An automatic feeding rack and feeding device suitable for large-size ball screws

Abstract

The utility model discloses an automatic feeding frame and feeding device suitable for large -size ball screw, related to induction hardening technical field, and automatic feeding frame includes frame, and the frame is provided with a plurality of support frame for supporting workpiece at interval, and the top surface of support frame is the slope, and the low end of slope is provided with the material blocking rod and the material lifting subassembly, the material blocking rod is used for preventing workpiece from falling, and the material lifting subassembly includes the material lifting rod and material lifting cylinder, and the distal end of material lifting rod is provided with the hook portion, and the hook portion has the recess portion between material lifting rod, and material lifting cylinder is used for driving the up and down swing of the distal end of material lifting rod, when the distal end of material lifting rod swings upward, the workpiece that is blocked by material blocking rod is lifted, and the workpiece falls into recess portion under the action of gravity, when the distal end of material lifting rod swings downward, the workpiece of recess portion is placed in feeding station according to the situation, and completes the feeding action.

Description

Technical Field

[0001] This utility model relates to the field of induction hardening technology, specifically an automatic feeding rack and feeding device suitable for large-size ball screws. Background Technology

[0002] The core purpose of ball screws is to efficiently and accurately convert rotary motion into linear motion, and they are widely used in industrial automation, precision instruments, medical equipment, and other fields requiring high-precision transmission control. In normal production, single ball screws of 3-6 meters in length are often quenched and then cut to the required length according to customer needs. The excessive length and weight of a single ball screw makes loading and unloading workpieces difficult. Common methods for quenching and loading ball screws include chuck clamping, using extension rods or extension sleeves, and using guide wheels to grip the screw groove and drive its rotation and forward movement through friction. Chuck clamping is typically used for short-pitch screws and is ineffective for large-size screws. Using extension rods or extension sleeves requires the same operation for each screw, affecting processing smoothness and cycle time. Guide wheel friction-driven screws require multiple sets of guide wheels for screws of different sizes, increasing production costs. Therefore, a simple and versatile loading mechanism is needed. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an automatic feeding rack and feeding device suitable for large-size ball screws. The automatic feeding rack can carry workpieces of 2 meters or more and has a wide range of applications. The rotary conveying device indirectly drives the workpiece to rotate through two sets of rollers, reducing wear on the screw raceway.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an automatic feeding rack suitable for large-size ball screws, comprising a frame, wherein a plurality of support frames for supporting workpieces are spaced apart on the frame, the top surface of the support frame is a slope, and a stop bar and a feeding assembly are provided at the lower end of the slope; the stop bar is used to prevent the workpiece from slipping; the feeding assembly includes a feeding rod and a feeding cylinder, the distal end of the feeding rod is provided with a return hook, and a groove is provided between the return hook and the feeding rod; the feeding cylinder is used to drive the distal end of the feeding rod to swing up and down; when the distal end of the feeding rod swings upward, it lifts the workpiece blocked by the stop bar, and the workpiece falls into the groove under the action of gravity; when the distal end of the feeding rod swings downward, the workpiece in the groove is placed in the feeding station, completing the feeding action.

[0005] A further improvement is that it also includes a first long rod, the two ends of which are connected to the two sides of the frame and pass through each support frame in sequence; the near end of each top material rod is hinged to the first long rod.

[0006] A further improvement is that a stepped portion is provided in the middle of the top material rod, which is used to lift the workpiece blocked by the stop rod and at the same time block subsequent workpieces.

[0007] A further improvement is that the slope of the support frame is covered with a sliding mat.

[0008] A further improvement is that it also includes a material stop adjustment assembly for adjusting the relative position of the material stop bar and the support frame.

[0009] A further improvement is made in that: the material stop adjustment assembly includes a second long rod and a material stop adjustment screw; the two ends of the second long rod are respectively connected to the two sides of the frame, and the lower ends of each material stop rod are respectively connected to the second long rod; one end of the material stop adjustment screw is provided with a handwheel, and the other end of the material stop adjustment screw is connected to the second long rod through a crank.

[0010] This utility model also provides a feeding device, including a rotary conveying mechanism, characterized in that: an automatic feeding rack as described above is provided on one side of the rotary conveying mechanism, the automatic feeding rack being used to transfer workpieces onto the rotary conveying mechanism.

[0011] A further improvement is that the rotary conveying mechanism includes a base and a rotary motor. A pair of rotating shafts are provided on the base, and several pairs of rollers are arranged opposite each other on the two rotating shafts. The rotary motor is used to drive the rotating shafts to rotate.

