A feeding device for tapping automobile bolts

Abstract

The application relates to the field of bolt processing devices, and discloses a feeding device for automobile bolt tapping processing, which comprises a supporting frame, a feeding frame and a driving module for driving the feeding frame, a plurality of discharging grooves for placing workpieces are arranged on the top of the supporting frame, the top surface of the feeding frame is flush with the groove bottom surface of the discharging grooves, an adjusting assembly corresponding to the position of one column of the discharging grooves is arranged between the feeding frame and the supporting frame, and the adjusting assembly and the column of the discharging grooves correspond to the center line of the supporting frame in the length direction. Through cooperation between the supporting frame, the feeding frame, the discharging grooves and the adjusting assembly, the adjusting assembly can be moved above the workpieces and lowered, the workpieces can be compacted after the adjusting assembly contacts the workpieces, the workpieces can be limited at the center of the discharging grooves in the length direction of the supporting frame, and then the workpieces are automatically corresponded to the front and back of the tapping module, so that the subsequent tapping operation is facilitated and the tapping effect is ensured.

Description

Technical Field

[0001] This invention relates to the field of bolt processing equipment technology, and in particular to a feeding device for tapping automotive bolts. Background Technology

[0002] A turnbuckle is an adjustable-length connector consisting of a threaded rod at both ends and a central adjusting sleeve (the sleeve is a ring of a certain length). Its applications in automobiles are mainly concentrated in modification, racing, commercial vehicles, and repair applications. When machining a turnbuckle, the sleeve needs to be laid flat so that its two ends align with the tapping module to complete the tapping operation.

[0003] For example, Chinese Patent Publication No. CN215903064U discloses a streamlined drilling and tapping device for turnbuckles. This device includes two vertically placed feed plates, a support plate located outside the feed plates, a lifting mechanism for the feed plates' vertical movement, and a drive mechanism for the feed plates' horizontal linear movement. The two support plates are arranged side-by-side, with several support grooves (first type) spaced apart on their upper surfaces. The feed plates also have several support grooves (second type) spaced apart on their upper surfaces. Drilling and tapping equipment are respectively installed on the outer sides of the two support plates near the support grooves (first type). A streamlined conveyor device for feeding turnbuckles is also located near the drive mechanism. This device improves the efficiency of turnbuckle drilling and tapping, and the streamlined conveyor device enables streamlined turnbuckle feeding, significantly increasing work efficiency.

[0004] This application uses a support groove on the support plate to place the workpiece. However, it has high requirements for the size of the workpiece. If there is a deviation in size, the tapping machine and the workpiece will be misaligned, which will affect the tapping effect after multiple workpieces are transported. Therefore, it has certain limitations in use.

[0005] Therefore, it is necessary to provide a feeding device for tapping automotive bolts to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to provide a feeding device for tapping automotive bolts, in order to solve the problems mentioned in the background art, such as poor adaptability to workpiece size and inability to ensure the correspondence between the workpiece and the tapping machine.

[0007] To achieve the above objectives, a feeding device for tapping automotive bolts is designed that can clamp the workpiece from top to bottom and achieve the alignment of the workpiece with the front and rear of the tapping machine.

[0008] Based on the above ideas, the present invention provides the following technical solution: a feeding device for tapping automotive bolts, comprising a support frame, a feeding frame, and a drive module for driving the feeding frame. The top of the support frame is provided with several feeding slots for placing workpieces. The top surface of the feeding frame is flush with the bottom surface of the feeding slots. An adjustment component corresponding to the position of one of the feeding slots is provided between the feeding frame and the support frame. The adjustment component corresponds vertically to the center line of the feeding slot along the length of the support frame. When the drive module drives the feeding frame to descend from the initial position, the adjustment component descends synchronously with the feeding frame, and the adjustment component can slide towards the support frame.

[0009] As a further embodiment of the present invention: the adjustment component includes a base that slides with the feeding frame and a slider that slides with the support frame. The surface of the base is fixedly installed with pressure blocks corresponding to the upper and lower parts of the feeding trough. A first spring is fixedly installed between the base and the feeding frame. A traction rope is fixedly connected between the base and the slider.

[0010] As a further aspect of the present invention: the bottom of the pressure block is provided with two symmetrically designed inclined sides, and the intersection of the two inclined sides corresponds vertically to the center line of the corresponding material discharge groove along the length direction of the support frame.

