Large forged and pressed part traceless clamping device

Abstract

A traceless clamping device for large forging and pressing parts relates to the technical field of auxiliary equipment for hot forging of the large forging and pressing parts, the clamping end of a clamping clamp is connected with a contact mechanism through a connecting mechanism, a limiting mechanism is mounted at the handheld end of the clamping clamp, and the traction end of the limiting mechanism is connected with the transmission end of the connecting mechanism; the number of the positioning frames is two, and the two positioning frames are located at the two handheld ends of the clamping clamp correspondingly and fixedly connected. According to the traceless clamping device for the large forged and pressed part, the contact end of the contact mechanism is always parallel to the surface of a steel billet through the connecting mechanism, meanwhile, the force application position of the clamping clamp and the contact mechanism is adjusted through the connecting mechanism, the steel billet is conveniently clamped by the clamping clamp, and meanwhile, clamping marks are prevented from being left on the surface of the steel billet by the clamping clamp; the connecting mechanism is driven to work through the limiting mechanism, so that the position of the connecting mechanism on the contact mechanism is fixed, and the situation that the position of the connecting mechanism is changed when the steel billet is clamped, and consequently the steel billet falls off is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of auxiliary equipment for hot forging of large forgings, and in particular to a non-marking clamping device for large forgings. Background Art

[0002] Large forgings need to be adjusted in position or orientation of the billet by clamping clamps during the forging process. However, in the process of clamping the billet, the workers will use great force to operate the clamping clamps, resulting in the clamping ends of the clamps leaving clamp marks on the surface of the billet. The depths of these clamp marks are different, especially where the billet is close to the hinge of the clamp, where the depth of the clamp marks is the deepest. These clamp marks need to be eliminated by forging or grinding later, which increases the workload of the workers. Summary of the invention

[0003] In order to overcome the shortcomings of the background technology, the present invention discloses a markless clamping device for large forgings. The present invention uses a connecting mechanism to ensure that the contact end of the contact mechanism is always parallel to the surface of the steel billet. At the same time, the force application position of the clamping clamp and the contact mechanism is adjusted through the connecting mechanism, so that the clamping clamp can clamp the steel billet conveniently and avoid leaving clamping marks on the surface of the steel billet by the clamping clamp. The connecting mechanism is driven to work through a limiting mechanism to fix the position of the connecting mechanism on the contact mechanism, so as to avoid the position of the connecting mechanism changing when clamping the steel billet, causing the steel billet to fall.

[0004] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical scheme: A non-marking clamping device for large forgings comprises a clamping clamp, wherein the clamping end of the clamping clamp is connected to a contact mechanism via a connecting mechanism, and a limiting mechanism is installed on the handheld end of the clamping clamp, and the traction end of the limiting mechanism is connected to the transmission end of the connecting mechanism.

[0005] The limiting mechanism includes a positioning frame, a pulling plate, a pressing plate, a reset spring and a traction rope. There are two positioning frames, which are respectively located on the two handheld ends of the clamping clamp and fixedly connected, and a pressing plate is rotatably connected inside the positioning frame. A reset spring and a pulling plate are respectively installed between the pressing plate and the handheld end of the clamping clamp, and a traction rope is installed on the pulling plate, and the other end of the traction rope is connected to the transmission end of the connecting mechanism.

[0006] The pulling plate is a bent plate, and one end of a pulling rope is fixedly connected to the bent portion of the pulling plate.

[0007] The connecting mechanism includes a sliding block, a limit frame, a limit spring and a rotating block. There are two rotating blocks, which are respectively located on the two clamping ends of the clamping clamp and fixedly connected, and the rotating block is rotatably connected to the limit frame on one end away from the clamping clamp. The limit frame is located on the sliding block and fixedly connected, and two limit springs are installed between the sliding block and the clamping end of the clamping clamp. The sliding block is located on the moving end of the contact mechanism.

[0008] The limiting frame and the rotating block are both provided with through grooves, and the positions of the pipe through grooves correspond to each other, and a traction rope is slidably connected in the through grooves.

[0009] The sliding block includes a block body, a gear, a traction spring, a positioning plate and a rack. The block body is located on the moving end of the contact mechanism, and a groove is provided on the block body. A gear is rotatably connected in the groove. Two racks are slidably connected in the groove, and the two racks are located on both sides of the gear and meshed with the gear. One end of one of the racks is connected to the groove wall of the groove through a traction spring, and the other end of the rack is connected to the traction rope, and one end of the other rack is connected to the positioning plate, and the positioning plate is in contact with the contact end of the contact mechanism.