[0012] A further improvement is that a pusher assembly is provided on the other side of the rotary conveyor mechanism to push the workpiece on the rotary conveyor mechanism to the quenching area.

[0013] A further improvement is made in that: the pushing assembly includes a back plate, a transverse slide plate, a longitudinal slide plate, and a height adjustment screw; the back plate is provided with a transverse guide rail and a transverse rack; the transverse slide plate is slidably mounted on the transverse guide rail, and a transverse motor and a longitudinal guide rail are provided on the transverse slide plate, the drive shaft of the transverse motor is provided with a gear that meshes with the transverse rack; the longitudinal slide plate is slidably mounted on the longitudinal guide rail, and a push rod for pushing the workpiece is provided at the lower end of the longitudinal slide plate; the height adjustment screw is mounted on the transverse slide plate and connected to the longitudinal slide plate through a nut seat.

[0014] The beneficial effects of this utility model are as follows:

[0015] This utility model adopts an adjustable-width automatic feeding rack, which can be adjusted according to customer needs while meeting basic requirements, thereby improving the applicability of the automatic feeding components. It uses two sets of roller devices to indirectly drive the workpiece rotation, reducing wear on the workpiece raceway. The roller gap within the roller device is adjustable, expanding the applicability range, reducing workpiece loss, and improving economic efficiency. It uses a push rod to push the workpiece into the quenching zone. The position of the push rod can be manually adjusted according to the workpiece, avoiding the need for multiple push rods for different workpieces, reducing production costs, and improving processing efficiency. Attached Figure Description

[0016] Figure 1 This is a perspective view of the automatic feeding rack in an embodiment of this utility model;

[0017] Figure 2 This is a front view of the automatic feeding rack in an embodiment of this utility model;

[0018] Figure 3 This is a side view of the automatic feeding rack in an embodiment of the present invention;

[0019] Figure 4 This is a top view of the automatic feeding rack in an embodiment of this utility model;

[0020] Figure 5 This is a schematic diagram of the top material rod in an embodiment of this utility model;

[0021] Figure 6 This is a schematic diagram illustrating the working principle of the automatic feeding rack in this embodiment of the present invention.

[0022] Figure 7 This is a perspective view of the feeding device in an embodiment of this utility model;

[0023] Figure 8 This is a front view of the rotary conveying mechanism in an embodiment of the present invention;

[0024] Figure 9 This is a top view of the rotary conveying mechanism in an embodiment of this utility model;

[0025] Figure 10 This is a front view of the feeding assembly in an embodiment of the present utility model;

[0026] Figure 11 for Figure 10 A diagram showing the back panel after it has been removed.

[0027] Figure label:

[0028] 1-Automatic feeding rack; 11-Frame; 12-Support frame; 121-Sliding pad; 13-Blocking rod; 14-Top material assembly; 141-First long rod; 142-Top material rod; 1421-Return hook; 1422-Groove; 1423-Step; 143-Top material cylinder; 15-Blocking adjustment assembly; 151-Blocking adjustment screw; 152-Handwheel; 153-Crank; 154-Second long rod;

[0029] 2-Rotary conveyor mechanism; 21-Base; 22-Shaft; 23-Roller; 24-Rotary motor;

[0030] 3-Pushing assembly; 31-Back plate; 32-Transverse guide rail; 33-Transverse rack; 34-Transverse slide plate; 35-Transverse motor; 36-Longitudinal guide rail; 37-Height adjustment screw; 38-Longitudinal slide plate; 39-Top rod. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0032] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0034] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and beneficial effects of the present invention clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0035] See Figures 1-4 As shown, this utility model embodiment provides an automatic feeding rack suitable for large-size ball screws, including a frame 11. Several support frames 12 for supporting workpieces are arranged at intervals on the frame 11. The top surface of the support frame 12 is a slope, and a stop bar 13 and a top material assembly 14 are provided at the lower end of the slope. The stop bar 13 is used to prevent the workpiece from slipping. Specifically, the slope of the support frame 12 is covered with a sliding pad 121.

