Feeding device for drill bit production

Abstract

A feeding device for drill bit production belongs to the technical field of drill bit production related equipment and is characterized in that a metal conveying belt is mounted in a trapezoidal carrying frame, a plurality of L-shaped retainer plates are fixedly mounted on the outer surface of the metal conveying belt at equal intervals, a receiving mechanism is mounted at the top of the left side of the trapezoidal carrying frame, and a storage box is fixedly mounted on the upper surface of a supporting seat; a mounting cavity is formed in the material storage box, a material storage cavity communicating with the mounting cavity is formed in the upper surface of the material storage box, a discharging opening communicating with the mounting cavity is formed in the left side of the material storage box in a penetrating mode, a material guiding supporting plate is fixedly installed at the position of the discharging opening, and a feeding mechanism is installed in the mounting cavity; by adopting the mode that the metal conveying belt is combined with the stepping motor for driving, the high-frequency fatigue problem of the spring is avoided, the overall service life of the feeding device is greatly prolonged, the working requirement for long-term and large-scale drill bit bar feeding can be better met, the adjustable distance plate structure is arranged, and the working efficiency is improved. And the adaptability of the device to drill bit bars of different specifications can be greatly improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of drill bit production related equipment, specifically relating to a feeding device for drill bit production. Background Technology

[0002] During drill bit production, cylindrical raw materials need to be fixed on a lathe fixture and processed one by one manually or using CNC technology. After each processing, the parts must be manually removed and reloaded. Traditional processes use a multi-station raw material placement rack placed on the worktable next to the lathe. Workers need to turn around to pick up and put down the raw materials each time they need to change them. In batch production scenarios, this increases non-processing time. Especially for the manual operation of high-precision drill bits, frequent turning around to pick up materials significantly affects production efficiency.

[0003] A search revealed a prior art patent in the relevant field with publication number CN218395946U, entitled "A Feeding Device for Drill Bit Production." This patent employs an automatic feeding device with a spring-loaded mechanism, where the springs elastically support the material bar, sequentially moving it upwards and reducing the frequency of manual material handling. However, this solution has a significant drawback: in actual production, the springs must withstand high-frequency reciprocating compression, causing their elasticity to degrade rapidly, with an average service life of only 3000-5000 working cycles. As production scales up, the spring failure rate increases dramatically, failing to meet the long-term feeding requirements of drill bit material. Therefore, this paper proposes an alternative feeding device for drill bit production to address the aforementioned technical problems. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a feeding device for drill bit production, which solves the problem that the existing feeding devices for drill bit production cannot meet the long-term feeding operation of drill bit rods.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A feeding device for drill bit production includes a trapezoidal frame and a support base. The support base is installed on the right side of the trapezoidal frame. A metal conveyor belt is installed inside the trapezoidal frame. Multiple L-shaped material support plates are fixedly installed at equal intervals on the outer surface of the metal conveyor belt. A receiving mechanism is fixedly installed on the top left side of the trapezoidal frame. A storage box is fixedly installed on the upper surface of the support base.

[0007] The storage box has an installation cavity, and the upper surface of the storage box has a storage chamber that communicates with the installation cavity. The left side of the storage box has a discharge port that communicates with the installation cavity. A guide plate is fixedly installed at the discharge port. The guide plate is used to guide the drill bit material into the L-shaped guide plate. The installation cavity is equipped with a feeding mechanism for guiding the drill bit material in the storage cavity to the discharge port.

[0008] In the above technical solution, the feeding mechanism includes a rotating shaft and a stepper motor B. The rotating shaft is rotatably installed in the mounting cavity, and a bushing is fixedly installed on the outer surface of the rotating shaft. Multiple feeding plates are fixedly installed at equal intervals on the outer surface of the bushing. Adjacent feeding plates cooperate to transfer the drill bit material of the unit. The stepper motor B is fixedly installed on the rear surface of the storage box, and the output end of the stepper motor B is fixedly connected to the rear end of the rotating shaft through a coupling.

[0009] In the above technical solution, ear blocks are fixedly installed at the four corners of the upper surface of the storage box, and directional rods are fixedly installed between the front and rear ear blocks. A spacer plate is slidably installed between the two directional rods, and the spacer plate is slidably installed in the storage cavity.

[0010] In the above technical solution, the upper surface of the spacer plate is threaded with a clamping bolt at both ends, and the lower surface of the clamping bolt is in contact with the outer surface of the corresponding directional rod.

[0011] In the above technical solution, the receiving mechanism includes a material guide frame, a baffle is fixedly installed on the upper surface of the material guide frame, a receiving box is fixedly installed on the lower surface of the material guide frame, and the material guide frame and the baffle are fixedly connected to the upper surface of the trapezoidal carrier frame by bolts.

