Machine tool press protection device

Abstract

The application discloses a machine tool stamping protection device and belongs to the machine tool stamping protection field. A cylinder is fixedly connected to the center of the upper surface of the inner surface of a stamping frame. The telescopic end of the cylinder is fixedly connected with a stamping upper die. The bottom of the inner surface of the stamping frame is provided with a driving mechanism. The front side of the driving mechanism is provided with a protection mechanism. The rear surface of the stamping frame is fixedly connected with a material placing rack. The bottom of the material placing rack is provided with a discharging mechanism. A plurality of stamping parts are stacked in the material placing rack. When the stamping parts are stamped, the first baffle, the second baffle and the third baffle separate the inside of the stamping frame from the outside, so that the stamping parts are prevented from being broken and the fragments are prevented from flying out to cause harm to the workers, thereby improving the safety of the device. Workers do not need to personally place the raw materials into the stamping grooves. The raw materials can be automatically conveyed to appropriate positions, the occurrence of safety accidents is avoided, and the working strength of the workers can be greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of machine tool stamping protection, and more specifically, to a machine tool stamping protection device. Background Technology

[0002] Stamping is a production technology that uses the power of conventional or special stamping equipment to directly deform sheet metal in a die, thereby obtaining product parts with a certain shape, size and performance.

[0003] Nowadays, most stamping machines equipped with protective devices have manually operated protective doors or plates. Many workers, for convenience and to save time, often leave these doors or plates open while operating the stamping machine. During the stamping process, the powerful pressure of the die can cause the stamped parts to shatter, and flying fragments can injure workers. Full automation of stamping processes is rare; most are still single-machine, manual operations. Because the operator's actions during the stamping process are repetitive and monotonous, it's easy to lose focus. If a worker makes a mistake while manually loading and unloading materials and fails to remove their hands from the stamping area in time, the stamped parts can injure the operator's hands. Summary of the Invention

[0004] 1. Technical problems to be solved

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a machine tool stamping protection device that can automatically close the baffle during stamping and automatically open the baffle after stamping is completed, so that workers do not need to put their hands into the stamping area, thus improving the safety of the device.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A machine tool stamping protection device includes a stamping frame, a cylinder fixedly connected to the center above the inner surface of the stamping frame, a stamping upper die fixedly connected to the telescopic end of the cylinder, a driving mechanism provided at the bottom of the inner surface of the stamping frame, a protective mechanism provided at the front side of the driving mechanism, a material rack fixedly connected to the rear surface of the stamping frame, a material unloading mechanism provided at the bottom of the material rack, and several stamped parts stacked inside the material rack.

[0009] The driving mechanism includes a work frame, a first motor is fixedly connected to the rear surface of the inner wall of the work frame, a threaded rod is fixedly connected to the output shaft of the first motor, a stamping die is movably connected to the outer surface of the threaded rod via threads, trapezoidal blocks are fixedly connected to both sides of the outer surface of the stamping die, limit blocks are fixedly connected to the bottom of the two trapezoidal blocks, a first baffle is abutted against the top of the rear side of the trapezoidal blocks, compression springs are fixedly connected to both sides of the upper surface of the first baffle, and a compression cavity is opened on the lower surface of the inner wall of the stamping frame to cooperate with the first baffle.

[0010] The protective mechanism includes two positioning posts fixed on both sides of the front surface of the stamping die. Two sets of positioning plates are fixedly connected to the outer surfaces of the two positioning posts. Second baffles are fixedly connected to the front sides of the two sets of positioning plates. Third baffles are slidably sleeved on the outer surfaces of the two second baffles. First hinge members are fixedly connected to the outer surfaces of the two third baffles. Second hinge members that are slidably sleeved on both sides of the stamping frame are movably sleeved on the outer surfaces of the two sets of first hinge members.

[0011] Furthermore, the stamping frame is welded to the outer surface of the work frame, and a cavity is opened on the upper surface of the work frame. One end of the threaded rod is connected to the cavity through a bearing.

[0012] Furthermore, the limiting block has a T-shaped cross-section, and T-shaped grooves that cooperate with the limiting block are provided on both sides of the upper surface of the work frame.

[0013] Furthermore, the lower surface of the trapezoidal block abuts against the upper surface of the work frame, and the lower surface of the first baffle is set as an arc surface that cooperates with the inclined surfaces on both sides of the trapezoidal block.

