Multi-station nut cold header

Abstract

The utility model relates to the technical field of nut processing, and provides a multi-station nut cold header which comprises an equipment frame and a fixed seat, the fixed seat is fixed at the top of the equipment frame, a cold heading forming assembly is arranged outside the equipment frame and comprises a transmission shaft, and the transmission shaft is rotatably connected in the fixed seat. A pair of telescopic hydraulic cylinders is fixedly connected to the side surface of the equipment frame, the output ends of the telescopic hydraulic cylinders are connected with a transverse frame, and a driving rack is arranged at the top of the transverse frame. By means of the technical scheme, the problems that in the related technology, a formed nut needs to be manually taken out of a stamping female die, the formed nut is embedded in the stamping female die, taking is inconvenient, and therefore cold heading machining cannot be continuously conducted are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of nut processing, and in particular to a multi-station nut cold heading machine. Background Art

[0002] Nuts are nuts that are screwed together with bolts or screws to tighten. They are a must-have component for all manufacturing machinery. According to the different materials, they are divided into several types, such as carbon steel, stainless steel, and non-ferrous metals (such as copper). Cold heading machines are required for nut processing.

[0003] Patent No. (CN214720236U) discloses a multi-station automatic nut cold heading machine, which realizes the continuous and uninterrupted automatic processing of the nut cold heading machine's material collection-unloading-punching process through the linkage of the punch head and the feeding plate, and has high production efficiency.

[0004] During use of the cold heading machine, the formed nut needs to be manually taken out from the stamping die. The formed nut is embedded in the stamping die, which makes it inconvenient to take it out, so the cold heading process cannot be carried out continuously.

[0005] Therefore, improvements are made to address the above problems. Utility Model Content

[0006] The utility model provides a multi-station nut cold heading machine, which solves the problem in the related art that the formed nut needs to be taken out from the stamping die manually, the formed nut is embedded in the stamping die, it is inconvenient to take it out, and the cold heading process cannot be carried out continuously.

[0007] The technical solution of the utility model is as follows:

[0008] An equipment rack and a fixing seat, wherein the fixing seat is fixed on the top of the equipment rack;

[0009] A cold heading forming assembly, the cold heading forming assembly is arranged outside the equipment frame, the cold heading forming assembly comprises a transmission shaft, the transmission shaft is rotatably connected in the fixing seat, a pair of telescopic hydraulic cylinders are fixedly connected to the side surface of the equipment frame, the output end of the telescopic hydraulic cylinder is connected to a cross frame, and a driving rack is arranged on the top of the cross frame;

[0010] A transmission gear is provided at one end of the transmission shaft, and the transmission gear is meshed with the driving rack. A cam is provided at one end of the transmission shaft. A pair of movable columns are connected to the movable sleeve at the top of the equipment frame. A top block is provided on the top of the movable column. A first spring is connected to the outer sleeve of the movable column. A frame body is provided at the bottom of the movable column. A pair of retaining rods are provided on the top of the frame body, and the retaining rods are connected to the frame body sliding sleeve.

[0011] A cold heading head is arranged on the top of the frame body, a pair of cold heading grooves are arranged on the surface of the equipment frame, side grooves are arranged on both sides of the cold heading grooves, an inner rod is arranged in the side groove, a forming seat is slidably sleeved on the outside of the inner rod, and a second spring is sleeved on the outside of the inner rod;

[0012] A circular hole is opened at the bottom of the cold heading groove, a pushing rod is arranged at the bottom of the frame, a pair of telescopic cylinders are fixedly connected to the surface of the equipment frame, and a pushing frame is connected to the output end of the telescopic cylinder, and the pushing frame corresponds to the position of the cold heading groove.

[0013] As a further technical solution, a collection box is installed on the surface of the equipment rack, and the collection box is located at the front end of the discharge part of the equipment rack.

[0014] As a further technical solution, a pair of side baffles are provided on the surface of the equipment rack, and the side end surface of the equipment rack is at a right angle to form an inclined transition structure.

