A fixture clamping mechanism

Abstract

The present invention relates to the field of workpiece clamping, in particular to a tool fixture clamping mechanism, which includes a support frame and a conveying device, a lifting slide is provided on the support frame, a lifting support plate for placing the workpiece is slidably provided between the lifting slide, a cross groove is provided on the lifting support plate, a bottom clamping unit is provided in the cross groove, the front and rear ends of the support frame are both provided with clamping grooves, a C-shaped plate is provided on the clamping groove, a waist clamping unit is provided on the C-shaped plate, and a material diverting unit driven by the waist clamping unit is provided on the support frame. The bottom clamping unit includes a bottom clamping assembly for clamping the bottom of the workpiece and located at the upper end of the lifting support plate, and a bottom drive assembly for driving the bottom clamping assembly, the bottom of the workpiece can be clamped by the bottom clamping assembly to ensure the stability of the workpiece, and the workpiece on the lifting support plate is driven up and down by the bottom drive assembly, and the upper and lower positions of the workpiece can be changed according to needs when processing the workpiece, thereby improving the applicability of the present application.

Description

Technical Field

[0001] The present invention relates to the field of workpiece clamping, and in particular to a fixture clamping mechanism. Background Art

[0002] Fixtures are tools used to fix, clamp and install workpieces during industrial production, maintenance and processing. They are usually made of metal materials and have a sturdy structure and reliable clamping capabilities, which enable the workpiece to be fixed in the fixture during the processing process.

[0003] In daily production and processing, most production lines can only clamp and support a single workpiece or processing device, which is not very applicable. In addition, after the existing clamping device initially clamps the workpiece, the workpiece can only be processed and installed at a specific angle and position. When the workpiece needs to be processed at a different angle, it can only be clamped by using other clamps, which greatly reduces the efficiency of production and processing. With the development of science and technology, technicians in related fields have also made a lot of optimizations to the clamping mechanism of tooling fixtures. In order to make a more accurate comparison, for example, Chinese patent publication number CN216781102U discloses a clamping mechanism for tooling fixtures.

[0004] When in use, the locking block is driven inward by the driving mechanism. After the clamping rod abuts against the workpiece, the elastic part is compressed until the clamping rod and the arc-shaped downward pressure rod are respectively pressed against the workpiece. Under the driving force of the driving mechanism and the compression reaction force of the elastic part, the clamping rod forms a sufficient inward clamping force on the workpiece, and the arc-shaped downward pressure rod can form an inclined downward clamping force on the workpiece, thereby improving the locking effect and locking stability of the workpiece.

[0005] Driven by the driving mechanism, the clamping rod is driven to press against the side wall of the workpiece. With the further action of the driving mechanism, the elastic member is compressed until the clamping rod is pressed between the end of the limiting hole and the workpiece, thereby locking the workpiece. Since the inner ends of the arc-shaped lower pressure rod are respectively located on the inner sides of the inner ends of the corresponding clamping rods, the arc-shaped lower pressure rod will effectively press between the workpiece and the locking block under the state of elastic deformation, and the workpiece will be locked under the action of the compression of the arc-shaped lower pressure rod and the reaction force of its elastic deformation.

[0006] However, the clamping mechanism for the above-mentioned tooling fixture still has some shortcomings during actual use: 1. When the above-mentioned clamping mechanism is processing the workpiece, the workpiece needs to be manually placed in the clamping device, which greatly reduces the production efficiency of the workpiece. In the process of clamping the workpiece, the adaptability to different workpieces is low, and it can only clamp workpieces of some specific shapes, and its applicability is low.

[0007] 2. When the above-mentioned clamping mechanism clamps the workpiece, the height and orientation of the workpiece are fixed at the same position. The angle of the workpiece cannot be automatically changed according to actual processing requirements. The clamping position of the workpiece can only be adjusted by manual adjustment, which greatly reduces the efficiency of workpiece processing.

[0008] 3. After the workpiece is processed, the above device needs to manually remove the workpiece from the clamping mechanism, and in the process of removing the workpiece, the clamping mechanism needs to be loosened. When the workpiece is loosened by the clamping assembly, the clamping assembly cannot be loosened synchronously under the drive of the cylinder, and one end of the workpiece will be skewed by the pushing force, causing damage to the workpiece.

