Screw machine facilitating feeding

Abstract

The invention provides a screw machine facilitating feeding, and relates to the technical field of screw machines, the screw machine comprises a plurality of chain plates mounted on a conveyor and a plurality of fixing sleeves fixedly mounted on the chain plates, an inner sleeve is rotationally connected to the inner wall of each fixing sleeve, an expansion sleeve is coaxially mounted on each inner sleeve, and the expansion sleeves are coaxially mounted on the chain plates. A plurality of inclined grooves are formed in the outer wall of each inner sleeve at equal intervals along the axis, a plurality of positioning holes are formed in each inclined groove at equal intervals, telescopic blocks are installed in the inclined grooves in a sliding mode, and inclined holes are formed in the telescopic blocks. A traditional screw machine generally can only process screws of a single size, great inconvenience is brought to actual production, and the screw machine can be flexibly adjusted according to screw rods of different sizes through the design of a plurality of telescopic blocks and chutes in an adjusting mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of screw machines, and more particularly to a screw machine which is convenient for feeding. Background Art

[0002] In the use of existing screw machines, a significant problem is that the equipment has poor adaptability to screw sizes. Existing machine screws are of various types and sizes, with different specifications from diameter, length to pitch. However, existing screw machines can usually only process screws of a single size, which greatly limits the versatility and flexibility of the equipment. In actual production, different products and application scenarios often require the use of screws of different sizes, which means that operators need to frequently replace the feeding device to adapt to screws of different sizes. This frequent replacement not only increases the complexity and time cost of the operation, but may also lead to a decrease in production efficiency and an increase in operating errors. Therefore, existing screw machines have obvious deficiencies in feeding multi-size screws, affecting the convenience of use and production efficiency.

[0003] In addition, the existing screw machines have some other problems in the feeding process. Since the equipment can only process screws of a single size, the operator needs to perform complex adjustments and calibrations when replacing the feeding device to ensure that the screws can smoothly enter the feeding system and be accurately installed in the specified position. This not only increases the labor intensity of the operator, but may also cause instability in the feeding system and affect the installation accuracy of the screws. In addition, frequent replacement of the feeding device may also increase the wear and failure rate of the equipment, further affecting the service life and maintenance cost of the equipment. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the problems existing in the prior art, the present invention provides a screw machine that is easy to feed, so as to solve the technical problems mentioned in the background technology.

[0006] (II) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solution: a screw machine that is convenient for feeding, comprising a bottom plate and a conveyor installed on the bottom plate;

[0008] An adjusting mechanism comprises a plurality of chain plates mounted on the conveyor and a plurality of fixed sleeves fixedly mounted on the chain plates, an inner sleeve is rotatably connected to the inner wall of each of the fixed sleeves, an expansion sleeve is coaxially mounted on the inner sleeve, a plurality of inclined grooves are arranged at equal intervals along the axis on the outer wall of each of the inner sleeves, a plurality of positioning holes are arranged at equal intervals in each of the inclined grooves, a telescopic block is slidably mounted in the inclined groove, an oblique hole is provided in the telescopic block, a positioning rod is slidably mounted in the oblique hole, a plurality of tension springs are mounted on one end of the positioning rod away from the oblique groove, and the plurality of tension springs are respectively mounted in the oblique holes; and

[0009] The clamping mechanism includes a hexagonal rod and transverse holes opened on multiple side walls of the hexagonal rod, each of the transverse holes is slidably installed with a friction rod, a lifting groove is opened in the hexagonal rod, and a lifting block is slidably connected in the lifting groove, and the upper end surface of the lifting block abuts against one end of the multiple friction rods that are close to each other.

[0010] Preferably, the adjustment mechanism also includes a limit ring nested in the inner sleeve and a thrust bearing installed on the lower end surface of the fixed sleeve, the limit ring is installed on the inner wall of the fixed sleeve, the inner sleeve is pressed on the thrust bearing, the nested cooperation between the limit ring and the inner sleeve provides a limiting effect, the setting of the thrust bearing reduces the friction between the fixed sleeve and the inner sleeve, and ensures the convenient insertion of the hexagonal rod.

[0011] Preferably, a positioning ring is installed in one end of each inclined hole close to the inclined groove. When the positioning rod is in contact with the positioning hole, the positioning rod is in contact with the positioning ring. The cooperation between the positioning ring and the positioning rod realizes position limitation. The setting of the positioning ring prevents excessive movement of the positioning rod and ensures the stability of the fixation.

