Quick-changing product machining jig

Abstract

The utility model relates to the technical field of machining, in particular to a quick-changing product machining jig. The convex blocks are symmetrically arranged on the two sides of the vertical plate of the mounting seat front and back, the convex blocks are arranged in the cylindrical holes in the fixing plate, limiting mechanisms are arranged in the convex blocks, and the limiting mechanisms are matched with the inner ring walls of the cylindrical holes; the insertion rods are inserted into the fixing plate in a front-back symmetry mode. A connecting screw rod is screwed into the bottom ends of the inserting rods on the two sides through threads, the lower end of the connecting screw rod is screwed with a driving screw pipe through threads, and the driving screw pipe is screwed into the vertical plate of the mounting base through a bearing; the limiting plate is fixed on the inner ring wall of the vertical plate of the mounting seat, and the limiting plate is inserted into a strip-shaped groove in the outer ring wall of the connecting screw rod; the positioning plates are fixed on the outer ring wall of the insertion rod in a bilateral symmetry manner in pairs, and the positioning plates are inserted into the fixing plate; the driving mechanism is arranged in the vertical plate of the mounting seat, and the driving mechanism is connected with the driving solenoid and the limiting mechanism; and through linkage locking and synchronous release of the limiting structure, rapid disassembly and assembly are achieved, and the remodeling efficiency and stability are improved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing technology, specifically to a quick-change product processing fixture. Background Technology

[0002] In the field of machining, the rapid change of product processing fixtures is the key to improving production efficiency. Traditional fixtures are usually fixed with bolts or pins, and the disassembly and assembly process is cumbersome and time-consuming, making it difficult to meet the needs of modern production lines for efficient changeover. Especially in multi-variety, small-batch production, frequent fixture changes will lead to increased downtime and affect overall capacity. In addition, traditional fixing methods may have problems such as insufficient positioning accuracy or poor connection stability, which will affect the processing quality.

[0003] To address the aforementioned issues, some quick-change fixture designs have emerged in the prior art, such as those employing snap-fit, spring pins, or pneumatic locking mechanisms. However, these solutions still suffer from drawbacks such as complex structures, high maintenance costs, or insufficient reliability. Utility Model Content

[0004] The purpose of this utility model is to provide a product processing fixture that is reasonably designed and easy to use, which can effectively solve the defects and shortcomings of the existing technology.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: it includes a mounting base, a fixing plate, and an insert; the mounting base is L-shaped, a fixing plate is provided on the upper side of the vertical plate of the mounting base, and an insert is provided on the fixing plate; it also includes:

[0006] The protrusions are two in number and are symmetrically arranged on both sides of the vertical plate of the mounting base. The protrusions are in the cylindrical holes on the fixing plate. The protrusions are equipped with a limiting mechanism inside, which is configured to cooperate with the inner ring wall of the cylindrical hole.

[0007] The insert rods are two in number and are symmetrically inserted into the fixing plate. The bottom end of the insert rod is set on the same plane as the lower surface of the fixing plate.

[0008] Two connecting screws are provided, and they are respectively screwed into the bottom end of the plug rods on both sides. The lower end of the connecting screw is screwed into a drive tube, which is screwed into the vertical plate of the mounting base through a bearing.

[0009] The limiting plates are multiple in number and are set at equal angles on the inner ring wall of the drive tube. The limiting plates are fixed on the inner ring wall of the vertical plate of the mounting base and inserted into the strip groove on the outer ring wall of the connecting screw.

[0010] Positioning plates, there are four positioning plates, and they are fixed symmetrically in pairs on the outer ring wall of the insertion rod. The positioning plates are inserted into the fixing plate.

[0011] The drive mechanism is located inside the vertical plate of the mounting base and is connected to the drive tube and the limiting mechanism.

[0012] Through the above technical solution, the fixing plate is connected to the mounting base via the insert rod, connecting screw, and drive tube. At the same time, the limiting mechanism synchronously limits one side of the fixing plate, improving the stability after connection. When replacement is required, the drive mechanism drives the drive tube and the limiting mechanism to rotate. Under the limitation of the limiting plate, the drive tube drives the connecting screw to rotate downward, and the connecting screw unscrews out from the insert rod. At the same time, the limiting mechanism is released, and the limiting mechanism separates from the fixing plate, so that the fixing plate can be quickly removed for easy replacement.

