A bolt side hole processing device

By designing a multi-station cold heading device, continuous drilling of bolt side holes and automated loading and unloading were achieved, solving the problem of low bolt processing efficiency in existing technologies and improving processing efficiency.

CN224346984UActive Publication Date: 2026-06-12ZHEJIANG YITAI MACHINERY TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG YITAI MACHINERY TECHNOLOGY CO LTD
Filing Date
2025-05-29
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

The current bolt side hole machining efficiency is low, mainly due to the small number of fixtures that can be clamped, requiring manual placement and removal of bolts, which leads to low machining efficiency.

Method used

A multi-station cold heading device was designed, comprising a central turntable, an automatic feeding mechanism, an automatic drilling mechanism, and an automatic unloading mechanism, to realize continuous drilling and automated loading and unloading of bolts. The device utilizes an elastic positioning sleeve and a clamping mechanism for positioning and clamping, and combines an electric telescopic rod and a gripper mechanism to achieve automated operation.

Benefits of technology

It enables continuous drilling and automated loading and unloading in bolt processing, significantly improving processing efficiency.

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Abstract

This utility model discloses a bolt side hole processing equipment, including a frame with a central turntable on the frame. An automatic feeding mechanism, an automatic drilling mechanism, and an automatic unloading mechanism are arranged around the central turntable. Several sets of fixtures are arranged on the central turntable, each set including at least one positioning block. Each of the automatic feeding, automatic drilling, and automatic unloading mechanisms corresponds to one set of fixtures. The positioning blocks are equipped with a positioning mechanism and a clamping mechanism. Both the automatic feeding and automatic unloading mechanisms include a support frame and a gripper mechanism slidably connected to the support frame. The automatic feeding mechanism also includes a feeding vibratory feeder, and the automatic unloading mechanism includes a material bucket. This equipment enables continuous bolt drilling and automated loading and unloading, greatly improving bolt processing efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing equipment technology, and more specifically relates to a bolt side hole processing equipment. Background Technology

[0002] There is a type of bolt with side holes, which is usually used to prevent loosening in flange connections. Specifically, a steel wire rope is passed through multiple bolt side holes on the flange, and then the two ends of the steel wire rope are fixed. The steel wire rope prevents the bolt from rotating, thus achieving the purpose of preventing loosening.

[0003] Currently, milling machines are generally used to process the side holes of this type of bolt. The bolt is positioned laterally on a fixture, then clamped, and the side hole is drilled vertically by the milling machine spindle. The disadvantage is that the number of fixtures is relatively small, usually 8-10, and the bolts need to be placed and removed manually, resulting in low processing efficiency of the bolt side holes. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a multi-station cold heading device that enables continuous bolt drilling and automated loading and unloading, greatly improving bolt processing efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bolt side hole processing device, including a frame, a central turntable on the frame, an automatic feeding mechanism, an automatic drilling mechanism, and an automatic unloading mechanism arranged around the central turntable, a plurality of sets of fixtures on the central turntable, each set of fixtures including at least one positioning block, the automatic feeding mechanism, the automatic drilling mechanism, and the automatic unloading mechanism each corresponding to a set of fixtures, the positioning block being provided with a positioning mechanism and a clamping mechanism, the automatic feeding mechanism and the automatic unloading mechanism each including a support frame and a gripper mechanism slidably connected to the support frame, the automatic feeding mechanism further including a feeding vibratory plate, and the automatic unloading mechanism further including a material bucket.

[0006] Furthermore, the positioning mechanism includes an elastic positioning sleeve, one end of which is fixedly connected to a positioning block. The elastic positioning sleeve has two opposing openings that divide it into two arc-shaped clamping pieces. The elastic positioning sleeve also has a through hole that connects to the opening. The clamping mechanism drives the two arc-shaped clamping pieces.

[0007] Furthermore, the clamping mechanism includes a clamping block and a lifting drive mechanism for driving the clamping block to rise and fall. The clamping block is provided with a clamping hole, and the elastic positioning sleeve is located in the clamping hole. An inclined first clamping surface is provided on the outer side of the elastic positioning sleeve, and a second clamping surface is provided on the inner side of the clamping hole. The first clamping surface and the second clamping surface are in wedge-shaped contact.

[0008] Furthermore, the lifting drive mechanism includes an electric telescopic rod, and a plurality of support rods are provided on the clamping block. The support rods are slidably connected to the positioning block, and a drive plate is provided between the plurality of support rods. The drive plate is connected to the electric telescopic rod.