[0009] Therefore, based on the above-stated viewpoint, there is still room for improvement in the existing fixture clamping mechanism. Summary of the Invention

[0010] In order to solve the above problems, the present invention provides a tooling fixture clamping mechanism, including a support frame and a conveying device arranged on both sides of the support frame, the left and right inner walls of the support frame are provided with lifting slides, a lifting support plate for placing workpieces is slidably arranged between the lifting slides, a cross groove is provided on the lifting support plate, a bottom clamping unit is provided in the cross groove, the front and rear ends of the support frame are provided with clamping grooves, a C-shaped plate is provided on the outer surface of the clamping groove, a waist clamp unit is provided on the C-shaped plate, and a material shifting unit driven by the waist clamp unit is provided on the support frame.

[0011] The bottom clamping unit comprises a bottom clamping assembly for clamping the bottom of the workpiece and located at the upper end of the lifting pallet, and a bottom driving assembly for driving the bottom clamping assembly.

[0012] Preferably, the bottom clamping assembly includes a driven slider, a bottom drive assembly, a driven clamping block, an adjusting clamping rod, an arc clamping plate, an arc patch, a limiting circular plate and a tension spring, at least four driven sliders distributed in a cross shape are slidably arranged in the cross groove, and the lower end of the driven slider passes through the cross groove and is connected to the bottom drive assembly, the upper end of the driven slider is provided with a driven clamping block, and the driven clamping blocks are slidably penetrated by a plurality of adjusting clamping rods, an arc clamping plate is provided at one end of the adjusting clamping rod close to the middle of the cross groove, an arc patch that fits the outer wall of the workpiece is provided on the arc inner wall, a limiting circular plate is provided at one end of the adjusting clamping rod away from the middle of the cross groove, and a tension spring connected to the corresponding limiting circular plate and the driven clamping block is provided on the outer surface of the adjusting clamping rod.

[0013] Preferably, the bottom drive assembly includes a limit support block, a double-sided gear ring, a gear groove, a driven gear, a rotating motor, a driving gear, a transmission rack, a T-shaped block, a cross-shaped frame, and a lifting cylinder. A plurality of limit support blocks distributed in a ring are uniformly arranged at the lower end of the lifting support plate. A double-sided gear ring is rotatably arranged between the limit support blocks. Gear grooves corresponding to the cross-shaped through grooves are uniformly formed at the lower end of the lifting support plate. A driven gear is rotatably arranged in the gear groove, and the driven gear meshes with the inner side of the double-sided gear ring. A rotating motor is arranged below the lifting support plate through a motor seat.

[0014] A driving gear meshing with the outer side of the double-sided gear ring is arranged on the outer side of the output shaft of the rotating motor. The lower ends of the driven sliders all pass through the cross-shaped through groove and are provided with transmission racks meshing with the corresponding driven gears. A T-shaped block connected to the lifting support plate is slidably penetrated through the middle of the transmission rack. A cross-shaped frame is arranged at the lower end of the lifting support plate. A lifting cylinder connected to the support frame is arranged at the lower middle of the cross-shaped frame.

[0015] Preferably, the waist clamp unit includes a support rotating rod, a feeding unit, an opening and closing assembly, an opening and closing rotating plate, a pressing rotating rod, a clamping assembly, and a servo motor. The support rotating rod is rotatably arranged between the inner walls of the U-shaped plate. One end of the support rotating rod passes through the corresponding U-shaped plate and is connected to the feeding unit. An opening and closing assembly for driving its rotation adjustment is arranged between the support rotating rods. An opening and closing rotating plate is fixedly sleeved on the outer side of the support rotating rod. A pressing rotating rod is rotatably penetrated through the upper end of the opening and closing rotating plate. A clamping assembly is arranged on the opposite sides of the pressing rotating rod. The opposite side of one of the pressing rotating rods passes through the corresponding opening and closing rotating plate and is provided with a servo motor. The servo motor is connected to the corresponding opening and closing rotating plate through a motor seat. A first torsion spring is arranged between the other pressing rotating rod and the corresponding opening and closing rotating plate.

