Milling fixture with pressure regulation
By introducing auxiliary and main pressure mechanisms into the milling fixture, combined with real-time display of pressure sensors, the problems of unstable clamping and unadjustable pressure are solved, achieving stable workpiece clamping and visualized pressure adjustment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PANZHOU VOCATIONAL & TECH SCHOOL
- Filing Date
- 2025-08-01
- Publication Date
- 2026-06-26
AI Technical Summary
Existing milling fixtures suffer from unstable clamping and inaccurate clamping pressure adjustment during use.
A milling fixture with pressure regulation function was designed. By installing auxiliary pressure mechanism and main pressure mechanism on both sides of the base plate, and using pressure sensor to display pressure value in real time, the workpiece can be visually adjusted and stably clamped.
It improves clamping stability and visual adjustment capabilities, avoids direct contact between the pressure sensor and the workpiece, and facilitates subsequent maintenance.
Smart Images

Figure CN224407015U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of parts processing technology, specifically relating to a milling fixture with pressure adjustment function. Background Technology
[0002] When a milling machine uses a milling cutter to machine the surface of a workpiece, the workpiece needs to be clamped and fixed first to ensure that the workpiece is in a stable state during milling. Therefore, appropriate workpiece fixtures are required.
[0003] The patent specification with announcement number CN222308051U discloses a milling positioning device for metal parts, including a mounting plate, with support plates fixedly connected to the upper two sides of the mounting plate, and positioning and fixing components provided on the two support plates; a controller is installed on one side of the front end of the mounting plate.
[0004] This positioning device uses a positioning and fixing component to fix the metal part, and a pressure sensor is installed on the outside of the positioning plate. When fixing the metal part, the pressure sensor directly contacts the clamped part and then transmits the pressure value back to the controller. The shortcomings of this technical solution are that the pressure measuring surface of the pressure sensor is made of a different material than the surface of the positioning plate used to clamp the workpiece, and the pressure sensor usually needs a certain deformation to measure the pressure effectively. That is, when the pressure sensor is directly installed on the clamping surface, the clamping surface of the positioning plate and the pressure measuring surface of the pressure sensor will not be flush, and the clamping stability will be low due to the different contact materials. At the same time, the pressure after clamping cannot be accurately adjusted and measured.
[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content
[0006] The purpose of this utility model is to provide a milling fixture with pressure adjustment function. The technical problem to be solved is as follows: existing milling fixtures have problems such as unstable clamping and inability to quantitatively adjust the clamping pressure during use.
[0007] The objective of this utility model can be achieved through the following technical solutions:
[0008] A milling fixture with pressure adjustment function includes a base plate, auxiliary pressure mechanisms installed on both sides of the top of the base plate, a main pressure mechanism installed in the middle of the top of the base plate, multiple sets of adjustment holes provided on both sides of the top of the base plate, pressure sensors embedded on both sides of the main pressure mechanism, and a display installed on one side of the main pressure mechanism on the top of the base plate. Both pressure sensors are electrically connected to the display, which displays the pressure values of the two pressure sensors. The pressure values on both sides of the main pressure mechanism are adjustable.
[0009] As a further embodiment of this utility model: the auxiliary pressure mechanism includes an auxiliary clamp block, two locking bolts are inserted into the top of the auxiliary clamp block, the adjustment hole is threadedly connected to the adjacent locking bolt, a side plate is installed on one side of the auxiliary clamp block, a second locking bolt is installed between the side plate and the auxiliary clamp block, and an adjustment groove is provided on one side of the side plate.
[0010] As a further embodiment of this utility model: the main pressure mechanism includes a pressure adjusting bolt threaded to the middle of the top of the base plate, the top of the pressure adjusting bolt is provided with an internal hexagonal hole, a pressure block is slidably connected to the middle of the pressure adjusting bolt, and a limiting inclined surface that gradually moves downwards is symmetrically arranged between the two sides of the pressure block. The limiting inclined surface is engaged with a main pressure seat, and an anti-detachment column is fixedly connected to the middle of the limiting inclined surface. The main pressure seat is adapted to the anti-detachment column and is provided with an anti-detachment groove.
[0011] As a further embodiment of this utility model: the main pressure seat has an embedded groove on the side away from the anti-detachment column, the pressure sensor is inserted into the embedded groove, and four guide holes are evenly arranged along the edge on one side of the main pressure seat, with a main pressure plate slidably connected between each guide hole.
[0012] As a further embodiment of this utility model: a guide post is provided on one side of the main pressure plate to adapt to the adjacent guide hole, and an anti-detachment plate is provided at the end of the guide post. The anti-detachment plate is slidably connected to the interior of the adjacent guide hole, and the inner side of the main pressure plate abuts against the pressure measuring plate of the pressure sensor.
[0013] As a further aspect of this invention, the length of the guide post is greater than the thickness of the pressure sensor.
