRIPTION
[0022] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.
[0023] Please refer to Figures 1 to 5 The present application provides a technical solution: double-limiting clamping equipment, comprising a mounting panel 1, the inside of the mounting panel 1 is rotatably connected with a first reverse lead screw 2, the outer wall of the mounting panel 1 is slidably connected with a first clamping piece 3, one end of the top of the mounting panel 1 is rotatably connected with an external positioning assembly 4, the other end of the top of the mounting panel 1 is provided with a limiting groove 5, the inside of the limiting groove 5 is slidably connected with a movable stand 6, one end of the movable stand 6 is rotatably connected with an extension frame 7, the inside of the extension frame 7 is rotatably connected with a second reverse lead screw 8, the outer wall of the extension frame 7 is slidably connected with a second clamping piece 9.
[0024] The external positioning assembly 4 comprises a U-shaped connecting piece 401, a steering strut 402 and a positioning column 403, the U-shaped connecting piece 401 is rotatably connected to the top of the mounting panel 1, one end of the steering strut 402 is glued to the concave inner wall of the U-shaped connecting piece 401, and the other end of the steering strut 402 is rotatably connected with the positioning column 403 at the top.
[0025] In the embodiment, as shown in the figure, Figure 3 The top of the mounting panel 1 is provided with a notch for rotatably connecting the U-shaped connecting piece 401, one side of the notch is arc-shaped, the steering strut 402 is rotatably connected with the notch at the top of the mounting panel 1 through the U-shaped connecting piece 401 and is located at the top of the first clamping piece 3; first, the special notch shape at the top of the mounting panel 1 for rotating the U-shaped connecting piece 401 can effectively ensure that the steering strut 402 always maintains a 90-degree rotation through the U-shaped connecting piece 401, and the parallel fit with the top of the mounting panel 1 is realized by using this rotating structure to achieve the purpose of folding.
[0026] In the embodiment, as shown in the figure, Figure 1 And Figure 3As shown, the positioning column 403 is composed of an inner and outer sleeve rod and constitutes a telescopic shape, and the positioning column 403 constitutes horizontal rotation through the steering support rod 402, and the center point between the axis point of the positioning column 403 and the first clamping piece 3 is located on the same vertical center line; when the mounting panel 1 is mounted on the external pressure equipment, in order to ensure the effective docking of the subsequent pressure end and the workpiece, the U-shaped connecting piece 401 is rotated in advance, and the steering support rod 402 will drive the positioning column 403 to rotate accordingly. When the positioning column 403 is horizontally rotated, it can be vertically erected again through the rotary connection of the steering support rod 402, and the telescopic structure can extend its length, thereby facilitating the docking with the pressure end of the pressure equipment, and the docking of the axis point of the positioning column 403 and the axis point of the pressure end of the external pressure equipment can be realized with the help of external measuring tools. Since the center point between the axis point of the positioning column 403 and the first clamping piece 3 is consistent, the subsequent first clamping piece 3 can accurately dock with the pressure end when fixing the workpiece, compared with the current clamp structure, it can quickly realize accurate docking with the external pressure equipment, and reduces the tedious process of repeated adjustment.
[0027] In the embodiment, as shown in Figure 1 and Figure 2 , the first clamping pieces 3 are symmetrically distributed between them, and the first clamping pieces 3 are integrally connected with the reverse nuts threaded at both ends of the outer wall of the first reverse lead screw 2, and the first clamping pieces 3 are relatively moved through the first reverse lead screw 2. Since the mounting panel 1 is determined in the fixed position of the pressure equipment through the external positioning assembly 4, the entire clamping device is fixed and reliable in the working environment, and the transmission accuracy of the first reverse lead screw 2 effectively guarantees the synchronization of the relative transmission of the first clamping piece 3, which can approach the workpiece from both sides at the same speed and the same distance, so that it can realize the purpose of clamping different gear workpieces through this transmission structure. Since this transmission structure can effectively clamp different gear workpieces, whether it is a large size or a small size gear, it can be stably clamped without displacement of the axis point, thereby ensuring the continuous and effective docking with the pressure end of the external pressure equipment, and the first clamping piece 3 is made of steel material and has a certain strength.