[0016] Preferably, the opening and closing assembly includes an adjusting gear, a Z-shaped rack, a U-shaped limiting frame, and a driving motor. The adjusting gears are symmetrically arranged on both sides of the outer side of the support rotating rod. A Z-shaped rack is arranged between the lower sides of the adjusting gears located on both sides of the support frame in a meshing manner. U-shaped limiting frames slidably connected to the outer sides of both ends of the Z-shaped rack are arranged. The other end of one of the support rotating rods passes through the corresponding U-shaped plate and is provided with a driving motor. The driving motor is connected to the support frame through a motor seat.

[0017] Preferably, the clamping assembly includes fixing holes, a linkage adjusting plate, an adjusting bolt, a sliding shaft, a limiting round block, a rectangular plate, a pressing strip, a return compression spring, a pressing rotating shaft, and a clamping branch chain. A number of fixing holes are uniformly formed along the extending surface of the pressing rotating rod. A linkage adjusting plate is slidably arranged on the outer side of the pressing rotating rod. An adjusting bolt is penetrated through the middle of the upper end of the linkage adjusting plate by means of thread fitting. The lower end of the adjusting bolt is located in a corresponding fixing hole. Sliding shafts are symmetrically and slidably penetrated through both sides of the linkage adjusting plate. Limiting round blocks are arranged at one ends of the sliding shafts close to the corresponding opening and closing rotating plates. Rectangular plates are arranged on the opposite sides of the support rotating rods.

[0018] The two ends of the rectangular plate are symmetrically slidably provided with tightening strips connected to the corresponding sliding shafts, and a reset compression spring is provided on the outer side of the sliding shaft. The reset compression spring is located between the corresponding rectangular plate and the linkage adjustment plate. A tightening rotating shaft is rotatably provided between the corresponding tightening strips, and two torsion springs are provided at both ends of the tightening rotating shaft. The fixed end of the two torsion springs is connected to the tightening strip, and the movable end in the middle of the two torsion springs is connected to the tightening rotating shaft. A clamping support chain is provided on the outer side of the tightening rotating shaft.

[0019] Preferably, the clamping support chain includes a clamping sleeve, an adjusting rod, a clamping plate, a plug-in rod, a side connecting block, a clamping side rod, a side clamping block and a rubber sheet. The clamping sleeve is sleeved on the outer side of the rotating shaft, and a plurality of adjusting rods are evenly penetrated on the clamping sleeve by a sliding fit. A clamping plate is provided between the upper and lower corresponding adjusting rods, and plug-in grooves are evenly opened on the upper adjusting rod. The plug-in rod located in the corresponding plug-in groove is slidably inserted on the clamping sleeve in a detachable manner.

[0020] Both ends of the tightening shaft pass through the corresponding tightening strips and are provided with side connecting blocks. A clamping side rod is rotatably passed through the side connecting block, and a torsion spring is provided between the clamping side rod and the corresponding side connecting block. A side clamping block that is symmetrical up and down is fixedly sleeved on the outer surface of the clamping side rod, and rubber sheets are provided on the side clamping blocks and the clamping plates.

[0021] Preferably, the material digging unit includes a linkage shaft one, a linkage shaft two, a pulley one, a transmission belt one, an L-shaped support plate, a support side plate, a linkage shaft three, a pulley two, a transmission belt two, a linkage gear one, a linkage gear ring, a gear shaft one, a linkage gear two, a gear shaft two, a rectangular block, a material digging shaft, a material digging arc plate and a material digging assembly. The linkage shaft one is installed at one end of the supporting rotating rod, and the linkage shaft two is rotatably provided at the upper end of the U-shaped plate. Pulley one is provided on the outer sides of the linkage shaft two and the linkage shaft one, and a transmission belt one is provided between the pulleys one. An L-shaped support plate is symmetrically provided on one side of the upper end of the support frame, and the right end of the L-shaped support plate is provided with a support side plate, and the middle of the support side plate is rotatably provided with a linkage shaft three.

[0022] The second and third linkage shafts are both fixedly provided with pulleys. A transmission belt is provided between the corresponding pulleys. A linkage gear is provided on the third linkage shaft. A linkage gear ring is provided on the outer side of the linkage gear, which is meshed with the gear shaft. A gear shaft connected to an L-shaped support plate is provided in the middle of the linkage gear ring. A linkage gear second meshed with the gear shaft is provided on the outer side of the linkage gear ring. A gear shaft second rotatably connected to the L-shaped support plate is provided in the middle of the linkage gear shaft. The heights of the front and rear gear shafts are inconsistent. Rectangular blocks are symmetrically provided on the left and right ends of the support frame. A material diverter shaft is rotatably provided between the corresponding two rectangular blocks. A material diverter arc plate is provided on the material diverter shaft. The inclined surfaces of the two material diverter arc plates are arranged from top to bottom toward the middle of the support frame. A material diverter assembly is provided at the upper end of the gear shaft.