[0011] As a further aspect of the present invention: the top of the feeding rack is provided with a groove for the base to slide, the base slides back and forth relative to the feeding rack based on the groove, and the surface of the feeding rack is provided with through holes to avoid the back and forth sliding of the base.

[0012] As a further aspect of the present invention: the slider and the support frame slide back and forth along the length direction of the support frame, and the surface of the feeding frame is provided with a groove for the slider to slide, and the slider slides up and down relative to the feeding frame based on the groove.

[0013] As a further aspect of the present invention: the traction rope passes through the inside of the feeding frame. When the feeding frame rises, the traction rope can be pulled to move the base away from the support frame based on the feeding frame. When the feeding frame falls, the traction rope can be released to move the base closer to the support frame based on the feeding frame.

[0014] As a further embodiment of the present invention: the front and rear inner walls of the support frame both protrude inward to form an inner lining platform, and the inner lining platform corresponds to the base in front and back. A clearance groove is provided between the support frame and the inner lining platform to allow the base to move.

[0015] As a further aspect of the present invention: the bottom of the clearance groove is lower than the bottom of the base, so that there is a gap between the bottoms of the two when the base slides into the clearance groove.

[0016] As a further aspect of the present invention: push blocks are fixedly installed on opposite sides of the two pressure blocks, and the surfaces of the push blocks away from the pressure blocks are provided with beveled edges, and the beveled edges of the two push blocks are in an inverted V-shape.

[0017] As a further aspect of the present invention: the support frame and the feeding frame are both provided with vertical grooves, which correspond vertically to the push block and are sized to match.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the cooperation between the support frame, feeding frame, unloading chute, and adjusting component, the adjusting component can be moved above the workpiece and then lowered. When the adjusting component contacts the workpiece, it can both clamp the workpiece and limit the workpiece to the center of the unloading chute along the length of the support frame, thereby automatically aligning the workpiece with the tapping module, facilitating subsequent tapping operations and ensuring tapping effect. After tapping is completed, the clamping and limiting of the workpiece by the adjusting component also facilitates the disengagement of the tapping module from the workpiece, preventing the workpiece from shifting or misaligning along the unloading chute and ensuring the accurate movement of the workpiece by the subsequent feeding frame.

[0019] Meanwhile, by adjusting the components, the applicability of this device can be greatly improved, making it suitable for workpieces of different sizes. When the adjusting components contact the inner walls on the left and right sides of workpieces of different sizes, they can push the workpieces to move until they correspond to the center of the feeding trough, reducing the trouble of replacement and assembly when processing workpieces of different sizes. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a perspective view of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the inner lining platform and clearance groove structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the base, slider, and traction rope structure of the present invention;

[0024] Figure 4 for Figure 3 Enlarged view of the structure at point A in the middle;

[0025] Figure 5 This is a schematic diagram of the tapping module and feeding groove structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the support frame and vertical groove structure of the present invention;

[0027] Figure 7 for Figure 6 Enlarged view of the structure at point B in the middle;

[0028] Figure 8 This is a schematic diagram of the pusher block and vertical groove of the present invention;

[0029] Figure 9 This is a schematic diagram of the pressure block and side plate structure of the present invention;

[0030] Figure 10 for Figure 9 Enlarged view of the structure at point C.

[0031] In the diagram: 1. Support frame; 2. Feeding frame; 3. Drive module; 4. Feeding chute; 5. Adjustment component; 6. Tapping module; 7. Push block; 8. Vertical groove; 101. Inner liner platform; 102. Clearance groove; 201. Groove; 202. Slide groove; 203. Through hole; 501. Base; 502. Pressure block; 503. First spring; 504. Traction rope; 505. Slider; 701. Side plate; 702. Support rod; 703. Short shaft; 704. Second spring; 705. Long hole. Detailed Implementation

[0032] Example

[0033] Please see Figures 1 to 5 This invention provides a feeding device for tapping automotive bolts, specifically for tapping and feeding workpieces (sleeves) when they are laid flat. It primarily aims to ensure stable alignment between the workpiece and the tapping module 6 after feeding, guaranteeing the processing effect. The device includes a support frame 1 for supporting the workpiece, a feeding rack 2 for conveying the workpiece on the outer side of the support frame 1, a drive module 3 for driving the feeding rack 2 inside the support frame 1, and several equidistant feeding slots 4 for placing the workpiece on the top of the support frame 1. The top surface of the feeding rack 2 is flush with the bottom surface of the feeding slots 4.