[0015] As a further technical solution, the frame body is in a C-shaped structure as a whole, and the cold heading head and the push rod are located at the same axial position.

[0016] As a further technical solution, the diameter of the push rod is smaller than the inner diameter of the circular hole.

[0017] The working principle and beneficial effects of the utility model are:

[0018] The utility model is provided with a cold heading forming component. Under the interaction of structures such as a transmission shaft, a telescopic hydraulic cylinder, a driving rack, a transmission gear, a cam, a frame, a cold heading head, a cold heading groove, a forming seat, a pushing rod and a telescopic cylinder, two cold heading grooves are provided. The cam on the top of the movable column repeatedly rotates left and right. Each rotation will push the top block downward, so that the cold heading head will descend to complete the forming process, and when it rotates to the other side, the formed nut will be brought out, which is convenient for discharging, and the effect of forming and discharging at the same time can be achieved. It only needs to load the materials into the cold heading grooves on both sides in turn. The forming efficiency is high, the operation method is simple, and it has good processing effect and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is the axonometric drawing of the utility model;

[0022] Figure 3 This is a cross-sectional view of the utility model;

[0023] Figure 4For the utility model Figure 3 A partial enlarged view of part A;

[0024] In the figure: 1. Equipment frame; 2. Fixed seat; 3. Cold heading forming assembly; 3-1. Transmission shaft; 3-2. Telescopic hydraulic cylinder; 3-3. Cross frame; 3-4. Driving rack; 3-5. Transmission gear; 3-6. Cam; 3-7. Movable column; 3-8. Top block; 3-9. First spring; 3-10. Frame; 3-11. Retaining rod; 3-12. Cold heading head; 3-13. Cold heading groove; 3-14. Side groove; 3-15. Inner rod; 3-16. Forming seat; 3-17. Second spring; 3-18. Round hole; 3-19. Push rod; 3-20. Telescopic cylinder; 3-21. Push frame; 4. Collecting box; 5. Side baffle. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1~Figure 4 As shown, this embodiment proposes a multi-station nut cold heading machine, including

[0027] An equipment rack 1 and a fixing base 2, wherein the fixing base 2 is fixed on the top of the equipment rack 1;

[0028] A cold heading forming component 3, wherein the cold heading forming component 3 is arranged outside the equipment frame 1, and the cold heading forming component 3 includes a transmission shaft 3-1, and the transmission shaft 3-1 is rotatably connected in the fixed seat 2. A pair of telescopic hydraulic cylinders 3-2 are fixedly connected to the side surface of the equipment frame 1, and the output end of the telescopic hydraulic cylinder 3-2 is connected to a cross frame 3-3, and a driving rack 3-4 is arranged on the top of the cross frame 3-3. A transmission gear 3-5 is arranged at one end of the transmission shaft 3-1, and the transmission gear 3-5 is meshed with the driving rack 3-4. A cam 3-6 is arranged at one end of the transmission shaft 3-1. A pair of movable columns 3-7 are movably connected to the top of the equipment frame 1, and a top block 3-8 is arranged on the top of the movable column 3-7. A first spring 3-9 is connected to the outside of the movable column 3-7, and a frame body 3-10 is arranged at the bottom of the movable column 3-7. The frame body 3-1 0A pair of retaining rods 3-11 are arranged at the top, and the retaining rods 3-11 are connected with the frame body 3-10 by sliding sleeve, a cold heading head 3-12 is arranged at the top of the frame body 3-10, a pair of cold heading grooves 3-13 are provided on the surface of the equipment frame 1, side grooves 3-14 are provided on both sides of the cold heading groove 3-13, an inner rod 3-15 is arranged in the side groove 3-14, the outer sliding sleeve of the inner rod 3-15 is connected with a forming seat 3-16, the outer sleeve of the inner rod 3-15 is connected with a second spring 3-17, a round hole 3-18 is provided at the bottom of the cold heading groove 3-13, a pushing rod 3-19 is arranged at the bottom of the frame body 3-10, a pair of telescopic cylinders 3-20 are fixedly connected to the surface of the equipment frame 1, the output end of the telescopic cylinder 3-20 is connected with a pushing frame 3-21, and the pushing frame 3-21 corresponds to the position of the cold heading groove 3-13.