[0023] Preferably, the material shifting assembly includes a material shifting rod and a material shifting plate. The material shifting rod is fixedly sleeved on the outer surface of the upper end of the gear shaft 2. The material shifting rod is rotatably provided with a material shifting plate at one end away from the corresponding gear shaft 2, and a torsion spring 4 is also provided between the material shifting plate and the material shifting rod.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. The present invention can clamp the bottom of the workpiece on all four sides through the bottom clamping assembly in the bottom clamping unit to ensure the stability of the workpiece during processing. At the same time, the present application can also drive the workpiece on the lifting plate to move up and down through the bottom drive assembly in the bottom clamping unit, and change the upper and lower positions of the workpiece according to needs when processing the workpiece, thereby improving the applicability of the present application.

[0026] 2. The present invention can firmly clamp the waist of the workpiece through the waist clamp unit to meet different processing requirements. In addition, the present application can also drive the workpiece to rotate through the opening and closing components in the waist clamp unit to achieve processing or detection of various angles of the workpiece, further improving the applicability of the present application.

[0027] 3. The present invention can move the workpiece on the conveyor to the lifting plate for clamping through the material shifting unit, and can also push the processed workpiece to the next conveyor, eliminating the tedious process of manual loading and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below with reference to the accompanying drawings and examples.

[0029] Figure 1 It is a structural schematic diagram of the present invention.

[0030] Figure 2 It is a structural schematic diagram of the present invention.

[0031] Figure 3 It is a structural schematic diagram of the bottom clamp assembly of the present invention.

[0032] Figure 4 It is a structural schematic diagram of the waist clip unit of the present invention.

[0033] Figure 5 It is a structural schematic diagram of the clamping assembly and the clamping branch chain of the present invention.

[0034] Figure 6 It is a structural schematic diagram of the bottom drive assembly of the present invention.

[0035] Figure 7 It is a structural schematic diagram of the bottom drive assembly of the present invention.

[0036] Figure 8 It is a structural schematic diagram of the opening and closing component of the present invention.

[0037] Figure 9 It is a schematic structural diagram of the blanking unit and the blanking component of the present invention.

[0038] In the figure, 1 is a support frame; 10 is a conveying device; 11 is a workpiece; 12 is a lifting chute; 13 is a lifting support plate; 14 is a cross through groove; 2 is a bottom clamping unit; 15 is a clamping through groove; 16 is a U-shaped plate; 20 is a bottom clamping component; 201 is a driven slider; 202 is a driven clamping block; 203 is an adjusting clamping rod; 204 is an arc-shaped clamping plate; 205 is an arc-shaped patch; 206 is a limiting circular plate; 207 is a tightening tension spring; 3 is a waist clamping unit; 30 is a supporting rotating rod; 301 is an opening and closing rotating plate; 302 is a tightening rotating rod; 303 is a servo motor; 31 is a clamping component; 310 is a fixing hole; 311 is a linkage adjusting plate; 312 is an adjusting bolt; 313 is a sliding shaft; 314 is a limiting circular block; 315 is a rectangular plate; 316 is a tightening strip; 317 is a reset compression spring; 318 is a tightening rotating shaft; 32 is a clamping branch chain; 320 is a clamping sleeve; 321 is an adjusting rod; 322 is a clamping sticker; 323 is an inserting rod; 324 is a side connecting block; 325 is a clamping side rod; 326 is a side clamping block; 327 is a rubber sheet; 4 is a bottom driving component; 40 is a limiting support block; 41 is a double-sided toothed ring; 42 is a gear groove; 43 is a driven gear; 44 is a rotating motor; 45 is a driving gear; 46 is a transmission rack; 47 is a T-shaped block; 48 is a cross-shaped frame; 49 is a lifting cylinder; 5 is an opening and closing component; 50 is an adjusting gear; 51 is a Z-shaped rack; 52 is a C-shaped limiting frame; 53 is a driving motor; 6 is a blanking unit; 60 is a linkage shaft one; 601 is a linkage shaft two; 602 is a pulley one; 603 is a transmission belt one; 604 is an L-shaped support plate; 605 is a supporting side plate; 606 is a linkage shaft three; 607 is a pulley two; 608 is a transmission belt two; 609 is a linkage gear one; 610 is a linkage toothed ring; 611 is a gear shaft one; 612 is a linkage gear two; 613 is a gear shaft two; 614 is a rectangular block; 615 is a blanking rotating shaft; <616> is a blanking arc plate; 62 is a blanking component; 620 is a blanking rod; 621 is a blanking plate. Detailed implementation manners

