Supporting tool for forge piece finish machining

Abstract

The utility model relates to a supporting tool for forge piece finish machining. Comprising a supporting table, a check block abutting against a forge piece, a pressing device used for pressing the forge piece, a moving assembly used for driving the check block to move, a bending supporting plate close to the moving assembly, a rack arranged at the top end of the bending supporting plate and a dustproof cover used for covering the moving assembly. A sliding groove is formed in one side of the top of the supporting table. Two groups of moving assemblies which are symmetrically placed are connected to the sliding groove in a sliding manner; the output ends of the two moving assemblies are engaged with the rack. Stop blocks are connected to the two moving assemblies; pressing devices are mounted at the tops of the two groups of stop blocks; the bending supporting plate is installed at one end of the supporting table. The technical problems that in the prior art, a supporting tool for forge piece finish machining is poor in synchronism when multiple check blocks are independently driven in practical application, forge pieces are stressed unevenly, a buffering structure is simple in design, high-frequency vibration cannot be effectively attenuated, and meanwhile pollutants are difficult to completely isolate due to the fact that most dustproof measures are local covers are solved.

Description

Technical Field

[0001] This utility model relates to the field of forging precision machining equipment, and in particular to a support fixture for forging precision machining. Background Technology

[0002] Precision machining of forgings is a core step in mechanical manufacturing to ensure the dimensional accuracy and surface quality of parts. Its process level directly determines the assembly reliability and service performance of the product. Traditional forging support fixtures mostly employ rigid frames and fixed stop structures, using bolt locking or hydraulic clamping to achieve workpiece positioning. However, with the surge in demand for complex, irregularly shaped forgings in aerospace, precision molds, and other fields, the limitations of such fixtures are becoming increasingly apparent.

[0003] Insufficient adjustment flexibility: Traditional stop block positions rely on manual adjustment, requiring repeated disassembly of bolts and calibration with measuring tools, which is time-consuming and makes it difficult to ensure symmetry. Especially when machining curved surfaces or asymmetrical forgings, operators need to make multiple trials and errors to achieve centering, severely restricting production efficiency;

[0004] Clamping stability defects: The rigid clamping device lacks a buffer mechanism. During high-speed milling or grinding, machine tool vibration is easily transmitted to the surface of the forging, resulting in damage such as indentations and micro-cracks, which affects the finished product qualification rate.

[0005] Poor environmental adaptability: Open transmission mechanisms (such as lead screws and gears) are exposed to the machining environment for a long time. Metal chips and coolant can easily enter the meshing parts, accelerate component wear, and cause positioning accuracy to decrease or even jamming failure.

[0006] Limited versatility: Single-sized stops and clamping devices are difficult to adapt to forgings of different thicknesses or curvatures, requiring frequent replacement of fixture components, increasing equipment downtime and maintenance costs;

[0007] Lack of positioning reference: Most tooling does not integrate quick positioning marks, and operators need to rely on external measuring tools to repeatedly calibrate the workpiece center, which poses a high risk of human error.

[0008] While existing improvement solutions attempt to introduce electric drives or elastic pressure heads, key bottlenecks remain: for example, poor synchronization when multiple stops are driven independently leads to uneven stress on the forgings; the simple design of the buffer structure (such as a single spring) cannot effectively attenuate high-frequency vibrations; and dust prevention measures are mostly partial covers, making it difficult to completely isolate contaminants. Furthermore, traditional tooling lacks modular design, requiring complete disassembly for maintenance and upgrades, further increasing usage costs. Utility Model Content

[0009] This application provides a support fixture for finishing forgings, which solves the technical problems of existing support fixtures for finishing forgings in practical applications, such as poor synchronization when multiple blocks are driven independently, resulting in uneven force on the forgings, simple buffer structure design that cannot effectively attenuate high-frequency vibrations, and dust prevention measures that are mostly partial covers that are difficult to completely isolate pollutants.

[0010] The technical solution adopted in the embodiments of this application is as follows:

[0011] A support fixture for finishing forgings includes a support platform, a stop block for abutting the forging, a clamping device for pressing the forging, a moving component for moving the stop block, a bent support plate disposed near the moving component, a rack disposed at the top of the bent support plate, and a dust cover for covering the moving component. A groove is formed on one side of the top of the support platform; two sets of symmetrically arranged moving components are slidably connected to the groove; the output ends of both sets of moving components are engaged with the rack; the stop block is connected to each set of moving components; the clamping device is installed on the top of each set of stop blocks; the bent support plate is installed at one end of the support platform; and the dust cover is installed at the top of the bent support plate.