[0013] As a further improvement of this utility model, a contact plate is fixed on the top wall of the insertion rod, and the contact plate abuts against the circular groove on the top wall of the fixing plate. A finger groove is provided on the upper surface of the contact plate, which facilitates the removal of the insertion rod.

[0014] As a further improvement of this utility model, the limiting mechanism includes:

[0015] The limiting blocks are of several kinds and are inserted at equal angles into the limiting grooves on the inner ring wall of the cylindrical groove. The other side of the limiting blocks is movably inserted into the protrusion.

[0016] A push rod, wherein there are several push rods, and each of them is fixed to one end of the upper surface of the limiting block located inside the protrusion;

[0017] The rotating disk is movably disposed within the protrusion, and several drive grooves are provided at equal angles on the rotating disk. The drive grooves are arranged in an arc shape, and push rods are movably disposed in the several drive grooves in a corresponding manner.

[0018] A rotating rod is inserted through and fixed in the center of the rotating disk. The upper end of the rotating rod is screwed into the protrusion through a bearing, and the lower end of the rotating rod passes through the lower end of the protrusion and is screwed into the vertical plate of the mounting base through a bearing. The rotating rod is also connected to the drive mechanism.

[0019] Through the above technical solution, the drive mechanism drives the rotating rod to rotate, the rotating rod drives the rotating disk to rotate, the drive groove on the rotating disk drives the push rod to move, and the push rod drives the limiting block to move into the protrusion.

[0020] As a further improvement of this utility model, the driving mechanism includes:

[0021] The drive rod is screwed into the vertical plate of the mounting base via a bearing. The drive rod is connected to one of the rotating rods via a bevel gear pair. The rotating rod is connected to the other rotating rod via a synchronous gear transmission assembly.

[0022] The driving gears are two in number, and they are respectively sleeved and fixed on the rotating rods on both sides;

[0023] The linkage gears consist of four gears, which mesh in pairs and are symmetrically connected to the vertical plate of the mounting base via shafts. The driving gear meshes with the adjacent linkage gear.

[0024] The teeth are several in number and are fixed at equal angles on the outer ring wall of the drive tube. Another linkage gear is engaged with the teeth on the adjacent outer ring wall of the drive tube.

[0025] Through the above technical solution, the drive rod drives the connected rotating rod to rotate through the bevel gear pair. The rotating rod drives another rotating rod to rotate through the synchronous gear transmission assembly. The rotating rods rotate through their respective drive gears. The drive gears drive the drive tube to rotate through two meshing linkage gears.

[0026] As a further improvement of this utility model, a driven gear is sleeved and fixed on the drive rod, a drive rack is meshed on one side of the driven gear, the drive rack is movably arranged in the rectangular groove of the mounting base vertical plate, a return spring is fixed at the bottom end of the drive rack, the lower end of the return spring is fixed on the inner bottom wall of the rectangular groove, and a toggle block is fixed on one side wall of the drive rack, and the protrusion on the toggle block is slidably arranged in the sliding groove on the side wall of the mounting base.

[0027] With the above technical solution, when changing the fixture, pressing down on the actuating block causes the actuating block to move the drive rack downwards, and the drive rack drives the drive rod to rotate through the driven gear, thus facilitating operation.

[0028] As a further improvement of this utility model, a guide rod is movably inserted inside the drive rack. The upper end of the guide rod is fixed to the inner bottom wall of the rectangular groove, and the lower end of the guide rod passes through the lower end of the return spring and is fixed to the inner bottom wall of the rectangular groove.

[0029] The above technical solution can support the return spring without affecting the up-and-down movement of the return spring and the drive rack.

[0030] Compared with the prior art, the beneficial effects of this utility model are as follows: The quick-change product processing fixture described in this utility model achieves rapid assembly and disassembly through a linkage locking and synchronous release limiting structure, thereby improving changeover efficiency and stability. This utility model has the advantages of reasonable design and low manufacturing cost. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of this utility model.

[0032] Figure 2 This is an exploded view of the present invention.

[0033] Figure 3 This is a schematic diagram of the limiting mechanism, driving mechanism, and insertion rod in this utility model.

[0034] Figure 4 for Figure 3 Enlarged view of section A.

[0035] Figure 5 This is a schematic diagram of the limiting mechanism in this utility model.

