Automatic feeding device suitable for square bars

Abstract

The utility model relates to the field of automatic machining, and particularly discloses an automatic feeding device suitable for square bars. The automatic feeding device comprises a feeding assembly, a lifting assembly and a feeding assembly, the lifting assembly comprises bar bearing units and a lifting driving unit, the number of the bar bearing units is not less than two, each bar bearing unit comprises two bearing shafts, the two bearing shafts incline upwards and are distributed at an included angle of 90 degrees, and the lifting driving unit drives the two bearing shafts to rotate. A bar receiving groove is formed between the two receiving shafts, and the two receiving shafts are each sleeved with a roller; the bar receiving grooves of all the bar receiving units are horizontally aligned and jointly form a bar receiving interval; the feeding assembly comprises a feeding clamping jaw and a feeding driving piece. According to the automatic feeding device, automatic feeding of the square-section bars can be achieved, circumferential positioning can be reliably carried out, and the automatic feeding device has the advantages of being high in automation degree and reliable in feeding.

Description

Technical Field

[0001] The utility model relates to the field of automatic processing, in particular to an automatic feeding device suitable for square bar stock. Background Art

[0002] With the gradual increase of labor costs, the automation of production and processing is an inevitable trend. At present, the automation of processing modules has become more and more mature. For example, general-purpose CNC machining centers and various special-purpose machine tools. However, there is a certain contradiction between the versatility and processing efficiency of processing modules. For example, the general-purpose CNC machining center has good versatility, but the debugging is relatively complex, and usually requires manual operations such as loading and unloading, clamping, and tool setting, and the processing efficiency is relatively low, which is suitable for small-batch trial production of products; while the special-purpose machine tool has high processing efficiency but no versatility.

[0003] One of the important factors hindering the improvement of the production efficiency of general machine tools is the difficulty in realizing the versatility of the loading module. For example, many parts are processed using bar stock as raw material, and after cutting, they are subjected to finish machining. However, the bar stock is usually long, and it is difficult to achieve continuous automatic loading, which greatly limits the improvement of processing efficiency. The Chinese invention patent application with the application number 202211437422.6 discloses an automatic loading system and loading method for bar stock, including a frame, a stockpile lifting module, a bar sorting module, and a bar feeding module. The bar feeding module includes a bearing and positioning assembly, a height adjustment assembly, and an axial feeding assembly. The height adjustment assembly drives the bearing and positioning assembly to move in the vertical direction. It can realize the automatic sorting and feeding of bar stock, and has the advantage of high automation.

[0004] However, the above automatic loading system is mainly designed for cylindrical bar stock. Since the cylindrical bar stock has no difference in the circumferential direction and does not require circumferential positioning, there are certain limitations. The purpose of this application is to design a special automatic feeding device for square bar stock. Summary of the Invention

[0005] The technical problem to be solved by the utility model is to provide an automatic feeding device suitable for square bar stock, which can realize the automatic feeding of square-section bar stock and can reliably perform circumferential positioning, and has the advantages of high automation and reliable feeding.

[0006] To solve the above technical problem, the technical solution provided by the utility model is as follows: An automatic feeding device suitable for square bar stock, including a feeding component, a lifting component, and a feeding component. The feeding component is used to convey the bar stock to the lifting component one by one;

[0007] The lifting assembly includes a bar receiving unit and a lifting drive unit. The number of the bar receiving units is not less than two. The bar receiving unit includes two receiving shafts. The two receiving shafts are inclined upward and distributed at an angle of 90°. A bar receiving groove is formed between the two receiving shafts. Rollers are respectively sleeved on the two receiving shafts. The bar receiving grooves of each bar receiving unit are horizontally aligned and together form a bar receiving interval.

[0008] The bar receiving unit has at least two positions. In the first position, the bar receiving unit corresponds to the feeding assembly, and in the second position, the bar receiving unit corresponds to the feeding assembly. The second position is located above the first position. The lifting drive unit is used to drive each bar receiving unit to move synchronously and transfer between the first position and the second position.

[0009] The feeding assembly comprises a feeding jaw and a feeding driving member, and the feeding driving member is used to drive the feeding jaw to reciprocate along the extension direction of the bar receiving section.