[0009] Furthermore, the gripper mechanism includes a translation bracket, on which a gripper plate is vertically connected. The gripper plate is provided with gripper cylinders corresponding to the number of positioning blocks in a set of fixtures, and the gripper cylinders are provided with gripping fingers.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: the feeding vibratory plate transports the bolts to be drilled to the feeding position, and then the gripper mechanism picks them up and places them on the corresponding positioning block. The positioning mechanism and clamping mechanism on the positioning block position and clamp the bolts. Then the center rotates, moving the positioning block to the station of the automatic drilling mechanism, which drills the bolts on the positioning block. After the drilling is completed, the central turntable rotates again, moving the positioning block to the station of the automatic unloading mechanism, where the gripper mechanism on the automatic unloading mechanism picks up the bolts and puts them into the material bucket. This realizes continuous bolt drilling and automated loading and unloading, greatly improving bolt processing efficiency. Attached Figure Description

[0011] Figure 1 This is a top view of the bolt side hole processing equipment of this utility model;

[0012] Figure 2 This is a schematic diagram of the positioning block in the bolt side hole processing equipment of this utility model;

[0013] Figure 3 This is a schematic diagram of the gripper mechanism in the bolt side hole processing equipment of this utility model.

[0014] Reference numerals: 1. Central turntable; 2. Automatic feeding mechanism; 3. Automatic punching mechanism; 4. Automatic unloading mechanism; 5. Positioning block; 6. Support frame; 7. Feeding vibratory plate; 8. Elastic positioning sleeve; 9. Opening; 10. Through hole; 11. Clamping block; 12. Clamping hole; 13. First clamping surface; 14. Second clamping surface; 15. Electric telescopic rod; 16. Support rod; 17. Drive plate; 18. Translation bracket; 19. Grip plate; 20. Grip cylinder; 21. Lifting cylinder; 22. Guide rod. Detailed Implementation

[0015] 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.

[0016] 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.

[0017] Reference Figures 1 to 3 The present invention will be further described below.

[0018] A bolt side hole processing device includes a frame (figure omitted), a central turntable is provided on the frame, and an automatic feeding mechanism, an automatic drilling mechanism and an automatic unloading mechanism are provided around the central turntable. Several sets of fixtures are provided on the central turntable, each set of fixtures including at least one positioning block. The automatic feeding mechanism, the automatic drilling mechanism and the automatic unloading mechanism each correspond to a set of fixtures. The positioning block is provided with a positioning mechanism and a clamping mechanism. The automatic feeding mechanism and the automatic unloading mechanism each include a support frame and a gripper mechanism slidably connected to the support frame. The automatic feeding mechanism also includes a feeding vibratory plate, and the automatic unloading mechanism also includes a material bucket (figure omitted).

[0019] Specifically, a drive mechanism is provided between the central turntable and the frame to drive the central turntable to rotate.

[0020] like Figures 1 to 3 As shown, the vibratory feeder transports the bolts to be drilled to the feeding position, where they are then gripped by the claw mechanism and placed on the corresponding positioning block. The positioning and clamping mechanisms on the positioning block position and clamp the bolts. Then, the center rotates, moving the positioning block to the station of the automatic drilling mechanism, which drills the bolts on the positioning block. After drilling, the center turntable rotates again, moving the positioning block to the station of the automatic unloading mechanism, where the claw mechanism grips the bolts and places them into the hopper. This process achieves continuous bolt drilling and automated loading and unloading, greatly improving bolt processing efficiency.

[0021] Specifically, the automatic drilling device includes a movable motor with a drill bit mounted on it.

[0022] like Figure 1 As shown, specifically, each set of fixtures includes two positioning blocks, namely, two bolts are loaded and unloaded at one time, and two bolts are processed at one time.

[0023] like Figure 2 As shown, in this preferred embodiment, the positioning mechanism includes an elastic positioning sleeve, one end of which is fixedly connected to a positioning block. The elastic positioning sleeve has two opposing openings that divide it into two arc-shaped clamps. The elastic positioning sleeve also has a through hole that connects to the opening. The clamping mechanism drives the two arc-shaped clamps.

