A quick assembly fixture for a core roller assembly

Abstract

The utility model relates to the field of assembly fixture especially relates to a quick assembly fixture of machine core roller assembly, technical scheme: a quick assembly fixture of machine core roller assembly, including bearing frame and servo type double position assembly structure, servo type double position assembly structure includes the screw rod rotation installation in the inner wall center of the both ends of lifting groove, the isolation board of fixed connection in the inner wall center of the both ends of lifting groove and the two groups of lifting blocks of setting in the lifting groove, the utility model discloses a two independent lifting block and clamping frame are used, and the efficiency is promoted, and the cooperation, three -jaw chuck and left and right two -way clamping system cooperate the three -fold positioning design of guide rail orientation, forcibly make three parts axis coincide, from part positioning to the whole process guaranteeing coaxiality of assembly butt joint, solved the effect and the poor efficiency problem of existing assembly fixture when using assembly machine core roller.

Description

Technical Field

[0001] This utility model belongs to the field of assembly fixtures, and specifically relates to a quick assembly fixture for a movement roller assembly. Background Technology

[0002] The mechanism roller assembly of the swing gate access control system is the core transmission component that controls the opening and closing of the swing gate and ensures safe passage. It mainly consists of three core parts: roller mounting arm, roller disc, and roller shaft pin, as well as auxiliary accessories. Its function is to transmit the power of the mechanism to the gate, while ensuring that the gate runs smoothly and is positioned accurately.

[0003] In existing technologies, most mechanical roller assemblies are supported by assembly fixtures and then manually assembled. Because the mounting arm, disc, and pins require manual alignment, visual misjudgment can easily lead to axis misalignment, affecting subsequent assembly processes such as pin insertion failure, part deformation, and even the smooth operation of the swing gate. Furthermore, most fixtures are single-station, resulting in low assembly efficiency. Therefore, this invention proposes a rapid assembly fixture for mechanical roller assemblies to solve the problems existing in the prior art. Utility Model Content

[0004] To overcome the problem of poor performance and efficiency of existing assembly fixtures when using assembly mechanism rollers.

[0005] The technical solution of this utility model is as follows: a quick assembly fixture for a movement roller assembly, including a support frame and a servo-type dual-station assembly structure. Dustproof shells are installed at the front and rear ends of the support frame, and lifting grooves are opened through the front and rear ends of the support frame. A fixture base is fixedly connected to the lower end of the support frame, and an installation groove is opened at the upper edge of the fixture base. A three-jaw chuck is installed in the installation groove. The servo-type dual-station assembly structure includes a lead screw rotatably installed at the center of the inner wall of the upper and lower ends of the lifting groove, an isolation plate fixedly connected to the center of the inner wall of the left and right ends of the lifting groove, and two sets of lifting blocks set in the lifting groove. Two sets of sliding grooves and one set of screw grooves are symmetrically distributed through the upper and lower ends of the lifting blocks. Lifting frames are fixedly connected to the front and rear ends of the lifting blocks through two sets of connecting shafts. A clamping frame is installed on the lifting frame, and a left and right bidirectional clamping system is installed in the clamping frame. Two sets of guide rails are symmetrically distributed at the inner edges of the upper and lower ends of the two sets of connecting lifting grooves.

[0006] Preferably, the upper and lower ends of the isolation plate are provided with two sets of first through holes and one set of second through holes that are symmetrically distributed from left to right. The second through hole is located between the two sets of first through holes. The guide rail passes through the first through hole and the lead screw passes through the second through hole.

[0007] Preferably, two sets of lifting blocks are distributed on the upper and lower sides of the isolation plate, and the outer wall of the lifting blocks is in contact with the inner wall of the lifting groove.

[0008] Preferably, a servo motor is installed at the center of the upper end of the support frame, and the output end of the servo motor passes through the support frame and is connected to the upper end of the lead screw.

[0009] Preferably, the lead screw is adapted to the screw groove, the outer wall of the guide rail fits against the inner wall of the slide groove, and the screw groove is located between the two sets of slide grooves.