[0010] During the loading operation, the feeding assembly transports the bar to the lifting assembly, the lifting assembly adjusts the height position of the bar, and finally gradually feeds it axially through the feeding assembly and transports it section by section to the processing device for unloading operation.

[0011] Since the reliable clamping method for square bars during processing is diagonal clamping, and the bar receiving unit adopts the bottom receiving positioning form of the bar receiving groove, when the specifications of the bars are different, the positioning deviation of the bars between the automatic feeding device and the processing device is different. In the process of lifting the bars, the lifting component can play a good vertical compensation role according to the specifications of the bars, offset the positioning deviation, and improve the positioning accuracy.

[0012] When the bar is fed axially, the bar and the bar receiving unit roll relative to each other, which can reduce friction and vibration.

[0013] Preferably, the feeding assembly comprises a feeding conveyor belt, a bar positioning mold is provided on the feeding conveyor belt, and the feeding conveyor belt is used to drive the bar positioning mold to move.

[0014] Preferably, the number of the feeding conveyor belts is at least two, and the feeding conveyor belts are arranged in parallel; the bar positioning molds between the feeding conveyor belts correspond one to one.

[0015] Preferably, the feeding assembly further comprises an orientation detection unit, and the orientation detection unit is located on one side of the feeding conveyor belt and is arranged toward the bar positioning mold.

[0016] However, when the sides of the bar are different, the circumferential orientation of the bar can be detected and positioned by the orientation detection unit, thereby ensuring the accurate orientation of the bar during transportation.

[0017] Preferably, it further includes a first bracket and a second bracket, the first bracket is located on one side of the second bracket, the feeding assembly is arranged on the first bracket, and the lifting assembly and the feed assembly are arranged on the second bracket; the discharge end of the feeding conveyor belt corresponds to the second bracket, and the lifting assembly is located on the side of the second bracket facing the first bracket.

[0018] Preferably, the lifting assembly includes a lifting drive and a lifting chain, and the rod receiving unit corresponds to the lifting chain one by one and is connected; the lifting drive is used to drive the lifting chain to work, and then drive the rod receiving unit to move up and down.

[0019] Preferably, the lifting drive component includes a lifting motor and a lifting transmission rod, the lifting motor is used to drive the lifting transmission rod to rotate; a plurality of lifting sprockets are fixedly arranged on the lifting transmission rod, and the lifting sprockets correspond to and mesh with the lifting chains one by one.

[0020] The chain transmission form is adopted, and the transmission ratio and precision are more reliable. At the same time, multiple lifting chains are synchronously driven by the lifting transmission rod, which can effectively ensure the synchronization of the movement of each lifting chain.

[0021] Preferably, the feed drive comprises a feed motor, a feed screw and a feed slider, the feed motor is used to drive the feed screw to rotate, and the feed slider is threadedly connected to the feed screw; the feed clamp is arranged on the feed slider.

[0022] Preferably, it further comprises an adjustment component, and when the bar receiving unit is in the second position state, the adjustment component is aligned with the bar receiving section;

[0023] The adjustment assembly includes an adjustment push unit and an end positioning unit, and in the horizontal direction, the bar receiving unit is located between the adjustment push unit and the end positioning unit;

[0024] The end positioning unit includes a positioning sensor, and the adjustment pushing unit is used to drive the rod to move along the extension direction of the rod receiving interval. When the rod moves to a specific distance from the end of the positioning sensor, it is considered to be adjusted in place and the adjustment pushing unit stops working.

[0025] After the bar is lifted to the second position and before loading, the assembly is adjusted to axially position the bar, thereby providing accuracy guarantee for subsequent feeding operations of the feeding assembly and clamping and unloading operations of the processing device, and reducing waste of the bar.

[0026] Preferably, the end positioning unit further includes a feeding drive member for driving the positioning sensor to move in a vertical plane.

