Machining center clamp with locking structure

Abstract

The utility model discloses a machining center clamp with a locking structure, and relates to the technical field of machining center clamps, the machining center clamp with the locking structure comprises a clamp base, the clamp base is in sliding connection with four fixing clamps, and each fixing clamp is provided with a quick locking pin; when the clamping device is used, firstly, a workpiece needing to be machined is placed on the placing table, the workpiece is preliminarily clamped by adjusting the position of the sliding table through the dovetail sliding rail according to the size of the workpiece, and then the quick locking pin is inserted into the connecting hole of the sliding table, so that the quick locking pin is fixedly connected with the position fixing hole in the dovetail sliding rail; at the moment, the position of the sliding table is in a fixed state, the clamping jaw is finely adjusted through the piston rod and the oil cavity in the clamping jaw, the position of the workpiece is accurately adjusted through the clamping jaw, the requirement of the machining technology is met, the adjustable design of the clamping jaw and the locking operation of a rapid locking pin are achieved, the workpiece clamping process is simplified, the labor intensity of operators is reduced, and the machining efficiency is improved.

Description

Technical Field

[0001] This utility model specifically relates to the field of fixtures for machining centers, and more specifically to a fixture for machining centers with a locking structure. Background Technology

[0002] In the field of machining, machining centers, with their high precision, high efficiency, and high automation, have become key equipment for producing various precision parts. Fixtures, as indispensable supporting devices for machining centers, play a decisive role in machining quality and production efficiency.

[0003] Traditional machining center fixtures have revealed numerous problems in practical applications. Firstly, regarding clamping stability, as machining accuracy requirements continue to increase, ordinary fixtures, relying solely on simple clamping mechanisms, struggle to maintain the precise position of the workpiece under complex machining conditions such as high-speed cutting and multi-axis linkage. For instance, when milling parts with complex curved surfaces, the dynamic changes in cutting forces may cause slight displacements in the workpiece held by ordinary fixtures. This results in the dimensional accuracy and surface quality of the machined parts failing to meet the requirements of high-end manufacturing.

[0004] Secondly, there are shortcomings in terms of ease of operation. The clamping and disassembly process of traditional fixtures is often cumbersome, requiring operators to spend a lot of time on positioning, clamping, and adjustment. For example, some fixtures that use bolt fastening require tightening multiple bolts one by one each time a workpiece is clamped, which is not only time-consuming and labor-intensive, but also requires a high level of skill from the operators. This, to some extent, affects the production efficiency of the machining center and increases production costs. Utility Model Content

[0005] The purpose of this utility model is to provide a machining center fixture with a locking structure. By installing four fixed fixtures and four quick-locking pins with the fixture base, the stability of the fixture is improved while reducing the difficulty of operation and increasing production efficiency, thereby solving the technical problems mentioned in the background art.

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

[0007] A machining center fixture with a locking structure, comprising:

[0008] A clamp base, which is slidably connected to four fixed clamps, each of which is equipped with a quick-locking pin;

[0009] The fixture base includes a mounting plate with a placement platform in the middle. The placement platform is convex and has multiple mounting holes at the top. The upper surface of the mounting plate is provided with four dovetail slide rails, each with multiple position fixing holes and annular grooves inside the position fixing holes.

[0010] As a further technical solution of this utility model, each of the dovetail slide rails is slidably connected to a slide block, the upper end of the slide block is fixedly connected to the slide table, the upper surface of the slide table is symmetrically provided with oil inlet and outlet ports, the bottom of the oil inlet and outlet ports is provided with oil chambers, and the oil chambers are symmetrically arranged inside the slide table.

[0011] As a further technical solution of this utility model, a piston sealing ring is provided at the other end of the oil chamber, the other end of the piston sealing ring is connected to the piston rod, a piston chamber is left on the outside of the piston rod, a piston rod sealing ring and a top cover are provided at the other end of the piston rod, and a retaining ring is provided at the connection between the slide and the top cover.

[0012] As a further technical solution of this utility model, the other end of the piston rod is fixedly connected to the gripper, and each end of the gripper is connected to a telescopic rod, and the piston rod and the telescopic rod are symmetrically provided with a slide table on one end of the outer surface.