[0029] In this embodiment, in order to achieve the multi-station rapid cold forging effect of the nut, a cold forging forming component 3 is designed. A fixed seat 2 is arranged on the top of the equipment frame 1. A transmission shaft 3-1 is rotatably connected in the fixed seat 2. A transmission gear 3-5 is arranged at one end of the transmission shaft 3-1 and a cam 3-6 is arranged at the other end. Two telescopic hydraulic cylinders 3-2 are fixed on the back of the equipment frame 1. A cross frame 3-3 and a driving rack 3-4 are connected at the output end. The driving rack 3-4 is meshed with the transmission gear 3-5. The upper end of the driving rack 3-4 can be driven to move the nut. The downward movement drives the transmission gear 3-5 to make the cam 3-6 press left and right repeatedly. Two movable columns 3-7 are connected to the movable sleeve at the top of the equipment frame 1. The movable column 3-7 is located directly below the two ends of the protrusion. A first spring 3-9 is sleeved on the outside of the movable column 3-7. The movable column 3-7 can be reset by elastic force. The bottom of the movable column 3-7 is connected to the frame body 3-10. The top of the frame body 3-10 is provided with a cold heading head 3-12. The surface of the equipment frame 1 is provided with a cold heading groove 3-12 directly below the cold heading head 3-12. 3, two side grooves 3-14 are provided inside and an inner rod 3-15 is provided, the outer sliding sleeve of the inner rod 3-15 is connected with a forming seat 3-16, and a second spring 3-17 is provided on the inner rod 3-15. The forming seat 3-16 is kept at the bottom by the elastic force of the second spring 3-17, and the raw material can be placed in the cold heading groove 3-13, and the cold heading head 3-12 is cooperated with to perform cold heading forming processing, and a push rod 3-19 is provided at the bottom of the frame 3-10, and a round hole 3-18 is provided at the bottom of the cold heading groove 3-13. After the moving column 3-7 is reset by the elastic force of the first spring 3-9, the pushing rod 3-19 will be inserted into the circular hole 3-18 and push the forming seat 3-16 to move upward, moving the formed nut upward to the surface of the equipment frame 1. On the surface of the equipment frame 1, which is opposite to the cold heading groove 3-13, a telescopic cylinder 3-20 and a pushing frame 3-21 are provided. The pushing frame 3-21 can be controlled by the telescopic cylinder 3-20 to push the formed nut outward for unloading. The cold heading grooves 3-13 on both sides are repeatedly formed and unloaded.

[0030] Furthermore, a collecting box 4 is installed on the surface of the equipment rack 1 , and the collecting box 4 is located at the front end of the discharging part of the equipment rack 1 .

[0031] In this embodiment, a collection box 4 is installed on the surface of the equipment frame 1, and the nuts dropped during discharge can be directly slid into the collection box 4, which is convenient for collection and taking.

[0032] Furthermore, a pair of side baffles 5 are provided on the surface of the equipment rack 1 , and the side end surface of the equipment rack 1 is at a right angle to form an inclined transition structure by installing a pair of side baffles 5 .

[0033] In this embodiment, the side baffles 5 are used to provide a certain degree of protection on both sides, and the inclined transition structure at the front end facilitates the discharged material to slide quickly into the collection box 4 .

[0034] Furthermore, the frame body 3-10 is in a C-shaped structure as a whole, and the cold heading head 3-12 and the push rod 3-19 are located at the same axial position.

[0035] In this embodiment, through the C-shaped structure, the cold heading head 3-12 and the push rod 3-19 are respectively located at the top and the bottom, and can cooperate to complete the forming and discharging.

[0036] Furthermore, the diameter of the push rod 3-19 is smaller than the inner diameter of the circular hole 3-18.