[0027] The arrangement of the feeding drive member can adjust the position of the positioning sensor. When adjustment operations are carried out, the positioning sensor moves to align with the bar receiving section. After the adjustment operations are completed, the positioning sensor moves to be misaligned with the bar receiving section, leaving space for the feeding of the bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of the processing equipment applicable to the processing of the eccentric features of square bars in this embodiment;

[0029] Figure 2 is a schematic structural diagram of the automatic feeding device in the processing equipment applicable to the processing of the eccentric features of square bars in this embodiment;

[0030] Figure 3 is a side view of the automatic feeding device in the processing equipment applicable to the processing of the eccentric features of square bars in this embodiment;

[0031] Figure 4 is a schematic structural diagram of the feeding assembly in the processing equipment applicable to the processing of the eccentric features of square bars in this embodiment;

[0032] Figure 5 is a top view of the feeding assembly in the processing equipment applicable to the processing of the eccentric features of square bars in this embodiment;

[0033] Figure 6 is a schematic structural diagram of the cooperation of the lifting assembly, the feeding assembly and the adjustment assembly in the processing equipment applicable to the processing of the eccentric features of square bars in this embodiment, where the bar receiving unit is in the first position state at this time;

[0034] Figure 7 is a schematic structural diagram of the cooperation of the lifting assembly, the feeding assembly and the adjustment assembly in the processing equipment applicable to the processing of the eccentric features of square bars in this embodiment, where the bar receiving unit is in the second position state at this time;

[0035] Figure 8 is Figure 7 a partial enlarged view of part A in

[0036] Figure 9 is Figure 7 a partial enlarged view of part B in

[0037] Figure 10 is a formal diagram of the cooperation of the lifting assembly, the feeding assembly and the adjustment assembly in the processing equipment applicable to the processing of the eccentric features of square bars in this embodiment;

[0038] Figure 11The structural schematic diagram of the bar receiving unit in the processing equipment applicable to the processing of the eccentric characteristics of square bars in this embodiment;

[0039] Figure 12 The side view of the bar receiving unit in the processing equipment applicable to the processing of the eccentric characteristics of square bars in this embodiment;

[0040] Figure 13 The structural schematic diagram of the processing module in the processing equipment applicable to the processing of the eccentric characteristics of square bars in this embodiment;

[0041] Figure 14 The forward half-sectional view of the processing module in the processing equipment applicable to the processing of the eccentric characteristics of square bars in this embodiment;

[0042] Figure 15 The side view of the processing module in the processing equipment applicable to the processing of the eccentric characteristics of square bars in this embodiment;

[0043] Figure 16 The structural schematic diagram of the clamping assembly in the processing equipment applicable to the processing of the eccentric characteristics of square bars in this embodiment;

[0044] Figure 17 The front view of the clamping assembly in the processing equipment applicable to the processing of the eccentric characteristics of square bars in this embodiment;

[0045] Figure 18 is Figure 17 The partial enlarged view at position C in;

[0046] Figure 19 The partial view of the cooperation between the eccentric fixture and the rotary fixture base in the processing equipment applicable to the processing of the eccentric characteristics of square bars in this embodiment, including the eccentric adjustment assembly. Detailed implementation manners

[0047] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Embodiment

[0048] As Figure 1 shown, a processing equipment applicable to the processing of the eccentric characteristics of square bars includes an automatic feeding device 2 and a processing module 1.

[0049] As Figures 2 - 5As shown, the automatic feeding device 2 includes a feeding assembly 21, a lifting assembly 22 and a feeding assembly 23. The feeding assembly 21 includes a feeding conveyor belt 214. The feeding conveyor belt 214 is provided with a bar positioning mold 213. The feeding conveyor belt 214 is used to drive the bar positioning mold 213 to move. The feeding assembly 21 is used to automatically convey the raw materials to the lifting assembly 22 one by one.

[0050] like Figures 2 - 5 As shown, specifically, the number of the feeding conveyor belts 214 is at least two, and each feeding conveyor belt 214 is arranged in parallel. The bar positioning molds 213 between each feeding conveyor belt 214 correspond to each other. In order to ensure the synchronization of the operation of each feeding conveyor belt 214, the feeding assembly 21 also includes a feeding drive 211 and a feeding transmission rod 212. The feeding drive 211 drives the feeding transmission rod 212 to rotate, and each of the feeding conveyor belts 214 and the feeding transmission rod 212 is driven by a belt.

[0051] Further, such as Figure 5 As shown, the feeding assembly 21 further includes an orientation detection unit 215, which is located on one side of the feeding conveyor belt 214 and is arranged toward the bar positioning mold 213. When the sides of the bar are different, the circumferential orientation of the bar can be detected and positioned by the orientation detection unit 215, thereby ensuring the accurate orientation of the bar during transportation.