[0014] Furthermore, both the second and third baffles are arc-shaped structures, and the third baffle has a storage cavity inside that works in conjunction with the second baffle.

[0015] Furthermore, the feeding mechanism includes a second motor, the output shaft of the second motor is fixedly connected to a rotating shaft, and first bevel gears are fixedly sleeved on both sides of the outer surface of the rotating shaft. Second bevel gears are meshed with the sides of the two first bevel gears. Fixed shafts are fixedly sleeved at the center of the outer surfaces of the two second bevel gears. Main gears are fixedly sleeved on the outer surfaces of the two fixed shafts. Oppositely arranged lower racks and upper racks are meshed with the sides of the main gears. Support pads are fixedly connected to the opposite sides of the two lower racks, and separation pads are fixedly connected to the opposite sides of the two upper racks.

[0016] Furthermore, the fixed end of the second motor is fixedly connected to one side of the rear surface of the material rack via the first protrusion, and one end of the rotating shaft is connected to the second protrusion welded to the other side of the rear surface of the material rack via a bearing.

[0017] Furthermore, the inner walls of the material rack are provided with adjustment cavities on both sides for use with the main gear, lower rack and upper rack, and the material rack is provided with a vertical through cavity for use with the stamping part.

[0018] Furthermore, the fixed shaft movably passes through the inner wall of the material rack and is connected to the inner wall of the adjustment cavity through a bearing, and the lowest stamped part is located between the partition plate and the support plate.

[0019] 3. Beneficial Effects

[0020] Compared with the prior art, the advantages of this invention are:

[0021] (1) This solution separates the inside of the stamping machine frame from the outside by using the first baffle, the second baffle and the third baffle when the stamping part is being stamped, so as to prevent the stamping part from breaking and the fragments from flying out and causing injury to the workers, thereby improving the safety of the device.

[0022] (2) When the stamping die moves to the bottom of the material rack, the device can automatically unload the material. The worker only needs to add the stamping part to the material rack. The worker does not need to put the raw material into the stamping groove by himself. The material can be automatically transported to the appropriate position, avoiding the occurrence of safety accidents and greatly reducing the workload of the workers.

[0023] (3) When the lower die moves, the function of the lower die and the baffle is realized. There is no need to manually open or close the baffle, which is convenient to operate. Before the press is working, the baffle will block the stamping area until the stamping operation is completed. This avoids the accident caused by carelessness or mistakes when workers are engaged in repetitive work for a long time during the stamping operation, thus improving the safety performance.

[0024] (4) When the lower die of the stamping moves to the frontmost side, the second and third baffles will open, and the worker will be able to take out the stamped parts. This is to prevent workers from not following the operating procedures and trying to take out the stamped parts by reaching into the lower die of the stamping without turning off the stamping machine, which poses a certain safety hazard. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a cross-sectional view of the stamping frame and work stand in this invention;

[0027] Figure 3 This is a schematic diagram of the drive mechanism in this invention;

[0028] Figure 4 This is a schematic diagram of the protective mechanism in this invention;

[0029] Figure 5 This is a cross-sectional view of the first baffle and the second baffle in this invention;

[0030] Figure 6 This is a cross-sectional view of the material rack in this invention;

[0031] Figure 7 This is a schematic diagram of the feeding mechanism in this invention.

[0032] Explanation of the labels in the diagram:

[0033] 1. Stamping frame; 11. Cylinder; 12. Upper stamping die; 2. Drive mechanism; 21. Work frame; 22. First motor; 23. Threaded rod; 24. Lower stamping die; 25. Trapezoidal block; 251. First baffle; 252. Compression spring; 253. Compression chamber; 26. Limiting block; 3. Protective mechanism; 31. Positioning post; 32. Positioning plate; 33. Second baffle; 331. Third baffle; 332. First hinge; 333. Second hinge; 334. Storage chamber; 4. Material rack; 5. Unloading mechanism; 51. Second motor; 52. Rotating shaft; 53. First bevel gear; 54. Second bevel gear; 55. Fixed shaft; 56. Main gear; 57. Lower rack; 58. Upper rack; 59. Separating pad; 510. Support pad; 6. Stamped part. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0035] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used only for the descriptive purpose of the machine tool stamping protection device and should not be construed as indicating or implying relative importance.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within a compatible component. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] Example 1:

[0038] Please see Figure 1-7 A machine tool stamping protection device includes a stamping frame 1, a cylinder 11 fixedly connected to the center of the upper part of the inner surface of the stamping frame 1, a stamping upper die 12 fixedly connected to the telescopic end of the cylinder 11, a drive mechanism 2 provided at the bottom of the inner surface of the stamping frame 1, a protective mechanism 3 provided at the front side of the drive mechanism 2, a material rack 4 fixedly connected to the rear surface of the stamping frame 1, a material unloading mechanism 5 provided at the bottom of the material rack 4, and a number of stamped parts 6 stacked inside the material rack 4.

