Adjustable clamping tool and operation method

Abstract

The invention discloses an adjustable clamping tool and an operation method, and relates to the technical field of clamping tools.The adjustable clamping tool comprises a base, a bottom cover is fixedly installed on one side of the top of the base, a top cover is arranged above the bottom cover, a first clamping mechanism is arranged in the bottom cover, and the first clamping mechanism comprises a rotating part; the rotating pieces are rotatably mounted in the bottom cover, a first clamping wheel is mounted at one end of each rotating piece, a guide wheel is mounted at the other end of each rotating piece, a moving piece is slidably mounted in the bottom cover, and the rotating pieces are symmetrically distributed along the center line of the moving piece. Through cooperation between the first clamping mechanism and the driving mechanism, a regular cylindrical casting can be conveniently clamped, through cooperation between the driving mechanism and an electric cylinder, after the casting is machined, the driving mechanism works to release clamping of the casting, the electric cylinder gets close to the casting at the moment, the electric cylinder works to push the casting to move outwards, and the casting is clamped. And the function of facilitating discharging is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of clamping tooling, in particular to an adjustable clamping tooling and an operating method. Background Art

[0002] Fixtures are process devices used to quickly fasten workpieces during processing to keep the machine tool, tool and workpiece in the correct relative position. In other words, fixtures are indispensable components of mechanical processing. Driven by the development of machine tool technology towards high speed, high efficiency, precision, composite, intelligent and environmentally friendly directions, fixture technology is developing towards high precision, high efficiency, modular, combined, universal and economic directions. Fixtures are needed in the process of casting processing.

[0003] After searching the publication number CN219599274U, an adjustable clamping fixture device is found, including a base plate, a fixing seat fixed to the lower part of the base plate by a height adjustment device, and the base plate includes an outer protrusion arranged on the upper part of the base plate. The workpiece is placed between the pressure block and the fixing seat by pulling the pull rod and the pressure block is pressed against the fixing seat by the elastic force of the spring, thereby completing the positioning and clamping of the workpiece, and it is suitable for workpieces of different diameters. However, the stability of clamping the casting by the spring is low, the casting will move during the processing, and the processing accuracy is reduced. In addition, the above-mentioned fixture can only clamp relatively regular castings during use. When the external shape of the casting is irregular, it is difficult to clamp it. In addition, when the casting is clamped, it is inconvenient to push out the casting and it is inconvenient to unload the material.

[0004] Based on this, an adjustable clamping tool and an operating method are now provided, which can eliminate the disadvantages of the existing device. Summary of the invention

[0005] The object of the present invention is to provide an adjustable clamping fixture and an operating method to solve the problem in the background art that the clamping structure is unstable and inconvenient to clamp irregular castings.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An adjustable clamping tool comprises a base, a bottom cover is fixedly installed on the top side of the base, a top cover is provided above the bottom cover, a first clamping mechanism is provided inside the bottom cover, the first clamping mechanism comprises a rotating member, the rotating member is rotatably installed inside the bottom cover, a first clamping wheel is installed at one end of the rotating member, a guide wheel is installed at the other end of the rotating member, a moving member is slidably installed inside the bottom cover, the rotating member is symmetrically distributed along the center line of the moving member, guide surfaces are provided on both sides of the outside of the moving member, the outside of the guide wheel is in contact with the guide surface, a second clamping wheel is installed at one end of the moving member, and a driving mechanism is provided at the other end of the moving member.

[0008] On the basis of the above technical solution, the present invention also provides the following optional technical solution:

[0009] In an optional solution: the driving mechanism includes a first rack, the first rack is fixedly mounted on the other end of the moving part, a gear is meshedly connected above the first rack, a second rack is meshedly connected above the gear, and the second rack is slidably mounted on the top cover.

[0010] In an optional solution: fixed blocks are attached to both sides of the outside of the first rack, the fixed block and the bottom cover are fixedly installed, the fixed block and the gear are rotatably installed, a first motor is connected to a keyway at one end of the gear, and the first motor and the fixed block are fixedly installed.

[0011] In an optional solution: springs are fixedly mounted on both inner side walls of the bottom cover, and one end of the spring is fixedly mounted on the rotating member.

[0012] In an optional solution: an electric cylinder is fixedly mounted on one end of the second rack, a first cushion is provided at the output end of the electric cylinder, and a through hole is opened on one side of the outer side of the top cover.