[0052] like Figure 6 and Figure 7 As shown, the lifting assembly 22 includes a rod receiving unit 223 and a lifting drive unit. The number of the rod receiving units 223 is not less than two. The rod receiving units 223 are provided with rod receiving grooves. The rod receiving grooves of each rod receiving unit 223 are horizontally aligned and together form a rod receiving interval.

[0053] like Figure 6 and Figure 7 As shown, the bar receiving unit 223 has at least two position states: in the first position state, the bar receiving unit 223 corresponds to the feeding assembly 21, and in the second position state, the bar receiving unit 223 corresponds to the feeding assembly 23 and is aligned with the loading and unloading station 11 of the processing base 12; the second position state is located above the first position state, and the lifting drive unit is used to drive each bar receiving unit 223 to move synchronously and transfer between the first position state and the second position state.

[0054] Specifically, Figure 6 , Figure 7 and Figure 10As shown, the lifting assembly 22 includes a lifting drive and a lifting chain, and the bar receiving unit 223 corresponds to the lifting chain one by one and is connected; the lifting drive is used to drive the lifting chain to work, and then drive the bar receiving unit 223 to move up and down.

[0055] like Figure 6 , Figure 7 and Figure 10 As shown, specifically, the lifting drive component includes a lifting motor 221 and a lifting transmission rod 222, and the lifting motor 221 is used to drive the lifting transmission rod 222 to rotate; a plurality of lifting sprockets are fixedly arranged on the lifting transmission rod 222, and the lifting sprockets correspond to and mesh with the lifting chains one by one.

[0056] By adopting the chain transmission form, the transmission ratio and accuracy are more reliable. At the same time, multiple lifting chains are synchronously driven through the lifting transmission rod 222, which can effectively ensure the synchronization of the movement of each lifting chain.

[0057] Further, such as Figure 11 and Figure 12 As shown, the bar receiving unit 223 includes two receiving shafts 2231, which are inclined upward and distributed at an angle of 90°, and a bar receiving groove is formed between the two receiving shafts 2231. Rollers 2232 are respectively sleeved on the two receiving shafts 2231. When the bar is axially fed, the bar and the bar receiving unit 223 roll relative to each other, which can reduce friction and vibration.

[0058] like Figure 6 , Figure 7 and Figure 10 As shown, the feed assembly 23 includes a feed jaw 233 and a feed drive, and the feed drive is used to drive the feed jaw 233 to reciprocate along the extension direction of the bar receiving interval.

[0059] like Figure 6 , Figure 7 and Figure 10 As shown, specifically, the feed drive comprises a feed motor 231, a feed screw 232 and a feed slider, the feed motor 231 is used to drive the feed screw 232 to rotate, the feed slider is threadedly connected to the feed screw 232; the feed jaw 233 is arranged on the feed slider.

[0060] During the loading operation, the feeding assembly 21 conveys the bar material to the lifting assembly 22, the lifting assembly 22 adjusts the height position of the bar material, and finally gradually feeds the bar material axially through the feeding assembly 23, and conveys it section by section to the processing module 1 for unloading operation.

[0061] Since the reliable clamping method for square bar stock during processing is diagonal clamping, and the bar stock receiving unit 223 uses the form of receiving and positioning at the bottom of the bar stock receiving groove, when the specifications of the bar stock are different, the positioning deviation degree of the bar stock between the automatic feeding device 2 and the processing module 1 is different. During the process of the lifting assembly 22 lifting the bar stock, it can play a good role in vertical direction compensation for the specifications of the bar stock, offset the positioning deviation, and improve the positioning accuracy.

[0062] As Figures 7 - 9 shown, further, it further includes an adjustment assembly. When the bar stock receiving unit 223 is in the second position state, the adjustment assembly is arranged in alignment with the bar stock receiving section.

[0063] As Figures 7 - 9 shown, the adjustment assembly includes an adjustment pushing unit 261 and an end positioning unit 262. In the horizontal direction, the bar stock receiving unit 223 is located between the adjustment pushing unit 261 and the end positioning unit 262, and the end positioning unit 262 is arranged close to the processing module 1.