[0039] The following will Figure 1 be combined with Figure 9 the accompanying drawings to describe the embodiments of the present invention in detail. However, the present invention can be implemented in many different ways defined and covered by the claims.

[0040] The embodiment of the present application discloses a tool fixture clamping mechanism, which explains that the tool fixture clamping mechanism is mainly used to automatically clamp the workpiece during the production process, and can firmly clamp the bottom and waist of the workpiece in terms of technical effect; especially when the angle of the workpiece needs to be changed during the processing, it can drive the workpiece to rotate to achieve multi-angle processing of the workpiece; further, the present application can also move the workpiece to facilitate the transmission of the processed workpiece.

[0041] Example 1:

[0042] Reference Figure 1 and Figure 2 As shown, it includes a support frame 1 and a conveying device 10 arranged on both sides of the support frame 1, and the conveying device 10 is used to convey the workpiece 11; the left and right inner walls of the support frame 1 are provided with lifting chutes 12, and a lifting support plate 13 for placing the workpiece 11 is slidingly arranged between the lifting chutes 12. The lifting support plate 13 is used to drive the workpiece 11 to move upward or downward, and change the height of the workpiece 11 when being processed. The lifting chute 12 is used to limit and guide the lifting support plate 13 to prevent the lifting support plate 13 from shifting during the movement.

[0043] A cross groove 14 is provided on the lifting support plate 13, and a bottom clamping unit 2 is provided in the cross groove 14, and the bottom clamping unit 2 is used to firmly clamp the bottom of the workpiece 11; a clamping groove 15 is provided at the front and rear ends of the support frame 1, and a U-shaped plate 16 is provided on the outer side of the clamping groove 15, and a waist clamping unit 3 is provided on the U-shaped plate 16, and the waist clamping unit 3 is used to firmly clamp the middle part of the workpiece 11; a material shifting unit 6 driven by the waist clamping unit 3 is provided on the support frame 1, and the material shifting unit 6 is used to shift the workpiece 11 from the conveying device 10 to the lifting support plate 13, and after the workpiece 11 is processed, the workpiece 11 is shifted to the conveying device 10 on the other side, so that the workpiece 11 can be processed subsequently.

[0044] The bottom clamping unit 2 includes a bottom clamping assembly 20 for clamping the bottom of the workpiece 11 and located at the upper end of the lifting support plate 13, and a bottom driving assembly 4 for driving the bottom clamping assembly 20. The bottom driving assembly 4 can drive the bottom clamping assembly 20 to be close to the bottom of the workpiece 11 and clamp it.

[0045] Reference Figure 3As shown, the bottom clamping assembly 20 is used to clamp the bottom of the workpiece 11; specifically, the bottom clamping assembly 20 includes a driven slider 201, a driven clamping block 202, an adjusting clamping rod 203, an arc-shaped clamping plate 204, an arc-shaped patch 205, a limiting circular plate 206 and a tightening tension spring 207. At least four driven sliders 201 distributed in a cross shape are slidably disposed in the cross groove 14. The cross groove 14 can serve as a limiting guide for the driven sliders 201. The lower end of the driven slider 201 passes through the cross slot 14 and is connected to the bottom drive assembly 4, which is used to provide driving force for the clamping assembly 31; the upper end of the driven slider 201 is provided with a driven clamping block 202, and a plurality of adjustment clamping rods 203 are slidably passed through the driven clamping block 202. The driven clamping block 202 can limit and guide the adjustment clamping rod 203, and an arc-shaped clamping plate 204 is provided at one end of the adjustment clamping rod 203 close to the middle of the cross slot 14.