[0036] See Figure 3 and Figure 5 As shown, the top-feeding assembly 14 includes a top-feeding rod 142 and a top-feeding cylinder 143. The distal end of the top-feeding rod 142 is provided with a hook portion 1421, and a groove portion 1422 is formed between the hook portion 1421 and the top-feeding rod 142. The top-feeding cylinder 143 drives the distal end of the top-feeding rod 142 to swing up and down. When the distal end of the top-feeding rod 142 swings upward, it lifts the workpiece blocked by the stop rod 13, and the workpiece falls into the groove portion 1422 under gravity. When the distal end of the top-feeding rod 142 swings downward, the workpiece in the groove portion 1422 is placed at the loading station, completing the loading action. Specifically, it also includes a first long rod 141, whose two ends are respectively connected to both sides of the frame 11 and sequentially pass through each support frame 12. The proximal ends of each top-feeding rod 142 are respectively hinged to the first long rod 141. The top rod 142 has a stepped portion 1423 in the middle, which is used to lift the workpiece blocked by the stop rod 13 and block subsequent workpieces.

[0037] See Figure 2 and Figure 4 As shown, it also includes a baffle adjustment assembly 15 for adjusting the relative position of the baffle rod 13 and the support frame 12. Specifically, the baffle adjustment assembly 15 includes a second long rod 154 and a baffle adjustment screw 151; both ends of the second long rod 154 are respectively connected to both sides of the frame 11, and the lower ends of each baffle rod 13 are respectively connected to the second long rod 154; one end of the baffle adjustment screw 151 is provided with a handwheel 152, and the other end of the baffle adjustment screw 151 is connected to the second long rod 154 through a crank 153.

[0038] The working principle of the automatic feeding rack is as follows:

[0039] See Figure 6 As shown, the workpiece is placed on the support frame and rolls downwards by its own weight. The workpiece is stopped by the baffle rod. The attached switch detects the incoming material. The top material cylinder drives the top material rod, which swings upwards around the circumference of the first long rod, lifting the workpiece. Under the action of gravity, the workpiece falls into the groove of the top material rod. When the top material rod rotates, the stepped part of the top material rod acts as a material distribution mechanism. After the switch detects that the top material cylinder has reached the limit, the top material cylinder retracts, the top material rod falls down, and the workpiece is placed on the workpiece rotary conveyor mechanism.

[0040] See Figure 7 As shown, this utility model also provides a feeding device, including a rotary conveyor mechanism 2. An automatic feeding rack 1, as described above, is provided on one side of the rotary conveyor mechanism 2. This automatic feeding rack 1 is used to transfer workpieces onto the rotary conveyor mechanism 2. Specifically, a pushing assembly 3 is provided on the other side of the rotary conveyor mechanism 2, used to push the workpieces on the rotary conveyor mechanism 2 into the quenching area.

[0041] See Figure 8 and Figure 9 As shown, the rotary conveying mechanism 2 includes a base 21 and a rotary motor 24. A pair of rotating shafts 22 are mounted on the base 21, and several pairs of rollers 23 are arranged opposite each other on the two rotating shafts 22. The rotary motor 24 is used to drive the rotating shafts 22 to rotate. The workpiece rotary conveying device indirectly drives the workpiece to rotate through two sets of rollers, reducing the wear on the lead screw raceway.

[0042] See Figure 10 and Figure 11 As shown, the pusher assembly 3 includes a back plate 31, a transverse slide plate 34, a longitudinal slide plate 38, and a height adjustment screw 37. The back plate 31 is equipped with a transverse guide rail 32 and a transverse rack 33. The transverse slide plate 34 is slidably mounted on the transverse guide rail 32, and a transverse motor 35 and a longitudinal guide rail 36 are mounted on the transverse slide plate 34. The drive shaft of the transverse motor 35 is equipped with a gear that meshes with the transverse rack 33. The longitudinal slide plate 38 is slidably mounted on the longitudinal guide rail 36, and a push rod 39 for pushing the workpiece is located at the lower end of the longitudinal slide plate 38. The height adjustment screw 37 is mounted on the transverse slide plate 34 and connected to the longitudinal slide plate 38 via a nut seat. The position of the push rod can be adjusted according to the workpiece diameter, facilitating operation and eliminating the need to manufacture multiple sets of push rods, thus reducing production costs.

[0043] The working principle of the feeding device is as follows:

[0044] The workpiece is placed on the support frame and rolls downwards under its own weight. A stop bar stops the workpiece, and an attached switch detects the incoming material. A top-loading cylinder drives the top-loading rod, which swings upwards around the circumference of the first long rod, lifting the workpiece. Under gravity, the workpiece falls into the groove of the top-loading rod. As the top-loading rod rotates, its stepped section acts as a material divider. Once the switch detects that the top-loading cylinder has reached its limit, the cylinder retracts, the top-loading rod falls, and the workpiece is placed onto the workpiece rotary conveyor. A rotary motor drives a roller assembly, indirectly rotating the workpiece. After the workpiece is detected as being placed on the rotary conveyor, a pushing mechanism, driven by a motor, pushes the workpiece forward via a top rod to the quenching area. The pushing mechanism then retracts, and the automatic loading rack restarts loading.