[0012] In the above technical solution, two rollers are rotatably installed inside the trapezoidal frame, and the metal conveyor belt is arranged around the two rollers. The front end of each roller is fitted with a sprocket, and a transmission chain is installed between the two sprockets. A stepper motor A is fixedly installed on the rear surface of the trapezoidal frame, and the output end of the stepper motor A is fixedly connected to the rear end of any one of the rollers through a coupling.

[0013] The feed device for drill bit production of this utility model has the following advantages compared with the prior art:

[0014] This invention avoids the high-frequency fatigue problem of springs by using a metal conveyor belt combined with a stepper motor drive, significantly extending the overall service life of the feeding device. It can better meet the needs of long-term, large-scale drill bit feeding. By setting an adjustable spacer plate structure, the effective length of the storage chamber can be adjusted from 50-300mm, meeting the directional storage requirements of different specifications of cemented carbide drill bits under the ISO10899 standard. At the same time, it ensures the axial positioning accuracy of the material stack (±0.5mm), greatly improving the adaptability of the device to different specifications of drill bits. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0017] Figure 3 for Figure 2 Enlarged view of the local structure at point a.

[0018] Figure 4 for Figure 2 Enlarged view of the local structure at point b.

[0019] Figure 5 This is a schematic diagram of the delivery mechanism structure of this utility model.

[0020] Figure 6 This is a schematic diagram of the rear view structure of this utility model.

[0021] Figure 7 This is an exploded view of the material receiving mechanism of this utility model.

[0022] Figures 1-7 The components include: 1. Trapezoidal carrier; 11. Roller shaft; 12. Sprocket; 13. Transmission chain; 14. Stepper motor A; 2. Support base; 3. Metal conveyor belt; 31. L-shaped material support plate; 4. Receiving mechanism; 41. Guide frame; 42. Material stop cover; 43. Receiving box; 431. Rubber pad; 5. Storage box; 51. Mounting cavity; 52. Storage cavity; 53. Discharge port; 531. Guide support plate; 6. Feeding mechanism; 61. Rotating shaft; 62. Stepper motor B; 63. Bushing; 64. Material pusher plate; 7. Ear block; 8. Directional rod; 9. Spacer plate; 91. Tightening bolt. Detailed Implementation

[0023] 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.

[0024] In this embodiment, front, back, left, right, top, and bottom are... Figure 1 Describe the reference plane. See [link / reference] Figures 1-7 This utility model provides a technical solution:

[0025] A feeding device for drill bit production includes a trapezoidal frame 1 and a support base 2. Both the trapezoidal frame 1 and the support base 2 are fixedly installed on the ground at the usage location by bolts. The support base 2 is installed on the right side of the trapezoidal frame 1. A metal conveyor belt 3 is installed inside the trapezoidal frame 1. Multiple L-shaped material support plates 31 are welded and fixedly installed at equal intervals on the outer surface of the metal conveyor belt 3. The gap between the front and rear ends of the L-shaped material support plates 31 and the inner surface of the trapezoidal frame 1 is less than 1 cm, which can prevent the drill bit material from falling off the L-shaped material support plates 31 during the feeding process.

[0026] Two rollers 11 are rotatably mounted inside the trapezoidal frame 1. A metal conveyor belt 3 is arranged around the two rollers 11. Pre-tension is formed by the spacing of the two rollers 11 or by a tension adjustment structure. Power transmission is achieved by the meshing or frictional contact between the toothed grooves on the surface of the rollers 11 and the metal conveyor belt 3. The axes of the two rollers 11 are parallel and aligned to ensure that the metal conveyor belt 3 has no offset in the running plane. A sprocket 12 is sleeved at the front end of each roller 11, and a transmission chain 13 is installed between the two sprockets 12. A stepper motor A14 is fixedly mounted on the rear surface of the trapezoidal frame 1. The output end of the stepper motor A14 is fixedly connected to the rear end of any one of the rollers 11 through a coupling. 4 is a pulse motor. Stepper motor A14 is electrically connected to an external power supply and an external controller A. The external controller A can send pulse signals to stepper motor A14 to control the rotation of stepper motor A14. After stepper motor A14 rotates, it drives the metal conveyor belt 3 to move through the two rollers 11, thereby driving the L-shaped material support plate 31 to move upward, realizing the upward feeding action. A receiving mechanism 4 is fixedly installed on the top left side of the trapezoidal frame 1. When the drill bit material is transported to the top by the L-shaped material support plate 31, the drill bit material falls from the left side of the metal conveyor belt 3 into the receiving mechanism 4 for temporary storage. At this time, the operator can take the material from the receiving mechanism 4 for processing.