[0046] The arc-shaped inner wall of the arc-shaped clamping plate 204 is provided with an arc-shaped patch 205 that fits the outer wall of the workpiece 11. In this embodiment, the arc-shaped patch 205 is made of soft material and can play a certain buffering role in the process of clamping the bottom of the workpiece 11 to prevent the surface of the workpiece 11 from being worn. The arc-shaped clamping plate 204 can support the arc-shaped patch 205 so that the arc-shaped patch 205 can be completely attached to the outer surface of the workpiece 11, thereby making the workpiece 11 more firmly clamped. A limiting circular plate 206 is provided at one end away from the middle of the cross groove 14. The limiting circular plate 206 can limit the adjusting clamping rod 203 to prevent the adjusting clamping rod 203 from separating from the driven clamping block 202. A tightening tension spring 207 connected to the corresponding limiting circular plate 206 and the driven clamping block 202 is provided on the outer surface of the adjusting clamping rod 203. The tightening tension spring 207 can provide a pulling force to the adjusting clamping rod 203 through the limiting circular plate 206, so that the adjusting clamping rod 203 can always move toward the center of the cross groove 14.

[0047] During the specific implementation process, when the workpiece 11 is placed on the lifting support plate 13, the four driven sliders 201 move together along the cross groove 14 toward the workpiece 11. During the movement, the driven slider 201 drives the adjusting clamping rod 203 to move through the driven clamping block 202, and the adjusting clamping rod 203 drives the arc clamping plate 204 to move, and the arc clamping plate 204 drives the arc patch 205 to stick to the outer side surface of the workpiece 11. In addition, the pulling force of the tension spring 207 applies pressure to the arc patch 205 through the limiting circular plate 206, the adjusting clamping rod 203 and the arc clamping plate 204, further increasing the strength of the arc patch 205 to clamp the workpiece 11.

[0048] Reference Figure 4As shown, the waist clamp unit 3 is used to clamp the waist of the workpiece 11; specifically, the waist clamp unit 3 includes a supporting rotating rod 30, a material shifting unit 6, an opening and closing assembly 5, an opening and closing rotating plate 301, a tightening rotating rod 302, a clamping assembly 31 and a servo motor 303. The supporting rotating rod 30 is rotatably arranged between the inner walls of the C-shaped plate 16. One end of the supporting rotating rod 30 passes through the corresponding C-shaped plate 16 and is connected to the material shifting unit 6. The material shifting unit 6 can shift the workpiece 11 on the conveying device 10 to the lifting support plate 13; the supporting rotating rod 30 can provide a driving force for the material shifting unit 6 when rotating; an opening and closing assembly 5 for driving it to rotate and adjust is provided between the supporting rotating rods 30, and the opening and closing assembly 5 is used to provide a driving force for the supporting rotating rod 30; an opening and closing rotating plate 301 is fixedly sleeved on the outer surface of the supporting rotating rod 30, and the supporting rotating rod 30 can drive the opening and closing rotating plate 301 to swing together when rotating.

[0049] The cam 302 is provided with a locking plate 303 for locking the workpiece 11 so that the locking plate 302 can be unlocked and locked.

[0050] When the workpiece 11 is to be clamped at its waist, the supporting rotating rods 30 at the front and rear ends of the U-shaped plate 16 will drive the opening and closing rotating plates 301 on their respective outer surfaces to swing toward one side of the workpiece 11. The opening and closing rotating plates 301 will drive the pressing rotating rod 302 to move during the swinging process, and the pressing rotating rod 302 will be pressed against the surface of the workpiece 11 through the clamping assembly 31. At this time, the clamping operation of the waist of the workpiece 11 is completed. In addition, the pressing rotating rod 302 can rotate the clamping assembly 31 under the drive of the servo motor 303, and the clamping assemblies 31 at the front and rear ends will drive the workpiece 11 to rotate. At this time, the workpiece 11 can be processed in various directions by changing the overall angle of the workpiece 11, and the various directions of the workpiece 11 can also be detected by external detection equipment through rotation, thereby improving the applicability of this application.

[0051] It should be noted that since only one end of the clamping rod 302 is driven by the servo motor 303, when the workpiece 11 is not clamped, the initial position of the clamping rod 302 at the other end may be inconsistent with the position of the clamping rod 302 with the servo motor 303, resulting in that during the process of clamping the workpiece 11, the clamping rod 302 at one end cannot drive the clamping assembly 31 to effectively clamp the workpiece 11. Therefore, a torsion spring 1 (not shown in the figure) is provided on the outer surface of the clamping rod 302 on one side that is not driven by the servo motor 303 to provide an initial torque to the clamping rod 302, so that the clamping rod 302 drives the clamping assembly 31 to always remain horizontal with the workpiece 11 when the workpiece 11 is not clamped.