[0013] As a further technical solution of this utility model, a connecting hole is also left at the center of the upper surface of the slide plate. The connecting hole is connected to the locking pin housing. A button is provided at the upper end of the locking pin housing. A sliding cavity is provided at the bottom of the button and is connected to the push rod and the spring. The spring is located on the periphery of the push rod. An annular groove connected to the ball is provided at the bottom of the push rod. The bottom of the locking pin housing is provided with a movable cavity that moves with the ball. The ball is symmetrically arranged at the bottom of the locking pin housing.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In use, the workpiece to be processed is first placed on the placement table. According to the size of the workpiece, the position of the slide table is adjusted by the dovetail slide rail to initially clamp the workpiece. Then, the quick-locking pin is inserted into the connecting hole of the slide table, so that the quick-locking pin is fixedly connected with the position fixing hole on the dovetail slide rail. At this time, the position of the slide table is fixed. The gripper is finely adjusted by the internal piston rod and oil chamber to accurately adjust the position of the workpiece to meet the processing requirements. The adjustable design of the gripper and the locking operation of the quick-locking pin simplify the workpiece clamping process, reduce the labor intensity of the operator, and improve the processing efficiency.

[0016] In this invention, when the gripper is clamping the workpiece, the relative position of the gripper is adjusted by the oil inlet and outlet at the upper end of the slide. The oil inlet and outlet deliver oil to the oil chamber, which drives the piston rod to move towards the gripper. The gripper moves accordingly, and the telescopic rods at both ends of the bottom of the gripper move accordingly. Multiple grippers cooperate with each other to adapt to the clamping requirements of workpieces of various shapes and sizes, expand the application range of the fixture, and provide convenience for machining centers to handle diverse machining tasks.

[0017] In this invention, before the quick-locking pin is connected to the position fixing hole, the button is pressed down first. The button applies downward pressure to the push rod, and the groove at the bottom of the push rod connects with the ball. At this time, the bottom of the locking pin housing is connected to the position fixing hole. After connection, the button is released, and the spring applies upward elastic force to the button. The button drives the push rod to move upward, and the groove moves upward. The ball passes through the movable cavity, exposing half of the ball on the outside of the locking pin housing. The cylinder exposed on the outside of the locking pin housing connects with the annular groove, completing the fixation of the quick-locking pin to the position fixing hole. The dual protection of the quick-locking pin and the adjustable gripper ensures that the gripper is firmly locked during processing, effectively resisting various external force interferences and significantly improving the processing accuracy and surface quality of the workpiece. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This utility model Figure 1 A top-down view of the three-dimensional structure.

[0020] Figure 3 This utility model Figure 2 Top view.

[0021] Figure 4 This utility model Figure 3 AA sectional view.

[0022] Figure 5 This utility model Figure 3 BB cross-sectional view.

[0023] Figure 6 This utility model Figure 4 A magnified view of a portion of the image.

[0024] Figure 7 This utility model Figure 5 A magnified view of a portion of the image.

[0025] In the diagram: 1-Clamp base, 2-Fixing clamp, 3-Quick locking pin;

[0026] 11-Mounting plate, 12-Placement platform, 13-Mounting hole, 14-Dovetail slide rail, 15-Position fixing hole, 16-Annular groove;

[0027] 21-Slide block, 22-Slide table, 23-Oil inlet / outlet, 24-Oil chamber, 25-Piston seal ring, 26-Piston chamber, 27-Piston rod, 28-Piston rod seal ring, 29-Top cover, 210-Retaining ring, 211-Telescopic rod, 212-Clamping claw, 213-Connecting hole;

[0028] 31-Locking housing, 32-Button, 33-Sliding cavity, 34-Push rod, 35-Spring, 36-Moving cavity, 37-Ball, 38-Groove. Detailed Implementation

[0029] 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.

[0030] Please see Figure 1-7 In this embodiment of the present invention, a machining center fixture with a locking structure includes a fixture base 1, which is slidably connected to four fixed fixtures 2, and each fixed fixture 2 is equipped with a quick-locking pin 3.

[0031] The fixture base 1 includes a mounting plate 11, a placement platform 12 is provided in the middle of the mounting plate 11, the placement platform 12 is convex and has multiple mounting holes 13 at the upper end, and four dovetail slide rails 14 are provided on the upper surface of the mounting plate 11. Each dovetail slide rail 14 has multiple position fixing holes 15, and annular grooves 16 are provided in the position fixing holes 15.