[0012] A further technical solution is as follows: the moving component includes a gear, a slider sliding on the slide groove, and a first driving device mounted on the top of the slider; the gear is disposed on the output shaft of the first driving device; the stop is disposed on the slider; and the gear is meshed with the rack.

[0013] A further technical solution is as follows: the clamping device includes a support base, a fixing member for fixing the support base, a pressure block for clamping the forging, a buffer member for buffering the pressure block, a connecting block for driving the pressure block to rise and fall, and a second driving device installed on the top of the support base; the top of the stop block has several sets of threaded holes arranged in a linear array; the support base is installed on the top of the stop block through two sets of the fixing members; the buffer member is provided between the pressure block and the connecting block; the connecting block is located at the driving end of the second driving device.

[0014] A further technical solution is as follows: the buffer includes a spring, a telescopic rod, and a damping pad; the damping pad is disposed on the connecting block; the spring is disposed around the telescopic rod; the telescopic end of the telescopic rod is connected to the pressure block; the other end of the telescopic rod is connected to the damping pad; one end of the spring is connected to the pressure block; the other end of the spring is connected to the damping pad.

[0015] A further technical solution is that a cross positioning line is provided at the center of the top of the support platform.

[0016] A further technical solution is that the support platform has several sets of rectangular openings arranged in a rectangular array.

[0017] A further technical solution is that the first driving device is a servo motor.

[0018] A further technical solution is that the second driving device is a cylinder.

[0019] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0020] 1. By employing a support platform, stop blocks, clamping devices, moving components, bending support plates, racks, and dust covers, the synchronous bidirectional movement of the stop blocks is achieved through the meshing transmission of gears and racks combined with two sets of symmetrically arranged moving components. This solves the problems of low efficiency and large positioning deviations in traditional tooling manual adjustment, ensuring rapid and accurate centering of forgings. The clamping device's buffer components (including springs, telescopic rods, and damping pads) absorb processing vibrations through multi-stage buffering, preventing surface damage to forgings caused by rigid impacts from the clamping blocks. This is particularly suitable for the flexible clamping of thin-walled or high-precision forgings. The dust cover and bending support plates form a closed protective structure, preventing metal debris and coolant from entering the meshing area of ​​the gears and racks, significantly extending the... The long service life of the moving components; the crosshair positioning line on the top of the support platform, in conjunction with the slide groove, provides operators with a quick visual positioning reference, reducing manual measurement time and improving clamping efficiency; the multiple threaded holes on the top of the stop block allow the support seat to be adjusted in installation position via fixing components, combined with the linear drive of the second drive device (cylinder), adapting to the clamping requirements of forgings of different heights; the rectangular opening array of the support platform ensures structural strength while optimizing the chip discharge path, preventing the accumulation of machining waste from affecting positioning accuracy; the combined drive mode of the first drive device (servo motor) and the second drive device (cylinder) balances the accuracy of the stop block movement with the dynamic control of the clamping force, meeting the stability requirements of complex machining conditions. This fixture simplifies maintenance procedures through modular design (such as a removable dust cover and an adjustable support seat), and utilizes the synergistic effect of rack and pinion synchronous transmission and buffer clamping to reduce clamping time and scrap rate in high-precision forging machining in aerospace, automotive mold and other fields. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a support fixture for finishing forgings according to an embodiment of the present invention.

[0022] Figure 2 This is a partial structural diagram illustrating the moving component in an embodiment of this utility model.

[0023] Figure 3 This is a partial structural schematic diagram illustrating the pressing device in an embodiment of this utility model.

[0024] In the diagram: 1. Support platform; 11. Slide groove; 2. Stop block; 3. Clamping device; 31. Support base; 32. Fixing component; 33. Pressure block; 34. Buffer component; 35. Connecting block; 36. Second drive device; 4. Moving component; 41. Gear; 42. Slider; 43. First drive device; 5. Bending support plate; 6. Rack; 7. Dust cover. Detailed Implementation

[0025] This application provides a support fixture for finishing forgings, which solves the technical problems of existing support fixtures for finishing forgings in practical applications, such as poor synchronization when multiple blocks are driven independently, resulting in uneven force on the forgings, simple buffer structure design that cannot effectively attenuate high-frequency vibrations, and dust prevention measures that are mostly partial covers that are difficult to completely isolate pollutants.