[0039] The drive mechanism 2 includes a work frame 21. A first motor 22 is fixedly connected to the rear surface of the inner wall of the work frame 21. A threaded rod 23 is fixedly connected to the output shaft of the first motor 22. A stamping die 24 is movably connected to the outer surface of the threaded rod 23 via threads. Trapezoidal blocks 25 are fixedly connected to both sides of the outer surface of the stamping die 24. Limit blocks 26 are fixedly connected to the bottom of both trapezoidal blocks 25. A first baffle 251 abuts against the top of the rear side of the trapezoidal blocks 25. Compression springs 252 are fixedly connected to both sides of the upper surface of the first baffle 251. A compression cavity 253 is opened on the lower surface of the inner wall of the stamping frame 1 to cooperate with the first baffle 251.

[0040] The protective mechanism 3 includes two positioning posts 31 fixed on both sides of the front surface of the lower die 24. Two sets of positioning plates 32 are fixedly connected to the outer surfaces of the two positioning posts 31 respectively. Second baffles 33 are fixedly connected to the front sides of the two sets of positioning plates 32 respectively. Third baffles 331 are slidably sleeved on the outer surfaces of the two second baffles 33. First hinge members 332 are fixedly connected to the outer surfaces of the two third baffles 331 respectively. Second hinge members 333 fixed on both sides of the stamping frame 1 are movably sleeved on the outer surfaces of the two sets of first hinge members 332 respectively.

[0041] Please see Figure 1-5The stamping frame 1 is welded to the outer surface of the work frame 21. A cavity is opened on the upper surface of the work frame 21. One end of the threaded rod 23 is connected to the cavity through a bearing. By starting the first motor 22, the stamping die 24 can be driven to move back and forth. When the stamping die 24 moves to the rear side, it can automatically feed the part, eliminating the need for manual placement of the stamped part 6 on the stamping die 24, thus reducing the workload of the workers. When the stamping die 24 moves to the middle, the stamping frame 1 performs stamping operation on the stamped part 6. When the stamping die 24 moves to the front side, it is convenient for the workers to directly remove the stamped part 6 from the stamping die 24.

[0042] Please see Figure 1-5 The limiting block 26 has a T-shaped cross-section. T-slots that mate with the limiting block 26 are provided on both sides of the upper surface of the work frame 21. The limiting block 26 moves on the work frame 21, ensuring the stability of the stamping die 24. The lower surface of the trapezoidal block 25 abuts against the upper surface of the work frame 21. The lower surface of the first baffle 251 is an arc surface that mates with the inclined surfaces on both sides of the trapezoidal block 25. The stamping die 24 lifts the first baffle 251 through the trapezoidal block 25. When the stamping die 24 is stamping, the first baffle 251 can shield the rear surface of the stamping frame 1, improving the protective performance of the device. The second baffle 33 and the third baffle 331 are both arc-shaped structures. The third baffle 331 has a storage cavity 334 inside that works with the second baffle 33. When the stamping die 24 moves backward, the first hinge 332 drives the second hinge 333 to move backward, and at the same time the second baffle 33 is retracted into the storage cavity 334.