[0010] Preferably, four sets of equidistant limiting grooves are provided through the front and rear ends of the dust cover, and the inner wall of the limiting groove is in contact with the outer wall of the connecting shaft.

[0011] Preferably, the end of the lifting frame near the lifting block is in contact with the end of the dustproof shell away from the support frame, and the centers of the three-jaw chuck and the two sets of left and right bidirectional clamping systems are on the same axis.

[0012] The beneficial effects of this utility model are:

[0013] 1. By adopting two sets of independent lifting blocks and clamping frames, it supports synchronous assembly or independent operation to enable dual-station synchronous operation during mass production, thereby improving efficiency. If a part needs to be adjusted separately, the corresponding station can be controlled separately without affecting the operation of the other station, thus providing greater flexibility.

[0014] 2. The triple positioning design, which combines a three-jaw chuck and a two-way clamping system with a guide rail, forces the axes of the three parts to coincide, ensuring coaxiality throughout the entire process from part positioning to assembly docking. Attached Figure Description

[0015] Figure 1 The diagram shown is a three-dimensional structural schematic of the quick assembly fixture for the movement roller assembly of this utility model.

[0016] Figure 2 The diagram shown is a three-dimensional disassembled view of the quick assembly fixture for the movement roller assembly of this utility model.

[0017] Figure 3 The diagram shown is a three-dimensional disassembled view of the screening base, extension frame, and buffer of the quick assembly fixture for the core roller assembly of this utility model.

[0018] Figure 4 The diagram shows a three-dimensional structure of the vibration platform and screening box of the quick assembly fixture for the core roller assembly of this utility model.

[0019] Figure 5 The diagram shows a three-dimensional structural schematic of the vibration platform, screening box, vibration motor, bellows, and connecting nozzle of the quick assembly fixture for the core roller assembly of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1-Clamping base, 2-Bearing frame, 3-Dustproof shell, 4-Lifting block, 5-Lifting frame, 6-Isolation plate, 7-Mounting groove, 8-Three-jaw chuck, 9-Screw screw, 10-Lifting groove, 11-Servo motor, 12-Guide rail, 13-First through hole, 14-Second through hole, 15-Screw groove, 16-Connecting shaft, 17-Slide groove, 18-Left and right bidirectional clamping system, 19-Limiting groove. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figures 1-5 This utility model provides an embodiment: a quick assembly fixture for a movement roller assembly, including a support frame 2 and a servo-type dual-station assembly structure. Dustproof shells 3 are installed at both ends of the support frame 2. Lifting grooves 10 are formed through both ends of the support frame 2. A fixture base 1 is fixedly connected to the lower end of the support frame 2. An installation groove 7 is formed at the upper edge of the fixture base 1, and a three-jaw chuck 8 is installed in the installation groove 7. The servo-type dual-station assembly structure includes a wire rotatably mounted at the center of the inner wall of the upper and lower ends of the lifting groove 10. The lifting block 4 consists of a rod 9, an isolation plate 6 fixed to the center of the inner wall of the left and right ends of the lifting groove 10, and two sets of lifting blocks 4 set in the lifting groove 10. The upper and lower ends of the lifting block 4 are provided with two sets of sliding grooves 17 and a set of screw grooves 15 that are symmetrically distributed on the left and right. The front and rear ends of the lifting block 4 are fixed to the lifting frame 5 through two sets of connecting shafts 16. The lifting frame 5 is equipped with a clamping frame and a left and right bidirectional clamping system 18 is installed in the clamping frame. The two sets of guide rails 12 that are symmetrically distributed on the left and right are fixed to the inner wall edges of the upper and lower ends of the lifting groove 10.

[0023] By employing two sets of independent lifting blocks 4 and clamping frames, synchronous assembly or independent operation is supported to enable simultaneous operation of two workstations during mass production, thereby improving efficiency. If a part needs to be adjusted separately, the corresponding workstation can be controlled separately without affecting the operation of the other workstation, resulting in greater flexibility. At the same time, the triple positioning design, which combines the three-jaw chuck 8 and the left and right bidirectional clamping system 18 with the guide rail 12, forces the axes of the three parts to coincide, ensuring coaxiality throughout the entire process from part positioning to assembly docking.