[0026] The technical solution in this application is to solve the above problems, and the overall approach is as follows:

[0027] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0028] A support fixture for finishing forgings, such as Figure 1 , Figure 2 and Figure 3 As shown, the assembly includes a support platform 1, a stop block 2 for abutting the forging, a clamping device 3 for pressing the forging, a moving component 4 for moving the stop block 2, a bent support plate 5 positioned near the moving component 4, a rack 6 positioned at the top of the bent support plate 5, and a dust cover 7 for covering the moving component 4. A slide groove 11 is provided on one side of the top of the support platform 1. Two sets of symmetrically arranged moving components 4 are slidably connected to the slide groove 11. The output ends of both sets of moving components 4 are meshed with the rack 6. A stop block 2 is connected to each set of moving components 4. A clamping device 3 is installed on the top of each set of stop blocks 2. The bent support plate 5 is installed at one end of the support platform 1. The dust cover 7 is installed at the top of the bent support plate 5.

[0029] The moving component 4 includes a gear 41, a slider 42 that slides on the slide groove 11, and a first drive device 43 mounted on the top of the slider 42; the gear 41 is disposed on the output shaft of the first drive device 43; the stop block 2 is disposed on the slider 42; and the gear 41 is meshed with the rack 6.

[0030] The clamping device 3 includes a support base 31, a fixing member 32 for fixing the support base 31, a clamping block 33 for clamping the forging, a buffer member 34 for buffering the clamping block 33, a connecting block 35 for driving the clamping block 33 to rise and fall, and a second driving device 36 installed on the top of the support base 31; the top of the stop block 2 has several sets of threaded holes arranged in a linear array; the support base 31 is installed on the top of the stop block 2 through two sets of fixing members 32; a buffer member 34 is provided between the clamping block 33 and the connecting block 35; the connecting block 35 is located at the driving end of the second driving device 36.

[0031] The buffer 34 includes a spring, a telescopic rod, and a damping pad; the damping pad is disposed on the connecting block 35; the spring is disposed around the telescopic rod; the telescopic end of the telescopic rod is connected to the pressure block 33; the other end of the telescopic rod is connected to the damping pad; one end of the spring is connected to the pressure block 33; the other end of the spring is connected to the damping pad.

[0032] A crosshair positioning line is set at the center of the top of the support platform 1.

[0033] The support platform 1 has several sets of rectangular openings arranged in a rectangular array.

[0034] The first drive unit 43 is a servo motor.

[0035] The second drive unit 36 ​​is a cylinder.

[0036] The support fixture for finishing this forging includes a support platform 1 with a groove 11 on one side of its top. Two symmetrically arranged moving components 4 are slidably connected to the groove 11 via sliders 42. Each moving component 4 includes a gear 41, a slider 42, and a first drive device 43. The gear 41 is mounted on the output shaft of the first drive device 43 and meshes with a rack 6 at the top of the bent support plate 5. A stop block 2 is fixed to the slider 42, and a clamping device 3 is mounted on its top via a fixing bolt 32. The clamping device 3 consists of a support base 31, a second drive device 36, a connecting block 35, and a pressure block 33. A buffer 34, including a spring, a telescopic rod, and a damping pad, is provided between the pressure block 33 and the connecting block 35. The support platform 1 has a cross-shaped positioning line at its center and rectangular openings arranged in a rectangular array on its surface. A dust cover 7 covers the moving components 4, and the bent support plate 5 is fixed to the end of the support platform 1. The first drive device 43 uses a servo motor, the second drive device 36 uses a cylinder, and the top of the stop block 2 has multiple sets of threaded holes for adjusting the position of the support base 31.

[0037] Operating procedures

[0038] Step 1: Place the forging at the center of the support platform 1 and quickly center it using the crosshair positioning line; Step 2: Start the first drive device 43, drive the gear 41 to move along the rack 6, and drive the two sets of stops 2 to move towards the forging synchronously until they abut; Step 3: Adjust the installation position of the support base 31 on the top of the stops 2 and lock it with the fixing part 32; Step 4: Start the second drive device 36, push the connecting block 35 down, and the pressure block 33 is buffered by the spring of the buffer part 34 and the damping pad, and then evenly presses the forging; Step 5: During the processing, the chips are discharged through the rectangular opening, and the dust cover 7 prevents the splashes from entering the gear 41; Step 6: After the processing is completed, reverse the drive of the first drive device 43 to reset the stops 2 and remove the forging.

