Pressing and locking device for high-speed motorized spindle production, machining and drilling

Abstract

The utility model belongs to the technical field of high-speed motorized spindle production and machining, and particularly relates to a pressing and locking device for drilling in high-speed motorized spindle production and machining, which comprises a mounting plate, a toggle clamp pressing mechanism and a pressing supplementing mechanism, and the pressing supplementing mechanism is mounted on the toggle clamp pressing mechanism and vertically corresponds to a groove seat. The groove seat is fixed on the mounting plate, and the toggle clamp pressing mechanism is mounted on the mounting plate. Through linkage matching of the toggle clamp downward pressing mechanism and the downward pressing supplementing mechanism, rapid clamping and fixing of the electric spindle can be achieved, the toggle clamp downward pressing mechanism provides main clamping force, and the requirement of industrial production for clamping efficiency is met; and the downward pressing supplementing mechanism adjusts and enhances the clamping force through a pressure compensation mechanism when the fixed groove pressing plate is abraded, so that the positioning stability in long-term use is ensured, and the positioning precision in the drilling process is also ensured. According to the design, the adaptability of the device to motorized spindle machining is remarkably improved, and meanwhile operation convenience and process reliability are both considered.

Description

Technical Field

[0001] This utility model belongs to the field of high-speed electric spindle production and processing technology, specifically relating to a clamping and locking device for drilling in high-speed electric spindle production and processing. Background Technology

[0002] In the drilling process of high-speed electric spindle production, the clamping and locking device is a key piece of equipment to ensure machining accuracy and safety. Existing clamping and locking devices mainly employ simple mechanical clamping or hydraulic fixing methods. While these achieve basic clamping functions, they have several shortcomings in practical applications: First, the operation process of traditional clamping devices is cumbersome, requiring multiple adjustments and fixations, which not only reduces production efficiency but also increases the labor intensity of operators; second, existing devices lack an effective pressure compensation mechanism. Over long-term use, mechanical wear causes the clamping force to gradually decrease, making it impossible to maintain a stable locking and positioning effect, seriously affecting machining accuracy; furthermore, existing devices generally suffer from poor adaptability and time-consuming adjustments. Therefore, to address these technical bottlenecks, this utility model proposes a clamping and locking device for drilling in high-speed electric spindle production, effectively solving the above problems through innovative structural design. Utility Model Content

[0003] The purpose of this invention is to provide a clamping and locking device for drilling in high-speed electric spindle production, which can solve the above-mentioned technical problems.

[0004] The specific technical solution adopted by this utility model is as follows:

[0005] This utility model provides a clamping and locking device for drilling in high-speed electric spindle production, including a mounting plate, an elbow clamp pressing mechanism and a pressing supplement mechanism. The pressing supplement mechanism is mounted on the elbow clamp pressing mechanism and corresponds vertically to the groove seat. The groove seat is fixed on the mounting plate, and the elbow clamp pressing mechanism is mounted on the mounting plate.

[0006] The elbow clamp pressing mechanism includes a tensile frame, a flipping arm, and fixed pressure groove plates. Two fixed pressure groove plates are provided and symmetrically arranged above the groove seat. The two fixed pressure groove plates are respectively fixed on both sides of the vertical arm. The flipping arm is sleeved in the tensile frame, with one side fixedly connected to the side of the vertical arm and the other side connected to the upper side of the two fixed plates through a rotating shaft. The lower side of the tensile frame is rotatably mounted on the fixed plate. The tensile frame is provided with a lower clamping mechanism for limiting the upward flipping angle of the flipping arm.

[0007] The downward pressure supplement mechanism includes two adjusting pressure groove plates, two expansion blocks, and a double threaded rod. The two adjusting pressure groove plates are disposed between and fitted with the two fixed pressure groove plates, and correspond vertically to the groove seat. Each of the two adjusting pressure groove plates is provided with an upward elastic mechanism that cooperates with the vertical arm. The two expansion blocks are disposed between the two fixed pressure groove plates and are in corresponding contact with the surfaces of the two adjusting pressure groove plates. The double threaded rod is disposed between the two expansion blocks, and two sets of threads with opposite directions are machined on the double threaded rod. The two sets of threads respectively cooperate with the inner threaded holes of the two expansion blocks.

[0008] Preferably, the upward elastic mechanism includes a guide rod, an upward spring, and a clamping nut. The upward spring is disposed above the vertical arm. The guide rod slides through the vertical arm and is coaxially assembled with the upward spring. The guide rod pre-presses the upward spring onto the vertical arm through the clamping nut. The lower end of the guide rod is fixedly connected to the surface of the adjusting pressure groove plate.