[0014] The beneficial effects of this utility model are:
[0015] By installing auxiliary pressure mechanisms on both sides of the base plate and moving the installation position of the auxiliary pressure mechanisms through the adjustment holes, and adjusting the side plate on the side of the auxiliary pressure mechanism, a preliminary positioning of the vertical surfaces on both sides of the workpiece is formed. Then, the operator adjusts the outward pushing degree of the pressure block on both sides of the main pressure seat by adjusting the thread depth between the main pressure adjustment bolt and the base plate, so as to realize the clamping function of the workpiece.
[0016] Furthermore, when clamping the workpiece, the main pressure plate is pushed, which in turn presses against the pressure sensor in the inner cavity of the main pressure seat. The pressure value of the pressure sensor can be displayed in real time by an electrically connected display. The operator can then adjust the clamping pressure value of the workpiece by adjusting the depth of the secondary fine-tuning pressure adjusting bolt, thereby realizing the function of visual adjustment of the workpiece clamping pressure. Moreover, when clamping the workpiece, direct contact between the pressure sensor and the workpiece can be avoided, thereby improving the stability of clamping. At the same time, the embedded pressure sensor is in a state that can be easily disassembled and installed, facilitating its subsequent maintenance. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a partial enlarged view of the auxiliary pressure mechanism of this utility model;
[0020] Figure 3 This is an exploded view of this utility model;
[0021] Figure 4 This is a utility model Figure 3 A magnified view of the details at point A in the middle.
[0022] In the diagram: 1. Base plate; 2. Auxiliary pressure mechanism; 21. Auxiliary clamp block; 22. Locking bolt one; 23. Side plate; 24. Locking bolt two; 25. Adjustment groove; 3. Main pressure mechanism; 31. Pressure adjusting bolt; 32. Pressure block; 33. Limiting inclined surface; 34. Main pressure seat; 35. Anti-detachment column; 36. Anti-detachment groove; 37. Embedded groove; 38. Guide hole; 39. Main pressure plate; 4. Adjustment hole; 5. Pressure sensor; 6. Display. Detailed Implementation
[0023] 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 scope of protection of the present utility model.
[0024] like Figures 1 to 4 As shown, a milling fixture with pressure adjustment function includes a base plate 1. Auxiliary pressure mechanisms 2 are installed on both sides of the top of the base plate 1, and a main pressure mechanism 3 is installed in the middle of the top of the base plate 1. Five sets of adjustment holes 4 are provided on both sides of the top of the base plate 1. The adjustment holes 4 are used to switch the installation position of the auxiliary pressure mechanisms 2. Pressure sensors 5 are embedded on both sides of the main pressure mechanism 3. A display 6 is installed on one side of the main pressure mechanism 3 at the top of the base plate 1. Both pressure sensors 5 are electrically connected to the display 6. The display 6 is used to display the pressure values of the two pressure sensors 5, and the pressure values on both sides of the main pressure mechanism 3 are adjustable.
[0025] It should be noted that the base plate 1 is a corrosion-resistant coated steel structure with a thickness of more than three centimeters, and the bottom surface is provided with anti-slip texture to maintain its stability during use.
[0026] The auxiliary pressure mechanism 2 includes an auxiliary clamp block 21. Two locking bolts 22 are inserted into the top of the auxiliary clamp block 21. There are two adjustment holes 4, which correspond to the adjacent locking bolts 22 in the vertical direction. The bottom of the locking bolts 22 is threaded to the adjustment holes 4. A side plate 23 is installed on one side of the auxiliary clamp block 21. Locking bolts 24 are installed between the side plate 23 and the auxiliary clamp block 21. An adjustment groove 25 is provided on one side of the side plate 23.
[0027] It should be noted that when clamping the workpiece, the workpiece needs to be placed at the top of the base plate 1 first. Then, the position of the workpiece is initially positioned by adjusting the position of the auxiliary pressure mechanism 2. Then, the main pressure mechanism 3 is adjusted for final clamping. Therefore, the locking bolt 22 is first removed from the adjustment hole 4. Then, the installation position of the adjustment hole 4 of the auxiliary clamp block 21 is adjusted according to the diameter of the workpiece. Then, the workpiece is placed on the upper surface of the base plate 1 and one side is attached to the inner side of the auxiliary clamp block 21. Then, the installation position of the side plate 23 is adjusted according to the diameter of the workpiece, and the vertical side of the workpiece relative to the contact surface of the auxiliary clamp block 21 is attached to the inner side of the side plate 23. This completes the initial positioning of the workpiece. In this process, since the positions of the side and top edges of the auxiliary pressure mechanism 2 are adjustable, when it is used in conjunction with the relatively fixed main pressure mechanism 3 to clamp the workpiece, it can achieve stable clamping of workpieces of different specifications, thereby improving the adaptability of clamping different workpieces.
[0028] like Figure 3 and Figure 4 As shown, the main pressure mechanism 3 includes a pressure adjusting bolt 31 threadedly connected to the top center of the base plate 1. The top of the pressure adjusting bolt 31 is provided with an internal hexagonal hole. The pressure block 32 is slidably connected to the middle of the pressure adjusting bolt 31. The pressure block 32 is symmetrically provided with downwardly approaching limiting slopes 33 on both sides. The limiting slopes 33 are engaged with the main pressure seat 34. The limiting slopes 33 are fixedly connected to the middle of the limiting slopes 33. The main pressure seat 34 is adapted to the anti-detachment column 35 and is provided with an anti-detachment groove 36.