[0028] In the embodiment, as shown in Figure 1 and Figure 5As shown, the second clamping member 9 is located above the first clamping member 3, and the second clamping members 9 are all integrally connected to the reverse nuts threaded at both ends of the outer wall of the second reverse screw 8. The semi-circular second clamping members 9 move relative to each other through the second reverse screw 8. Simultaneously, the inner walls of both the first clamping member 3 and the second clamping member 9 are covered with a rubber layer. Unlike current fixtures that can only fix a single gear workpiece, by adding the second clamping member 9, the shaft or bearing that is mated with the gear can be clamped. This is crucial because in some high-precision gearbox assembly processes, it is necessary not only to fix the gear but also to ensure the shaft is in a stable position. In a fixed position, this multi-functional clamping structure can complete the positioning of two key components at once, improving assembly efficiency. The second clamping member 9 also moves relative to the first clamping member 3 through the transmission structure of the second reverse lead screw 8. Its semi-circular shape can better fit with the outer surface of the circular shaft. Furthermore, the inner walls of both the first clamping member 3 and the second clamping member 9 are covered with a rubber layer, which can effectively avoid scratches and damage to the outer wall of the workpiece, and also increase friction and improve clamping force. In particular, the tooth shape of the gear outer wall is complex, and the rubber layer can better fill the gaps between the teeth, increase the contact area, and thus improve the friction.
[0029] In this embodiment, as Figure 5 As shown, the slot on one side of the movable stand 6 for rotating connection of the extension frame 7 is non-through, and the second clamping member 9 has a 90-degree horizontal rotation structure at one end of the movable stand 6 and above the first clamping member 3 via the extension frame 7; the rotation structure of the extension frame 7 allows the second clamping member 9 to be removed from the top of the first clamping member 3, which allows the operator to quickly and unobstructedly put in the workpiece to be assembled next after each assembly is completed, and the non-through slot on the movable stand 6 effectively limits the rotation distance of the extension frame 7 and prevents the extension frame 7 from rotating excessively.
[0030] In this embodiment, as Figure 4 and Figure 5As shown, the mobile stand 6 is provided with a sliding block embedded in the limiting groove 5 for sliding connection, and the sliding block is penetrated by a fastening screw 10 and is threadedly connected with the fastening screw 10, and the bottom of the limiting groove 5 is provided with an arc-shaped clamping groove for clamping connection with the bottom shaft head of the fastening screw 10; first, the transmission direction between the first clamping piece 3 and the second clamping piece 9 needs to be coordinated, and in the assembly process, it is necessary to ensure that the top pressing end can effectively apply pressure to the workpiece, and it is also necessary to ensure that there is enough space to place the workpiece, so that the second clamping piece 9 can be flexibly adjusted in space by the sliding of the mobile stand 6 and the rotating structure of the extension frame 7, so that it can accurately cooperate with the first clamping piece 3. The mobile stand 6 slides in the limiting groove 5 through the bottom sliding block, and the operator can accurately adjust the mobile stand 6 according to the actual assembly requirement to ensure the position of the second clamping piece 9 above, and when the mobile stand 6 is adjusted to the appropriate position, the bottom shaft head will be clamped with the clamping groove at the bottom of the limiting groove 5 in the process of rotating the fastening screw 10 threadedly connected with the sliding block, thereby ensuring the positioning of the mobile stand 6, and since the specifications of the workpieces processed in each batch are consistent, the mobile stand 6 does not need to be repeatedly moved.
[0031] The use method and advantages of the utility model are as follows:
[0032] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, first install the mounting panel 1 to the external pressure equipment, in this process, the use of external positioning components 4 to achieve accurate docking, first, rotate the U-shaped connector 401 at the top of the mounting panel 1, the notch at the top of the mounting panel 1 for connecting the U-shaped connector 401 effectively ensures the rotation angle of the U-shaped connector 401, so that the steering strut 402 is perpendicular to the mounting panel 1 under this rotating structure, then adjust the positioning column 403 to be vertical by rotating connection with the steering strut 402, and extend the length of the telescopic structure composed of the inner and outer sleeves to make it butt joint with the pressure end of the external pressure equipment, with the help of external measuring tools, the butt joint of the shaft center point of the positioning column 403 and the shaft center point of the pressure end of the external pressure equipment is realized, after the accurate butt joint point, the external connector is fixed through the mounting hole at both ends of the mounting panel 1 and the operating table of the external pressure equipment, and the steering strut 402 is reversed again by rotating the U-shaped connector 401, so that it is horizontally attached to the top of the mounting panel 1, and the positioning column 403 is folded and turned over to make it parallel to the top of the steering strut 402. Before assembly, first place the gear workpiece between the first clamping members 3, start the power first reverse lead screw 2, the reverse nuts at both ends drive the first clamping members 3, based on the transmission accuracy of the first reverse lead screw 2, the relative transmission synchronism of the first clamping members 3 can be guaranteed, they