Precise hydraulic clamping tool of horizontal machining center

Abstract

The utility model discloses a precise hydraulic clamping tool for a horizontal machining center, which relates to the technical field of horizontal machining centers and comprises a shell, a workbench for machining a workpiece is fixedly connected in the shell, hydraulic rods located on the left side and the right side of the workbench are arranged in the shell, and the hydraulic rods are arranged on the left side and the right side of the workbench. A clamping structure is arranged at the output end of the hydraulic rod, and the clamping structure clamps the side of the workpiece by moving a side fixing plate contained in the clamping structure. A to-be-machined workpiece is placed on the upper surface of the workbench, the hydraulic rod is started, the hydraulic rod can drive the side fixing plate to move towards the inner side at the moment, and therefore the to-be-machined workpiece is clamped and limited, and the to-be-machined workpiece is prevented from deviating in the subsequent machining process; and through mutual cooperation of an anti-skid pad and a first spring, the phenomenon that in the clamping process, due to the fact that the clamping force is too large, the workpiece is damaged can be prevented.

Description

Technical Field

[0001] This utility model relates to the field of horizontal machining center technology, specifically a precision hydraulic clamping fixture for horizontal machining centers. Background Technology

[0002] A horizontal machining center is a CNC machine tool in which the spindle axis is set parallel to the worktable. It is a key piece of equipment in modern manufacturing for efficient and high-precision machining of complex parts. Equipped with a tool magazine and automatic tool changer, it can quickly switch tools and realize multi-process automatic machining.

[0003] Existing technology (publication number CN219725341U, publication date 2023-09-22) discloses a horizontal machining center fixed table, relating to the field of machining fixed table technology. It includes a machining fixed table, a movable support fixedly mounted on the bottom surface of the fixed table, a movable fixing device fixedly mounted on the top surface of the fixed table, and a reference positioning component fixedly mounted on the surface of the fixed table. The movable support includes a support unit and a moving unit, and the movable fixing device includes a fixing unit and a clamping unit, with the clamping unit movably mounted on the surface of the fixing unit. By opening heat dissipation grooves on the surface of the machining motherboard, the heat generated during machining can be effectively dissipated, preventing excessive temperature from affecting product quality and the working environment. Simultaneously, the presence of filter holes prevents machining debris from passing through the heat dissipation grooves and affecting equipment safety.

[0004] While existing technologies can effectively dissipate the heat generated by the machine during processing, they cannot stably clamp and limit the workpiece during processing. The workpiece may shift due to the force between it and the tool during processing, thus affecting the accuracy of processing.

[0005] Therefore, we propose a precision hydraulic clamping fixture for horizontal machining centers to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a precision hydraulic clamping fixture for a horizontal machining center, in order to solve the problem mentioned in the background art that the workpiece to be processed cannot be stably clamped and limited during processing, and the workpiece may deviate due to the force of contact between it and the tool during processing, thereby affecting the accuracy of processing.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a precision hydraulic clamping fixture for a horizontal machining center, comprising a housing, a worktable for machining workpieces is fixedly connected inside the housing, hydraulic rods are provided on the left and right sides of the worktable inside the housing, and clamping structures are provided at the output ends of the hydraulic rods. The clamping structures clamp the workpiece from the side by moving the side fixing plates they contain. At the same time, auxiliary mechanisms are also provided on the side of the clamping structures. The auxiliary mechanisms clamp the workpiece from the front and rear sides by rotating the front fixing plates they contain.

[0008] Furthermore, the clamping structure includes a side fixing plate, which is fixedly connected to the output end of the hydraulic rod. A storage groove is provided on the inner side of the side fixing plate, and an anti-slip pad is nested inside the storage groove. At the same time, a first spring is fixedly connected between the inner side of the anti-slip pad and the inner wall of the storage groove.

[0009] Furthermore, a limiting rod is fixedly connected to the upper surface of the workbench, and a sliding seat is nested on the outside of the limiting rod. A rotating rod is hinged to the inside of the sliding seat, and the other end of the rotating rod is hinged to the side of the side fixing plate.