[0034] The drive module 3 includes a longitudinal cylinder and a transverse cylinder for driving the feeder 2 to move. The longitudinal cylinder lifts the feeder 2 and drives the workpieces to rise synchronously, while the transverse cylinder drives the feeder 2 and the workpieces to move horizontally. When the longitudinal cylinder lifts the feeder 2, it can raise all the workpieces on the support frame 1, at which point the workpieces are separated from the support frame 1. When the transverse cylinder moves the feeder 2, it can move all the workpieces horizontally and align them vertically with the next feeding trough 4. Then, the longitudinal cylinder drives the feeder 2 to descend, so that the workpieces return to the state of contact with the support frame 1.

[0035] Furthermore, an adjustment component 5 corresponding to the position of one of the feed troughs 4 is provided between the feed rack 2 and the support frame 1. When the longitudinal cylinder drives the feed rack 2 to rise, the feed rack 2 can drive the adjustment component 5 to rise, and the adjustment component 5 can also slide away from the support frame 1 based on the feed rack 2. When the longitudinal cylinder drives the feed rack 2 to descend based on the initial height of the feed rack 2, the feed rack 2 can drive the adjustment component 5 to descend, and the adjustment component 5 can slide towards the support frame 1 based on the feed rack 2. Moreover, the adjustment component 5 can slide to a state of overlapping with the support frame 1. In this process, the upper and lower limits of the workpiece can be realized from top to bottom.

[0036] Furthermore, refer to Figure 5 The adjusting component 5 and the corresponding feeding groove 4 are vertically aligned along the center line of the support frame 1. This allows the adjusting component 5 to limit the workpiece from top to bottom while also centering the workpiece in the left-right direction, thus enabling the workpiece to automatically align with the tapping module 6. The tapping module 6 can be fixedly installed on the support frame 1, and its vertical misalignment with the feeding frame 2 will not affect its movement. The tapping module 6 also aligns with the center line of the feeding groove 4 in the left-right direction.

[0037] In this embodiment, the support frame 1, the feeding frame 2, the longitudinal cylinder, the transverse cylinder, and the tapping module 6 are all existing mature technologies, and their specific structures and usage methods are not described in detail here.

[0038] Reference Figure 1 and Figure 2 In this embodiment, preferably, the front and rear inner walls of the support frame 1 both protrude inward to form an inner lining platform 101, and the inner lining platform 101 and the adjustment component 5 are in a front-to-back position corresponding to each other. A clearance groove 102 is opened between the support frame 1 and the inner lining platform 101 to allow the adjustment component 5 to move. When the adjustment component 5 slides to a state of overlapping with the support frame 1, it enters the clearance groove 102.

[0039] The clearance groove 102 has a length that can move in the vertical direction, so that the adjustment component 5 can smoothly enter the clearance groove 102 when the feeding frame 2 descends. And because the inner liner platform 101 increases the front-to-back distance of the clearance groove 102, the adjustment component 5 can smoothly slide towards the side closer to the support frame 1.

[0040] Reference Figures 2 to 4In this embodiment, preferably, the adjusting component 5 includes a base 501 that slides with the feeding frame 2 and a slider 505 that slides with the support frame 1. The bottom of the clearance groove 102 is lower than the bottom of the base 501, so that the base 501 can normally enter the clearance groove 102 when it is raised and lowered by the longitudinal cylinder. A pressure block 502 corresponding to the upper and lower parts of the discharge groove 4 is fixedly installed on the surface of the base 501. The bottom of the pressure block 502 is provided with two symmetrical inclined sides, and the intersection of the two inclined sides corresponds to the center line of the discharge groove 4 along the length direction of the support frame 1.

[0041] Meanwhile, a first spring 503 is fixedly installed between the base 501 and the feeding frame 2. The first spring 503 causes the base 501 to have a tendency to slide towards the support frame 1. A traction rope 504 passing through the feeding frame 2 is fixedly connected between the base 501 and the slider 505. When the feeding frame 2 rises, the traction rope 504 can be pulled to move the base 501 forward / backward. When the feeding frame 2 falls, the traction rope 504 can be released to make the base 501 close towards the middle.