[0010] The groove consists of a mounting groove and two through grooves, and the two through grooves are connected to the mounting groove. The two through grooves are respectively located on both sides of the block and the positions are not corresponding. A gear is rotatably connected in the mounting groove, and a rack is slidably connected in the through groove.

[0011] The two limit springs are respectively located on both sides of the limit frame, and the limit springs correspond to the opening side of the limit frame.

[0012] The contact mechanism includes a contact plate, a moving rod, a sliding rod and a sliding block. There are two contact plates, and a moving groove is provided on one side of the contact plate close to the connecting mechanism. A sliding groove is provided on the groove wall of the moving groove, and a sliding rod is fixedly connected in the sliding groove. A sliding block is slidably connected to the sliding rod, and two moving rods are fixedly connected to the sliding block, and a block is slidably connected to the moving rod.

[0013] The groove walls on four sides of the movable groove are respectively provided with sliding grooves, and the sliding grooves on adjacent groove walls are arranged in a staggered manner.

[0014] Due to the adoption of the above technical solution, the present invention has the following beneficial effects: The present invention discloses a markless clamping device for large forgings, which ensures that the contact end of the contact mechanism is always parallel to the surface of the steel billet through a connecting mechanism, and adjusts the force application positions of the clamping clamp and the contact mechanism through the connecting mechanism, so that the clamping clamp can clamp the steel billet conveniently and avoid leaving clamping marks on the surface of the steel billet by the clamping clamp. The connecting mechanism is driven to work through a limiting mechanism, so that the position of the connecting mechanism on the contact mechanism is fixed, so as to avoid the position of the connecting mechanism changing when clamping the steel billet, causing the steel billet to fall. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 for Figure 2 A schematic diagram of the enlarged structure of the present invention; Figure 4 It is a schematic diagram of the structure of the sliding block of the present invention; 1. Clamping clip; 2. Connecting mechanism; 201. Sliding block; 201.1. Block; 201.2. Gear; 201.3. Traction spring; 201.4. Positioning plate; 201.5. Rack; 202. Limiting frame; 203. Limiting spring; 204. Rotating block; 3. Contact mechanism; 301. Contact plate; 302. Moving rod; 303. Sliding rod; 304. Sliding block; 4. Limiting mechanism; 401. Positioning frame; 402. Pulling plate; 403. Pressing plate; 404. Reset spring; 405. Traction rope. DETAILED DESCRIPTION

[0016] The present invention can be explained in detail by the following examples, and the purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0017] Combined with Figures 1 to 4 The large forging part seamless clamping device comprises a clamping clamp 1, the clamping end of the clamping clamp 1 is connected to a contact mechanism 3 via a connecting mechanism 2, and a limiting mechanism 4 is installed on the handheld end of the clamping clamp 1, and the traction end of the limiting mechanism 4 is connected to the transmission end of the connecting mechanism 2.

[0018] The limiting mechanism 4 includes a positioning frame 401, a pulling plate 402, a pressing plate 403, a reset spring 404 and a traction rope 405. There are two positioning frames 401, and the two positioning frames 401 are respectively located on the two handheld ends of the clamping clamp 1 and are fixedly connected, and a pressing plate 403 is rotatably connected inside the positioning frame 401. A reset spring 404 and a pulling plate 402 are respectively installed between the pressing plate 403 and the handheld end of the clamping clamp 1, and a traction rope 405 is installed on the pulling plate 402, and the other end of the traction rope 405 is connected to the transmission end of the connecting mechanism 2.

[0019] The pulling plate 402 is a bent plate, and one end of a pulling rope 405 is fixedly connected to the bent portion of the pulling plate 402 .

[0020] The connecting mechanism 2 includes a sliding block 201, a limit frame 202, a limit spring 203 and a rotating block 204. There are two rotating blocks 204. The two rotating blocks 204 are respectively located on the two clamping ends of the clamping clamp 1 and are fixedly connected. The rotating block 204 is rotatably connected to the limit frame 202 at one end away from the clamping clamp 1. The limit frame 202 is located on the sliding block 201 and is fixedly connected. Two limit springs 203 are installed between the sliding block 201 and the clamping end of the clamping clamp 1. The sliding block 201 is located on the moving end of the contact mechanism 3.