[0009] Preferably, the bottom surface of the vertical arm is provided with a fixing nut, and the fixing nut is fixed in the middle position of the double threaded rod, and the lower end of the guide rod is sleeved in the opening recess on the expansion block.

[0010] Preferably, the bottom surface of the expansion block is machined with an inclined extrusion surface that communicates with the concave hole, and the inclined extrusion surface corresponds to and matches the obtuse angle surface at the corner of the adjusting pressure groove plate.

[0011] Preferably, the lower clamping mechanism includes two movable shafts, a linkage plate, and an overlapping limiting frame. The two linkage plates are arranged on both sides of the flip arm inside the tensile frame. The upper and lower ends of the two linkage plates are respectively fixedly connected to two movable shafts, and the two movable shafts pass through the shaft holes of the tensile frame and the flip arm respectively.

[0012] Preferably, when the tensile frame and the flipping arm are in a vertical state, the two movable shafts are arranged vertically aligned, and a push-pull rod is fixed on the outer surface of the tensile frame.

[0013] Preferably, the upper surface of the flipping arm contacts and engages with the overlapping limiting frame, which is fixedly connected between the two linkage plates.

[0014] The beneficial effects are:

[0015] This invention achieves rapid clamping and fixing of the electric spindle through the coordinated operation of an elbow clamp pressing mechanism and a pressing supplement mechanism. The elbow clamp pressing mechanism provides the main clamping force, meeting the clamping efficiency requirements of industrial production. The pressing supplement mechanism, through a pressure compensation mechanism, adjusts and enhances the clamping force when the fixed pressure groove plate wears, ensuring both long-term positioning stability and positioning accuracy during drilling. This design significantly improves the adaptability of the device to electric spindle machining while also considering ease of operation and process reliability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of one side of the elbow clamp pressing mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the other side of the elbow clamp pressing mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the downward pressure supplementation mechanism of this utility model.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Mounting plate; 2. Elbow clamp pressing mechanism; 21. Tensile frame; 21a. Push-pull rod; 22. Tilting arm; 23. Fixing plate; 24. Vertical arm; 25. Fixing groove plate; 26. Movable shaft; 27. Linkage plate; 28. Overlapping limit frame; 3. Pressing supplement mechanism; 31. Adjusting groove plate; 31a. Obtuse angle surface; 32. Guide rod; 33. Push-up spring; 34. Pressing nut; 35. Expansion block; 35a. Concave hole; 35b. Inclined extrusion surface; 36. Double threaded rod; 36a. Fixing nut; 4. Groove seat. Detailed Implementation

[0022] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0023] like Figure 1-4 As shown, a clamping and locking device for drilling in high-speed electric spindle production includes a mounting plate 1, an elbow clamp pressing mechanism 2 and a pressing supplement mechanism 3. The pressing supplement mechanism 3 is mounted on the elbow clamp pressing mechanism 2 and corresponds vertically to the groove seat 4. The groove seat 4 is fixed on the mounting plate 1. The elbow clamp pressing mechanism 2 is mounted on the mounting plate 1. The groove of the groove seat 4 is set as an arc-shaped V-face, and the V-face is coated with a tungsten steel coating.

[0024] The elbow clamp pressing mechanism 2 includes a tensile frame 21, a flipping arm 22, and a fixed pressing plate 25. There are two fixed pressing plates 25, which are symmetrically arranged above the groove seat 4. The two fixed pressing plates 25 are respectively fixed on both sides of the vertical arm 24. The flipping arm 22 is sleeved in the tensile frame 21. One side of the flipping arm 22 is fixedly connected to the side of the vertical arm 24, and the other side is connected to the upper side of the two fixed plates 23 through a rotating shaft. The lower side of the tensile frame 21 is rotatably mounted on the fixed plate 23. The tensile frame 21 is provided with a lower clamping mechanism for limiting the upward flipping angle of the flipping arm 22. The surface of the fixed pressing plate 25 is provided with an arc-shaped notch, and the notch is coated with a tungsten steel coating.

[0025] The downward pressure supplement mechanism 3 includes two adjusting pressure groove plates 31, two expanding blocks 35, and a double threaded rod 36. The two adjusting pressure groove plates 31 are arranged between and attached to the two fixed pressure groove plates 25, and correspond vertically to the groove seat 4. Each of the two adjusting pressure groove plates 31 is provided with an upward push elastic mechanism that cooperates with the vertical arm 24. The two expanding blocks 35 are arranged between the two fixed pressure groove plates 25 and are in corresponding contact with the surfaces of the two adjusting pressure groove plates 31. The double threaded rod 36 is arranged between the two expanding blocks 35, and two sets of threads with opposite directions are machined on the double threaded rod 36. The two sets of threads respectively cooperate with the inner threaded holes of the two expanding blocks 35.

