Synchronous clamping multi-part machining tooling

Abstract

The utility model relates to machining technical field especially relates to a kind of multi-part machining tooling of synchronous clamping. Including annular base, guide slot, controller, bevel gear, clamping block and placement plate etc., multiple guide slots are set in the circumferential direction in annular base upper portion, controller is installed in annular base front side, bevel gear is rotatably connected around in the middle part of annular base, two symmetrical clamping blocks are slidably connected in each guide slot inside, and placement plate is connected in each guide slot upper portion, and placement plate is located in the middle of adjacent two clamping blocks.The utility model sets up the linkage mechanism of bevel gear and multiple bevel gear meshing transmission, the power of single motor one is synchronously transmitted to all bidirectional screw rods, realizes the complete synchronous clamping and loosening of each clamping block, solves the action out of sync problem caused by power transmission lag in traditional multi-station fixture, significantly improves clamping accuracy and reliability.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a multi-part machining fixture that can clamp simultaneously. Background Technology

[0002] In the field of machining, especially in mass production, it is often necessary to perform milling, drilling or grinding processes on multiple identical parts at the same time to improve processing efficiency and consistency. To meet such needs, multi-station fixtures are usually used to clamp multiple parts together.

[0003] However, existing fixtures for multi-part machining mostly adopt independent or semi-linkage clamping structures, and lack an effective synchronous transmission mechanism between clamping units. This results in differences in the action time and force applied at each clamping point during the clamping process. For example, when the operator rotates the handle or starts the cylinder, the power is often transmitted to the clamping unit closer to the drive source first, and the response of the far unit is delayed. This causes multiple workpieces to be subjected to asynchronous force and inconsistent clamping sequence, which can easily lead to problems such as clamping deformation and positioning offset, seriously affecting machining accuracy and work efficiency.

[0004] Therefore, it is necessary to design a multi-part machining fixture that can clamp simultaneously. Utility Model Content

[0005] In order to overcome the shortcomings of asynchronous clamping actions in existing multi-part machining fixtures, this utility model provides a multi-part machining fixture that can clamp synchronously.

[0006] The technical solution of this utility model is: a multi-part machining fixture capable of synchronous clamping, comprising an annular base, guide grooves, a controller, a bevel gear ring, clamping blocks, a placement plate, a bidirectional screw, a bevel gear, and a motor. Multiple guide grooves are circumferentially formed on the upper part of the annular base. A controller is installed on the front side of the annular base. A bevel gear ring is rotatably connected to the center of the annular base. Two symmetrically arranged clamping blocks are slidably connected inside each guide groove, and a placement plate is connected to the upper part of each guide groove. The placement plates are located between two adjacent clamping blocks. A bidirectional screw is rotatably connected inside each guide groove. The clamping blocks are threadedly connected to adjacent bidirectional screws. A bevel gear is connected to the end of each bidirectional screw away from the center of the annular base, and the bevel gear meshes with the bevel gear ring. A motor is installed on the front side of the annular base. The motor is electrically connected to the controller, and the output shaft of the motor is connected to the rotating shaft of a bidirectional screw that is close to it.

[0007] Furthermore, it also includes a turntable, a second motor, an electric slide rail, a connecting frame, a processing module, and a locking structure. The turntable is rotatably connected to the upper part of the annular base, and the second motor is installed in the middle of the annular base. The output shaft of the second motor is connected to the turntable. An electric slide rail is installed on one side of the upper part of the turntable, and a connecting frame is slidably connected to the electric slide rail. A processing module is provided at the front end of the connecting frame. The connecting frame can support the installation of multiple different processing modules, including but not limited to modules for performing milling, drilling, and grinding processes. A locking structure is provided between the processing module and the connecting frame. The controller is electrically connected to the second motor and the electric slide rail.

[0008] Furthermore, the locking structure includes a locking block and an elastic element. The locking block is slidably connected to the connecting frame, and an elastic element connects the locking block and the connecting frame. The corresponding positions of the processing module and the connecting frame are respectively provided with slots. The locking block is inserted into the two slots under the action of the elastic element. Corresponding threaded slots are also provided between the locking block, the connecting frame and the processing module.

[0009] Furthermore, it also includes rubber pads, with rubber pads provided on the clamping surfaces of the clamping blocks.

[0010] Furthermore, it also includes foot pads, with multiple foot pads arranged circumferentially on the bottom of the ring-shaped base.

[0011] Furthermore, the second motor is a stepper motor, configured to rotate in 40° increments.

[0012] Beneficial effects:

[0013] 1. This utility model uses a linkage mechanism that connects a bevel gear ring with multiple bevel gears to synchronously transmit the power of a single motor to all bidirectional screws, thereby achieving fully synchronous clamping and loosening of each clamping block. This solves the problem of asynchronous action caused by power transmission lag in traditional multi-station fixtures, and significantly improves clamping accuracy and reliability.