[0042] The top of the feeding rack 2 has a groove 201 for the base 501 to slide. The base 501 slides back and forth relative to the feeding rack 2 based on the groove 202, while the slider 505 slides left and right with the support frame 1. At the same time, a through hole 203 can be opened on the surface of the feeding rack 2 away from the support frame 1 to avoid the back and forth sliding of the base 501, so that the base 501 will not interfere with the feeding rack 2 when it slides away from the support frame 1.

[0043] Furthermore, the surface of the feeding rack 2 near the support frame 1 is provided with a groove 202 for the slider 505 to slide. The slider 505 slides up and down relative to the feeding rack 2 based on the groove 202. At this time, when the feeding rack 2 moves up and down under the action of the longitudinal cylinder, the slider 505 will not move. However, when the feeding rack 2 moves left and right under the action of the transverse cylinder, it can drive the slider 505 to move synchronously. At this time, the slider 505 can keep in sync with the base 501 and will not affect the use of the traction rope 504.

[0044] In the above structure, the initial position of the base 501 relative to the feeder 2 can be correspondingly defined, so that when the base 501 is in the initial position relative to the feeder 2, the base 501 and the workpiece are in a staggered state, so that the base 501 will not contact or interfere with the workpiece when it is being transported by the feeder 2. Alternatively, the height of the unloading module (not shown in the figure) for receiving the processed workpiece can be relatively increased, so that its height is higher than the top surface of the support frame 1. This way, after the feeder 2 carries the processed workpiece to the unloading module, the base 501 is still in a state of separation to the front and rear sides, which can also avoid contact and interference between the base 501 and the workpiece.

[0045] In use, the workpiece falls onto the feeding trough 4. The longitudinal cylinder starts first, driving the feeding frame 2 and the workpiece to rise. During this process, the traction rope 504 will drive the base 501 to separate to the front / back and squeeze the first spring 503. The transverse cylinder then starts, driving the feeding frame 2 and the workpiece to move to the left above the next feeding trough 4. Then the longitudinal cylinder starts, driving the feeding frame 2 and the workpiece to descend until the support frame 1 and the feeding frame 2 return to their initial state of complete overlap. Then the transverse cylinder starts, driving the feeding frame 2 to move to the right and reset. During this process, the workpiece will be blocked in the feeding trough 4. Even if the rightward reset of the feeding frame 2 comes into contact with the workpiece, it will not cause it to be misaligned by a large distance.

[0046] Next, the longitudinal cylinder drives the feeding frame 2 to continue descending from its initial position. At this time, the traction rope 504 is released, causing the base 501 to slide towards the support frame 1 under the action of the first spring 503. When sliding, the base 501 enters the clearance groove 102 and descends synchronously with the feeding frame 2. When the pressure block 502 contacts the inner wall of the workpiece in the left-right direction, the two inclined sides can automatically push the workpiece to the center of the unloading groove 4 in the left-right direction. At this time, the workpiece can be aligned with the tapping module 6, and the pressure block 502 also has the effect of pressing the workpiece. The tapping module 6 can then be started smoothly to complete the tapping operation.

[0047] In summary, through the cooperation of the support frame 1, the feeding frame 2, the base 501, and the pressure block 502, the pressure block 502 can be moved above the workpiece and then lowered. When the two inclined edges contact, the workpiece can be pressed firmly and confined to the center of the feed groove 4 in the left-right direction. This allows the workpiece to automatically align with the tapping module 6, facilitating subsequent tapping operations and ensuring the tapping effect. After tapping is completed, the pressing effect of the pressure block 502 on the workpiece also facilitates the separation of the tapping module 6 from the workpiece, preventing the workpiece from shifting or misaligning along the feed groove 4 and ensuring the accurate movement of the workpiece by the feeding frame 2.

[0048] Meanwhile, the two inclined sides of this device greatly expand its applicability, making it suitable for workpieces of different sizes. When in contact with the inner walls of the left and right sides of workpieces of different sizes, it can push the workpiece to move until it corresponds to the center of the feed trough 4 in the left and right direction, reducing the trouble of replacement and assembly when processing workpieces of different sizes. Example

[0049] Please see Figures 1 to 8 Based on Example 1, considering that the workpiece may not be at the center of the support frame 1 in the front-back direction after it falls into the feeding groove 4 (front-back misalignment), if the tapping modules 6 on both the front and back sides move forward at the same time, one of the tapping modules 6 will contact the workpiece first and push the workpiece to move. It is impossible to realize the process of two tapping modules 6 contacting each other and starting processing at the same time, which affects the overall tapping effect.