[0032] By adopting the above technical solution, when using the tool, the workpiece to be processed is first placed on the placement table 12. According to the size of the workpiece, the position of the slide table 22 is adjusted by the dovetail slide rail 14 to initially clamp the workpiece. Then, the quick-lock pin 3 is inserted into the connecting hole 213 of the slide table 22, so that the quick-lock pin 3 is fixedly connected with the position fixing hole 15 on the dovetail slide rail 14. At this time, the position of the slide table 22 is fixed. The gripper 212 is finely adjusted by the internal piston rod 27 and oil chamber 24, so that the gripper 212 accurately adjusts the position of the workpiece to meet the processing requirements. The adjustable design of the gripper 212 and the locking operation of the quick-lock pin 3 simplify the workpiece clamping process, reduce the labor intensity of the operator, and improve the processing efficiency.

[0033] In this embodiment, each of the dovetail slide rails 14 is slidably connected to a slide block 21. The upper end of the slide block 21 is fixedly connected to the slide table 22. The upper surface of the slide table 22 is symmetrically provided with oil inlet and outlet ports 23. The bottom of the oil inlet and outlet ports 23 is provided with oil chambers 24. The oil chambers 24 are symmetrically arranged inside the slide table 22.

[0034] The other end of the oil chamber 24 is provided with a piston sealing ring 25, the other end of the piston sealing ring 25 is connected to the piston rod 27, the outer side of the piston rod 27 has a piston chamber 26, the other end of the piston rod 27 is provided with a piston rod sealing ring 28 and a top cover 29, and a retaining ring 210 is provided at the connection between the slide table 22 and the top cover 29;

[0035] The other end of the piston rod 27 is fixedly connected to the gripper 212. Each end of the gripper 212 is connected to a telescopic rod 211. The piston rod 27 and the telescopic rod 211 are symmetrically arranged on the outer surface of one end of the slide table 22.

[0036] By adopting the above technical solution, when clamping the workpiece, the relative position of the clamp 212 is adjusted by the oil inlet / outlet 23 at the upper end of the slide table 22. The oil inlet / outlet 23 delivers oil to the oil chamber 24, which drives the piston rod 27 to move towards the clamp 212. The clamp 212 moves accordingly, and the telescopic rods 211 at both ends of the bottom of the clamp 212 move accordingly. Multiple clamps 212 cooperate with each other, which can adapt to the clamping requirements of workpieces of various shapes and sizes, expand the application range of the fixture, and provide convenience for the machining center to handle diverse machining tasks.

[0037] In this embodiment, a connecting hole 213 is provided at the center of the upper surface of the slide 22. The connecting hole 213 is connected to the locking pin housing 31. A button 32 is provided at the upper end of the locking pin housing 31. A sliding cavity 33 is provided at the bottom of the button 32 and is connected to the push rod 34 and the spring 35. The spring 35 is located on the periphery of the push rod 34. An annular groove 38 connected to the ball 37 is provided at the bottom of the push rod 34. The locking pin housing 31 has a movable cavity 36 at the bottom that moves with the ball 37. The ball 37 is symmetrically arranged at the bottom of the locking pin housing 31.

[0038] By adopting the above technical solution, before the quick-locking pin 3 is connected to the position fixing hole 15, the button 32 is pressed down first. The button 32 applies downward pressure to the push rod 34, and the groove 38 at the bottom of the push rod 34 connects with the ball 37. At this time, the bottom of the locking pin housing 31 is connected to the position fixing hole 15. After connection, the button 32 is released, and the spring 35 applies upward elastic force to the button 32. The button 32 drives the push rod 34 to move upward, and the groove 38 moves upward. The ball 37 exposes half of the ball on the outside of the locking pin housing 31 through the movable cavity 36. The cylinder 37 exposed on the outside of the locking pin housing 31 connects with the annular groove 16, completing the fixation of the quick-locking pin 3 to the position fixing hole 15. The dual protection of the quick-locking pin 3 and the adjustable gripper 212 ensures that the gripper is firmly locked during processing, effectively resisting various external force interferences and significantly improving the processing accuracy and surface quality of the workpiece.

