Automobile part self-centering clamping transport frame

Abstract

The utility model discloses a kind of automobile parts self-centering clamping transport frame, including the support frame of column and crossbeam, first rotation shaft is rotationally arranged in column, second rotation shaft is rotationally arranged in crossbeam, and both are meshing transmission by first driving bevel gear and first driven bevel gear. Self-centering clamping assembly is equipped on crossbeam, second driving bevel gear on second rotation shaft is meshed with second driven bevel gear in assembly and drives its action. Assembly includes sleeve, threaded rod, nut, connecting rod and three circumferentially distributed clamping plates, threaded rod is driven nut to move, so that connecting rod drives clamping plate radial movement to realize self-centering. First rotation shaft is connected with hand wheel through worm gear, realizes deceleration and self-locking. Support frame bottom is equipped with universal wheel, also equipped with trash box and handle. The device can synchronously drive multiple assemblies, self-centering is accurate, labor-saving, adapt to different cylindrical workpieces, improve transportation stability and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of transportation equipment technology, specifically to a self-centering clamping and transport frame for automotive parts. Background Technology

[0002] In the manufacturing and processing of automotive parts, the transportation and transfer of cylindrical workpieces (such as cylinder liners) is a crucial step. Currently, the transfer of these workpieces in workshops mostly uses simple frames, hooks, or ordinary pallets, which presents several problems:

[0003] Some devices simply place workpieces by hanging or stacking them, lacking an effective fixing structure. During transportation, the workpieces are prone to collision and wear due to vibration and shaking, affecting product quality. Even devices with clamping functions often require manual adjustment of each clamping component, which is cumbersome and inefficient, especially during batch transfers.

[0004] In addition, the power transmission structure design of traditional clamping devices is unreasonable. They either rely on multiple independent power sources to drive different clamping components, resulting in high equipment costs, complex maintenance, and the components are prone to asynchronous operation due to differences in power output, affecting clamping stability; or the clamping components are fixed in position, making it difficult to adapt to cylindrical workpieces of different diameters, resulting in poor versatility and the need for frequent tooling changes, further reducing production efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a self-centering clamping and transport rack for automotive parts to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A self-centering clamping and transport frame for automotive parts includes a support frame. The support frame includes two columns and several crossbeams. A first rotating shaft is rotatably arranged in the columns, and a second rotating shaft is rotatably arranged in the several crossbeams. Several first driving bevel gears are fixedly arranged on the first rotating shafts, and several first driven bevel gears are fixedly arranged at one end of the second rotating shafts. The first driving bevel gears mesh with the first driven bevel gears for transmission.

[0008] The crossbeam is provided with several self-centering clamping components, and the second rotating shaft is fixedly provided with several second driving bevel gears. The movement of the self-centering clamping components is driven by the second driving bevel gears on the second rotating shaft.

[0009] Preferably, the self-centering clamping assembly includes a sleeve fixedly mounted on a crossbeam, a plurality of first connecting rods rotatably mounted on the side wall of the sleeve, a threaded rod rotatably mounted in the sleeve, a nut fitted on the threaded rod, a plurality of second connecting rods rotatably mounted on the side wall of the nut, and a clamping plate rotatably mounted at the other end of the first connecting rods and the second connecting rods. The threaded rod drives the nut to move linearly along the axis of the sleeve, thereby realizing the linear movement of the clamping plate along the radial direction of the sleeve.

[0010] A second driven bevel gear is fixedly provided at one end of the threaded rod, and the second driven bevel gear meshes with the second driving bevel gear.

[0011] Preferably, a worm gear is fixedly mounted on the first rotating shaft, and a worm is rotatably mounted on the column, with the worm gear meshing with the worm for transmission.

[0012] Preferably, a handwheel is fixedly mounted on the shaft of the worm gear, and a rotating rod is rotatably mounted on the handwheel.

[0013] Preferably, a handle is fixedly installed on the column.

[0014] Preferably, an elastic pad is fixedly provided on the clamping plate.

[0015] Preferably, the bottom of the support frame is fixedly provided with several casters, and the support frame is provided with a detachable sludge collection box.