[0010] Furthermore, the rotating rod forms a rotating structure with the sliding seat via the side fixing plate, and the sliding seat forms a sliding structure with the rotating rod and the limiting rod.

[0011] Furthermore, the auxiliary mechanism includes a toothed plate, which is fixedly connected to the side of the sliding seat. The upper surface of the worktable is rotatably connected to the front and rear sides of the rotating shaft, and a gear is fixedly connected to the end of the rotating shaft. A rotating plate is fixedly connected to the middle of the rotating shaft, and a buffer bladder is fixedly connected to the front side of the rotating plate. A positive fixing plate is fixedly connected to the outside of the buffer bladder, and a second spring is fixedly connected between the inner side of the positive fixing plate and the rotating plate.

[0012] Furthermore, the gear meshes with the gear plate, and the rotating shaft forms a rotating structure with the worktable through the gear.

[0013] Furthermore, both the positive fixing plate and the rotating plate are arranged in an arc shape, and the positive fixing plate and the rotating plate form a rotating structure through the second spring.

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

[0015] 1. Place the workpiece to be processed on the upper surface of the worktable and activate the hydraulic rod. At this time, the hydraulic rod can drive the side fixing plate to move inward, thereby clamping and limiting the workpiece to be processed and preventing the workpiece to be processed from shifting in position during subsequent processing.

[0016] 2. An anti-slip pad is provided on the inner side of the side fixing plate. When the side fixing plate clamps the workpiece to be processed, the anti-slip pad will come into contact with the workpiece. At the same time, during the movement and clamping process of the side fixing plate, the anti-slip pad will squeeze the first spring. At this time, the first spring can buffer the force of the side fixing plate movement. Through the cooperation of the anti-slip pad and the first spring, the workpiece can be prevented from being damaged due to excessive clamping force during the clamping process.

[0017] 3. When the side fixing plate moves, it will simultaneously apply tension to the low rotating rod, causing the rotating rod to rotate. At this time, the other end of the rotating rod will simultaneously pull the sliding seat to move on the limiting rod. Through the cooperation between the limiting rod and the sliding seat, the stability of the side fixing plate movement can be improved, and the side fixing plate can better clamp and limit the workpiece.

[0018] 4. During the sliding process, the sliding seat can synchronously drive the toothed plate to move. At this time, the toothed plate can drive the gear meshing with it to rotate. When the gear rotates, it synchronously drives the rotating shaft to rotate, and the rotating shaft drives the rotating plate to rotate. At this time, the fixed plate rotates synchronously under the drive of the rotating plate, thereby providing auxiliary clamping for the front and rear sides of the workpiece and further ensuring the stability of the workpiece placement.

[0019] 5. When the positive fixing plate is attached to the workpiece, the positive fixing plate will simultaneously compress the second spring, causing the second spring to undergo elastic deformation. At the same time, the buffer bag is also compressed. The positive fixing plate cooperates with the second spring and the buffer bag to prevent the workpiece from being damaged due to excessive force when the positive fixing plate is rotated and clamped. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional sectional view of the present invention.

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the workbench of this utility model;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the rotating rod of this utility model;

[0024] Figure 5 This is a three-dimensional structural diagram of the side fixing plate of this utility model;

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of the rotating plate of this utility model;

[0026] Figure 7 This is a three-dimensional structural diagram of the second spring of this utility model.

[0027] In the diagram: 1. Housing; 2. Workbench; 3. Side fixing plate; 4. Front fixing plate; 5. Hydraulic rod; 6. Limiting rod; 7. Rotating rod; 8. Sliding seat; 9. Anti-slip pad; 10. Storage slot; 11. First spring; 12. Gear; 13. Gear plate; 14. Rotating plate; 15. Rotating shaft; 16. Second spring; 17. Buffer bag. Detailed Implementation

[0028] 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.