[0064] As Figures 7 - 9 shown, the end positioning unit 262 includes a positioning sensor 261 and a feeding driving member 2621. The feeding driving member 2621 is used to drive the positioning sensor 261 to move in the vertical plane. The adjustment pushing unit 261 is used to drive the bar stock to move along the extension direction of the bar stock receiving section. When the end of the bar stock moves to a specific distance from the positioning sensor 261, it is regarded as the adjustment being in place, and the adjustment pushing unit 261 stops working.

[0065] After the bar stock is lifted to the second position state and before feeding, the adjustment assembly works to perform axial positioning on the bar stock, providing accuracy guarantee for the subsequent feeding operation of the feeding assembly 23 and the clamping and blanking operation of the processing module 1, and at the same time, it can reduce the waste of the bar stock. The setting of the feeding driving member can adjust the position of the positioning sensor 261. When an adjustment operation is performed, the positioning sensor 261 moves to be aligned with the bar stock receiving section. After the adjustment operation is completed, the positioning sensor 261 moves to be misaligned with the bar stock receiving section to leave space for the feeding of the bar stock.

[0066] As Figure 2 and Figure 3 shown, it further includes a first bracket 24 and a second bracket 25. The first bracket 24 is located on one side of the second bracket 25. The feeding assembly 21 is arranged on the first bracket 24. The lifting assembly 22, the feeding assembly 23, and the adjustment assembly are arranged on the second bracket 25. The discharge end of the feeding conveyor belt 214 corresponds to the second bracket 25. The lifting assembly 22 is located on the side of the second bracket 25 facing the first bracket 24.

[0067] As Figures 13 - 15As shown, the processing module 1 includes a processing base 12 and a clamping assembly 16. The processing base 12 is provided with a number of workstations, including a loading and unloading workstation 11 and at least one processing workstation. At least one of the processing workstations is provided with a radial processing unit 13, and at least one of the processing workstations is provided with an axial processing unit 14.

[0068] As Figure 16 and Figure 17 shown, the clamping assembly 16 includes a rotary fixture base 162, an eccentric fixture 161 and a rotary drive member. The eccentric fixture 161 is arranged on the rotary fixture base 162. Two relatively arranged chucks 1613 are provided on the eccentric fixture 161, and a clamping interval is formed between the two chucks 1613.

[0069] As Figure 16 and Figure 17 shown, the rotary fixture base 162 is rotatably arranged on the processing base 12. The rotary drive member is used to drive the rotary fixture base 162 to rotate, so as to realize the transfer of the eccentric fixture 161 between each workstation.

[0070] As Figure 18 shown, the rotary fixture base 162 is provided with a fixture mounting position. The fixture mounting position is provided with a mounting plane 163, and the mounting plane 163 is arranged parallel to the rotation center line of the rotary fixture base 162. The eccentric fixture 161 is located on the mounting plane 163. The clamping directions of the two chucks 1613 are perpendicular to the rotation center line of the rotary fixture base 162 and are simultaneously arranged at an angle of 45° with respect to the mounting plane 163. The chucks 1613 are provided with V-shaped clamping grooves, the opening angle of the V-shaped clamping grooves is 90°, and the V-shaped clamping grooves face the clamping interval and are arranged oppositely left and right.

[0071] The cutting end of the radial processing unit 13 is arranged radially towards the rotation center line of the rotary fixture base 162, and the cutting end of the radial processing unit 13 is aligned with the clamping interval of the corresponding eccentric fixture 161.

[0072] Specifically, the number of the processing workstations is at least two, and at least two of the processing workstations are provided with radial processing units 13.

[0073] As Figure 17 shown, specifically, the number of the fixture mounting positions is at least two, and each fixture mounting position is circumferentially evenly distributed around the rotation center line of the rotary fixture base 162. The eccentric fixture 161 corresponds to the fixture mounting position one by one.

[0074] During processing, first, the automatic feeding device 2 operates to convey the bar stock 3 to be processed to the loading and unloading station 11. The eccentric clamp 161 at the loading and unloading station 11 clamps the bar stock to be processed. Subsequently, the rotation driving member operates, and the rotating fixture base 162 rotates relative to the processing machine base 12, and the eccentric clamp 161 is transferred from the loading and unloading station 11 to the processing station along with it. Each processing station performs processing operations on the bar stock. Finally, the rotation driving member continues to operate, the rotating fixture base 162 rotates relative to the processing machine base 12, and the eccentric clamp 161 is transferred to the loading and unloading station 11 along with it for unloading operation.