[0012] Preferably, each of the telescopic blocks is provided with a vertical groove, each of the vertical grooves on the telescopic block is connected to the oblique hole, and a downward pressure rod is slidably installed in each of the vertical grooves, the downward pressure rod abuts against the end of the positioning rod away from the positioning ring, and the sliding cooperation between the vertical groove and the downward pressure rod realizes the pressure transmission in the vertical direction, thereby ensuring the stability and reliability of the positioning rod.

[0013] Preferably, a threaded hole coaxial with the vertical groove is provided on the telescopic block, an adjusting bolt is installed in the threaded hole, a compression spring is installed on the lower pressure rod, and the adjusting bolt abuts against the upper end of the compression spring. The cooperation between the threaded hole and the adjusting bolt realizes precise adjustment of the pressure, and the setting of the compression spring provides continuous and stable pressure, ensuring the reliable operation of the lower pressure rod.

[0014] Preferably, a plurality of telescopic blocks are provided, and a plurality of expansion springs are respectively installed on the plurality of telescopic blocks, and the plurality of annularly installed expansion springs respectively abut against a screw rod, and a rotating head is installed on the screw rod. The combined design of the plurality of telescopic blocks and the expansion springs provides a uniform expansion force, thereby ensuring the fixing stability of the rotating head.

[0015] Preferably, each of the telescopic blocks is respectively installed with a transverse spring, and a friction plate is installed on the transverse spring. The multiple friction plates are respectively pressed against the side walls of the rotating head. The cooperation between the transverse spring and the friction plate provides appropriate friction force, ensuring the smoothness and controllability of the rotation of the rotating head.

[0016] Preferably, the clamping mechanism also includes a hexagonal slot provided on the rotating head. When the hexagonal rod is inserted into the hexagonal slot, the side wall of the hexagonal rod fits against the side wall of the hexagonal slot, and the outer side of the friction rod abuts against the hexagonal slot. The abutment design of the friction rod increases the stability of the connection.

[0017] Preferably, the internal thread of the hexagonal rod is provided with a lifting bolt, and a push plate is sleeved on the lower end surface of the lifting bolt, and multiple push springs are installed on the push plate. The multiple push springs respectively abut against the lower end surface of the lifting block. The combination of the lifting bolt and the push plate realizes the adjustment of the clamping force, and the setting of multiple push springs provides elastic force to ensure the smoothness of the lifting process.

[0018] Preferably, a movable frame is installed on the base plate, and a rotator is installed on the movable frame. A transmission shaft is connected to the lower end of the rotator, and the hexagonal rod is installed on the transmission shaft. A workbench is installed on the base plate. The cooperation between the movable frame and the rotator realizes flexible position adjustment, and the connection between the transmission shaft and the hexagonal rod ensures reliable transmission of power. The setting of the workbench provides a stable working platform.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the present invention provides a screw machine that is easy to feed and has the following beneficial effects:

[0021] The screw machine can adapt to the feeding of screws of various sizes through its unique adjustment mechanism. Traditional screw machines can usually only process screws of a single size, which brings great inconvenience in actual production. The screw machine can flexibly adjust according to screw rods of different sizes through the design of multiple telescopic blocks and bevel grooves in the adjustment mechanism. The operator only needs to adjust the position of the telescopic block to change the distance between the friction plates to adapt to screw rods of different diameters. This design improves the flexibility and adaptability of the equipment, reduces the frequency of replacing the feeding device, and improves production efficiency.

[0022] This screw machine significantly improves production efficiency and product quality through its flexible adjustment mechanism and efficient feeding system. In actual production, operators can quickly adjust the equipment to adapt to screws of different sizes, reducing the time for changing the feeding device and improving production continuity. At the same time, through the multi-level fixing mechanism and automated feeding system, the installation accuracy and stability of the screws are ensured, and the quality and consistency of the product are improved. This efficient and flexible feeding and installation mechanism enables the screw machine to perform well in a variety of production environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a screw machine that is convenient for feeding in the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the rotator and the transmission shaft in the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the fixing sleeve and the screw rod in the present invention;

[0026] Figure 4 For the present invention Figure 3 Schematic diagram of the exploded cross-sectional structure;

[0027] Figure 5 It is a schematic cross-sectional structural diagram of the telescopic block in the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the lower pressing rod and the positioning rod in the present invention;

[0029] Figure 7 It is a schematic diagram of the cross-sectional structure of the hexagonal rod in the present invention.