[0036] Explanation of reference numerals in the attached figures:

[0037] Mounting base 1, fixing plate 2, insert 3, protrusion 4, limiting mechanism 5, limiting block 5-1, push rod 5-2, rotating disk 5-3, drive groove 5-3-1, rotating rod 5-4, insertion rod 6, connecting screw 7, drive tube 8, limiting plate 9, positioning plate 10, drive mechanism 11, drive rod 11-1, driving gear 11-2, linkage gear 11-3, teeth 11-4, contact plate 12, finger groove 12-1, driven gear 13, drive rack 14, return spring 15, toggle block 16, guide rod 17. Detailed Implementation

[0038] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example

[0039] like Figures 1-5 As shown, this embodiment includes a mounting base 1, a fixing plate 2, and an insert 3. The mounting base 1 is L-shaped, and the fixing plate 2 is disposed on the upper side of the vertical plate of the mounting base 1. The insert 3 is disposed on the fixing plate 2. It also includes:

[0040] Two protrusions 4 are provided, and they are symmetrically arranged on both sides of the vertical plate of the mounting base 1. The protrusions 4 are in the cylindrical holes on the fixing plate 2. A limiting mechanism 5 is provided inside the protrusions 4. The limiting mechanism 5 is configured to cooperate with the inner ring wall of the cylindrical hole.

[0041] Insert rod 6, there are two insert rods 6, which are symmetrically inserted into the fixing plate 2. The bottom end of the insert rod 6 is set in the same plane as the lower surface of the fixing plate 2. A contact plate 12 is welded and fixed on the top wall of the insert rod 6. The contact plate 12 abuts against the circular groove on the top wall of the fixing plate 2. A finger groove 12-1 is opened on the upper surface of the contact plate 12 to facilitate the removal of the insert rod 6.

[0042] Two connecting screws 7 are provided, and they are respectively screwed into the bottom end of the insert rods 6 on both sides. The lower end of the connecting screw 7 is screwed into the drive tube 8, and the drive tube 8 is screwed into the vertical plate of the mounting base 1 through a bearing.

[0043] Limiting plates 9, there are several limiting plates 9, and they are set at equal angles on the inner ring wall of the drive tube 8. The limiting plates 9 are fixed on the inner ring wall of the vertical plate of the mounting base 1. The limiting plates 9 are inserted into the strip groove on the outer ring wall of the connecting screw 7.

[0044] Positioning plates 10, there are four positioning plates 10, and they are symmetrically welded and fixed to the outer ring wall of the insertion rod 6 in pairs. The positioning plates 10 are inserted into the fixing plate 2.

[0045] The drive mechanism 11 is disposed inside the vertical plate of the mounting base 1 and is connected to the drive tube 8 and the limiting mechanism 5. Example

[0046] See Figure 3 , Figure 5 As shown, based on Embodiment 1, the limiting mechanism 5 includes:

[0047] Limiting block 5-1, there are several limiting blocks 5-1, and they are inserted at equal angles into the limiting grooves on the inner ring wall of the cylindrical groove. The other side of the limiting block 5-1 is movably inserted into the protrusion 4.

[0048] Push rod 5-2, there are several push rods 5-2, and they are welded and fixed one by one to the end of the upper surface of the limiting block 5-1 located inside the protrusion 4;

[0049] The rotating disk 5-3 is movably disposed within the protrusion 4. Several drive grooves 5-3-1 are opened at equal angles on the rotating disk 5-3. The drive grooves 5-3-1 are arc-shaped. The push rods 5-2 are movably disposed in the several drive grooves 5-3-1 in a corresponding manner.

[0050] The rotating rod 5-4 is inserted through and welded to the center of the rotating disk 5-3. The upper end of the rotating rod 5-4 is screwed into the protrusion 4 through a bearing. The lower end of the rotating rod 5-4 passes through the lower end of the protrusion 4 and is screwed into the vertical plate of the mounting base 1 through a bearing. The rotating rod 5-4 is connected to the drive mechanism 11. Example

[0051] See Figure 3 , Figure 4 As shown, based on Embodiment 2, the drive mechanism 11 includes:

[0052] A drive rod 11-1 is screwed into the vertical plate of the mounting base 1 via a bearing. The drive rod 11-1 is connected to the front rotating rod 5-4 via a bevel gear pair. The rotating rod 5-4 is connected to the rear rotating rod 5-4 via a synchronous gear transmission assembly. A driven gear 13 is sleeved and welded onto the drive rod 11-1. A drive rack 14 meshes with the right side of the driven gear 13. The drive rack 14 is movably disposed within a rectangular groove in the vertical plate of the mounting base 1. A return spring 15 is welded to the bottom end of the drive rack 14, and the lower end of the return spring 15 is welded to the inner bottom wall of the rectangular groove. A return spring 15 is welded to the front side wall of the drive rack 14. A toggle block 16 is fixedly attached. The protrusion on the toggle block 16 is slidably disposed in a groove on the side wall of the mounting base 1. When changing the fixture, the toggle block 16 is pressed down, and the toggle block 16 drives the drive rack 14 to move downward. The drive rack 14 drives the drive rod 11-1 to rotate through the driven gear 13, which facilitates operation. A guide rod 17 is movably inserted inside the drive rack 14. The upper end of the guide rod 17 is fixed to the inner bottom wall of the rectangular groove, and the lower end of the guide rod 17 passes through the lower end of the return spring 15 and is fixed to the inner bottom wall of the rectangular groove. This can support the return spring 15 and does not affect the up and down movement of the return spring 15 and the drive rack 14.

[0053] There are two drive gears 11-2, which are respectively sleeved and welded to the rotating rods 5-4 on both sides;

[0054] Linkage gears 11-3, there are four linkage gears 11-3, and they are meshed in pairs and symmetrically connected to the vertical plate of the mounting base 1 through shafts. The driving gear 11-2 is meshed with the adjacent linkage gear 11-3.

[0055] The teeth 11-4 are several in number and are welded and fixed to the outer ring wall of the drive tube 8 at equal angles. Another linkage gear 11-3 is meshed with the teeth 11-4 on the adjacent outer ring wall of the drive tube 8.

[0056] When using this utility model, the fixing plate 2 is connected to the mounting base 1 via the insert rod 6, connecting screw 7, and drive tube 8. Simultaneously, the limiting mechanism 5 synchronously limits one side of the fixing plate 2, improving the stability after connection. When replacement is required, the drive rod 11-1 drives the connected rotating rod 5-4 to rotate via a bevel gear pair. This rotating rod 5-4 drives another rotating rod 5-4 to rotate via a synchronous wheel transmission assembly. The rotating rods 5-4 rotate via their respective drive gears 11-2. The drive gears 11-2 then... Two meshing linkage gears 11-3 drive the drive tube 8 to rotate. Under the limitation of the limiting plate 9, the drive tube 8 drives the connecting screw 7 to rotate downward. The connecting screw 7 is screwed out from the insert rod 6. At the same time, the drive mechanism 11 drives the rotating rod 5-4 to rotate. The rotating rod 5-4 drives the rotating disk 5-3 to rotate. The drive groove 5-3-1 on the rotating disk 5-3 drives the push rod 5-2 to move. The push rod 5-2 drives the limiting block 5-1 to move into the protrusion 4. The limiting block 5-1 separates from the fixing plate 2, so that the fixing plate 2 can be quickly removed for easy replacement.

[0057] Compared with the prior art, the beneficial effects of this specific embodiment are as follows:

[0058] 1. One-button operation is achieved through the linkage drive mechanism 11, which simultaneously controls the unlocking of the limit mechanism 5 and the withdrawal of the connecting screw 7, making the replacement process of the fixed plate 2 simple and efficient, greatly shortening the changeover time and improving production efficiency;

[0059] 2. The fixture adopts a dual fixing method, which combines the mechanical locking of the insert rod 6 and the screw with the radial clamping of the limiting block 5-1, to ensure the stability of the fixture during processing, effectively avoid displacement caused by vibration, and improve processing accuracy;

[0060] 3. The top of the insertion rod 6 is provided with a finger groove 12-1 for easy gripping. The toggle block 16, together with the reset spring 15, enables one-handed operation, simplifies the disassembly and assembly steps, reduces the difficulty of operation, and improves the ease of use.

[0061] 4. A multi-directional transmission system consisting of bevel gears, synchronous pulleys, and gear sets is adopted to ensure that the limit mechanism 5 and the drive tube 8 operate synchronously, avoiding jamming and improving the reliability and consistency of the disassembly and assembly process.