[0016] Preferably, the self-centering clamping assembly has three clamping plates, and the self-centering clamping assembly and the crossbeam are arranged on the column at an angle.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. Power is input via the handwheel, and speed reduction, torque increase, and self-locking are achieved through worm gear transmission. Only a small operating force is required to drive the first rotating shaft to rotate. Then, the power is distributed to all self-centering clamping components through two-stage bevel gear transmission, ensuring that multiple components operate synchronously. This greatly reduces the operation steps and time for clamping batch workpieces and improves work efficiency. The self-locking characteristic of the worm gear can prevent accidental loosening and ensure clamping stability.

[0019] 2. This device uses three clamping plates evenly distributed along the circumference of the sleeve, combined with a parallelogram linkage structure, which can automatically adapt to the center of the cylindrical workpiece to achieve precise self-centering clamping without the need for repeated manual alignment; the elastic pad can buffer the clamping force and avoid damage to the workpiece surface, making it suitable for cylindrical automotive parts of different diameters. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the overall device of this utility model;

[0021] Figure 2 This is a schematic diagram of the meshing of the first driving bevel gear and the first driven bevel gear of this utility model;

[0022] Figure 3 This is a schematic diagram of the meshing of the second driving bevel gear and the second driven bevel gear of this utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the second active bevel gear and self-centering clamping assembly of this utility model;

[0024] Figure 5 This is a schematic diagram of the internal three-dimensional structure of the self-centering clamping component of this utility model.

[0025] In the diagram: 1. Support frame; 11. Column; 111. First rotating shaft; 1111. First driving bevel gear; 112. Worm gear; 113. Worm; 114. Handwheel; 115. Rotating rod; 116. Handle; 12. Crossbeam; 121. Second rotating shaft; 122. First driven bevel gear; 123. Second driving bevel gear; 124. Self-centering clamping assembly; 1241. Sleeve; 1242. First connecting rod; 1243. Threaded rod; 1244. Nut; 1245. Second connecting rod; 1246. Clamping plate; 1247. Second driven bevel gear; 1248. Elastic pad; 13. Caster wheel; 14. Sludge collection box. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-5 This utility model provides a technical solution:

[0028] This self-centering clamping and transport frame for automotive parts uses a support frame 1 as its basic load-bearing structure. The support frame 1 consists of two opposing columns 11 and several crossbeams 12 connecting the two columns 11, forming a stable frame. Several support rods are also provided on the columns 11 to reinforce them.

[0029] Inside the column 11, a first rotating shaft 111, rotatable about its own axis, is installed via bearings. Correspondingly, inside the crossbeam 12, a second rotating shaft 121, also rotatably connected, is arranged. Several first driving bevel gears 1111 are fixedly sleeved along the axial direction on the first rotating shaft 111. At the end of the second rotating shaft 121 (near the first rotating shaft 111), a first driven bevel gear 122 adapted to the first driving bevel gears 1111 is fixedly sleeved, and the teeth of the first driving bevel gear 1111 and the teeth of the first driven bevel gear 122 mesh with each other to form a bevel gear transmission pair, realizing the power transmission between the first rotating shaft 111 and the several second rotating shafts 121.

[0030] On the upper part of the crossbeam 12, a number of self-centering clamping assemblies 124 are arranged along its length; at the same time, on the second rotating shaft 121, a second driving bevel gear 123 corresponding to the number of self-centering clamping assemblies 124 is fixedly installed along its axis. The second driving bevel gear 123 serves as a power output end and cooperates with the second driven bevel gear 1247 of the self-centering clamping assembly 124 to drive the self-centering clamping assembly 124 to perform clamping actions.

[0031] At the bottom of the support frame 1, several casters 13 are fixedly installed by bolts to enable the movement of the transport frame; the support frame 1 is also equipped with a detachable dirt collection box 14 (which can be connected to the support frame 1 by means of slots, hooks and other structures) to collect fallen dirt and debris.

[0032] The outer wall of the column 11 is welded with a handle 116 for easy pushing and pulling by the operator; a worm gear 112 is fixedly installed on the first rotating shaft 111, and a worm 113 is installed on the column 11 at the position corresponding to the worm gear 112 through a rotating connection structure. The teeth of the worm gear 112 and the worm 113 mesh to form a worm gear 112-worm 113 transmission pair, and the shaft end of the worm 113 is fixedly connected to a handwheel 114. A rotating rod 115 is also rotatably mounted on the handwheel 114 to assist in applying force to rotate the handwheel 114.