[0030] In the figure: 11, bottom plate; 12, conveyor; 21, chain plate; 22, fixed sleeve; 23, inner sleeve; 24, expansion sleeve; 25, inclined slot; 26, positioning hole; 27, telescopic block; 28, oblique hole; 29, positioning rod; 31, hexagonal rod; 32, transverse hole; 33, friction rod; 34, lifting slot; 35, lifting block; 36, hexagonal slot; 37, lifting bolt; 38, push plate; 39, push spring; 41. Moving frame; 42. Rotator; 43. Transmission shaft; 44. Workbench; 210. Tension spring; 211. Limiting ring; 212. Thrust bearing; 213. Positioning ring; 214. Vertical groove; 215. Press-down rod; 217. Threaded hole; 218. Adjusting bolt; 219. Compression spring; 220. Expansion spring; 221. Screw rod; 222. Rotating head; 223. Transverse spring; 224. Friction plate. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0033] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0034] See also Figures 1 to 7A screw machine for convenient feeding includes a bottom plate 11 and a conveyor 12 installed on the bottom plate 11, a mobile frame 41 is installed on the bottom plate 11, a rotator 42 is installed on the mobile frame 41, a transmission shaft 43 is connected to the lower end of the rotator 42, a hexagonal rod 31 is installed on the transmission shaft 43, a workbench 44 is installed on the bottom plate 11, an adjustment mechanism includes a plurality of chain plates 21 installed on the conveyor 12 and a plurality of fixed sleeves 22 fixedly installed on the chain plates 21, an inner sleeve 23 is rotatably connected to the inner wall of each fixed sleeve 22, an expansion sleeve 24 is coaxially installed on the inner sleeve 23, and each A plurality of inclined grooves 25 are arranged at equal intervals along the axis on the outer wall of the inner sleeve 23, and a plurality of positioning holes 26 are arranged at equal intervals in each inclined groove 25. A telescopic block 27 is slidably installed in the inclined groove 25, and an inclined hole 28 is provided in the telescopic block 27. A positioning rod 29 is slidably installed in the inclined hole 28. A plurality of tension springs 210 are installed at one end of the positioning rod 29 away from the inclined groove 25, and the plurality of tension springs 210 are respectively installed in the inclined holes 28. The adjustment mechanism also includes a limit ring 211 nested in the inner sleeve 23 and a thrust bearing 212 installed on the lower end surface of the fixed sleeve 22. The limit ring 211 is installed in the fixed sleeve 2 2, the inner sleeve 23 is pressed on the thrust bearing 212, a positioning ring 213 is installed at one end of each oblique hole 28 close to the oblique groove 25, when the positioning rod 29 abuts in the positioning hole 26, the positioning rod 29 abuts on the positioning ring 213, each telescopic block 27 is respectively provided with a vertical groove 214, the vertical groove 214 on each telescopic block 27 is connected in the oblique hole 28, and a pressing rod 215 is slidably installed in each vertical groove 214, the pressing rod 215 abuts on one end of the positioning rod 29 away from the positioning ring 213, and a screw coaxial with the vertical groove 214 is provided on the telescopic block 27. The threaded hole 217 has a threaded hole 217 with an adjusting bolt 218 installed in its inner thread. A compression spring 219 is installed on the lower pressure rod 215. The adjusting bolt 218 abuts against the upper end of the compression spring 219. A plurality of telescopic blocks 27 are provided, and a plurality of expansion springs 220 are respectively installed on the plurality of telescopic blocks 27. The plurality of annular expansion springs 220 abut against the screw rod 221 respectively. A rotating head 222 is installed on the screw rod 221. A transverse spring 223 is respectively installed on each telescopic block 27. A friction plate 224 is installed on the transverse spring 223. The plurality of friction plates 224 respectively press against the side walls of the rotating head 222.

[0035] For screw rods 221 of different sizes, the distance between the corresponding multiple friction plates 224 needs to be adjusted before loading, so that the multiple telescopic blocks 27 are in the most suitable position of the inclined groove 25. Since the positioning rod 29 is pressed in the positioning hole 26 and the upper end of the compression spring 219 is fixed, the lower pressure rod 215 will apply corresponding pressure, and the lower pressure rod 215 is pressed on the positioning rod 29, so it will provide corresponding fixing force to the positioning rod 29, so that the positioning rod 29 can be effectively fixed in the positioning hole 26. When the telescopic block 27 is slid along the inclined groove 25, the positioning rod 29 will slide in the multiple positioning holes 26, and the corresponding fixing force will be applied by the compression spring 219. Since sliding upward in the inclined groove 25 will make the telescopic block 27 in an expanded position, the distance between the multiple friction plates 224 will be increased, and downward adjustment will reduce the distance between the friction plates 224. Therefore, it can be adjusted according to the corresponding screw rod 221 and the rotating head 222, thereby completing the preliminary adjustment.