[0024] Please see Figures 3-4In this embodiment, the upper and lower ends of the isolation plate 6 are provided with two sets of first through holes 13 and one set of second through holes 14 symmetrically distributed. The second through hole 14 is located between the two sets of first through holes 13. The guide rail 12 passes through the first through hole 13, and the lead screw 9 passes through the second through hole 14, separating the guide rail 12 and the lead screw 9 through independent through holes. The second through hole 14 is located in the middle of the two sets of first through holes 13, forming a symmetrical structure with guidance on both sides and transmission in the middle. This avoids friction between the lead screw 9 and the guide rail 12 when rotating, and at the same time ensures that the lifting direction does not deviate. Two sets of lifting blocks 4 are distributed on the upper and lower sides of the isolation plate 6. The outer wall of the lifting block 4 fits against the inner wall of the lifting groove 10. The symmetrical lifting blocks 4 can provide support from both sides of the isolation plate 6 simultaneously, and cooperate with the outer wall of the lifting block 4. The design of fitting snugly against the inner wall of the lifting groove 10 can limit the lateral displacement of the isolation plate 6 and prevent left-right or front-back swaying during lifting. A servo motor 11 is installed at the upper center of the support frame 2. The output end of the servo motor 11 passes through the support frame 2 and is connected to the upper end of the lead screw 9. The direct connection method has no additional power loss. The high-precision speed of the servo motor 11 can be fully transmitted to the lead screw 9, improving the controllability of the lifting speed. The lead screw 9 is adapted to the screw groove 15. The outer wall of the guide rail 12 fits against the inner wall of the slide groove 17. The screw groove 15 is located between the two sets of slide grooves 17. The guide rail 12 bears the radial load of the lifting component through the slide groove 17, avoiding the lead screw 9 from being responsible for both transmission and bearing radial force, reducing the bending deformation and thread wear of the lead screw 9, and extending its service life.

[0025] Please see Figure 5 In this embodiment, four sets of equidistant limiting grooves 19 are provided through the front and rear ends of the dust cover 3. The inner wall of the limiting groove 19 fits against the outer wall of the connecting shaft 16. The dust cover 3 itself can prevent dust and debris from entering the equipment. The limiting groove 19 further seals the opening of the dust cover 3 by fitting against the connecting shaft 16, preventing impurities from seeping in from the gaps.

[0026] Please see Figures 3-5 In this embodiment, the end of the lifting frame 5 near the lifting block 4 is in contact with the end of the dust cover 3 away from the support frame 2. The centers of the three-jaw chuck 8 and the two sets of left and right bidirectional clamping systems 18 are on the same axis. The coaxiality of the three-jaw chuck 8 and the center of the bidirectional clamping system is the core precision guarantee. Whether it is centering and clamping the workpiece or bidirectional clamping, the coaxiality can ensure that the workpiece is subjected to uniform force and does not produce offset or deformation.

[0027] When in use, first place the roller mounting arm to be assembled into the mounting slot 7 of the fixture base 1, start the three-jaw chuck 8, and use the three-jaw centering characteristic to automatically clamp the mounting arm to ensure that its axis is aligned with the fixture reference axis. Then, place the roller disc and roller pin into the clamping frames of the two sets of lifting frames 5 respectively, and start the left and right bidirectional clamping system 18. One clamping system clamps the disc, and the other clamps the pin. Through the coaxial design of the center, it is ensured that the axis of the disc and the pin is consistent with the axis of the mounting arm.

[0028] Next, the servo motor 11 is started, which drives the lead screw 9 to rotate. The lifting block 4 adapted to the lead screw 9 drives the work position holding the disc and the work position holding the shaft pin of another set of lifting blocks 4 to move downward along the guide rail 12. At the same time, the guide rail 12 is guided by the first through hole 13 of the isolation plate 6 to ensure that the lifting block 4 moves smoothly. After the disc and the mounting arm are fitted together, the shaft pin is accurately inserted into the corresponding pin hole of the disc and the mounting arm to achieve the initial assembly of the three.