[0021] The limiting frame 202 and the rotating block 204 are both provided with through grooves, and the positions of the through grooves are corresponding. A traction rope 405 is slidably connected in the through groove. After the rotating block 204 rotates in the limiting frame 202, the traction rope 405 can continue to move.

[0022] The sliding block 201 includes a block body 201.1, a gear 201.2, a traction spring 201.3, a positioning plate 201.4 and a rack 201.5. The block body 201.1 is located on the moving end of the contact mechanism 3, and a groove is provided on the block body 201.1. The gear 201.2 is rotatably connected in the groove. Two racks 201.5 are slidably connected in the groove, and the two racks 201.5 are located on both sides of the gear 201.2 and meshed with the gear 201.2. One end of one of the racks 201.5 is connected to the groove wall of the groove through the traction spring 201.3, and the other end of the rack 201.5 is connected to the traction rope 405, and one end of the other rack 201.5 is connected to the positioning plate 201.4, and the positioning plate 201.4 is in contact with the contact end of the contact mechanism 3.

[0023] The groove consists of a mounting groove and two through grooves, and the two through grooves are connected to the mounting groove. The two through grooves are respectively located on both sides of the block 201.1 and the positions are not corresponding. A gear 201.2 is rotatably connected in the mounting groove, and a rack 201.5 is slidably connected in the through groove.

[0024] The two limit springs 203 are respectively located on both sides of the limit frame 202 , and the limit springs 203 correspond to the opening side of the limit frame 202 .

[0025] The contact mechanism 3 includes a contact plate 301, a moving rod 302, a sliding rod 303 and a sliding block 304. The number of the contact plates 301 is two, and a moving groove is provided on the side of the contact plate 301 close to the connecting mechanism 2. A sliding groove is provided on the groove wall of the moving groove, and a sliding rod 303 is fixedly connected in the sliding groove. A sliding block 304 is slidably connected to the sliding rod 303, and two moving rods 302 are fixedly connected to the sliding block 304. The moving rod 302 is slidably connected to the block 201.1. The contact plate 301 can completely cover the contact surface of the steel billet to prevent the contact plate 301 from leaving clamping marks on the surface of the steel billet.

[0026] The groove walls on four sides of the movable groove are respectively provided with sliding grooves, and the sliding grooves on adjacent groove walls are arranged in a staggered manner.

[0027] The aforementioned large forging part seamless clamping device, when in use, the staff drives the contact plate 301 to move through the clamping clamp 1, so that the bottom end of the contact plate 301 contacts the forging steel table, and drives the two contact plates 301 to move through the clamping clamp 1, so that the two contact plates 301 clamp the steel billet, and the contact plates 301 rotate when they contact the steel billet, so that the contact plates 301 are parallel to the surface of the steel billet, and when the clamping clamp 1 is lifted, the contact plates 301 slide downward due to the action of gravity, and the block 201.1 is located at the uppermost side of the groove of the contact plate 301. The staff moves the clamping clamp 1 downward according to the situation of the steel billet, so that the block 201.1 corresponds to the center position of the steel billet, and when clamping the steel billet, the staff holds the pressing plate 403 and the clamping clamp 1 The handheld end of the clamp 1 is provided with a pressing plate 403, and the thickness of the handheld end of the clamp 1 is increased, thereby increasing the gripping feel of the staff. The pulling plate 402 is bent by the pressing plate 403, and the bending of the pulling plate 402 is used to drive the traction rope 405 to move. The traction rope 405 is used to drive one of the racks 201.5 to move, and one of the racks 201.5 drives the other rack 201.5 to move in the opposite direction through the gear 201.2, and the positioning plate 201.4 is driven to move by the other rack 201.5, so that the positioning plate 201.4 is in close contact with the contact plate 301, and the block 201.1 is fixed at the position of the contact plate 301, so that the staff can clamp the steel billet conveniently and avoid the contact plate 301 from slipping when clamping the steel billet.

[0028] The parts of the present invention that are not described in detail are prior art. Although the present invention is specifically demonstrated and introduced in conjunction with the preferred implementation scheme, there are many methods and approaches to specifically implement the technical solution. The above is only a preferred implementation scheme of the present invention, but technical personnel in the relevant field should understand that various changes can be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined in the attached claims, and all of them are within the scope of protection of the present invention.

