Fastener cold header convenient for die replacement

Abstract

The utility model discloses a fastener cold header convenient to change dies, which relates to the technical field of cold headers and comprises a cold header body, a fixing frame is mounted on one side of the cold header body, a mounting frame is slidably clamped on the upper portion of one side of the fixing frame, and a plurality of female dies distributed at equal intervals are arranged on one side of the mounting frame. A plurality of pushing blocks distributed at equal intervals are arranged on one side of the mounting frame, two symmetrically-distributed clamping blocks are arranged on one side of each pushing block, second sliding blocks are fixedly mounted in the middles of the two sides of each pushing block, second sliding grooves are formed in the middles of one sides of the clamping blocks, and the second sliding blocks are slidably clamped in the second sliding grooves; according to the mold replacement device, a plurality of molds can be conveniently and rapidly disassembled and assembled at the same time, so that the complexity and time consumption in the mold replacement process are reduced, the technical threshold of operators is lowered, and mold sets can be conveniently and rapidly replaced according to different product specifications.

Description

Technical Field

[0001] This utility model relates to the field of cold heading machine technology, specifically a fastener cold heading machine that facilitates mold changing. Background Technology

[0002] A fastener cold heading machine is a specialized piece of equipment used to manufacture various types of bolts, nuts, screws, and other similar fasteners. This equipment deforms the material by applying pressure and rotational force to it, thus forming the fastener. The fastener cold heading machine is one of the important pieces of equipment in mechanical manufacturing, with advantages such as high efficiency, high quality, material saving, and low cost.

[0003] Traditional fastener cold heading machines require changing the mold according to the size of the fastener being processed. However, the current mold changing process is slow, and the process of disassembling the die by turning the bolts is cumbersome. Moreover, only one die can be disassembled at a time, which slows down the disassembly process and affects the processing efficiency. Utility Model Content

[0004] In order to solve the problem of slow and cumbersome mold replacement in existing cold heading machines, the purpose of this utility model is to provide a fastener cold heading machine that facilitates mold replacement.

[0005] To solve the above technical problems, this utility model adopts the following technical solution: a fastener cold heading machine that facilitates mold changing, comprising a cold heading machine body, a fixing frame installed on one side of the cold heading machine body, a mounting frame slidably mounted on the upper part of one side of the fixing frame, a plurality of equally spaced concave dies on one side of the mounting frame, a plurality of equally spaced push blocks on one side of the mounting frame, two symmetrically distributed clamping blocks on one side of each of the push blocks, and a second slider fixedly mounted on the middle of both sides of each of the push blocks. Each of the first and second slides has a second groove in the middle of one side, and multiple second slide blocks are slidably locked inside the second slide groove. Each of the push blocks has a screw rotatably mounted in the middle of one side. Multiple second worm gears are rotatably mounted in the middle of the mounting frame. A rotating shaft is rotatably mounted in the middle of the mounting frame. Multiple second worms are fixedly mounted in the middle of the rotating shaft, and the second worms mesh with the second worm gears. One side of each of the screws is threaded through the middle of the second worm gear. A third worm gear is fixedly mounted at one end of the rotating shaft.

[0006] Preferably, a double-ended screw is rotatably mounted on the middle of one side of the mounting bracket, a first worm gear is fixedly mounted on the middle of the double-ended screw, a first worm is rotatably mounted on one side of the mounting bracket, the first worm is meshed with the first worm gear, and limit blocks are threadedly mounted on both sides of the double-ended screw.

[0007] Compared with the prior art, the utility model has the advantages of

[0008] 1, this application can convenient and fast to a plurality of moulds are installed simultaneously, thereby reduce the complexity and time consumption in the process of changing mould, reduce the technical threshold of operating personnel, convenient according to different product specifications rapidly change mould group.

[0009] 2, this application can to the whole set of female die on the mounting frame is integrally removed, the mounting rack of the female die that has been installed is installed on the fixed frame, and the whole set of female die unloaded is removed one by one, thereby reducing the downtime of cold header film change, and speeding up the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0010] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without creating labor for those skilled in the art.

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 It is a structural schematic diagram after splitting in the utility model.

[0013] Figure 3 It is a partial sectional structural schematic diagram of the utility model.

[0014] Figure 4 It is the utility model Figure 3 Enlarged view of A in the utility model.

[0015] Figure 5 It is the utility model Figure 3 Enlarged view of B in the utility model.