[0043] Please see Figure 1 , Figure 6 and Figure 7The feeding mechanism 5 includes a second motor 51. The output shaft of the second motor 51 is fixedly connected to a rotating shaft 52. First bevel gears 53 are fixedly sleeved on both sides of the outer surface of the rotating shaft 52. Second bevel gears 54 are meshed with the sides of the two first bevel gears 53. Fixed shafts 55 are fixedly sleeved at the center of the outer surfaces of the two second bevel gears 54. Main gears 56 are fixedly sleeved on the outer surfaces of the two fixed shafts 55. The sides of the main gears 56 are respectively meshed with opposing lower racks 57 and upper racks. The two lower racks 57 are fixedly connected to support plates 510 on opposite sides, and the two upper racks 58 are fixedly connected to partition plates 59 on opposite sides. The fixed end of the second motor 51 is fixedly connected to one side of the rear surface of the material rack 4 via a first protrusion. One end of the rotating shaft 52 is connected to a second protrusion welded to the other side of the rear surface of the material rack 4 via a bearing. Adjustment cavities for use with the main gear 56, lower rack 57, and upper rack 58 are opened on both sides of the inner wall of the material rack 4. A vertical through cavity for use with the stamping part 6 is opened inside the material rack 4. The fixed shaft 55 moves through the inner wall of the material rack 4 and is connected to the inner wall of the adjustment cavity via a bearing. The stamping part 6 located at the bottom is between the partition plate 59 and the support plate 510. The second motor 51 is started to reverse. The second motor 51 drives the first bevel gear 53 to rotate via the rotating shaft 52. The first bevel gear 53 drives the fixed shaft 55 to rotate via the second bevel gear 54. The fixed shaft 55 drives the lower bevel gear 56 to rotate via the main gear 56. The rack 57 and the upper rack 58 move relative to each other. The upper rack 58 drives the separating plate 59 to move outward, and the lower rack 57 drives the supporting plate 510 to move inward. As a result, the stamped part 6 falls onto the supporting plate 510. The second motor 51 is then controlled to rotate forward. The upper rack 58 drives the separating plate 59 to move inward, separating the lowermost stamped part 6 from the other stamped parts 6. The lower rack 57 drives the supporting plate 510 to move outward, and the stamped part 6 falls onto the lower stamping die 24.

[0044] Please see Figure 1-7In use, the operator first places the stamped part 6 into the material rack 4, then starts the first motor 22 in reverse. The first motor 22 drives the stamping die 24 to move backward through the threaded rod 23 until the stamping die 24 is directly below the material rack 4. The stamping die 24 pushes up the first baffle 251 through the trapezoidal block 25. The first baffle 251 retracts into the compression chamber 253 and compresses the compression spring 252. Then, the second motor 51 is started in reverse. The second motor 51 drives the first bevel gear 53 to rotate through the rotating shaft 52. The first bevel gear 53 drives the fixed shaft through the second bevel gear 54. Rotation of 55 causes the fixed shaft 55 to drive the lower rack 57 and upper rack 58 to move relative to each other via the main gear 56. Specifically, the upper rack 58 drives the separating plate 59 to move outward, and the lower rack 57 drives the supporting plate 510 to move inward, causing the stamped part 6 to fall onto the supporting plate 510. This controls the second motor 51 to rotate forward. The upper rack 58 then drives the separating plate 59 to move inward, separating the lower stamped part 6 from the other stamped parts 6. The lower rack 57 drives the supporting plate 510 to move outward, causing the stamped part 6 to fall onto the stamping die 24. This controls the first motor 22 to rotate forward. Motor 22 drives the lower stamping die 24 forward via threaded rod 23 until it moves directly below the upper stamping die 12. The first baffle 251, under the action of compression spring 252, abuts against the upper surface of trapezoidal block 25, protecting the rear side of the stamping frame 1. Simultaneously, the lower stamping die 24 drives the positioning plate 32 to move via positioning pin 31. The positioning plate 32 drives the second baffle 33 to extend out of the receiving cavity 334. At the same time, the first hinge 332 drives the second hinge 333 to slide on the outer surface of the stamping frame 1 until the second hinge 333 moves to the foremost position. Then, the third baffle 3... 31 Through the cooperation of the first hinge 332 and the second hinge 333, the second baffle 33 and the third baffle 331 are opened, thereby protecting the front side of the stamping machine frame 1. The cylinder 11 is started, and the cylinder 11 stamps the stamped part 6 through the upper stamping die 12. After the stamping is completed, the first motor 22 rotates forward. The first motor 22 drives the lower stamping die 24 to move forward through the threaded rod 23. The lower stamping die 24 drives the positioning plate 32 to move through the positioning pin 31. The positioning plate 32 pushes the second baffle 33 to open, so that the workers can directly remove the stamped part 6 from the lower stamping die 24.