[0013] In an optional solution: a moving mechanism is provided on the other side of the top of the base.

[0014] In an optional solution: the moving mechanism includes a mounting groove, which is opened on the top of the base, a screw rod is rotatably installed inside the mounting groove, a second motor is connected to the input end keyway of the screw rod, the second motor is fixedly installed on the base, and a second clamping mechanism is provided on the outside of the screw rod.

[0015] In an optional scheme: the second clamping mechanism includes a movable seat, the movable seat and the screw rod are threadedly connected, the movable seat is provided with a first sliding groove on the outside, the first rotating seat is slidably mounted on the outside of the movable seat through the first sliding groove, the first rotating seat is symmetrically provided with a second sliding groove on the outside, the second rotating seat is slidably mounted on the outside of the first rotating seat through the second sliding groove, the second rotating seat is symmetrically provided with a third sliding groove on the outside, the third rotating seat is slidably mounted on the outside of the second rotating seat through the third sliding groove, and a second soft pad is provided on the outside of the third rotating seat.

[0016] In an optional solution: the first sliding groove, the second sliding groove and the third sliding groove are all in the shape of a semicircular arc.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention facilitates the clamping of regular cylindrical castings through the cooperation between the first clamping mechanism and the driving mechanism. The two first clamping wheels and the second clamping wheels are used to clamp the castings, which facilitates the guiding and positioning of the castings and improves the clamping accuracy.

[0019] 2. The present invention cooperates with the driving mechanism and the electric cylinder. When the casting is processed, the driving mechanism releases the clamping of the casting. At this time, the electric cylinder approaches the casting and pushes the casting outward, thereby facilitating the unloading of the casting.

[0020] 3. The present invention facilitates the clamping of irregularly shaped castings through the cooperation of two first clamping wheels, a moving mechanism and a second clamping mechanism, thereby improving the adaptability of the clamping tooling and thus improving the processing efficiency of castings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the internal structure of the bottom cover of the present invention.

[0023] Figure 3 It is a schematic structural diagram of the first clamping mechanism of the present invention.

[0024] Figure 4 It is a schematic diagram of the driving mechanism structure of the present invention.

[0025] Figure 5 It is a schematic diagram of the structure of the mobile mechanism of the present invention.

[0026] Figure 6 It is a schematic structural diagram of the second clamping mechanism of the present invention.

[0027] Notes on figure markings: 1. base; 2. bottom cover; 3. top cover; 4. first clamping mechanism; 401. rotating member; 402. first clamping wheel; 403. guide wheel; 404. moving member; 405. guide surface; 406. second clamping wheel; 5. spring; 6. fixed block; 7. driving mechanism; 701. gear; 702. first rack; 703. second rack; 8. first motor; 9. electric cylinder; 10. first cushion; 11. through hole; 12. moving mechanism; 1201. mounting groove; 1202. lead screw; 1203. second motor; 13. second clamping mechanism; 1301. moving seat; 1302. first slide groove; 1303. first rotating seat; 1304. second slide groove; 1305. second rotating seat; 1306. third slide groove; 1307. third rotating seat; 1308. second cushion. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] In one embodiment, Figure 1-Figure 6 As shown, an adjustable clamping tool comprises a base 1, a bottom cover 2 is fixedly mounted on one side of the top of the base 1, a top cover 3 is arranged above the bottom cover 2, a first clamping mechanism 4 is arranged inside the bottom cover 2, the first clamping mechanism 4 comprises a rotating member 401, the rotating member 401 is rotatably mounted inside the bottom cover 2, a first clamping wheel 402 is mounted on one end of the rotating member 401, a guide wheel 403 is mounted on the other end of the rotating member 401, a moving member 404 is slidably mounted inside the bottom cover 2, the rotating member 401 is symmetrically distributed along the center line of the moving member 404, guide surfaces 405 are provided on both sides of the outside of the moving member 404, the outside of the guide wheel 403 is in contact with the guide surface 405, a second clamping wheel 406 is mounted on one end of the moving member 404, and a driving mechanism 7 is arranged on the other end of the moving member 404.