[0026] As an optional implementation, the upward elastic mechanism includes a guide rod 32, an upward spring 33, and a clamping nut 34. The upward spring 33 is disposed above the vertical arm 24. The guide rod 32 slides through the vertical arm 24 and is coaxially assembled with the upward spring 33. The guide rod 32 pre-presses the upward spring 33 onto the vertical arm 24 through the clamping nut 34. The lower end of the guide rod 32 is fixedly connected to the surface of the adjusting pressure plate 31. Through the cooperation of the clamping nut 34 and the upward spring 33, the adjusting pressure plate 31 can adaptively float up and down after adjustment.

[0027] See attached document Figure 4 A fixing nut 36a is provided on the bottom surface of the vertical arm 24, and the fixing nut 36a is fixed in the middle position of the double threaded rod 36. By rotating the fixing nut 36a, the double threaded rod 36 can be driven to push and adjust the two expansion blocks 35, so that the expansion blocks 35 abut against the bottom surface of the vertical arm 24 and push the adjusting pressure groove plate 31 to move down. For pressure compensation adjustment, the lower end of the guide rod 32 is sleeved in the opening recess 35a opened on the expansion block 35. When the expansion block 35 is driven to move by the double threaded rod 36, the recess 35a can constrain the movement trajectory of the expansion block 35, thereby pushing the adjusting pressure groove plate 31 to move down and realize the pressure increase and clamping of the electric spindle.

[0028] Furthermore, the bottom surface of the expansion block 35 is machined with an inclined extrusion surface 35b that communicates with the concave hole 35a, and the inclined extrusion surface 35b corresponds to and cooperates with the obtuse angle surface 31a at the corner of the adjusting pressure plate 31. When the expansion block 35 moves horizontally, the wedge action of the inclined extrusion surface 35b and the obtuse angle surface 31a can be converted into the vertical downward pressure of the adjusting pressure plate 31. The bottom surface of the adjusting pressure plate 31 is provided with an arc-shaped notch, and the notch is coated with a tungsten steel coating.

[0029] See attached document Figure 2 and attached Figure 3 The lower clamping mechanism includes two movable shafts 26, a linkage plate 27, and an overlapping limiting frame 28. The two linkage plates 27 are set on both sides of the flipping arm 22 inside the tensile frame 21. The upper and lower ends of the two linkage plates 27 are respectively fixedly connected to the two movable shafts 26. The two movable shafts 26 pass through the shaft holes of the tensile frame 21 and the flipping arm 22, so that the tensile frame 21 and the vertical arm 24 can form a linkage flipping mechanism with the linkage plate 27 through the movable shafts 26, driving the fixed pressure plate 25 to press the electric spindle on the groove seat 4.

[0030] Furthermore, when the tensile frame 21 and the tilting arm 22 are in a vertical state, the two movable shafts 26 are arranged vertically aligned. The outer surface of the tensile frame 21 is fixed with a push-pull rod 21a. The operator can rotate the tensile frame 21 by pushing and pulling the rod 21a to simultaneously drive the tilting arm 22 and the fixed pressure plate 25 to complete the pressing or releasing action.

[0031] Furthermore, the upper surface of the flipping arm 22 contacts and engages with the overlapping limiting frame 28, which is fixedly connected between the two linkage plates 27. When the tensile frame 21 flips, the overlapping limiting frame 28 and the tensile frame 21 together form a rigid limit on the vertical arm 24.

[0032] Using the above structure, the following steps are included:

[0033] 1. Initial positioning stage

[0034] Place the electric spindle into the groove 4 of the mounting plate 1, ensuring that the spindle flange is fully fitted with the inner surface of the groove 4;

[0035] The operator holds the push-pull rod 21a of the tension frame 21 and applies a downward rotational force.

[0036] 2. Main clamping mechanism operation

[0037] The tensile frame 21 rotates around the fixed plate 23, and drives the linkage plate 27 to move synchronously through the movable shaft 26;

[0038] The linkage plate 27 drives the tilting arm 22 to generate a lever action with the vertical arm 24 as the fulcrum, so that the two fixed pressure groove plates 25 are pressed down.

[0039] When the tensile frame 21 and the flipping arm 22 reach a vertical state, the overlapping limit frame 28 and the tensile frame 21 form a rigid stop, and at this time the fixed pressure plate 25 applies a clamping force to the electric spindle.

[0040] 3. Mechanical self-locking

[0041] The two movable shafts 26 of the lower clamping mechanism are arranged vertically, and the triangular stabilizing structure of the linkage plate 27 prevents the flipping arm 22 from springing back.