[0033] The self-centering clamping assembly 124 uses a sleeve 1241 as its base carrier, which is fixed to the crossbeam 12 by welding. A first connecting rod 1242 is rotatably mounted on the side wall of the sleeve 1241; a threaded rod 1243 is rotatably provided in the internal space of the sleeve 1241; a nut 1244 that can move along its axis is fitted on the outer circumferential surface of the threaded rod 1243; several second connecting rods 1245 are hinged to the side wall of the nut 1244; the ends of the first connecting rods 1242 and the second connecting rods 1245 away from the sleeve 1241 and the nut 1244 are hinged together on the clamping plate 1246 to form a linkage structure. It should be noted that every two first connecting rods 1242, the sleeve 1241 and the clamping plate 1246 form a parallelogram structure. Therefore, when the first connecting rods 1242 rotate, they can drive the clamping plate 1246 away from or towards the sleeve 1241. One end of the threaded rod 1243 is fixedly connected to a second driven bevel gear 1247, which meshes with the teeth of the second driving bevel gear 123 to form a bevel gear transmission pair. Furthermore, an elastic pad 1248 is fixed to the side of the clamping plate 1246 facing the workpiece to buffer the clamping force and prevent damage to the workpiece. The self-centering clamping assembly 124 and the crossbeam 12 are mounted on the column 11 in an inclined posture. Three clamping plates 1246 are set at 120-degree intervals and are evenly distributed along the circumference of the sleeve 1241. Utilizing the point-centering principle, self-centering clamping of cylindrical workpieces is achieved.

[0034] When it is necessary to clamp and fix automotive parts, the operator turns the handwheel 114, which drives the worm gear 113 to rotate. The worm gear 113 drives the worm wheel 112 and the first rotating shaft 111 to rotate. The first rotating shaft 111 drives the second rotating shaft 121 to rotate through the meshing of the first driving bevel gear 1111 and the first driven bevel gear 122. The second rotating shaft 121 drives the threaded rod 1243 to rotate through the meshing of the second driving bevel gear 123 and the second driven bevel gear 1247. When the threaded rod 1243 rotates, the nut 1244 moves along the axis of the threaded rod 1243, and pushes the first connecting rod 1242 to rotate through the second connecting rod 1245, so that the clamping plate 1246 moves closer to or further away from the workpiece radially along the sleeve 1241. Since there are three clamping plates 1246 and they are evenly distributed, they can automatically adapt to the center of the workpiece and achieve self-centering clamping. During the process, the elastic pad 1248 buffers and protects the workpiece. During transportation, the operator pushes and pulls the handle 116, and moves the transport frame with the casters 13. The sludge collection box 14 catches the falling debris and completes the transportation operation.

[0035] Working principle: When using this utility model, the operator rotates the handwheel 114, which is fixedly connected to the shaft end of the worm gear 113. By applying force through the handwheel 114, the worm gear 113 is directly driven to rotate around its own axis.

[0036] The worm 113 meshes with the worm wheel 112 on the first rotating shaft 111. Utilizing the transmission characteristics of the worm wheel 112 and worm 113, the rotation of the worm 113 is converted into the rotation of the first rotating shaft 111. At the same time, the worm wheel 112 and worm 113 have self-locking and torque-increasing characteristics. Therefore, when rotating the worm 113, only a small force is needed to control the synchronous movement of multiple self-centering clamping components 124, and unnecessary accidental rotation of the first rotating shaft 111 can also be prevented.

[0037] When the first rotating shaft 111 rotates, the first driving bevel gear 1111 fixed on its shaft rotates synchronously. The first driving bevel gear 1111 meshes with the first driven bevel gears 122 at the ends of several second rotating shafts 121, driving the second rotating shafts 121 to rotate around their own axis.

[0038] When the second rotating shaft 121 rotates, the second driving bevel gear 123 fixed on the shaft rotates synchronously, driving the second driven bevel gear 1247 in the self-centering clamping assembly 124 to rotate through tooth meshing.

[0039] The second driven bevel gear 1247 is fixedly connected to one end of the threaded rod 1243, driving the threaded rod 1243 to rotate inside the sleeve 1241; the threaded rod 1243 and the nut 1244 form a helical transmission pair. When the threaded rod 1243 rotates, the nut 1244 moves linearly along the axis of the threaded rod 1243. The radial direction of the nut 1244 is constrained by the second connecting rod 1245. Therefore, when the threaded rod 1243 rotates, it can only move linearly along the axial direction of the threaded rod 1243.