[0030] In this embodiment, when clamping a regular cylindrical casting, the casting is placed between the two first clamping wheels 402 and the second clamping wheel 406, and the first rack 702 drives the movable member 404 to move. Due to the cooperation between the guide surface 405 and the guide wheel 403, the two rotating members 401 rotate, the two first clamping wheels 402 approach the casting, and the movable member 404 drives the second clamping wheel 406 to approach the casting, thereby effectively clamping the casting.

[0031] In one embodiment, Figure 2-4 As shown, the driving mechanism 7 includes a first rack 702, which is fixedly mounted on the other end of the moving member 404, and a gear 701 is meshedly connected above the first rack 702, and a second rack 703 is meshedly connected above the gear 701, and the second rack 703 is slidably mounted on the top cover 3; the first rack 702 and the second rack 703 are moved in opposite directions by rotating the gear 701.

[0032] In one embodiment, Figure 2-4 As shown, fixing blocks 6 are attached to both sides of the outside of the first rack 702, the fixing block 6 and the bottom cover 2 are fixedly installed, the fixing block 6 and the gear 701 are rotatably installed, a first motor 8 is connected to a keyway at one end of the gear 701, and the first motor 8 and the fixing block 6 are fixedly installed; the fixing block 6 limits the movement of the first rack 702, and the first motor 8 drives the gear 701 to rotate.

[0033] In one embodiment, Figure 2 and Figure 3 As shown, springs 5 ​​are fixedly installed on both inner side walls of the bottom cover 2, and one end of the spring 5 is fixedly installed on the rotating member 401; the spring 5 plays a reset role, so that the guide wheel 403 and the guide surface 405 are always in contact with each other, effectively controlling the rotation of the rotating member 401.

[0034] In one embodiment, Figure 2 and Figure 4 As shown, an electric cylinder 9 is fixedly mounted on one end of the second rack 703, a first soft pad 10 is provided at the output end of the electric cylinder 9, and a through hole 11 is opened on the outer side of the top cover 3; after the casting is processed, the electric cylinder 9 drives the first soft pad 10 to pass through the through hole 11 through the top cover 3, and the first soft pad 10 contacts the casting, effectively pushing the casting out, making it convenient to cut the casting.

[0035] In one embodiment, Figure 1 and Figure 5 As shown, a moving mechanism 12 is provided on the other side of the top of the base 1 , and the moving mechanism 12 controls the movement of the second clamping mechanism 13 .

[0036] In one embodiment, Figure 1 and Figure 5 As shown, the moving mechanism 12 includes a mounting groove 1201, and the mounting groove 1201 is opened on the top of the base 1. A screw rod 1202 is rotatably installed inside the mounting groove 1201. The input end keyway of the screw rod 1202 is connected to a second motor 1203. The second motor 1203 is fixedly installed with the base 1. A second clamping mechanism 13 is arranged outside the screw rod 1202. The screw rod 1202 is driven to rotate by the operation of the second motor 1203, and the rotation of the screw rod 1202 drives the second clamping mechanism 13 to move.

[0037] In one embodiment, Figure 5 and Figure 6As shown, the second clamping mechanism 13 includes a moving seat 1301, the moving seat 1301 is threadedly connected to the screw rod 1202, the moving seat 1301 is provided with a first slide groove 1302 on the outside, a first rotating seat 1303 is slidably mounted on the outside of the moving seat 1301 through the first slide groove 1302, a second slide groove 1304 is symmetrically provided on the outside of the first rotating seat 1303, a second rotating seat 1305 is slidably mounted on the outside of the first rotating seat 1303 through the second slide groove 1304, and the second rotating seat 130 5 is symmetrically provided with a third slide groove 1306 on the outside, a third rotating seat 1307 is slidably installed on the outside of the second rotating seat 1305 through the third slide groove 1306, and a second soft pad 1308 is provided on the outside of the third rotating seat 1307. Through the cooperation of the first slide groove 1302 and the first rotating seat 1303, the cooperation of the second slide groove 1304 and the second rotating seat 1305, and the cooperation of the third slide groove 1306 and the third rotating seat 1307, the four second soft pads 1308 are all in contact with the irregular casting, thereby effectively clamping the irregular casting.

[0038] In one embodiment, Figure 6 As shown, the first slide groove 1302, the second slide groove 1304 and the third slide groove 1306 are all in the shape of a semicircular arc, which is convenient for clamping irregular castings.