[0062] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick-change product processing fixture, comprising a mounting base (1), a fixing plate (2), and an insert (3), wherein the mounting base (1) is L-shaped, the fixing plate (2) is disposed on the upper side of the vertical plate of the mounting base (1), and the insert (3) is disposed on the fixing plate (2); characterized in that: It also includes: The protrusion (4) consists of two protrusions, which are symmetrically arranged on both sides of the vertical plate of the mounting base (1). The protrusion (4) is in the cylindrical hole on the fixing plate (2). The protrusion (4) is provided with a limiting mechanism (5) inside. The limiting mechanism (5) is configured to cooperate with the inner ring wall of the cylindrical hole. Insert rod (6), there are two insert rods (6), and they are symmetrically inserted into the fixing plate (2) from front to back. The bottom end of the insert rod (6) is set in the same plane as the lower surface of the fixing plate (2). There are two connecting screws (7), which are screwed into the bottom end of the plug rods (6) on both sides by threads. The lower end of the connecting screw (7) is screwed into the drive tube (8) by threads. The drive tube (8) is screwed into the vertical plate of the mounting base (1) by bearings. Limiting plate (9), there are several limiting plates (9), and they are set at equal angles on the inner ring wall of the drive tube (8). The limiting plate (9) is fixed on the inner ring wall of the vertical plate of the mounting base (1). The limiting plate (9) is inserted into the strip groove on the outer ring wall of the connecting screw (7). Positioning plates (10), there are four positioning plates (10), and they are fixed symmetrically on the outer ring wall of the insert rod (6) in pairs. The positioning plates (10) are inserted into the fixing plate (2). The drive mechanism (11) is located inside the vertical plate of the mounting base (1) and is connected to the drive tube (8) and the limiting mechanism (5).

2. The quick change product processing fixture of claim 1, wherein: The top wall of the insertion rod (6) is fixed with a contact plate (12), which abuts against the circular groove on the top wall of the fixing plate (2). A finger groove (12-1) is provided on the upper surface of the contact plate (12).

3. The quick change product processing fixture of claim 1, wherein: The limiting mechanism (5) includes: Limiting blocks (5-1), there are several limiting blocks (5-1), and they are inserted at equal angles into the limiting grooves on the inner ring wall of the cylindrical groove. The other side of the limiting block (5-1) is movably inserted into the protrusion (4). Push rod (5-2), there are several push rods (5-2), and each of them is fixed to one end of the upper surface of the limiting block (5-1) located inside the protrusion (4); The rotating disk (5-3) is movably disposed within the protrusion (4). Several drive grooves (5-3-1) are provided at equal angles on the rotating disk (5-3). The drive grooves (5-3-1) are arranged in an arc shape. The push rods (5-2) are movably disposed in the several drive grooves (5-3-1) in a corresponding manner. Rotating rod (5-4) is inserted through and fixed in the center of rotating disk (5-3). The upper end of rotating rod (5-4) is screwed into protrusion (4) through bearing. The lower end of rotating rod (5-4) passes through the lower end of protrusion (4) and is screwed into the vertical plate of mounting base (1) through bearing. Rotating rod (5-4) is connected to drive mechanism (11).

4. The quick change product processing fixture of claim 3, wherein: The drive mechanism (11) includes: The drive rod (11-1) is screwed into the vertical plate of the mounting base (1) by a bearing. The drive rod (11-1) is connected to one of the rotating rods (5-4) through a bevel gear pair. The rotating rod (5-4) is connected to the other rotating rod (5-4) through a synchronous gear transmission assembly. There are two drive gears (11-2), which are respectively sleeved and fixed on the rotating rods (5-4) on both sides; Linkage gears (11-3), there are four linkage gears (11-3), and they mesh with each other in pairs and are symmetrically connected to the vertical plate of the mounting base (1) through shafts. The driving gear (11-2) meshes with the adjacent linkage gear (11-3). The teeth (11-4) are several in number and are fixed at equal angles on the outer ring wall of the drive tube (8). Another linkage gear (11-3) meshes with the teeth (11-4) on the outer ring wall of the adjacent drive tube (8).

5. The quick change product processing fixture of claim 4, wherein: A driven gear (13) is sleeved and fixed on the drive rod (11-1). A drive rack (14) meshes with one side of the driven gear (13). The drive rack (14) is movably disposed in the rectangular groove of the vertical plate of the mounting base (1). A return spring (15) is fixed at the bottom end of the drive rack (14). The lower end of the return spring (15) is fixed on the inner bottom wall of the rectangular groove. A toggle block (16) is fixed on one side wall of the drive rack (14). The protrusion on the toggle block (16) is slidably disposed in the groove on the side wall of the mounting base (1).

6. The quick change product processing fixture of claim 5, wherein: The drive rack (14) has a guide rod (17) that moves through its interior. The upper end of the guide rod (17) is fixed to the inner bottom wall of the rectangular groove, and the lower end of the guide rod (17) passes through the lower end of the reset spring (15) and is fixed to the inner bottom wall of the rectangular groove.

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