[0029] Example 1: As Figure 1 , Figure 2 , Figure 3 and Figure 5 The technical solution shown is provided by the present utility model as follows: A precision hydraulic clamping fixture for a horizontal machining center discloses a clamping structure that can clamp the workpiece from the side: a worktable 2 for machining the workpiece is fixedly connected inside the housing 1, and hydraulic rods 5 located on the left and right sides of the worktable 2 are provided inside the housing 1. The output end of the hydraulic rods 5 is provided with a clamping structure, and the clamping structure clamps the workpiece from the side by moving the side fixing plate 3 included therein. The clamping structure includes a side fixing plate 3, which is fixedly connected to the output end of the hydraulic rod 5. A storage groove 10 is opened on the inner side of the side fixing plate 3, and an anti-slip pad 9 is nested inside the storage groove 10. At the same time, a first spring 11 is fixedly connected between the inner side of the anti-slip pad 9 and the inner wall of the storage groove 10.

[0030] Place the workpiece to be processed on the upper surface of the worktable 2 and activate the hydraulic rod 5. At this time, the hydraulic rod 5 can drive the side fixing plate 3 to move inward, thereby clamping and limiting the workpiece to be processed, preventing the workpiece to be processed from shifting its position during subsequent processing. The inner side of the side fixing plate 3 is provided with an anti-slip pad 9. When the side fixing plate 3 clamps the workpiece to be processed, the anti-slip pad 9 will contact the workpiece to be processed. At the same time, during the movement and clamping process of the side fixing plate 3, the anti-slip pad 9 will squeeze the first spring 11. At this time, the first spring 11 can buffer the force of the side fixing plate 3 movement. Through the cooperation of the anti-slip pad 9 and the first spring 11, the workpiece can be prevented from being damaged due to excessive clamping force during the clamping process.

[0031] Example 2: Figure 3 and Figure 4The technical solution shown is provided by this utility model as follows: A precision hydraulic clamping fixture for a horizontal machining center, which discloses a sliding seat 8. The mutual cooperation between the sliding seats 8 can improve the stability of the movement of the side fixing plate 3. A limit rod 6 is fixedly connected to the upper surface of the worktable 2, and a sliding seat 8 is nested on the outside of the limit rod 6. A rotating rod 7 is hinged to the inner side of the sliding seat 8. At the same time, the other end of the rotating rod 7 is hinged to the side of the side fixing plate 3. The rotating rod 7 forms a rotating structure with the sliding seat 8 through the side fixing plate 3, and the sliding seat 8 forms a sliding structure with the limit rod 6 through the rotating rod 7.

[0032] When the side fixing plate 3 moves, it will simultaneously apply a pulling force to the low rotating rod 7, causing the rotating rod 7 to rotate. At this time, the other end of the rotating rod 7 will simultaneously pull the sliding seat 8 to move on the limiting rod 6. Through the cooperation between the limiting rod 6 and the sliding seat 8, the stability of the movement of the side fixing plate 3 can be improved, and the side fixing plate 3 can better clamp and limit the workpiece.

[0033] Example 3: Figure 3 , Figure 6 and Figure 7 The technical solution shown herein provides the following technical solution: A precision hydraulic clamping fixture for a horizontal machining center, comprising an auxiliary mechanism, which clamps the front and rear sides of the workpiece to further ensure the stability of the workpiece placement. An auxiliary mechanism is also provided on the side of the clamping structure. The auxiliary mechanism clamps the front and rear sides of the workpiece by rotating the included fixed plate 4. The auxiliary mechanism includes a toothed plate 13, which is fixedly connected to the side of the sliding seat 8. Rotary shafts 15 are rotatably connected to the front and rear sides of the upper surface of the worktable 2. A gear 12 is fixedly connected to the end side, and a rotating plate 14 is fixedly connected to the middle of the rotating shaft 15. A buffer bladder 17 is fixedly connected to the front side of the rotating plate 14. A positive fixing plate 4 is fixedly connected to the outside of the buffer bladder 17, and a second spring 16 is fixedly connected between the inner side of the positive fixing plate 4 and the rotating plate 14. The gear 12 and the toothed plate 13 mesh with each other. The rotating shaft 15 forms a rotating structure with the worktable 2 through the gear 12. Both the positive fixing plate 4 and the rotating plate 14 are arranged in an arc shape, and the positive fixing plate 4 forms a rotating structure with the rotating plate 14 through the second spring 16.