[0039] The working principle of the present invention is: when clamping a regular cylindrical casting, the casting is placed between the two first clamping wheels 402 and the second clamping wheel 406, and the first motor 8 drives the gear 701 to rotate, and the gear 701 drives the first rack 702 to move toward the outside of the bottom cover 2, and the first rack 702 drives the moving part 404 to move. Due to the cooperation between the guide surface 405 and the guide wheel 403, the two rotating parts 401 rotate, the spring 5 is compressed, the two first clamping wheels 402 approach the casting, and the moving part 404 drives the second clamping wheel 406 to approach the casting, thereby effectively clamping the casting, and at the same time, the gear 701 drives the second rack 703 to move toward the inside of the bottom cover 2, and the second rack 703 drives the electric cylinder 9 to enter the inside of the bottom cover 2.

[0040] After the processing is completed, the first motor 8 rotates in the opposite direction, the gear 701 rotates to drive the first rack 702 to move toward the inside of the bottom cover 2, the first rack 702 drives the moving part 404 to move, due to the reset effect of the spring 5, the rotating part 401 rotates, the two first clamping wheels 402 move away from the casting, the moving part 404 drives the second clamping wheel 406 to enter the inside of the bottom cover 2, the clamping of the casting is released, and at the same time the gear 701 drives the second rack 703 to move, the second rack 703 drives the electric cylinder 9 to move to the outside of the bottom cover 2, and the electric cylinder 9 drives the first soft pad 10 to pass through the through hole 11 through the top cover 3, the first soft pad 10 contacts the casting, effectively pushes the casting out, and facilitates the blanking processing of the casting.

[0041] When it is necessary to clamp the irregular casting, the moving part 404 moves to the innermost part of the bottom cover 2, the two rotating parts 401 are opened to the maximum, and the casting is placed between the two first clamping wheels 402 and the second clamping mechanism 13, and the second motor 1203 drives the screw rod 1202 to rotate, and the rotation of the screw rod 1202 drives the moving seat 1301 to approach the casting, and through the cooperation of the first slide groove 1302 and the first rotating seat 1303, the cooperation of the second slide groove 1304 and the second rotating seat 1305, and the cooperation of the third slide groove 1306 and the third rotating seat 1307, the four second soft pads 1308 are all fitted with the irregular casting, thereby effectively clamping the irregular casting. After processing is completed, the second motor 1203 rotates in the opposite direction, and the moving seat 1301 is away from the casting.

[0042] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An adjustable clamping tool, comprising a base (1), a bottom cover (2) fixedly mounted on one side of the top of the base (1), a top cover (3) disposed above the bottom cover (2), a first clamping mechanism (4) disposed inside the bottom cover (2), characterized in that: The first clamping mechanism (4) comprises a rotating member (401), the rotating member (401) is rotatably mounted inside the bottom cover (2), a first clamping wheel (402) is mounted on one end of the rotating member (401), a guide wheel (403) is mounted on the other end of the rotating member (401), a moving member (404) is slidably mounted inside the bottom cover (2), the rotating member (401) is symmetrically distributed along the center line of the moving member (404), guide surfaces (405) are provided on both sides of the outside of the moving member (404), the outside of the guide wheel (403) is in contact with the guide surface (405), a second clamping wheel (406) is mounted on one end of the moving member (404), and a driving mechanism (7) is provided on the other end of the moving member (404).

2. The adjustable clamping fixture according to claim 1, characterized in that: The driving mechanism (7) comprises a first rack (702), the first rack (702) being fixedly mounted on the other end of the moving member (404), a gear (701) being meshedly connected above the first rack (702), a second rack (703) being meshedly connected above the gear (701), and the second rack (703) being slidably mounted on the top cover (3).

3. The adjustable clamping fixture according to claim 2, characterized in that: Fixed blocks (6) are attached to both sides of the outside of the first rack (702); the fixed block (6) and the bottom cover (2) are fixedly mounted; the fixed block (6) and the gear (701) are rotatably mounted; a first motor (8) is connected to a keyway at one end of the gear (701); and the first motor (8) and the fixed block (6) are fixedly mounted.

4. The adjustable clamping fixture according to claim 1, characterized in that: Springs (5) are fixedly mounted on both side walls inside the bottom cover (2), and one end of the spring (5) is fixedly mounted on the rotating member (401).