[0075] Since the radial processing unit 13 is centered, and the eccentric clamp 161 is inclined to one side, the centering of the radial processing unit 13 can be ensured in the form of part offset, thus avoiding the formation of bending moment and ensuring the processing quality.

[0076] Since the opening angle of the V-shaped clamping groove is 90°, and at the same time, the clamping directions of the two chucks 1613 are perpendicular to the rotation center line of the rotating fixture base 162 and are simultaneously at an angle of 45° with respect to the installation plane 163. After the bar stock is reliably clamped, a set of side surfaces will be parallel to the installation plane 163, and this set of side surfaces is simultaneously perpendicular to the cutting end of the radial processing unit 13, facilitating the cutting processing of features perpendicular to the corresponding plane.

[0077] As Figure 14 shown, further, the processing module 1 further includes a cutting component 15. The cutting component 15 is located at the loading and unloading station 11, and the cutting component 15 includes a bar stock cutting unit. The cutting component 15 is used to cut the long bar stock into blanks of a specific length one by one to prepare for subsequent processing operations.

[0078] Specifically, the eccentric clamp 161 is slidably arranged on the installation plane 163, and the sliding direction is perpendicular to the rotation center line of the rotating fixture base 162.

[0079] As Figure 19 shown, the clamping component 16 further includes an eccentric adjustment component. The eccentric adjustment component is arranged on the rotating fixture base 162 and is used to drive the eccentric clamp 161 to slide relative to the rotating fixture base 162.

[0080] Through the sliding arrangement of the eccentric clamp 161, the movement of the clamped bar stock can be correspondingly driven. That is, on the basis of the unchanged position of the radial processing unit 13, the eccentricity of the corresponding processing feature can be adjusted. By adjusting the processing eccentricity, the processing of products with different eccentricity models can be adapted, and the versatility of the processing equipment can be improved. In addition, when there are at least two features with different eccentricities on a single part that need to be processed, the adjustment can also be achieved by sliding the eccentric clamp 161.

[0081] As shown Figure 19 Specifically, the eccentric fixture 161 further includes an adjustment block 1611. An intermediate mounting inclined surface 1612 is provided on the adjustment block 1611. The intermediate mounting inclined surface 1612 is arranged parallel to the rotation center line of the rotary fixture base 162 and is inclined relative to the mounting plane 163. The chuck 1613 is slidably arranged on the intermediate mounting inclined surface 1612.

[0082] The eccentric adjustment assembly includes an adjustment drive unit and a lead screw drive unit. The adjustment drive unit is connected to the eccentric fixture 161 through the lead screw drive unit and drives the eccentric fixture 161 to slide and adjust.

[0083] By providing the adjustment block 1611 and the intermediate mounting inclined surface 1612, the inclined eccentricity setting of the eccentric fixture 161 is realized, and the installation and movement control of the chuck 1613 are more convenient. In addition, the lead screw drive mechanism can be used to adjust the eccentric fixture 161. At the same time, because the lead screw mechanism has a certain self-locking ability in the reverse direction, the position of the eccentric fixture 161 after adjustment can be ensured to be stable.

[0084] A processing method suitable for processing the eccentric characteristics of square bar materials uses the above-mentioned processing equipment.

[0085] It at least includes the following steps:

[0086] S1. Loading: Place the bar material into the bar positioning die 213 of the feeding conveyor belt 214. The automatic feeding device 2 works, and the bar materials to be processed are sequentially conveyed to the bar receiving unit 223 of the lifting assembly 22. The lifting assembly 22 is rotated from the first position state to the second position state. The adjustment assembly performs axial adjustment and positioning on the bar material. Finally, the feeding assembly 23 works, and the bar material is conveyed to the loading and unloading station 11. The eccentric fixture 161 located at the loading and unloading station 11 clamps the bar material to be processed.

[0087] S2. Rotation: The cutting assembly 15 works to cut the bar material to a specific length. The rotation drive member works, and the rotary fixture base 162 rotates relative to the processing machine base 12. The eccentric fixture 161 is transferred from the loading and unloading station 11 to the processing station accordingly.