[0039] Beneficial effects

[0040] By employing a support platform 1, a stop block 2, a clamping device 3, a moving assembly 4, a bent support plate 5, a rack 6, and a dust cover 7, the synchronous bidirectional movement of the stop block 2 is achieved through the meshing transmission of gear 41 and rack 6 combined with two symmetrically arranged moving assemblies 4. This solves the problems of low efficiency and large positioning deviation in traditional tooling manual adjustment, ensuring rapid and accurate centering of forgings. The buffer component 34 (including springs, telescopic rods, and damping pads) of the clamping device 3 absorbs processing vibrations through multi-stage buffering, preventing surface damage to forgings caused by rigid impacts from the clamping block 33. This is particularly suitable for the flexible clamping of thin-walled or high-precision forgings. The dust cover 7 and the bent support plate 5 form a closed protective structure, preventing metal debris and coolant from intruding into the meshing area of ​​gear 41 and rack 6. This fixture extends the service life of the moving component 4; the cross-shaped positioning line on the top of the support platform 1, in conjunction with the slide groove 11, provides operators with a quick visual positioning reference, reducing manual measurement time and improving clamping efficiency; the multiple sets of threaded holes on the top of the stop 2 allow the support base 31 to adjust its installation position via the fixing component 32, combined with the linear drive of the second drive device 36 (cylinder), adapting to the clamping requirements of forgings of different heights; the rectangular opening array of the support platform 1 ensures structural strength while optimizing the chip discharge path, preventing the accumulation of machining waste from affecting positioning accuracy; the combined drive mode of the first drive device 43 (servo motor) and the second drive device 36 (cylinder) balances the accuracy of the stop 2's movement with the dynamic control of the clamping force, meeting the stability requirements of complex machining conditions. This fixture simplifies maintenance procedures through modular design (such as the removable dust cover 7 and the adjustable support base 31), and utilizes the synergistic effect of rack and pinion synchronous transmission and buffer clamping to reduce clamping time and scrap rate in high-precision forging processing in aerospace, automotive molds, and other fields.

[0041] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0042] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A support fixture for finishing forgings, characterized in that, The device includes a support platform (1), a stop block (2) for abutting the forging, a clamping device (3) for clamping the forging, a moving component (4) for moving the stop block (2), a bent support plate (5) located near the moving component (4), a rack (6) located at the top of the bent support plate (5), and a dust cover (7) for covering the moving component (4). A sliding groove (11) is provided on one side of the top of the support platform (1). Two sets of the moving components (4) are slidably connected to the sliding groove (11). The output ends of the two sets of moving components (4) are meshed with the rack (6). The stop block (2) is connected to both sets of moving components (4). The clamping device (3) is installed on the top of both sets of stop blocks (2). The bent support plate (5) is installed at one end of the support platform (1). The dust cover (7) is installed at the top of the bent support plate (5).

2. The support fixture for finishing forgings as described in claim 1, characterized in that, The moving component (4) includes a gear (41), a slider (42) that slides on the slide groove (11), and a first drive device (43) mounted on the top of the slider (42); the gear (41) is disposed on the output shaft of the first drive device (43); the stop block (2) is disposed on the slider (42); the gear (41) is meshed with the rack (6).

3. The support fixture for finishing forgings as described in claim 2, characterized in that, The clamping device (3) includes a support base (31), a fixing member (32) for fixing the support base (31), a pressure block (33) for clamping the forging, a buffer member (34) for buffering the pressure block (33), a connecting block (35) for driving the pressure block (33) to rise and fall, and a second driving device (36) installed on the top of the support base (31); the top of the stop block (2) is provided with a plurality of threaded holes arranged in a linear array; the support base (31) is installed on the top of the stop block (2) through two sets of fixing members (32); the buffer member (34) is provided between the pressure block (33) and the connecting block (35); the connecting block (35) is provided at the driving end of the second driving device (36).

4. The support fixture for finishing forgings as described in claim 3, characterized in that, The buffer (34) includes a spring, a telescopic rod, and a damping pad; the damping pad is disposed on the connecting block (35); the spring is disposed around the telescopic rod; The telescopic end of the telescopic rod is connected to the pressure block (33); the other end of the telescopic rod is connected to the damping pad block; One end of the spring is connected to the pressure block (33); the other end of the spring is connected to the damping pad.

5. The support fixture for finishing forgings as described in claim 1, characterized in that, A cross positioning line is provided at the center of the top of the support platform (1).

6. The support fixture for finishing forgings as described in claim 1, characterized in that, The support platform (1) has several sets of rectangular openings arranged in a rectangular array.

7. The support fixture for finishing forgings as described in claim 2, characterized in that, The first driving device (43) is a servo motor.

8. The support fixture for finishing forgings as described in claim 3, characterized in that, The second drive device (36) is a cylinder.

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