[0045] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A machine tool stamping protection device, comprising a stamping frame (1), a cylinder (11) fixedly connected at the center above the inner surface of the stamping frame (1), and a stamping upper die (12) fixedly connected to the telescopic end of the cylinder (11), characterized in that: The inner surface of the stamping frame (1) is provided with a drive mechanism (2), the front side of the drive mechanism (2) is provided with a protective mechanism (3), the rear surface of the stamping frame (1) is fixedly connected with a material rack (4), the bottom of the material rack (4) is provided with a feeding mechanism (5), and several stamped parts (6) are stacked inside the material rack (4). The feeding mechanism (5) includes a second motor (51), the output shaft of the second motor (51) is fixedly connected to a rotating shaft (52), the outer surfaces of the rotating shaft (52) are fixedly sleeved with first bevel gears (53) on both sides, the two first bevel gears (53) are meshed with second bevel gears (54) on both sides, the outer surfaces of the two second bevel gears (54) are fixedly sleeved with fixed shafts (55) at the center, the outer surfaces of the two fixed shafts (55) are fixedly sleeved with main gears (56), the sides of the main gears (56) are meshed with opposing lower racks (57) and upper racks (58), the opposite sides of the two lower racks (57) are fixedly connected with support pads (510), and the opposite sides of the two upper racks (58) are fixedly connected with partition pads (59). The drive mechanism (2) includes a work frame (21), a first motor (22) is fixedly connected to the rear surface of the inner wall of the work frame (21), a threaded rod (23) is fixedly connected to the output shaft of the first motor (22), a stamping die (24) is movably connected to the outer surface of the threaded rod (23) through a thread, trapezoidal blocks (25) are fixedly connected to both sides of the outer surface of the stamping die (24), limit blocks (26) are fixedly connected to the bottom of the two trapezoidal blocks (25), a first baffle (251) is abutted against the top of the rear side of the trapezoidal block (251), compression springs (252) are fixedly connected to both sides of the upper surface of the first baffle (251), and a compression cavity (253) is opened on the lower surface of the inner wall of the stamping frame (1) to cooperate with the first baffle (251). The lower surface of the trapezoidal block (25) abuts against the upper surface of the work frame (21), and the lower surface of the first baffle (251) is set as an arc surface that cooperates with the inclined surfaces on both sides of the trapezoidal block (25). The protective mechanism (3) includes two positioning posts (31) fixed on both sides of the front surface of the lower die (24). Two sets of positioning plates (32) are fixedly connected to the outer surfaces of the two positioning posts (31). Second baffles (33) are fixedly connected to the front sides of the two sets of positioning plates (32). Third baffles (331) are slidably sleeved on the outer surfaces of the two second baffles (33). First hinges (332) are fixedly connected to the outer surfaces of the two third baffles (331). Second hinges (333) are movably sleeved on the outer surfaces of the two sets of first hinges (332) and slidably sleeved on both sides of the stamping frame (1). The second baffle (33) and the third baffle (331) are both arc-shaped structures. The third baffle (331) has a storage cavity (334) inside that works in conjunction with the second baffle (33).

2. The machine tool stamping protection device according to claim 1, characterized in that: The stamping frame (1) is welded to the outer surface of the work frame (21). A cavity is provided on the upper surface of the work frame (21), and one end of the threaded rod (23) is connected to the cavity through a bearing.

3. The machine tool stamping protection device according to claim 1, characterized in that: The limiting block (26) has a T-shaped cross section, and the upper surface of the work frame (21) is provided with T-shaped grooves on both sides to cooperate with the limiting block (26).

4. The machine tool stamping protection device according to claim 1, characterized in that: The fixed end of the second motor (51) is fixedly connected to one side of the rear surface of the material rack (4) through the first protrusion, and one end of the rotating shaft (52) is connected to the second protrusion welded to the other side of the rear surface of the material rack (4) through the bearing.

5. A machine tool stamping protection device according to claim 4, characterized in that: The inner walls of the material rack (4) are provided with adjustment cavities on both sides for use with the main gear (56), the lower rack (57) and the upper rack (58). The material rack (4) is provided with a vertical through cavity for use with the stamping part (6).

6. A machine tool stamping protection device according to claim 5, characterized in that: The fixed shaft (55) moves through the inner wall of the material rack (4) and is connected to the inner wall of the adjustment cavity through a bearing. The stamped part (6) at the bottom is located between the partition plate (59) and the support plate (510).

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