[0016] Figure 6 It is the connecting structure schematic diagram of clamping block and first sliding block in the utility model.

[0017] In the drawing: 1, cold header body;2, fixed frame;3, mounting frame;31, double-end screw;32, limit block;321, limit slot;33, cavity;34, first worm wheel;35, first worm;351, first handle;4, female die;41, mounting groove;42, clamping block;43, first sliding block;431, first sliding slot;44, push block;45, second sliding block;451, second sliding slot;46, second worm wheel;47, No. 1 screw;48, second worm;49, rotating shaft;491, third worm wheel;492, third worm;493, second handle. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example: Figures 1-6 As shown, this utility model provides a fastener cold heading machine with convenient mold changing, including a cold heading machine body 1. A fixing frame 2 is installed on one side of the cold heading machine body 1. A mounting frame 3 is slidably attached to the upper part of one side of the fixing frame 2. A plurality of equally spaced concave dies 4 are provided on one side of the mounting frame 3. A plurality of equally spaced push blocks 44 are provided on one side of the mounting frame 3. Two symmetrically distributed clamping blocks 42 are provided on one side of each of the push blocks 44. A second slider 45 is fixedly installed in the middle of both sides of each of the push blocks 44. A second groove 45 is opened in the middle of one side of each of the clamping blocks 42. 1. Multiple second sliders 45 are slidably locked inside the second slide groove 451. A screw 47 is rotatably mounted on the middle of one side of multiple push blocks 44. Multiple second worm gears 46 are rotatably mounted on the middle of the mounting frame 3. A rotating shaft 49 is rotatably mounted on the middle of the mounting frame 3. Multiple second worms 48 are fixedly mounted on the middle of the rotating shaft 49, and the second worms 48 mesh with the second worm gears 46. One side of multiple screws 47 is threaded through the middle of the second worm gears 46. A third worm gear 491 is fixedly mounted on one end of the rotating shaft 49.

[0020] A double-ended screw 31 is rotatably mounted on the middle of one side of the mounting bracket 3. A first worm gear 34 is fixedly mounted on the middle of the double-ended screw 31. A first worm 35 is rotatably mounted on one side of the mounting bracket 3. The first worm 35 is meshed with the first worm gear 34. Limiting blocks 32 are threadedly mounted on both sides of the double-ended screw 31.

[0021] The mounting bracket 3 has multiple equally spaced mounting slots 41 on one side. One side of each of the multiple concave molds 4 is slidably locked inside the mounting slots 41. By setting the mounting slots 41, the concave molds 4 can be installed, positioned and limited.

[0022] Each of the multiple clamping blocks 42 has a first slider 43 fixedly installed on one side, and each of the multiple mounting brackets 3 has a multiple equally spaced first sliding grooves 431 on one side. The multiple first sliders 43 are slidably locked inside the first sliding grooves 431. By setting the first sliding grooves 431 and the first sliders 43, the clamping blocks 42 are made more stable when moving under the drive of the push block 44 and through the cooperation of the first sliding grooves 431 and the first sliders 43.

[0023] The third worm 492 is rotatably installed on one side of the mounting frame 3 close to the third worm wheel 491, the third worm 492 is in meshing connection with the third worm wheel 491, and the top end of the third worm 492 is fixedly installed with the second handle 493. By arranging the third worm wheel 491 and the third worm 492, the third worm wheel 491 and the third worm 492 have a self-locking function, so that the structure is more stable.

[0024] The two sides of the mounting frame 3 are provided with cavities 33, and the two limiting blocks 32 are slidingly clamped in the middle of the cavities 33. By arranging the cavities 33, the limiting blocks 32 can be more stable when moving under the limiting of the cavities 33.

[0025] The two sides of the fixing frame 2 are provided with two symmetrical limiting grooves 321, and the two sides of the two limiting blocks 32 are slidingly inserted into the limiting grooves 321. By arranging the limiting grooves 321, the mounting frame 3 can be limited and installed on the upper side of the fixing frame 2 when the limiting block 32 is slidingly inserted into the limiting groove 321.

[0026] The top end of the first worm 35 is fixedly installed with the first handle 351. By arranging the first handle 351, rotating the first handle 351 can drive the first worm 35 to rotate.