[0050] Therefore, push blocks 7 are fixedly installed on opposite sides of the two pressure blocks 502. The surface of the push blocks 7 away from the pressure blocks 502 is also provided with bevels, and the bevels of the two push blocks 7 are inverted V-shapes. As the pressure blocks 502 descend with the base 501, the push blocks 7 move synchronously, so that the two push blocks 7 contact the front and rear inner walls of the workpiece respectively, thereby achieving the effect of automatic centering of the workpiece along the front and rear direction of the support frame 1.

[0051] Furthermore, vertical grooves 8 are provided on both the support frame 1 and the feeding frame 2, which are vertically corresponding to and size-matched to the push block 7. When the push block 7 descends with the pressure block 502, the vertical grooves 8 can provide a clearance effect for the push block 7, avoiding interference between the push block 7 and the support frame 1 and the feeding frame 2, and also ensuring smooth contact between the push block 7 and the front and rear inner walls of the workpiece.

[0052] In use, the support frame 1, feeding frame 2, and pressure block 502 can move the pressure block 502 to both clamp the workpiece and confine it to the center of the discharge trough 4 in the left-right direction. The working process and effect of this part are the same as in Embodiment 1, and will not be repeated here. The difference is that when the longitudinal cylinder drives the feeding frame 2 to continue to descend from the initial position, the inclined edge of the pressure block 502 contacts the left and right inner walls of the workpiece to achieve left-right positioning and provide a clamping effect on the workpiece; at the same time, the pressure block 502 also drives the push block 7 to move, so that the two push blocks 7 contact the front and rear inner walls of the workpiece respectively, thereby enabling the workpiece to be positioned and centered in the front-back direction within the discharge trough 4.

[0053] Compared to Embodiment 1, through the cooperation of structures such as the pressure block 502, the vertical groove 8, and the support frame 1, the movement of the pressure block 502 achieves both clamping of the workpiece and left-right positioning and centering. Simultaneously, it drives the push blocks 7 to move synchronously, causing the two push blocks 7 to contact the front and rear inner walls of the workpiece, thereby achieving positioning and centering of the workpiece along the front-rear direction. This allows the two tapping modules 6 to simultaneously contact the workpiece, ensuring reliable overall tapping performance. The overall solution, combined with the movement of the pressure block 502, and because the push blocks 7 limit the front and rear movement of the workpiece, facilitates the rapid separation of the subsequent tapping modules 6 from the workpiece. Example

[0054] Please see Figures 1 to 10 Based on Embodiment 2, considering that the tapping module 6 will penetrate the workpiece along the front-back direction to form an internal thread during processing, and that the push block 7 may interfere with the penetration tapping of the tapping module 6 when it contacts the front / back inner wall of the workpiece.

[0055] Therefore, the push block 7 is improved: the push block 7 now includes a support rod 702 that slides with the pressure block 502. A second spring 704 is sleeved on the outer surface of the support rod 702, and the second spring 704 causes the support rod 702 to tend to extend out of the pressure block 502. A short shaft 703 is rotatably mounted on the outer surface of the support rod 702. A side plate 701 is fixedly mounted on the end of the short shaft 703, and a torsion spring (not shown in the figure) is sleeved on the outer surface of the short shaft 703. The torsion spring causes the side plate 701 to tend to deflect based on the short shaft 703, thereby causing the bottom of the side plate 701 to fit against the pressure block 502. At this time, the opposing surfaces of the side plate 701 and the pressure block 502 form a V-shape, and the surface of the side plate 701 away from the pressure block 502 forms a bevel.

[0056] In the above structure, the side plate 701 is based on the vertical groove 8 and is sized to fit it. The surface of the side plate 701 is provided with a long hole 705 for avoiding the tapping module 6. The side plate 701 can make stable contact with the front / rear inner wall of the workpiece, and the tapping module 6 will enter the long hole 705 even if it penetrates the workpiece during processing.