[0014] 2. This utility model integrates a turntable and a motor to form an indexing system. With precise control of the 40° step angle, it can complete continuous processing of up to 9 stations on the same machine, greatly improving production cycle and equipment utilization. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the clamping block, placement plate, and bidirectional screw of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the turntable, motor 2, and electric slide rail components of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the connecting frame, processing module, and locking block of this utility model.

[0019] In the attached diagram, the following labels are used: 1-ring base, 101-guide groove, 2-controller, 3-conical gear ring, 4-clamping block, 41-placement plate, 5-bidirectional screw, 6-bevel gear, 7-motor one, 8-rubber pad, 9-turntable, 10-motor two, 11-electric slide rail, 12-connecting frame, 13-processing module, 14-locking block, 15-elastic element, 16-foot pad. Detailed Implementation

[0020] Example: A multi-part machining fixture capable of simultaneous clamping, such as... Figure 1 , Figure 2 and Figure 3 As shown, the device includes an annular base 1, guide grooves 101, a controller 2, a bevel gear ring 3, clamping blocks 4, a placement plate 41, a bidirectional screw 5, a bevel gear 6, and a motor 7. Multiple guide grooves 101 are circumferentially formed on the upper part of the annular base 1. The controller 2 is mounted on the front side of the annular base 1. The bevel gear ring 3 is rotatably connected to the middle of the annular base 1. Two symmetrically arranged clamping blocks 4 are slidably connected inside each guide groove 101, and a placement plate 41 is connected to the upper part of each guide groove 101. 41 are all located in the middle of two adjacent clamping blocks 4. The guide groove 101 is rotatably connected to a bidirectional screw 5. The clamping blocks 4 are all threadedly connected to the adjacent bidirectional screw 5. A bevel gear 6 is connected to the end of the bidirectional screw 5 away from the center of the annular base 1. The bevel gear 6 meshes with the bevel gear ring 3. A motor 7 is installed on the front side of the annular base 1 by bolts. The motor 7 is electrically connected to the controller 2. The output shaft of the motor 7 is connected to the rotating shaft of a bidirectional screw 5 that is close to each other.

[0021] like Figure 1 , Figure 3 and Figure 4As shown, it also includes a turntable 9, a second motor 10, an electric slide rail 11, a connecting frame 12, a processing module 13, and a locking structure. The turntable 9 is rotatably connected to the upper part of the annular base 1. The second motor 10 is installed in the middle of the annular base 1. The output shaft of the second motor 10 is connected to the turntable 9. The second motor 10 is a stepper motor and is configured to rotate in 40° increments to achieve automatic repositioning in multi-station cyclic processing. An electric slide rail 11 is installed on one side of the upper part of the turntable 9. The connecting frame 12 is slidably connected to the electric slide rail 11. The front end of the connecting frame 12 is provided with a processing module 13. The connecting frame 12 can support the installation of multiple different processing modules 13, including but not limited to modules for performing milling, drilling, and grinding processes. A locking structure is provided between the processing module 13 and the connecting frame 12. The controller 2 is electrically connected to the second motor 10 and the electric slide rail 11.

[0022] like Figure 4 As shown, the locking structure includes a locking block 14 and an elastic element 15. The locking block 14 is slidably connected to the connecting frame 12, and the elastic element 15 is connected between the locking block 14 and the connecting frame 12. The corresponding positions of the processing module 13 and the connecting frame 12 are respectively provided with slots. The locking block 14 is inserted into the two slots under the action of the elastic element 15. Corresponding threaded slots are also provided between the locking block 14, the connecting frame 12 and the processing module 13.

[0023] like Figure 2 As shown, it also includes a rubber pad 8. The clamping surfaces of the clamping blocks 4 are all provided with rubber pads 8, which can effectively protect the surface of the parts from mechanical scratches and are suitable for clamping precision parts or workpieces after surface treatment.

[0024] like Figure 1 As shown, it also includes foot pads 16. Multiple foot pads 16 are provided around the bottom of the annular base 1 to enhance the stability of the equipment placement and reduce the impact of vibration on processing accuracy.

[0025] In actual use, the operator places multiple parts to be processed sequentially on the placement plate 41 on the upper part of the guide groove 101. Each guide groove 101 has two symmetrically arranged clamping blocks 4 slidably connected in it. The inner side of the clamping block 4 is provided with a rubber pad 8, which can provide sufficient friction to prevent the parts from slipping and avoid damage to the surface of the parts during clamping.

[0026] When the user starts the clamping program, the controller 2 controls the motor 7 to run, driving a bidirectional screw 5 connected to its output shaft to rotate. The threads at both ends of the bidirectional screw 5 are threadedly connected to the left and right clamping blocks 4 respectively, realizing the opposite or opposite movement of a pair of clamping blocks 4. Since one end of the bidirectional screw 5 is connected to a bevel gear 6, and all bevel gears 6 mesh with the bevel gear ring 3 arranged in the middle, when the drive screw rotates, its end bevel gear 6 drives the bevel gear ring 3 to rotate as a whole, and the bevel gear ring 3 simultaneously drives all the other bevel gears 6 to rotate synchronously, thereby making each bidirectional screw 5 rotate synchronously. Thus, all clamping blocks 4 move synchronously at the same speed and direction under the drive of their respective bidirectional screws 5, realizing the synchronous clamping or loosening of multiple parts, ensuring that each workpiece is subjected to uniform force and consistent movement, and avoiding positioning offset or clamping deformation caused by differences in clamping sequence.