[0034] During the sliding process, the sliding seat 8 can synchronously drive the toothed plate 13 to move. At this time, the toothed plate 13 can drive the gear 12 meshing with it to rotate. When the gear 12 rotates, it synchronously drives the rotating shaft 15 to rotate, and the rotating shaft 15 drives the rotating plate 14 to rotate. At this time, the positive fixing plate 4 rotates synchronously under the drive of the rotating plate 14, thereby providing auxiliary clamping for the front and rear sides of the workpiece and further ensuring the stability of the workpiece placement. When the positive fixing plate 4 is in contact with the workpiece, the positive fixing plate 4 will synchronously compress the second spring 16, causing the second spring 16 to undergo elastic deformation. At the same time, the buffer bladder 17 is synchronously compressed. The positive fixing plate 4 cooperates with the second spring 16 and the buffer bladder 17 to prevent the positive fixing plate 4 from causing damage to the workpiece due to excessive rotational clamping force.

[0035] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0036] 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. A horizontal machining center precision hydraulic clamping tool, comprising a shell (1), the inside of the shell (1) is fixedly connected with a workbench (2) for workpiece machining operation, characterized in that: The housing (1) is provided with hydraulic rods (5) located on the left and right sides of the worktable (2), and the output end of the hydraulic rods (5) is provided with a clamping structure. The clamping structure clamps the workpiece on the side by moving the side fixing plate (3) it contains. At the same time, the side of the clamping structure is also provided with an auxiliary mechanism. The auxiliary mechanism clamps the front and rear sides of the workpiece by rotating the front fixing plate (4) it contains.

2. The horizontal machining center precision hydraulic clamping tool of claim 1, wherein: The clamping structure includes a side fixing plate (3), which is fixedly connected to the output end of the hydraulic rod (5). The side fixing plate (3) has a storage groove (10) on its inner side, and an anti-slip pad (9) is nested inside the storage groove (10). At the same time, a first spring (11) is fixedly connected between the inner side of the anti-slip pad (9) and the inner wall of the storage groove (10).

3. The horizontal machining center precision hydraulic clamping tool of claim 2, wherein: The upper surface of the workbench (2) is fixedly connected to a limiting rod (6), and a sliding seat (8) is nested on the outside of the limiting rod (6). A rotating rod (7) is hinged on the inside of the sliding seat (8), and the other end of the rotating rod (7) is hinged to the side of the side fixing plate (3).

4. The horizontal machining center precision hydraulic clamping tool of claim 3, wherein: The rotating rod (7) forms a rotating structure with the sliding seat (8) through the side fixing plate (3), and the sliding seat (8) forms a sliding structure with the limiting rod (6) through the rotating rod (7).

5. The horizontal machining center precision hydraulic clamping tool of claim 3, wherein: The auxiliary mechanism includes a toothed plate (13), which is fixedly connected to the side of the sliding seat (8). The upper surface of the worktable (2) is rotatably connected to the front and rear sides of a rotating shaft (15), and a gear (12) is fixedly connected to the end of the rotating shaft (15). A rotating plate (14) is fixedly connected to the middle of the rotating shaft (15), and a buffer bladder (17) is fixedly connected to the front side of the rotating plate (14). A positive fixing plate (4) is fixedly connected to the outside of the buffer bladder (17), and a second spring (16) is fixedly connected between the inner side of the positive fixing plate (4) and the rotating plate (14).

6. The horizontal machining center precision hydraulic clamping tool of claim 5, wherein: The gear (12) meshes with the toothed plate (13), and the rotating shaft (15) forms a rotating structure with the worktable (2) through the gear (12).

7. The horizontal machining center precision hydraulic clamping tool of claim 4, wherein: Both the positive fixing plate (4) and the rotating plate (14) are arranged in an arc shape, and the positive fixing plate (4) and the rotating plate (14) form a rotating structure through the second spring (16).

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