[0040] The second connecting rod 1245 is hinged to the side wall of the nut 1244, and the first connecting rod 1242 is hinged to the side wall of the sleeve 1241. Both are hinged to the clamping plate 1246. When the nut 1244 moves linearly, the first connecting rod 1242 is pushed and pulled around the hinge point of the sleeve 1241 by the second connecting rod 1245, which forces the clamping plate 1246 to move closer to / away from the workpiece radially along the sleeve 1241. The three clamping plates 1246 are evenly distributed around the circumference of the sleeve 1241. Using the principle of triangle centering, they automatically adapt to the center of the workpiece.

[0041] After the workpiece is clamped, the operator pushes and pulls the column 11 by the handle 116, and with the rolling of the universal wheels 13 at the bottom of the support frame 1 (the universal wheels 13 can move in multiple directions), the transport frame is moved as a whole to complete the workpiece transport.

[0042] During transportation, stains and debris that fall from the workpiece are collected by the detachable dirt collection box 14, keeping the transportation environment clean.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automobile part self-centering clamping transport frame comprising a support frame (1), the support frame (1) comprising two uprights (11) and several crossbeams (12), characterized in that: A first rotating shaft (111) is rotatably arranged in the column (11), and a second rotating shaft (121) is rotatably arranged in a plurality of crossbeams (12). A plurality of first driving bevel gears (1111) are fixedly arranged on the first rotating shaft (111), and a plurality of first driven bevel gears (122) are fixedly arranged at one end of the second rotating shaft (121). The first driving bevel gears (1111) and the first driven bevel gears (122) mesh and transmit power. The crossbeam (12) is provided with a number of self-centering clamping components (124), and the second rotating shaft (121) is fixedly provided with a number of second active bevel gears (123). The movement of the self-centering clamping components (124) is driven by the second active bevel gears (123) on the second rotating shaft (121).

2. The self-centering clamping transport frame for automobile parts according to claim 1, characterized in that: The self-centering clamping assembly (124) includes a sleeve (1241) fixedly mounted on a crossbeam (12). A plurality of first connecting rods (1242) are rotatably mounted on the side wall of the sleeve (1241). A threaded rod (1243) is rotatably mounted in the sleeve (1241). A nut (1244) that mates with the threaded rod (1243) is mounted on the threaded rod (1243). A plurality of second connecting rods (1245) are rotatably mounted on the side wall of the nut (1244). A clamping plate (1246) is rotatably mounted at the other end of the first connecting rod (1242) and the second connecting rod (1245). The threaded rod (1243) drives the nut (1244) to move linearly along the axis of the sleeve (1241), thereby realizing the linear radial movement of the clamping plate (1246) along the sleeve (1241). One end of the threaded rod (1243) is fixedly provided with a second driven bevel gear (1247), which meshes with the second driving bevel gear (123).

3. The self-centering clamping transport frame for automotive parts according to claim 1, characterized in that: A worm wheel (112) is fixedly installed on the first rotating shaft (111), and a worm (113) is rotatably installed on the column (11). The worm wheel (112) and the worm (113) mesh and transmit power.

4. The self-centering clamping transport frame for automotive parts according to claim 3, characterized in that: A handwheel (114) is fixedly mounted on the shaft of the worm (113), and a rotating rod (115) is rotatably mounted on the handwheel (114).

5. The self-centering clamping transport frame for automotive parts according to claim 1, characterized in that: A handle (116) is fixedly installed on the column (11).

6. The self-centering clamping transport frame for automotive parts of claim 2, wherein: An elastic pad (1248) is fixedly provided on the clamping plate (1246).

7. The self-centering clamping transport frame for automotive parts of claim 1, wherein: The bottom of the support frame (1) is fixedly provided with several casters (13), and the support frame (1) is provided with a detachable sludge collection box (14).

8. The self-centering clamping transport frame for automotive parts of claim 2, wherein: The self-centering clamping assembly (124) has three clamping plates (1246), and the self-centering clamping assembly (124) and the crossbeam (12) are arranged on the column (11) in an inclined manner.

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