[0027] A storage box 5 is fixedly installed on the upper surface of the support base 2. The storage box 5 contains an installation cavity 51. A storage chamber 52 (with a length greater than 300mm) is provided on the upper surface of the storage box 5, communicating with the installation cavity 51. The passage between the storage chamber 52 and the installation cavity 51 is only large enough for one drill bit to pass through. The storage chamber 52 is V-shaped. After the drill bits are stacked in the V-shaped storage chamber 52, they can easily slide sequentially into the installation cavity 51 under gravity. A through-hole opening is provided on the left side of the storage box 5. The installation cavity 51 is connected to the discharge port 53. A guide plate 531 is fixedly installed at the discharge port 53. A two-centimeter notch is opened at the left end of the guide plate 531. The notch serves to prevent the guide plate 531 from obstructing the movement of the L-shaped support plate 31 while ensuring that the drill bit material can be normally guided into the guide plate 531. The guide plate 531 is used to guide the drill bit material into the L-shaped support plate 31. A feeding mechanism 6 is installed in the installation cavity 51 to guide the drill bit material in the storage cavity 52 to the discharge port 53.

[0028] Combination Figure 2 , Figure 3 and Figure 5 As shown, the feeding mechanism 6 includes a rotating shaft 61 and a stepper motor B62. The stepper motor B62 is a pulse stepper motor and is electrically connected to an external power supply and an external controller B. The external controller B controls the operation by sending pulse signals to the stepper motor B62. The rotating shaft 61 is rotatably mounted in the mounting cavity 51, and a bushing 63 is fitted onto the outer surface of the rotating shaft 61. The bushing 63 is fixed to the rotating shaft 61 by bolts. Multiple feed plates 64 are welded and fixedly mounted at equal intervals on the outer surface of the bushing 63. The spacing between the feed plates 64 is set according to the outer diameter of the drill bit bar. Adjacent feed plates 64 cooperate to transfer the drill bit of the unit. The bar stock is fixedly mounted on the rear surface of the storage box 5 by a stepper motor B62, and the output end of the stepper motor B62 is fixedly connected to the rear end of the rotating shaft 61 by a coupling. When the drill bit bar stock in the storage cavity 52 slides down to the mounting cavity 51 and contacts the bushing 63, the stepper motor B62 can be controlled by the external controller B to rotate at a certain preset frequency, thereby driving the feeding plate 64 to rotate through the bushing 63, and delivering the drill bit bar stock to the discharge port 53 in sequence. The discharge port 53 is in an inclined state, and the drill bit bar stock can enter the guide plate 531 through the discharge port 53, and then be guided to the L-shaped support plate 31 of the metal conveyor belt 3.

[0029] It is worth noting that, in order to facilitate the storage of drill bit bars of different lengths while ensuring normal material feeding, the storage bin 5 is designed to be suitable for storing drill bit bars of different lengths. Figure 2 and Figure 4As shown, lugs 7 are fixedly installed at the four corners of the upper surface of the storage box 5, and directional rods 8 are fixedly installed between the front and rear lugs 7. A spacer plate 9 is slidably installed between the two directional rods 8. The spacer plate 9 is slidably installed in the storage cavity 52. ​​The left and right ends of the upper surface of the spacer plate 9 are threaded with abutting bolts 91. The lower surface of the abutting bolt 91 is in contact with the outer surface of the corresponding directional rod 8.

[0030] In practical use, the friction constraint on the guide slide is released by loosening the locking bolts, and the partition is moved along the axial direction to the target position (L = nominal length of drill bit stock + 2mm process allowance). A 15N·m preload is applied to the tightening bolt 91 using an external torque wrench to achieve mechanical locking. This structure, by establishing a movable positioning reference surface, allows the effective length of the storage chamber 52 to be adjusted from 50-300mm, meeting the directional storage requirements of different specifications of cemented carbide drill bit stock under the ISO10899 standard, while ensuring the axial positioning accuracy of the material stack (±0.5mm). The adjustment mechanism meets the stiffness requirements of the sliding pair in the GB / T3811-2008 crane design specification, effectively preventing axial movement during drill bit stock transportation.

[0031] In addition, combined Figure 2 and Figure 7 As shown, the receiving mechanism 4 includes a guide frame 41. A baffle 42 is fixedly installed on the upper surface of the guide frame 41, and a receiving box 43 is fixedly installed on the lower surface of the guide frame 41. A rubber pad 431 is laid inside the receiving box 43. The rubber pad 431 plays a buffering role for the falling drill bit material. The guide frame 41 and the baffle 42 are fixedly connected to the upper surface of the trapezoidal carrier 1 by bolts. When the drill bit material is transported to the top of the trapezoidal carrier 1 by the L-shaped support plate 31, it can be guided into the receiving box 43 with the help of the baffle 42 and the guide frame 41.