Claims

1. A non-marking clamping device for large forgings, comprising a clamp (1), characterized in that: The clamping end of the clamping clamp (1) is connected to the contact mechanism (3) via a connecting mechanism (2), and a limiting mechanism (4) is installed on the handheld end of the clamping clamp (1), and the traction end of the limiting mechanism (4) is connected to the transmission end of the connecting mechanism (2).

2. The large forging seamless clamping device according to claim 1 is characterized in that: The limiting mechanism (4) comprises a positioning frame (401), a pulling plate (402), a pressing plate (403), a reset spring (404) and a pulling rope (405). The number of the positioning frames (401) is two. The two positioning frames (401) are respectively located on the two handheld ends of the clamping clamp (1) and are fixedly connected. The pressing plate (403) is rotatably connected inside the positioning frame (401). The reset spring (404) and the pulling plate (402) are respectively installed between the pressing plate (403) and the handheld end of the clamping clamp (1). The pulling rope (405) is installed on the pulling plate (402). The other end of the pulling rope (405) is connected to the transmission end of the connecting mechanism (2).

3. The large forging seamless clamping device according to claim 2 is characterized in that: The pulling plate (402) is a bent plate, and one end of a pulling rope (405) is fixedly connected to the bent portion of the pulling plate (402).

4. The large forging seamless clamping device according to claim 1 is characterized in that: The connecting mechanism (2) comprises a sliding block (201), a limiting frame (202), a limiting spring (203) and a rotating block (204); the number of the rotating blocks (204) is two, the two rotating blocks (204) are respectively located on the two clamping ends of the clamping clamp (1) and are fixedly connected, and the end of the rotating block (204) away from the clamping clamp (1) is rotatably connected to the limiting frame (202), the limiting frame (202) is located on the sliding block (201) and is fixedly connected, and two limiting springs (203) are installed between the sliding block (201) and the clamping end of the clamping clamp (1), and the sliding block (201) is located on the moving end of the contact mechanism (3).

5. The large forging seamless clamping device according to claim 4 is characterized in that: The limiting frame (202) and the rotating block (204) are both provided with through grooves, and the positions of the pipe through grooves correspond to each other. A traction rope (405) is slidably connected in the through groove.

6. The large forging seamless clamping device according to claim 4 is characterized in that: The sliding block (201) comprises a block body (201.1), a gear (201.2), a traction spring (201.3), a positioning plate (201.4) and a rack (201.5); the block body (201.1) is located on the moving end of the contact mechanism (3); a groove is provided on the block body (201.1); a gear (201.2) is rotatably connected in the groove; two racks (201.5) are slidably connected in the groove; and the two racks (201.5) are 1.5) are located on both sides of the gear (201.2) and meshingly connected with the gear (201.2), one end of one of the racks (201.5) is connected to the groove wall of the groove through a traction spring (201.3), and the other end of the rack (201.5) is connected to the traction rope (405), and one end of the other rack (201.5) is connected to the positioning plate (201.4), and the positioning plate (201.4) is in contact with the contact end of the contact mechanism (3).

7. The large forging seamless clamping device according to claim 6 is characterized in that: The groove consists of a mounting groove and two through grooves, and the two through grooves are connected to the mounting groove. The two through grooves are respectively located on two sides of the block (201.1) and are not located in corresponding positions. A gear (201.2) is rotatably connected in the mounting groove, and a rack (201.5) is slidably connected in the through groove.

8. The large forging seamless clamping device according to claim 4 is characterized in that: The two limit springs (203) are respectively located on two sides of the limit frame (202), and the limit springs (203) correspond to the opening side of the limit frame (202).

9. The large forging seamless clamping device according to claim 1 is characterized in that: The contact mechanism (3) comprises a contact plate (301), a moving rod (302), a sliding rod (303) and a sliding block (304); the number of the contact plates (301) is two, and a moving groove is provided on a side of the contact plate (301) close to the connecting mechanism (2); a sliding groove is provided on the groove wall of the moving groove, and a sliding rod (303) is fixedly connected in the sliding groove; a sliding block (304) is slidably connected to the sliding rod (303), and two moving rods (302) are fixedly connected to the sliding block (304); and a block (201.1) is slidably connected to the moving rod (302).

10. The large forging seamless clamping device according to claim 9 is characterized in that: The groove walls on four sides of the movable groove are respectively provided with sliding grooves, and the sliding grooves on adjacent groove walls are arranged in a staggered manner.

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