[0029] After assembly, the servo motor 11 rotates in reverse, driving the two sets of lifting blocks 4 to reset. The left and right bidirectional clamping system 18 and the three-jaw chuck 8 are released synchronously, and the pre-assembled roller assembly is taken out.

[0030] Through the above steps, by adopting two sets of independent lifting blocks 4 and clamping frames, synchronous assembly or independent operation is supported so that the two stations can run synchronously during mass production, thereby improving efficiency. If a certain part needs to be adjusted separately, the corresponding station can be controlled separately without affecting the operation of the other station, which is more flexible. At the same time, the triple positioning design of the three-jaw chuck 8 and the left and right bidirectional clamping system 18, combined with the guide rail 12, forces the axes of the three parts to coincide, ensuring coaxiality throughout the entire process from part positioning to assembly docking, which solves the problem of poor effect and efficiency of existing assembly fixtures when using assembly core rollers.

[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A quick assembly fixture for a movement roller assembly, comprising a support frame (2), characterized in that: It also includes a servo-type dual-station assembly structure. Dustproof shells (3) are installed at the front and rear ends of the support frame (2). Lifting grooves (10) are opened through the front and rear ends of the support frame (2). A clamp base (1) is fixedly connected to the lower end of the support frame (2). An installation groove (7) is opened at the upper edge of the clamp base (1). A three-jaw chuck (8) is installed in the installation groove (7). The servo-type dual-station assembly structure includes a lead screw (9) rotatably installed at the center of the inner wall of the upper and lower ends of the lifting groove (10) and an isolation plate fixedly connected to the center of the inner wall of the left and right ends of the lifting groove (10). (6) and two sets of lifting blocks (4) set in the lifting groove (10). The upper and lower ends of the lifting block (4) are provided with two sets of sliding grooves (17) and a set of screw grooves (15) symmetrically distributed. The front and rear ends of the lifting block (4) are fixedly connected to the lifting frame (5) through two sets of connecting shafts (16). The lifting frame (5) is equipped with a clamping frame (20). The clamping frame (20) is equipped with a left and right bidirectional clamping system (18). The upper and lower ends of the two sets of connecting lifting grooves (10) are fixedly connected to the inner wall edges of the two sets of connecting lifting grooves (10) symmetrically distributed.

2. The quick assembly fixture for the movement roller assembly according to claim 1, characterized in that: The upper and lower ends of the isolation plate (6) are provided with two sets of first through holes (13) and one set of second through holes (14) symmetrically distributed. The second through hole (14) is located between the two sets of first through holes (13). The guide rail (12) passes through the first through hole (13) and the lead screw (9) passes through the second through hole (14).

3. The quick assembly fixture for the movement roller assembly according to claim 1, characterized in that: Two sets of lifting blocks (4) are distributed on the upper and lower sides of the isolation plate (6), and the outer wall of the lifting block (4) is in contact with the inner wall of the lifting groove (10).

4. The quick assembly fixture for the movement roller assembly according to claim 1, characterized in that: A servo motor (11) is installed at the center of the upper end of the support frame (2). The output end of the servo motor (11) passes through the support frame (2) and is connected to the upper end of the lead screw (9).

5. The quick assembly fixture for the movement roller assembly according to claim 1, characterized in that: The lead screw (9) is adapted to the screw groove (15), the outer wall of the guide rail (12) is in contact with the inner wall of the slide groove (17), and the screw groove (15) is located between the two sets of slide grooves (17).

6. The quick assembly fixture for the movement roller assembly according to claim 1, characterized in that: The dust cover (3) has four sets of equidistant limiting grooves (19) through the front and rear ends, and the inner wall of the limiting groove (19) fits against the outer wall of the connecting shaft (16).

7. The quick assembly fixture for the movement roller assembly according to claim 1, characterized in that: The end of the lifting frame (5) near the lifting block (4) is in contact with the end of the dust cover (3) away from the support frame (2), and the centers of the three-jaw chuck (8) and the two sets of left and right bidirectional clamping systems (18) are on the same axis.

Images