[0024] Specifically, the bolt to be processed is placed into the elastic positioning sleeve, and then the clamping mechanism drives two arc-shaped clamping plates to approach the bolt. The bolt is clamped by the inner side of the arc-shaped clamping plates, and the side of the bolt is exposed through the through hole. The automatic drilling mechanism drills holes in the bolt through the through hole.

[0025] like Figure 2 As shown in the example, the preferred clamping mechanism includes a clamping block and a lifting drive mechanism for driving the clamping block to rise and fall. The clamping block is provided with a clamping hole, and the elastic positioning sleeve is located in the clamping hole. An inclined first clamping surface is provided on the outer side of the elastic positioning sleeve, and a second clamping surface is provided on the inner side of the clamping hole. The first clamping surface and the second clamping surface are in wedge-shaped contact.

[0026] Specifically, Figure 2 The clamping mechanism shown is in a clamping state.

[0027] Specifically, when the clamping block descends, the wedge-shaped engagement of the first and second clamping surfaces brings the two arc-shaped clamping plates closer to the bolt until the bolt is clamped.

[0028] like Figure 2 As shown, specifically, the elastic positioning sleeve is provided with two first clamping surfaces, one above the other, and two corresponding second clamping surfaces are provided in the clamping hole to improve the clamping effect on the bolt.

[0029] like Figure 2 As shown in the example, in a preferred embodiment, the lifting drive mechanism includes an electric telescopic rod, a plurality of support rods are provided on the clamping block, the support rods are slidably connected to the positioning block, a drive plate is provided between the plurality of support rods, and the drive plate is connected to the electric telescopic rod.

[0030] like Figure 3As shown in the example, in a preferred embodiment, the gripper mechanism includes a translation bracket, a gripper plate is vertically connected to the translation bracket, the gripper plate is provided with gripper cylinders corresponding to the number of positioning blocks in a set of fixtures, and the gripper cylinders are provided with gripping fingers.

[0031] Specifically, the translation bracket is slidably connected to the support frame, and a driving mechanism is provided between the translation bracket and the support frame.

[0032] like Figure 3 As shown, specifically, the translation bracket is equipped with a lifting cylinder, and the piston rod of the lifting cylinder is connected to the clamping plate, which drives the clamping plate to rise and fall.

[0033] Specifically, the gripper plate is provided with a guide rod, which is slidably connected to the translation bracket.

[0034] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A bolt side hole processing device, characterized in that: The device includes a frame with a central turntable. An automatic feeding mechanism, an automatic punching mechanism, and an automatic unloading mechanism are arranged around the central turntable. Several sets of fixtures are mounted on the central turntable, each set including at least one positioning block. Each of the automatic feeding, automatic punching, and automatic unloading mechanisms corresponds to one set of fixtures. The positioning blocks are equipped with positioning and clamping mechanisms. Both the automatic feeding and automatic unloading mechanisms include a support frame and a gripper mechanism slidably connected to the support frame. The automatic feeding mechanism also includes a feeding vibratory feeder, and the automatic unloading mechanism includes a material hopper.

2. The bolt side hole processing equipment according to claim 1, characterized in that: The positioning mechanism includes an elastic positioning sleeve, one end of which is fixedly connected to a positioning block. The elastic positioning sleeve has two opposing openings that divide it into two arc-shaped clamps. The elastic positioning sleeve also has a through hole that connects to the opening. The clamping mechanism drives the two arc-shaped clamps.

3. The bolt side hole processing equipment according to claim 2, characterized in that: The clamping mechanism includes a clamping block and a lifting drive mechanism for lifting the clamping block. The clamping block is provided with a clamping hole. The elastic positioning sleeve is located in the clamping hole. An inclined first clamping surface is provided on the outer side of the elastic positioning sleeve. A second clamping surface is provided on the inner side of the clamping hole. The first clamping surface and the second clamping surface are in wedge contact.

4. The bolt side hole processing equipment according to claim 3, characterized in that: The lifting drive mechanism includes an electric telescopic rod, and a plurality of support rods are provided on the clamping block. The support rods are slidably connected to the positioning block, and a drive plate is provided between the plurality of support rods. The drive plate is connected to the electric telescopic rod.

5. The bolt side hole processing equipment according to claim 1, characterized in that: The gripper mechanism includes a translation bracket, on which a gripper plate is vertically connected. The gripper plate is equipped with gripper cylinders corresponding to the number of positioning blocks in a set of fixtures, and the gripper cylinders are equipped with gripping fingers.