[0042] The tungsten carbide coating on the fixed pressure plate 25 generates static friction with the spindle flange.

[0043] This device achieves the dual functions of "completion of main clamping and automatic compensation in one operation" through mechanical linkage, which reduces the clamping time by 60% compared with traditional fixtures, and is particularly suitable for precision drilling of high-speed spindles.

[0044] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. This application is mainly used to protect mechanical devices. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, are implemented according to conventional methods in the field.

Claims

1. A clamping and locking device for drilling in high-speed electric spindle production, characterized in that: It includes a mounting plate (1), an elbow clamp pressing mechanism (2) and a pressing supplement mechanism (3). The pressing supplement mechanism (3) is mounted on the elbow clamp pressing mechanism (2) and corresponds vertically to the groove seat (4). The groove seat (4) is fixed on the mounting plate (1). The elbow clamp pressing mechanism (2) is mounted on the mounting plate (1). The elbow clamp pressing mechanism (2) includes a tensile frame (21), a flipping arm (22), and a fixed pressing plate (25). There are two fixed pressing plates (25), and the two fixed pressing plates (25) are symmetrically arranged above the groove seat (4). The two fixed pressing plates (25) are respectively fixed on both sides of the vertical arm (24). The flipping arm (22) is sleeved in the tensile frame (21). One side of the arm is fixedly connected to the side of the vertical arm (24), and the other side is connected to the upper side of the two fixed plates (23) through a rotating shaft. The lower side of the tensile frame (21) is rotatably mounted on the fixed plate (23). The tensile frame (21) is provided with a lower clamping mechanism for limiting the upward flipping angle of the flipping arm (22). The pressing and supplementing mechanism (3) includes two adjusting pressure groove plates (31), two expanding blocks (35), and a double threaded rod (36). The two adjusting pressure groove plates (31) are arranged between and attached to the two fixed pressure groove plates (25), and correspond vertically to the groove seat (4). Both adjusting pressure groove plates (31) are provided with an upward elastic mechanism that cooperates with the vertical arm (24). The two expanding blocks (35) are arranged between the two fixed pressure groove plates (25) and correspond to the surfaces of the two adjusting pressure groove plates (31). The double threaded rod (36) is arranged between the two expanding blocks (35), and two sets of threads with opposite directions are machined on the double threaded rod (36). The two sets of threads cooperate with the inner threaded holes of the two expanding blocks (35).

2. The clamping and locking device for drilling in high-speed electric spindle production according to claim 1, characterized in that: The upward elastic mechanism includes a guide rod (32), an upward spring (33), and a clamping nut (34). The upward spring (33) is positioned above the vertical arm (24). The guide rod (32) slides through the vertical arm (24) and is coaxially assembled with the upward spring (33). The guide rod (32) pre-presses the upward spring (33) onto the vertical arm (24) through the clamping nut (34). The lower end of the guide rod (32) is fixedly connected to the surface of the adjusting pressure groove plate (31).

3. The clamping and locking device for drilling in high-speed electric spindle production according to claim 2, characterized in that: The bottom surface of the vertical arm (24) is provided with a fixing nut (36a), and the fixing nut (36a) is fixed in the middle position of the double threaded rod (36). The lower end of the guide rod (32) is sleeved in the opening recess (35a) opened on the expansion block (35).

4. The clamping and locking device for drilling in high-speed electric spindle production according to claim 3, characterized in that: The bottom surface of the expansion block (35) is machined with an inclined extrusion surface (35b) that communicates with the concave hole (35a), and the inclined extrusion surface (35b) corresponds to and matches the obtuse angle surface (31a) at the corner of the adjusting pressure groove plate (31).

5. The clamping and locking device for drilling in high-speed electric spindle production according to claim 4, characterized in that: The lowering mechanism includes two movable shafts (26), a linkage plate (27), and an overlapping limiting frame (28). The two linkage plates (27) are arranged on both sides of the flipping arm (22) inside the tensile frame (21). The upper and lower ends of the two linkage plates (27) are respectively fixedly connected to the two movable shafts (26). The two movable shafts (26) pass through the shaft holes of the tensile frame (21) and the flipping arm (22).

6. The clamping and locking device for drilling in high-speed electric spindle production according to claim 5, characterized in that: When the tensile frame (21) and the flipping arm (22) are in a vertical state, the two movable shafts (26) are arranged vertically aligned, and the outer surface of the tensile frame (21) is fixed with a push-pull rod (21a).

7. A clamping and locking device for drilling in high-speed electric spindle production according to claim 6, characterized in that: The upper surface of the flip arm (22) contacts and engages with the overlapping limiting frame (28), which is fixedly connected between two linkage plates (27).

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