[0029] An embedded slot 37 is provided on the side of the main pressure seat 34 away from the anti-detachment column 35. The pressure sensor 5 is inserted into the embedded slot 37. Four guide holes 38 are evenly arranged along the edge on one side of the main pressure seat 34. The main pressure plate 39 is slidably connected between the guide holes 38.
[0030] A guide post is provided on one side of the main pressure plate 39 to adapt to each adjacent guide hole 38. The length of the guide post is greater than the thickness of the pressure sensor 5. An anti-detachment plate is provided at the end of the guide post. The anti-detachment plate is limited to slide inside the adjacent guide hole 38. The inner side of the main pressure plate 39 abuts against the pressure measuring plate of the pressure sensor 5.
[0031] It should be noted that after the workpiece is initially positioned at the auxiliary pressure mechanism 2 on both sides of the base plate 1, the operator inserts a hex wrench into the internal hexagonal hole of the pressure adjusting bolt 31, which then moves the pressure adjusting bolt 31, which is threaded to the base plate 1, downward, along with the pressure block 32. As the top width of the pressure block 32 gradually widens, it pushes the main pressure seats 34 on both sides closer to the workpiece until the main pressure plate 39 abuts against the workpiece. At this time, all three sides of the workpiece are in a positioning state, thus achieving the locking function of the workpiece. After locking, the workpiece presses against the main pressure plate 39, and the inner side of the main pressure plate 39 presses against the embedded pressure sensor 5. The pressure value of the pressure sensor 5 can be displayed on the display 6. Then, the vertical position of the pressure adjusting bolt 31 can be finely adjusted to adjust the workpiece pressure, thus achieving the visual adjustment function of the workpiece pressure. In addition, since the length of the guide post is greater than the thickness of the pressure sensor 5, the pressure sensor 5 can be removed from the embedded slot 37 for easy subsequent maintenance.
[0032] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.
Claims
1. A milling fixture with pressure adjustment function, comprising a base plate (1), wherein auxiliary pressure mechanisms (2) are installed on both sides of the top end of the base plate (1), a main pressure mechanism (3) is installed in the middle of the top end of the base plate (1), and multiple sets of adjustment holes (4) are provided on both sides of the top end of the base plate (1), characterized in that, Pressure sensors (5) are embedded on both sides of the main pressure mechanism (3). A display (6) is installed on the top of the base plate (1) on one side of the main pressure mechanism (3). Both pressure sensors (5) are electrically connected to the display (6). The display (6) is used to display the pressure values of the two pressure sensors (5). The pressure values on both sides of the main pressure mechanism (3) are adjustable.
2. A milling fixture with pressure adjustment function according to claim 1, characterized in that, The auxiliary pressure mechanism (2) includes an auxiliary clamp block (21). Two locking bolts (22) are inserted into the top of the auxiliary clamp block (21). The adjustment hole (4) is threadedly connected to the adjacent locking bolt (22). A side plate (23) is installed on one side of the auxiliary clamp block (21). A locking bolt (24) is installed between the side plate (23) and the auxiliary clamp block (21). An adjustment groove (25) is provided on one side of the side plate (23).
3. A milling fixture with pressure adjustment function according to claim 1, characterized in that, The main pressure mechanism (3) includes a pressure adjusting bolt (31) threaded to the middle of the top of the base plate (1). The top of the pressure adjusting bolt (31) is provided with an internal hexagonal hole. A pressure block (32) is slidably connected to the middle of the pressure adjusting bolt (31). A gradually downward limiting inclined surface (33) is symmetrically arranged between the two sides of the pressure block (32). The limiting inclined surface (33) is engaged with a main pressure seat (34). An anti-detachment column (35) is fixedly connected to the middle of the limiting inclined surface (33). The main pressure seat (34) is adapted to the anti-detachment column (35) and is provided with an anti-detachment groove (36).
4. A milling fixture with pressure adjustment function according to claim 3, characterized in that, The main pressure seat (34) has an embedded groove (37) on the side away from the anti-detachment column (35). The pressure sensor (5) is inserted into the embedded groove (37). Four guide holes (38) are evenly arranged along the edge on one side of the main pressure seat (34). A main pressure plate (39) is slidably connected between each of the guide holes (38).
5. A milling fixture with pressure adjustment function according to claim 4, characterized in that, The main pressure plate (39) is fitted with a guide post on one side of the adjacent guide hole (38), and an anti-detachment plate is provided at the end of the guide post. The anti-detachment plate is slidably connected to the interior of the adjacent guide hole (38). The inner side of the main pressure plate (39) abuts against the pressure measuring plate of the pressure sensor (5).
6. A milling fixture with pressure adjustment function according to claim 5, characterized in that, The length of the guide post is greater than the thickness of the pressure sensor (5).