will approach the gear workpiece from both sides at the same speed and the same distance, whether the gear workpiece is large or small, this transmission structure can stably clamp the gear workpiece without displacement of the shaft center point, and the shaft or bearing to be assembled with the gear is inserted into the gear aperture, and the position of the movable stand 6 is adjusted according to the specifications of each batch of workpieces. Before adjustment, to ensure quick and effective butt joint, first rotate the extension frame 7 to make it rotate to the same horizontal position as the movable stand 6, while the range between the second clamping members 9 at this time is the maximum distance distribution, and the operator rotates the fastening screw 10 installed on the slider above the limiting groove 5 at the bottom of the movable stand 6, which is separated from the slider through the thread structure and moves the movable stand 6 to the appropriate range, and then the fastening screw 10 penetrates and threadedly connects the slider. During rotation, the shaft head at the bottom will be clamped with the clamping groove at the bottom of the limiting groove 5, after starting the power, the second clamping members 9 move relative to each other through the second reverse lead screw 8, and approach the shaft or bearing from both sides. It should be noted that when installing the shaft, the second clamping members 9 are always clamped on the outer wall of the shaft to ensure that the shaft maintains a stable position and posture during penetration of the gear, and when assembling the bearing, the installation depth of the bearing in the gear through hole may be different. The operator judges the bearing installation depth according to the actual scene and timely drives the power to make the second reverse lead screw 8 reverse to drive the second clamping members 9 to separate from both ends of the bearing, avoiding damage to the bearing due to positional interference.
[0033] The basic principle, main features and advantages of the present application are shown and described above. The technical personnel in the industry should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A clamping device with dual limiting capability, including a mounting panel (1), characterized in that: The mounting panel (1) is rotatably connected to a first reverse screw (2), and the outer wall of the mounting panel (1) is slidably connected to a first clamping member (3). One end of the top of the mounting panel (1) is rotatably connected to an external positioning component (4), and the other end of the top of the mounting panel (1) is provided with a limiting groove (5). The inside of the limiting groove (5) is slidably connected to a movable stand (6), and one end of the movable stand (6) is rotatably connected to an extension frame (7). The inside of the extension frame (7) is rotatably connected to a second reverse screw (8), and the outer wall of the extension frame (7) is slidably connected to a second clamping member (9). The external positioning component (4) includes a U-shaped connector (401), a steering rod (402), and a positioning post (403). The U-shaped connector (401) is rotatably connected to the top of the mounting panel (1). One end of the steering rod (402) is glued to the concave inner wall of the U-shaped connector (401), and the top of the other end of the steering rod (402) is rotatably connected to the positioning post (403).
2. The clamping device with dual limiting capability according to claim 1, characterized in that: The top of the mounting panel (1) has a slot for rotating the U-shaped connector (401), and one side of the slot has an arc-shaped structure. The steering rod (402) rotates horizontally at 90 degrees with the slot through the U-shaped connector (401) and is located on the top of the first clamping member (3).
3. The clamping device with dual limiting capability according to claim 1, characterized in that: The positioning post (403) is composed of inner and outer rods and is telescopic. The positioning post (403) rotates horizontally through the steering support rod (402). The center point of the positioning post (403) and the center point of the first clamping member (3) are located on the same vertical center line.
4. The clamping device with dual limiting capability according to claim 1, characterized in that: The first clamping members (3) are symmetrically distributed, and each of the first clamping members (3) is connected to the reverse nuts threaded at both ends of the outer wall of the first reverse screw (2) in an integral connection, and the first clamping members (3) move relative to each other through the first reverse screw (2).
5. The clamping device with dual limiting capability according to claim 1, characterized in that: The second clamping member (9) is located above the first clamping member (3), and the second clamping members (9) are all connected in an integral manner with the reverse nuts threaded to both ends of the outer wall of the second reverse screw (8). The semi-circular second clamping members (9) move relative to each other through the second reverse screw (8). At the same time, the inner walls of the first clamping member (3) and the second clamping member (9) are covered with a rubber layer.
6. The clamping device with dual limiting capability according to claim 1, characterized in that: The slot of the movable stand (6) for rotating connection of the extension frame (7) is non-through, and the second clamping member (9) rotates horizontally at 90 degrees above the first clamping member (3) at one end of the movable stand (6) and above the first clamping member (3) via the extension frame (7).
7. The clamping device with dual limiting capability according to claim 1, characterized in that: The bottom of the movable support frame (6) has a slider for embedding in the sliding connection limiting groove (5), and the slider is threaded through and connected to a fastening screw (10). The bottom of the limiting groove (5) has a slot for engaging the bottom shaft head of the fastening screw (10) which is arc-shaped.