[0088] S3. Processing: Perform processing operations on the bar material. The rotation drive member continues to work, and the rotary fixture base 162 rotates relative to the processing machine base 12. The eccentric fixture 161 is sequentially rotated to each processing station until all processing operations are completed. When the eccentric fixture 161 is transferred to the processing station provided with the radial processing unit 13, the eccentric adjustment assembly works to adjust the eccentric distance, and the bar material is processed corresponding to the radial processing unit 13.

[0089] S4. Blanking: The rotation driving part continues to work, the rotary fixture seat 162 rotates relative to the processing machine base 12, and the eccentric fixture 161 is transferred to the loading and unloading station 11 accordingly to perform the blanking operation.

[0090] In conclusion, the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automatic feeding device suitable for square bars, characterized in that: It includes a feeding assembly, a lifting assembly and a feeding assembly, wherein the feeding assembly is used to transport the bars to the lifting assembly one by one; The lifting assembly includes a bar receiving unit and a lifting drive unit. The number of the bar receiving units is not less than two. The bar receiving unit includes two receiving shafts. The two receiving shafts are inclined upward and distributed at an angle of 90°. A bar receiving groove is formed between the two receiving shafts. Rollers are respectively sleeved on the two receiving shafts. The bar receiving grooves of each bar receiving unit are horizontally aligned and together form a bar receiving interval. The bar receiving unit has at least two positions. In the first position, the bar receiving unit corresponds to the feeding assembly, and in the second position, the bar receiving unit corresponds to the feeding assembly. The second position is located above the first position. The lifting drive unit is used to drive each bar receiving unit to move synchronously and transfer between the first position and the second position. The feeding assembly comprises a feeding jaw and a feeding driving member, and the feeding driving member is used to drive the feeding jaw to reciprocate along the extension direction of the bar receiving section.

2. The automatic feeding device according to claim 1, characterized in that: The feeding assembly comprises a feeding conveyor belt, on which a bar positioning die is arranged, and the feeding conveyor belt is used to drive the bar positioning die to move.

3. The automatic feeding device according to claim 2, characterized in that: The number of the feeding conveyor belts is at least two, and the feeding conveyor belts are arranged in parallel; the bar positioning molds between the feeding conveyor belts correspond one to one.

4. The automatic feeding device according to claim 2, characterized in that: The feeding assembly further comprises an orientation detection unit, which is located on one side of the feeding conveyor belt and is arranged toward the bar positioning mold.

5. The automatic feeding device according to claim 2, characterized in that: It also includes a first bracket and a second bracket, the first bracket is located on one side of the second bracket, the feeding assembly is arranged on the first bracket, and the lifting assembly and the feeding assembly are arranged on the second bracket; the discharge end of the feeding conveyor belt corresponds to the second bracket, and the lifting assembly is located on the side of the second bracket facing the first bracket.

6. The automatic feeding device according to claim 1, characterized in that: The lifting assembly includes a lifting drive and a lifting chain. The bar receiving unit corresponds to the lifting chain one by one and is connected. The lifting drive is used to drive the lifting chain to work, and then drive the bar receiving unit to move up and down.

7. The automatic feeding device according to claim 6, characterized in that: The lifting drive component includes a lifting motor and a lifting transmission rod, the lifting motor is used to drive the lifting transmission rod to rotate; a plurality of lifting sprockets are fixedly arranged on the lifting transmission rod, and the lifting sprockets correspond to and mesh with the lifting chains one by one.

8. The automatic feeding device according to claim 1, characterized in that: The feed drive comprises a feed motor, a feed screw and a feed slider. The feed motor is used to drive the feed screw to rotate. The feed slider is threadedly connected to the feed screw. The feed clamp is arranged on the feed slider.

9. The automatic feeding device according to any one of claims 1 to 8, characterized in that: It also includes an adjustment component, when the bar receiving unit is in the second position state, the adjustment component is aligned with the bar receiving section; The adjustment assembly includes an adjustment push unit and an end positioning unit, and in the horizontal direction, the bar receiving unit is located between the adjustment push unit and the end positioning unit; The end positioning unit includes a positioning sensor, and the adjustment pushing unit is used to drive the rod to move along the extension direction of the rod receiving interval. When the rod moves to a specific distance from the end of the positioning sensor, it is considered to be adjusted in place and the adjustment pushing unit stops working.

10. The automatic feeding device according to claim 9, characterized in that: The end positioning unit further comprises a feed drive member, which is used to drive the positioning sensor to move in a vertical plane.

Images