[0027] Working principle: in actual use, the concave die 4 is installed in the mounting groove 41, the second handle 493 is rotated to drive the third worm 492 to rotate, that is, the third worm wheel 491 is rotated, the shaft 49 is rotated, and the plurality of second worms 48 is rotated, that is, the plurality of second worm wheels 46 is rotated. Since the first screw rod 47 is threadedly installed in the middle of the second worm wheel 46, when the second worm wheel 46 rotates, the push block 44 can be driven to move, so that the clamping block 42 is driven to approach the concave die 4 under the limiting, so as to clamp and fix the concave die 4. Reverse rotation of the second handle 493 can disassemble the concave die 4;

[0028] The first handle 351 is rotated to drive the first worm 35 to rotate, that is, the first worm wheel 34 is rotated, so that the double-head screw rod 31 is rotated, and then the limiting block 32 can be slidingly arranged in the cavity 33. After the limiting block 32 is clamped in the limiting groove 321, the mounting frame 3 can be fixedly installed, and the mounting frame 3 can be clamped on the upper side of the fixing frame 2. When the concave die 4 is disassembled, a new set of concave dies 4 can be installed by disassembling the mounting frame 3, and then the concave dies 4 on the mounting frame 3 can be disassembled one by one, so as to speed up the replacement of the mold.

[0029] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A fastener cold header with easy die change, comprising a cold header body (1), characterized in that: The side of the cold header body (1) is provided with a fixing frame (2), the upper side of the fixing frame (2) is slidably provided with a mounting frame (3), the side of the mounting frame (3) is provided with a plurality of concave dies (4) distributed at equal intervals, the side of the mounting frame (3) is provided with a plurality of push blocks (44) distributed at equal intervals, the side of each of the plurality of push blocks (44) is provided with two symmetrically distributed clamping blocks (42), the middle of the two sides of each of the plurality of push blocks (44) is fixedly provided with a second sliding block (45), the middle of the side of each of the plurality of clamping blocks (42) is provided with a second sliding groove (451), each of the plurality of second sliding blocks (45) is slidably provided in the second sliding groove (451), the middle of the side of each of the plurality of push blocks (44) is rotatably provided with a first screw rod (47), the middle of the mounting frame (3) is rotatably provided with a plurality of second worm wheels (46) distributed at equal intervals, the middle of the mounting frame (3) is rotatably provided with a rotating shaft (49), the middle of the rotating shaft (49) is fixedly provided with a plurality of second worm gears (48) distributed at equal intervals, and the second worm gears (48) are engaged with the second worm wheels (46), the side of each of the plurality of first screw rods (47) is threadedly penetrated through the middle of the second worm wheel (46), and one end of the rotating shaft (49) is fixedly provided with a third worm wheel (491).

2. A quick die change fastener cold header as claimed in claim 1 wherein, The middle of the side of the mounting frame (3) is rotatably provided with a double-headed screw rod (31), the middle of the double-headed screw rod (31) is fixedly provided with a first worm wheel (34), the side of the mounting frame (3) is rotatably provided with a first worm gear (35), the first worm gear (35) is engaged with the first worm wheel (34), and the two sides of the double-headed screw rod (31) are threadedly provided with limit blocks (32).

3. A quick die change fastener cold header as claimed in claim 2 wherein, The side of the mounting frame (3) is provided with a plurality of mounting grooves (41) distributed at equal intervals, and the side of each of the plurality of concave dies (4) is slidably provided in the mounting groove (41).

4. A quick die change fastener cold heading machine as claimed in claim 3 wherein, The side of each of the plurality of clamping blocks (42) is fixedly provided with a first sliding block (43), and the side of the mounting frame (3) is provided with a plurality of first sliding grooves (431) distributed at equal intervals, and each of the plurality of first sliding blocks (43) is slidably provided in the first sliding groove (431).

5. A quick die change cold header for fasteners as defined in claim 4 wherein, The side of the mounting frame (3) close to the third worm wheel (491) is rotatably provided with a third worm gear (492), the third worm gear (492) is engaged with the third worm wheel (491), and the top end of the third worm gear (492) is fixedly provided with a second handle (493).

6. A quick die change cold header for fasteners as defined in claim 5 wherein, The two sides of the mounting frame (3) are provided with cavities (33), and the two limit blocks (32) are slidably provided in the middle of the cavity (33).

7. A quick die change cold header for fasteners as defined in claim 6 wherein, The two sides of the fixing frame (2) are provided with two limit grooves (321) symmetrically distributed, and the two sides of the two limit blocks (32) are slidably provided in the limit groove (321).

8. A quick die change cold header for fasteners as defined in claim 7 wherein, The top end of the first worm gear (35) is fixedly provided with a first handle (351).

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