[0045] In the description of this specification, references to terms such as "an embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. Illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions based on this utility model using techniques known in the art all fall within the protection scope of this utility model and should be defined by the claims.

Claims

1. An automatic feeding rack suitable for large-size ball screws, comprising a frame (11), characterized in that: The frame (11) is provided with a number of support frames (12) for supporting workpieces at intervals. The top surface of the support frame (12) is a slope, and the bottom end of the slope is provided with a baffle rod (13) and a top material assembly (14). The stop bar (13) is used to prevent the workpiece from slipping; The top-feeding assembly (14) includes a top-feeding rod (142) and a top-feeding cylinder (143). The far end of the top-feeding rod (142) is provided with a hook portion (1421), and there is a groove portion (1422) between the hook portion (1421) and the top-feeding rod (142). The top-feeding cylinder (143) is used to drive the far end of the top-feeding rod (142) to swing up and down. When the far end of the top-feeding rod (142) swings upward, it lifts the workpiece blocked by the stop rod (13), and the workpiece falls into the groove portion (1422) under the action of gravity. When the far end of the top-feeding rod (142) swings downward, the workpiece in the groove portion (1422) is placed in the loading station to complete the loading action.

2. The automatic feeding rack for large-size ball screws according to claim 1, characterized in that: It also includes a first long rod (141), the two ends of which are connected to the two sides of the frame (11) and pass through each support frame (12) in sequence; the near ends of each top material rod (142) are respectively hinged to the first long rod (141).

3. The automatic feeding rack for large-size ball screws according to claim 1, characterized in that: The top bar (142) has a stepped part (1423) in the middle, which is used to lift the workpiece blocked by the stop bar (13) and block subsequent workpieces.

4. The automatic feeding rack for large-size ball screws according to claim 1, characterized in that: The slope of the support frame (12) is covered with a sliding mat (121).

5. The automatic feeding rack for large-size ball screws according to claim 1, characterized in that: It also includes a baffle adjustment assembly (15) for adjusting the relative position of the baffle rod (13) and the support frame (12).

6. The automatic feeding rack for large-size ball screws according to claim 5, characterized in that: The material stop adjustment assembly (15) includes a second long rod (154) and a material stop adjustment screw (151); the two ends of the second long rod (154) are respectively connected to the two sides of the frame (11), and the lower ends of each material stop rod (13) are respectively connected to the second long rod (154); a handwheel (152) is provided at one end of the material stop adjustment screw (151), and the other end of the material stop adjustment screw (151) is connected to the second long rod (154) through a crank (153).

7. A feeding device, comprising a rotary conveying mechanism (2), characterized in that: The rotary conveying mechanism (2) is provided with an automatic feeder (1) as described in any one of claims 1 to 6 on one side. The automatic feeder (1) is used to transfer workpieces onto the rotary conveying mechanism (2).

8. The feeding device according to claim 7, characterized in that: The rotary conveying mechanism (2) includes a base (21) and a rotary motor (24). A pair of rotating shafts (22) are provided on the base (21), and several pairs of rollers (23) are arranged opposite each other on the two rotating shafts (22). The rotary motor (24) is used to drive the rotating shafts (22) to rotate.

9. The feeding device according to claim 7, characterized in that: A pusher assembly (3) is provided on the other side of the rotary conveyor (2) to push the workpiece on the rotary conveyor (2) to the quenching area.

10. The feeding device according to claim 9, characterized in that: The feeding assembly (3) includes a back plate (31), a transverse slide plate (34), a longitudinal slide plate (38), and a height adjustment screw (37); the back plate (31) is provided with a transverse guide rail (32) and a transverse rack (33); the transverse slide plate (34) is slidably disposed on the transverse guide rail (32), and the transverse slide plate (34) is provided with a transverse motor (35) and a longitudinal guide rail (36), and the drive shaft of the transverse motor (35) is provided with a gear that meshes with the transverse rack (33); the longitudinal slide plate (38) is slidably disposed on the longitudinal guide rail (36), and the lower end of the longitudinal slide plate (38) is provided with a push rod (39) for pushing the workpiece; the height adjustment screw (37) is disposed on the transverse slide plate (34) and connected to the longitudinal slide plate (38) through a nut seat.

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