[0032] Finally, it should be noted that before using this feeding device, the rotation frequency of stepper motor A14 and stepper motor B62 needs to be further adjusted using external controller A and external controller B respectively, in order to ensure that the drill bit bar material falls accurately onto the corresponding L-shaped support plate 31 each time it falls from the guide plate 531.

[0033] Working principle: During use, drill bit stock is stacked sequentially in the storage chamber 52. Under the action of gravity, the drill bit stock slides down into the mounting chamber 51 and contacts the bushing 63. The stepper motors A14 and B62 are started by external controllers A and B respectively. The drill bit stock is moved by the feeding mechanism 6 to the discharge port 53 and then fed by the guide plate 531 to the moving L-shaped support plate 31. Driven by the metal conveyor belt 3, it is moved to the top of the trapezoidal carrier 1. Finally, after being restrained by the guide frame 41 and the baffle 42, it falls into the receiving box 43 for temporary storage. The operator can directly continue to retrieve the material from the receiving box 43. Compared with existing technologies, the design of the feeding device avoids the high-frequency fatigue problem of springs by using a metal conveyor belt 3 combined with a stepper motor drive, which greatly extends the overall service life of the feeding device and can better meet the needs of long-term, large-scale drill bit material feeding. By setting an adjustable spacer plate 9 structure, the effective length of the storage chamber 52 can be adjusted from 50-300mm, which meets the directional storage requirements of different specifications of cemented carbide drill bit materials under the ISO10899 standard, while ensuring the axial positioning accuracy of the material stack (±0.5mm), greatly improving the adaptability of the device to different specifications of drill bit materials.

Claims

1. A feeding device for drill bit production, comprising a trapezoidal carrier (1) and a support base (2), wherein the support base (2) is installed on the right side of the trapezoidal carrier (1), characterized in that, A metal conveyor belt (3) is installed inside the trapezoidal frame (1). Multiple L-shaped material support plates (31) are fixedly installed at equal intervals on the outer surface of the metal conveyor belt (3). A material receiving mechanism (4) is fixedly installed on the top left side of the trapezoidal frame (1). A storage box (5) is fixedly installed on the upper surface of the support base (2). The storage box (5) is provided with an installation cavity (51). The upper surface of the storage box (5) is provided with a storage cavity (52) that communicates with the installation cavity (51). The left side of the storage box (5) is provided with a discharge port (53) that communicates with the installation cavity (51). A guide plate (531) is fixedly installed at the discharge port (53). The guide plate (531) is used to guide the drill bit material into the L-shaped guide plate (31). The installation cavity (51) is provided with a feeding mechanism (6) for guiding the drill bit material in the storage cavity (52) to the discharge port (53).

2. The feeding device for drill bit production according to claim 1, characterized in that, The feeding mechanism (6) includes a rotating shaft (61) and a stepper motor B (62). The rotating shaft (61) is rotatably installed in the mounting cavity (51), and a bushing (63) is fixedly installed on the outer surface of the rotating shaft (61). Multiple material feeding plates (64) are fixedly installed at equal intervals on the outer surface of the bushing (63). Two adjacent material feeding plates (64) cooperate to transfer the drill bit material of the unit. The stepper motor B (62) is fixedly installed on the rear surface of the storage box (5), and the output end of the stepper motor B (62) is fixedly connected to the rear end of the rotating shaft (61) through a coupling.

3. A feeding device for drill bit production according to claim 1 or 2, characterized in that, The storage box (5) has ear blocks (7) fixedly installed at the four corners of its upper surface. A guide rod (8) is fixedly installed between the two ear blocks (7) at the front and back. A spacer plate (9) is slidably installed between the two guide rods (8). The spacer plate (9) is slidably installed in the storage cavity (52).

4. The feeding device for drill bit production according to claim 3, characterized in that, The upper surface of the spacer plate (9) is threaded with a locking bolt (91) at both ends, and the lower surface of the locking bolt (91) is in contact with the outer surface of the corresponding directional rod (8).

5. A feeding device for drill bit production according to claim 1, characterized in that, The receiving mechanism (4) includes a guide frame (41), a baffle (42) is fixedly installed on the upper surface of the guide frame (41), and a receiving box (43) is fixedly installed on the lower surface of the guide frame (41). The guide frame (41) and the baffle (42) are fixedly connected to the upper surface of the trapezoidal frame (1) by bolts.

6. The feeding device for drill bit production according to claim 1, characterized in that, Two rollers (11) are rotatably installed inside the trapezoidal frame (1). The metal conveyor belt (3) is arranged around the two rollers (11). The front end of each roller (11) is fitted with a sprocket (12). A transmission chain (13) is installed between the two sprockets (12). A stepper motor A (14) is fixedly installed on the rear surface of the trapezoidal frame (1). The output end of the stepper motor A (14) is fixedly connected to the rear end of any one of the rollers (11) through a coupling.

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