[0036] When positioning the screw rod 221, firstly, the screw rod 221 is inserted between the multiple telescopic blocks 27 through external equipment, and then the screw rod 221 is inserted between the multiple expansion springs 220, and the expansion springs 220 provide a pre-fixing force to the screw rod 221, and then the rotating head 222 is inserted between the multiple friction plates 224, and the rotating head 222 is pressed on the telescopic block 27. At this time, the initial fixation of the screw rod 221 is completed, and the multiple chain plates 21 are driven by the conveyor 12 to move toward the position of the transmission shaft 43, and then the hexagonal rod 31 on the transmission shaft 43 is driven downward by the moving frame 41, so that the hexagonal rod 31 is inserted into the hexagonal groove 36. Since the angles are not exactly aligned at the time of initial contact, axial rotation will occur. The thrust bearing 212 can reduce the friction between the inner sleeve 23 and the fixed sleeve 22, thereby driving the inner sleeve 23 to rotate so that the hexagonal rod 31 can be easily inserted into the hexagonal groove 3 6, and then continue to press downward. At this time, the friction rod 33 abuts against the side wall of the hexagonal groove 36, and then a greater thrust is applied when pressing downward. At this time, the telescopic block 27 slides downward along the inclined groove 25 synchronously. Since the diameter of the rotating head 222 does not change, the multiple transverse springs 223 are compressed and apply a greater thrust until the friction rod 33 is inserted into the inner wall of the hexagonal groove 36, and the hexagonal rod 31 abuts against the lower end surface of the hexagonal groove 36, the friction rod 33 will apply a large pressure on the inner wall of the hexagonal groove 36, and the fixing of the rotating head 222 and the hexagonal rod 31 is completed. Then the hexagonal rod 31 moves upward. Since the telescopic block 27 will also expand with the inclined groove 25 when pulling upward, the friction force between the telescopic block 27 and the inclined groove 25 will be less than the friction force between the friction rod 33 and the hexagonal groove 36, and the expansion spring 220 will also provide an upward pulling force, so the multiple telescopic blocks 27 will move upward until the connection is released.

[0037] When the telescopic block 27 moves upward, the positioning rod 29 continues to slide in the positioning hole 26. When the fixing force between the positioning hole 26 and the positioning rod 29 needs to be changed, the compression amount of the compression spring 219 can be changed by changing the distance between the adjusting bolt 218 and the threaded hole 217, thereby adjusting the pressure provided by the lower pressure rod 215. Since the lower pressure rod 215 is pressed against the positioning rod 29, the force between the positioning rod 29 and the positioning hole 26 will be adjusted to meet the corresponding requirements.

[0038] When the connection is completed, the moving frame 41 drives the rotator 42 to move, so that the screw rod 221 is inserted into the corresponding device, and the screw rod 221 is threadedly connected in the corresponding device through the rotator 42, and then pulled upward to release the connection, thus completing a cycle.

[0039] See also Figure 1 , Figure 4 and Figure 7 The clamping mechanism includes a hexagonal rod 31 and transverse holes 32 opened on multiple side walls of the hexagonal rod 31, and a friction rod 33 is slidably installed in each transverse hole 32. A lifting groove 34 is opened in the hexagonal rod 31, and a lifting block 35 is slidably connected in the lifting groove 34. The upper end surface of the lifting block 35 abuts against one end of the multiple friction rods 33 that are close to each other. The clamping mechanism also includes a hexagonal groove 36 opened on the rotating head 222. When the hexagonal rod 31 is inserted into the hexagonal groove 36, the side wall of the hexagonal rod 31 is attached to the side wall of the hexagonal groove 36, and the outer side of the friction rod 33 abuts against the hexagonal groove 36. A lifting bolt 37 is provided with an internal thread of the hexagonal rod 31, and a push plate 38 is sleeved on the lower end surface of the lifting bolt 37. A plurality of push springs 39 are installed on the push plate 38, and the plurality of push springs 39 respectively abut against the lower end surface of the lifting block 35.

[0040] When the hexagonal rod 31 is inserted into the hexagonal groove 36, the friction rod 33 is pressed against the hexagonal groove 36, and the multiple friction rods 33 will shrink toward the axial direction, and then push the lifting block 35 to move downward. Since the position of the push plate 38 is fixed, the push spring 39 is compressed when the lifting block 35 slides downward, thereby providing a corresponding fixing force to ensure the stability of the connection. When it is necessary to adjust the fixing force between the friction rod 33 and the hexagonal groove 36, the position of the push plate 38 can be adjusted by changing the position between the lifting bolt 37 and the hexagonal rod 31, thereby changing the compression amount of the push spring 39, and then changing the fixing force.