[0037] In this embodiment, the push rod 3-19 needs to have a smaller diameter, passes through the circular hole 3-18, pushes the forming seat 3-16 to move upward, and makes the top of the forming seat 3-16 and the surface of the equipment rack 1 at the same plane height.

[0038] When cold heading processing is required, the raw material is placed in the cold heading groove 3-13, and then the telescopic hydraulic cylinder 3-2 is started to repeatedly extend and retract at intervals. When one side of the cam 3-6 is downward, the top block 3-8 is pushed to move the movable column 3-7 downward, and the cold heading head 3-12 enters the cold heading groove 3-13 to shape the raw material. While processing, a raw material is placed in the cold heading groove 3-13 on the other side. After forming, the cam 3-6 rotates to the other side. When the cold heading head 3-12 is pulled out of the cold heading groove 3-13, the push rod 3-19 below is inserted into the circular hole 3-18, and the forming seat 3-16 is pushed upward, so that the nut rises to the surface of the equipment frame 1, and then the telescopic cylinder 3-20 is started, and the output end extends through the push frame 3-21 to push the nut to slide into the collection box 4, and the loading is repeated.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-station nut cold heading machine, characterized in that: include An equipment rack (1) and a fixing seat (2), wherein the fixing seat (2) is fixed on the top of the equipment rack (1); A cold heading forming component (3), the cold heading forming component (3) is arranged outside the equipment frame (1), the cold heading forming component (3) comprises a transmission shaft (3-1), the transmission shaft (3-1) is rotatably connected in the fixed seat (2), a pair of telescopic hydraulic cylinders (3-2) are fixedly connected to the side surface of the equipment frame (1), the output end of the telescopic hydraulic cylinder (3-2) is connected to a cross frame (3-3), and a driving rack (3-4) is arranged on the top of the cross frame (3-3); A transmission gear (3-5) is arranged at one end of the transmission shaft (3-1), and the transmission gear (3-5) is meshed with the driving rack (3-4); a cam (3-6) is arranged at one end of the transmission shaft (3-1); a pair of movable columns (3-7) are movably connected to the top of the equipment frame (1); a top block (3-8) is arranged on the top of the movable column (3-7); a first spring (3-9) is movably connected to the outside of the movable column (3-7); a frame body (3-10) is arranged at the bottom of the movable column (3-7); a pair of retaining rods (3-11) are arranged on the top of the frame body (3-10); the retaining rods (3-11) are slidably connected to the frame body (3-10); A cold heading head (3-12) is arranged at the top of the frame body (3-10), a pair of cold heading grooves (3-13) are provided on the surface of the equipment frame (1), side grooves (3-14) are provided on both sides of the cold heading groove (3-13), an inner rod (3-15) is arranged in the side groove (3-14), the outer side of the inner rod (3-15) is slidably sleeved and connected to a forming seat (3-16), and the outer side of the inner rod (3-15) is sleeved and connected to a second spring (3-17); A circular hole (3-18) is provided at the bottom of the cold heading groove (3-13); a push rod (3-19) is provided at the bottom of the frame body (3-10); a pair of telescopic cylinders (3-20) are fixedly connected to the surface of the equipment frame (1); the output end of the telescopic cylinder (3-20) is connected to a push frame (3-21); and the push frame (3-21) corresponds to the position of the cold heading groove (3-13).

2. A multi-station nut cold heading machine according to claim 1, characterized in that: A collection box (4) is installed on the surface of the equipment frame (1), and the collection box (4) is located at the front end of the discharge part of the equipment frame (1).

3. A multi-station nut cold heading machine according to claim 1, characterized in that: A pair of side baffles (5) are provided on the surface of the equipment rack (1), and the side end surface of the equipment rack (1) is at a right angle to form an inclined transition structure.

4. A multi-station nut cold heading machine according to claim 1, characterized in that: The frame (3-10) is in a C-shaped structure as a whole, and the cold heading head (3-12) and the push rod (3-19) are located at the same axial position.

5. The multi-station nut cold heading machine according to claim 1, characterized in that: The diameter of the pushing rod (3-19) is smaller than the inner diameter of the circular hole (3-18).

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