5. The adjustable clamping fixture according to claim 2, characterized in that: An electric cylinder (9) is fixedly mounted on one end of the second rack (703), a first soft pad (10) is provided at the output end of the electric cylinder (9), and a through hole (11) is provided on one side of the exterior of the top cover (3).

6. The adjustable clamping fixture according to claim 1, characterized in that: A moving mechanism (12) is provided on the other side of the top of the base (1).

7. The adjustable clamping fixture according to claim 6, characterized in that: The moving mechanism (12) comprises a mounting groove (1201), wherein the mounting groove (1201) is provided at the top of the base (1), a screw rod (1202) is rotatably mounted inside the mounting groove (1201), a second motor (1203) is connected to the input end keyway of the screw rod (1202), the second motor (1203) is fixedly mounted to the base (1), and a second clamping mechanism (13) is provided outside the screw rod (1202).

8. The adjustable clamping fixture according to claim 7, characterized in that: The second clamping mechanism (13) comprises a movable seat (1301), the movable seat (1301) and the screw rod (1202) are threadedly connected, the movable seat (1301) is provided with a first sliding groove (1302) on the outside, the first rotating seat (1303) is slidably mounted on the outside of the movable seat (1301) through the first sliding groove (1302), the first rotating seat (1303) is symmetrically provided with a second sliding groove (1304) on the outside, the first rotating seat (1303) is slidably mounted with a second rotating seat (1305) through the second sliding groove (1304), the second rotating seat (1305) is symmetrically provided with a third sliding groove (1306) on the outside, the second rotating seat (1305) is slidably mounted with a third rotating seat (1307) through the third sliding groove (1306), and the third rotating seat (1307) is provided with a second soft pad (1308) on the outside.

9. The adjustable clamping fixture according to claim 8, characterized in that: The first slide groove (1302), the second slide groove (1304) and the third slide groove (1306) are all semicircular in shape.

10. An operating method of the adjustable clamping tool according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: When clamping a regular cylindrical casting, place the casting between the two first clamping wheels (402) and the second clamping wheel (406), and drive the gear (701) to rotate through the operation of the first motor (8), and the gear (701) drives the first rack (702) to move toward the outside of the bottom cover (2), and the first rack (702) drives the moving part (404) to move. Due to the cooperation between the guide surface (405) and the guide wheel (403), the two rotating parts (401) rotate, the spring (5) is compressed, the two first clamping wheels (402) approach the casting, and the moving part (404) drives the second clamping wheel (406) to approach the casting, thereby effectively clamping the casting. At the same time, the gear (701) drives the second rack (703) to move toward the inside of the bottom cover (2), and the second rack (703) drives the electric cylinder (9) to enter the inside of the bottom cover (2); Step 2, after the processing is completed, the first motor (8) rotates in the opposite direction, the gear (701) rotates to drive the first rack (702) to move toward the inside of the bottom cover (2), the first rack (702) drives the moving part (404) to move, due to the reset effect of the spring (5), the rotating part (401) rotates, the two first clamping wheels (402) move away from the casting, the moving part (404) drives the second clamping wheel (406) to enter the inside of the bottom cover (2), the clamping of the casting is released, and at the same time the gear (701) drives the second rack (703) to move, the second rack (703) drives the electric cylinder (9) to move toward the outside of the bottom cover (2), the electric cylinder (9) drives the first soft pad (10) to pass through the through hole (11) and penetrate the top cover (3), the first soft pad (10) contacts the casting, effectively pushes the casting out, and facilitates the blanking process of the casting; Step 3: When the irregular casting needs to be clamped, the moving part (404) moves to the innermost part of the bottom cover (2), the two rotating parts (401) are opened to the maximum, and the casting is placed between the two first clamping wheels (402) and the second clamping mechanism (13). The second motor (1203) drives the screw rod (1202) to rotate, and the screw rod (1202) drives the moving seat (1301) to approach the casting. Through the cooperation of the first slide groove (1302) and the first rotating seat (1303), the cooperation of the second slide groove (1304) and the second rotating seat (1305), and the cooperation of the third slide groove (1306) and the third rotating seat (1307), the four second soft pads (1308) are all in contact with the irregular casting, thereby effectively clamping the irregular casting. After the processing is completed, the second motor (1203) rotates in the opposite direction, and the moving seat (1301) is away from the casting.

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