[0041] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which will not be described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A screw machine that facilitates feeding, comprising a base plate (11) and a conveyor (12) mounted on the base plate (11); The regulating mechanism is characterized by: The invention comprises a plurality of chain plates (21) mounted on the conveyor (12) and a plurality of fixed sleeves (22) fixedly mounted on the chain plates (21), wherein an inner sleeve (23) is rotatably connected to the inner wall of each of the fixed sleeves (22), an expansion sleeve (24) is coaxially mounted on the inner sleeve (23), a plurality of inclined grooves (25) are evenly spaced along the axis on the outer wall of each of the inner sleeves (23), a plurality of positioning holes (26) are evenly spaced in each of the inclined grooves (25), a telescopic block (27) is slidably mounted in the inclined groove (25), an oblique hole (28) is provided in the telescopic block (27), a positioning rod (29) is slidably mounted in the oblique hole (28), a plurality of tension springs (210) are mounted on one end of the positioning rod (29) away from the oblique groove (25), and the plurality of tension springs (210) are respectively mounted in the oblique holes (28); as well as The clamping mechanism comprises a hexagonal rod (31) and transverse holes (32) provided on a plurality of side walls of the hexagonal rod (31), a friction rod (33) being slidably mounted in each of the transverse holes (32), a lifting groove (34) being provided in the hexagonal rod (31), a lifting block (35) being slidably connected in the lifting groove (34), and an upper end surface of the lifting block (35) abutting against one end of a plurality of friction rods (33) close to each other.

2. A screw machine that is easy to feed according to claim 1, characterized in that: The adjustment mechanism also includes a limiting ring (211) nested in the inner sleeve (23) and a thrust bearing (212) mounted on the lower end surface of the fixed sleeve (22); the limiting ring (211) is mounted on the inner wall of the fixed sleeve (22), and the inner sleeve (23) is pressed on the thrust bearing (212).

3. A screw machine that is easy to feed according to claim 2, characterized in that: A positioning ring (213) is installed at one end of each of the inclined holes (28) close to the inclined groove (25), and when the positioning rod (29) abuts in the positioning hole (26), the positioning rod (29) abuts on the positioning ring (213).

4. A screw machine that is easy to feed according to claim 3, characterized in that: Each of the telescopic blocks (27) is provided with a vertical groove (214), each of the vertical grooves (214) on the telescopic block (27) is connected to the oblique hole (28), and each of the vertical grooves (214) is slidably installed with a pressing rod (215), and the pressing rod (215) abuts against one end of the positioning rod (29) away from the positioning ring (213).

5. A screw machine that is easy to feed according to claim 4, characterized in that: The telescopic block (27) is provided with a threaded hole (217) coaxial with the vertical groove (214), an adjusting bolt (218) is installed in the threaded hole (217), a compression spring (219) is installed on the lower pressure rod (215), and the adjusting bolt (218) abuts against the upper end of the compression spring (219).

6. A screw machine for easy feeding according to claim 5, characterized in that: A plurality of the telescopic blocks (27) are provided, and a plurality of the expansion springs (220) are respectively installed on the plurality of the telescopic blocks (27). The plurality of the annularly installed expansion springs (220) respectively abut against a screw rod (221), and a rotating head (222) is installed on the screw rod (221).

7. A screw machine for easy feeding according to claim 6, characterized in that: A transverse spring (223) is respectively installed on each of the telescopic blocks (27), a friction plate (224) is installed on the transverse spring (223), and a plurality of friction plates (224) are respectively pressed against the side wall of the rotating head (222).

8. The screw machine for convenient feeding according to claim 1 is characterized in that: The clamping mechanism also includes a hexagonal groove (36) provided on the rotating head (222); when the hexagonal rod (31) is inserted into the hexagonal groove (36), the side wall of the hexagonal rod (31) fits against the side wall of the hexagonal groove (36), and the outer side of the friction rod (33) abuts against the inside of the hexagonal groove (36).

9. The screw machine for convenient feeding according to claim 1 is characterized in that: The hexagonal rod (31) is internally threaded with a lifting bolt (37), the lower end surface of the lifting bolt (37) is sleeved with a push plate (38), and a plurality of push springs (39) are installed on the push plate (38), and the plurality of push springs (39) respectively abut against the lower end surface of the lifting block (35).

10. The screw machine for convenient feeding according to claim 1 is characterized in that: A movable frame (41) is mounted on the bottom plate (11), a rotator (42) is mounted on the movable frame (41), a transmission shaft (43) is connected to the lower end of the rotator (42), the hexagonal rod (31) is mounted on the transmission shaft (43), and a workbench (44) is mounted on the bottom plate (11).

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