[0039] The working principle of this utility model is as follows: First, the workpiece to be processed is placed on the placement table 12. Based on the workpiece size, the position of the slide table 22 is adjusted using the dovetail slide rail 14 to initially clamp the workpiece. Then, the quick-locking pin 3 is inserted into the connecting hole 213 of the slide table 22, fixing the quick-locking pin 3 to the position fixing hole 15 on the dovetail slide rail 14. At this time, the position of the slide table 22 is fixed. The gripper 212 is then fine-tuned using the internal piston rod 27 and oil chamber 24 to precisely adjust the workpiece position to meet the processing requirements. The adjustable design of the gripper 212 and the locking operation of the quick-locking pin 3 simplify the workpiece clamping process, reduce the labor intensity of the operator, and improve processing efficiency.

[0040] When clamping a workpiece, the relative position of the gripper 212 is adjusted by the oil inlet / outlet 23 at the upper end of the slide table 22. The oil inlet / outlet 23 delivers oil to the oil chamber 24, which drives the piston rod 27 to move towards the gripper 212. The gripper 212 moves accordingly, and the telescopic rods 211 at both ends of the bottom of the gripper 212 also move accordingly. Multiple grippers 212 cooperate with each other to adapt to the clamping requirements of workpieces of various shapes and sizes, expand the application range of the fixture, and provide convenience for the machining center to handle diverse machining tasks.

[0041] Before the quick-locking pin 3 is connected to the position fixing hole 15, press the button 32 down first. The button 32 applies downward pressure to the push rod 34, and the groove 38 at the bottom of the push rod 34 connects with the ball 37. At this time, the bottom of the locking pin housing 31 is connected to the position fixing hole 15. After connection, release the button 32. The spring 35 applies upward elastic force to the button 32. The button 32 drives the push rod 34 to move upward, and the groove 38 moves upward. The ball 37 exposes half of the ball on the outside of the locking pin housing 31 through the movable cavity 36. The cylinder 37 exposed on the outside of the locking pin housing 31 connects with the annular groove 16, completing the fixation of the quick-locking pin 3 to the position fixing hole 15. The double protection of the quick-locking pin 3 and the adjustable gripper 212 ensures that the gripper is firmly locked during processing, effectively resisting various external force interferences and significantly improving the processing accuracy and surface quality of the workpiece.

[0042] 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.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification 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 jig for a machining center having a locking structure, characterized by: Comprising The fixture base is in sliding connection with four fixed clamps, and each of the fixed clamps is provided with a quick locking tip; The fixture base comprises a mounting plate, and a placement table is arranged at the middle position of the mounting plate; the placement table is arranged in a convex shape, and a plurality of mounting holes are left at the upper end of the placement table; four dovetail sliding rails are arranged on the upper surface of the mounting plate, and a plurality of position fixing holes are left on each of the dovetail sliding rails; and a ring groove is arranged in each of the position fixing holes.

2. The jig for a machining center having a locking structure according to claim 1, characterized in that: A sliding seat is in sliding connection with each of the dovetail sliding rails, and the upper end of the sliding seat is fixedly connected with a sliding table; the upper surface of the sliding table is symmetrically provided with an oil inlet and outlet; the bottom of the oil inlet and outlet is provided with an oil cavity, and the oil cavity is symmetrically arranged in the interior of the sliding table.

3. The fixture for machining center with locking structure according to claim 2, characterized in that: The other end of the oil cavity is provided with a piston sealing ring, the other end of the piston sealing ring is connected with a piston rod, the outer side of the piston rod is left with a piston cavity, the other end of the piston rod is provided with a piston rod sealing ring and a top cover, and a stop ring is arranged at the connection position of the sliding table and the top cover.

4. The fixture for machining center with locking structure according to claim 3, characterized in that: The other end of the piston rod is fixedly connected with a clamping jaw, and each of the two ends of the clamping jaw is connected with an extension rod; and the piston rod and the extension rod are symmetrically arranged on the outer surface of one end of the sliding table.

5. The fixture for machining center with locking structure according to claim 4, characterized in that: A connecting hole is further left at the center position of the upper surface of the sliding table, the connecting hole is connected with a locking tip shell, the upper end of the locking tip shell is provided with a button, the bottom of the button is provided with a sliding cavity, and the sliding cavity is connected with a push rod and a spring; the spring is arranged on the periphery of the push rod, the bottom of the push rod is provided with an annular groove connected with a ball; and the bottom of the locking tip shell is provided with a movable cavity movably connected with the ball, and the ball is symmetrically arranged at the bottom of the locking tip shell.

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