[0027] After clamping is completed, the processing stage begins: The user starts motor 10 through controller 2. It is a high-precision stepper motor configured to rotate in 40° increments, driving turntable 9 to rotate intermittently around the center of the annular base 1. After completing the processing of each station, it automatically rotates to the next station, realizing multi-station cyclic operation. During the processing, electric slide rail 11 slides up and down according to the preset path, driving the connecting frame 12 and its front-end processing module 13 to move precisely to the target processing area.

[0028] The processing module 13 can be replaced with different types of functional units such as milling heads, drilling heads, or grinding heads according to process requirements, and can be quickly fixed by a locking structure: the user needs to manually pull the locking block 14 upward to make it move upward against the elastic force of the elastic element 15, and then install the required processing module 13 in place, and release the force on the locking block 14. Under the elastic force of the elastic element 15, the locking block 14 automatically inserts into the corresponding slots on the connecting frame 12 and the processing module 13 to achieve quick locking. In order to further ensure the structural stability during the processing and prevent the processing module 13 from loosening under vibration or load, the user also needs to prepare fixing bolts and screw them into the threaded slots aligned with the locking block 14, the connecting frame 12 and the processing module 13 to complete rigid reinforcement, thereby effectively preventing the processing module 13 from accidentally falling off. When disassembling, simply unscrew the fixing bolts first, and then pull the locking block 14 upward to make it fall off the slot, and the processing module 13 can be removed as a whole and replaced with other functional modules. The operation is simple and the replacement is efficient.

Claims

1. A multi-part machining fixture that can be clamped synchronously, characterized by: The device includes an annular base (1), guide grooves (101), a controller (2), a bevel gear ring (3), clamping blocks (4), a placement plate (41), a bidirectional screw (5), a bevel gear (6), and a motor (7). The annular base (1) has multiple guide grooves (101) circumferentially arranged on its upper part. The controller (2) is installed on the front side of the annular base (1). The bevel gear ring (3) is rotatably connected to the middle of the annular base (1). Each guide groove (101) has two symmetrically arranged clamping blocks (4) slidably connected inside. Each guide groove (101) has a placement plate (41) connected to its upper part. The placement plate (41) is located in the middle of two adjacent clamping blocks (4). The guide groove (101) is rotatably connected to a bidirectional screw (5). The clamping block (4) is threadedly connected to the adjacent bidirectional screw (5). A bevel gear (6) is connected to one end of the bidirectional screw (5) away from the center of the annular base (1). The bevel gear (6) meshes with the bevel gear ring (3). A motor (7) is installed on the front side of the annular base (1). The motor (7) is electrically connected to the controller (2). The output shaft of the motor (7) is connected to the rotating shaft of a bidirectional screw (5) that is close to each other.

2. A multi-part machining fixture capable of synchronous clamping as claimed in claim 1, characterized in that: It also includes a turntable (9), a second motor (10), an electric slide rail (11), a connecting frame (12), a processing module (13), and a locking structure. The turntable (9) is rotatably connected to the upper part of the annular base (1). The second motor (10) is installed in the middle of the annular base (1). The output shaft of the second motor (10) is connected to the turntable (9). An electric slide rail (11) is installed on one side of the upper part of the turntable (9). The connecting frame (12) is slidably connected to the electric slide rail (11). The front end of the connecting frame (12) is provided with a processing module (13). The connecting frame (12) can support the installation of multiple different processing modules (13), including but not limited to modules for performing milling, drilling, and grinding processes. A locking structure is provided between the processing module (13) and the connecting frame (12). The controller (2) is electrically connected to the second motor (10) and the electric slide rail (11).

3. A multi-part machining fixture capable of synchronous clamping as claimed in claim 2, characterized in that: The locking structure includes a locking block (14) and an elastic element (15). The locking block (14) is slidably connected to the connecting frame (12). The elastic element (15) is connected between the locking block (14) and the connecting frame (12). The corresponding positions of the processing module (13) and the connecting frame (12) are respectively provided with slots. The locking block (14) is inserted into the two slots under the action of the elastic element (15). Corresponding threaded slots are also provided between the locking block (14), the connecting frame (12) and the processing module (13).

4. The multi-part machining fixture capable of synchronous clamping as described in claim 3, characterized in that: It also includes rubber pads (8), and the clamping surfaces of the clamping blocks (4) are all provided with rubber pads (8).

5. The multi-part machining fixture capable of synchronous clamping as described in claim 4, characterized in that: It also includes foot pads (16), and the bottom of the annular base (1) is provided with multiple foot pads (16) along the circumference.

6. The multi-part machining fixture capable of synchronous clamping as described in claim 5, characterized in that: Motor 2 (10) is a stepper motor and is configured to rotate in increments of 40°.

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