[0057] In use, the support frame 1, feeding frame 2, and pressure block 502 can move the pressure block 502 to both press the workpiece and confine it to the center of the discharge groove 4 in the left-right direction. The pressure block 502, vertical groove 8, and support frame 1 allow the two push blocks 7 to contact the front and rear inner walls of the workpiece, achieving positioning and centering of the workpiece in the front-back direction. This process and effect are the same as in Embodiment 2 and will not be repeated here. The difference lies in that when the pressure block 502 moves the support rod 702 and side plate 701, the second spring 704 causes the support rod 702 to extend from the pressure block 502, allowing the two side plates 701 to stably contact the front and rear inner walls of the workpiece, thus achieving positioning and centering of the workpiece in the front-back direction of the support frame 1. The elongated hole 705 also allows the tapping module 6 to stably avoid obstacles during tapping operations.

[0058] Compared to Embodiment 2, the combination of the pressure block 502, support rod 702, side plate 701, and elongated hole 705 allows the two side plates 701 to contact the front and rear inner walls of the workpiece, achieving positioning and centering of the workpiece along the front and rear direction of the support frame 1. Simultaneously, the elongated hole 705 effectively avoids the tapping module 6 during processing, ensuring stable overall tapping. The overall solution, combined with the push block 7, utilizes the extension tendency of the support rod 702 driven by the second spring 704, resulting in a large tilt angle for the side plate 701 in its initial state. Even as the pressure block 502 moves into the clearance groove 102 along with the base 501, stable contact between the side plate 701 and the inner wall of the workpiece is maintained. Furthermore, this design improves the applicability to different workpiece sizes, making it more versatile.

Claims

1. A feeding device for tapping automotive bolts, comprising a support frame, a feeding frame, and a drive module for driving the feeding frame, wherein the top of the support frame has a plurality of feeding slots for placing workpieces, characterized in that, The top surface of the feeding rack is flush with the bottom surface of the feeding trough. An adjustment component corresponding to the position of one of the feeding troughs is provided between the feeding rack and the support frame. The adjustment component corresponds vertically to the center line of the feeding trough along the length of the support frame. When the drive module drives the feeding rack to descend from the initial position, the adjustment component descends synchronously with the feeding rack, and the adjustment component can slide towards the support frame. The adjustment assembly includes a base that slides with the feeding frame and a slider that slides with the support frame. The surface of the base is fixedly installed with pressure blocks corresponding to the upper and lower parts of the feeding trough. A first spring is fixedly installed between the base and the feeding frame. A traction rope is fixedly connected between the base and the slider. The top of the feeding rack has a groove for the base to slide. The base slides back and forth relative to the feeding rack based on the groove. The surface of the feeding rack has through holes to avoid the back and forth sliding of the base. The slider and the support frame slide back and forth along the length of the support frame. The surface of the feeding frame is provided with a groove for the slider to slide. The slider slides up and down relative to the feeding frame based on the groove. The traction rope passes through the inside of the feeding frame. When the feeding frame rises, the traction rope can be pulled to move the base away from the support frame based on the feeding frame. When the feeding frame descends, the traction rope can be released to move the base closer to the support frame based on the feeding frame.

2. The feeding device for tapping automotive bolts according to claim 1, characterized in that, The bottom of the pressure block is provided with two symmetrically designed inclined sides, and the intersection of the two inclined sides corresponds vertically to the center line of the corresponding material discharge groove along the length of the support frame.

3. The feeding device for tapping automotive bolts according to any one of claims 1-2, characterized in that, The front and rear inner walls of the support frame both protrude inward to form an inner lining platform, and the inner lining platform corresponds to the base in front and back. A clearance groove is opened between the support frame and the inner lining platform to allow the base to move.

4. The feeding device for tapping automotive bolts according to claim 3, characterized in that, The bottom of the clearance groove is lower than the bottom of the base, so that there is a gap between the bottoms of the two when the base slides into the clearance groove.

5. The feeding device for tapping automotive bolts according to claim 3, characterized in that, Push blocks are fixedly installed on opposite sides of the two pressure blocks. The surfaces of the push blocks away from the pressure blocks are provided with bevels, and the bevels of the two push blocks are in an inverted V-shape.

6. The feeding device for tapping automotive bolts according to claim 5, characterized in that, The support frame and the feeding frame are both provided with vertical grooves, which correspond vertically to the push block and are sized to match.

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