[0052] Reference Figure 5 As shown, the clamping assembly 31 is used to adjust the tightness of the waist of the workpiece 11; specifically, the clamping assembly 31 includes a fixing hole 310, a linkage adjustment plate 311, an adjusting bolt 312, a sliding shaft 313, a limiting round block 314, a rectangular plate 315, a tightening strip 316, a reset compression spring 317, a tightening shaft 318 and a clamping branch chain 32, a plurality of fixing holes 310 are evenly opened along the extension surface of the tightening rotating rod 302, and a linkage adjustment plate 311 is slidably provided on the outer surface of the tightening rotating rod 302, and an adjusting bolt 312 is penetrated in the middle of the upper end of the linkage adjustment plate 311 by threaded engagement, and the adjusting bolt 312 is screwed in the middle of the upper end of the linkage adjustment plate 311. The lower end of 12 is located in a corresponding fixing hole 310, and the linkage adjustment plate 311 can slide on the outer surface of the tight rotating rod 302. The adjusting bolt 312 can pass through the linkage adjustment plate 311 and be threadedly connected to the fixing hole 310 on the tight rotating rod 302 to fix the linkage adjustment plate 311; sliding shafts 313 are symmetrically slidably penetrated on both sides of the linkage adjustment plate 311, and the linkage adjustment plate 311 can limit and guide the sliding shaft 313; a limiting round block 314 is provided on one end of the sliding shaft 313 close to the corresponding opening and closing rotating plate 301, and the limiting round block 314 can prevent the sliding shaft 313 from separating from the sliding shaft 313.

[0053] The two ends of the rectangular plate 315 are symmetrically slidably penetrated with a tightening strip 316 connected to the corresponding sliding shaft 313. The rectangular plate 315 can play a role of limiting, guiding and supporting the tightening strip 316, so that the tightening strip 316 can slide smoothly; a return compression spring 317 is provided on the outer surface of the sliding shaft 313. The return compression spring 317 is located between the corresponding rectangular plate 315 and the linkage adjustment plate 311. The return compression spring 317 can give the corresponding tightening strip 316 a tightening force, so that the tightening strip 316 can slide smoothly. The tightening strip 316 can be tightened in the direction of the workpiece 11; a tightening shaft 318 is rotatably arranged between the corresponding tightening strips 316, and two torsion springs are arranged at both ends of the tightening shaft 318. The fixed end of the torsion spring 2 is connected to the tightening strip 316, and the movable end in the middle of the torsion spring 2 is connected to the tightening shaft 318. A clamping branch chain 32 is arranged on the outer surface of the tightening shaft 318, and the torsion spring 2 (not shown in the figure) can give the tightening shaft 318 a torsion force, so that the tightening shaft 318 drives the clamping branch chain 32 to remain in the horizontal direction in the initial state.

[0054] When the workpiece 11 is in the working state, the adjusting screw 312 on the adjusting plate 311 is screwed down, so that the adjusting screw 312 on the adjusting plate 311 is no longer fixed on the tightening rotating rod 302 by the adjusting screw 312. The position of the two adjusting plates 311 on the tightening rotating rod 302 is slidably adjusted according to the diameter of the workpiece 11. When the adjusting plate 311 moves relative to the outside of the workpiece 11, the sliding shaft 313 is driven to move by the limiting round block 314. The sliding shaft 313 drives the tightening bar 316 to move during the movement. The rectangular plate 315 can limit and guide the tightening bar 316 during the movement of the tightening bar 316. The tightening bar 316 can drive the sliding shaft 313 to move during the movement, and the tightening rotating shaft 318 can drive the clamping branch chain 32 on its outer surface to move.

[0055] When the linkage adjustment plate 311 moves toward one side of the workpiece 11, the pressure of the reset compression spring 317 will push the tightening bar 316 to move. During the movement of the tightening bar 316, the sliding shaft 313 will be driven to move. At the same time, the tightening bar 316 will also drive the tightening rotating shaft 318 to move during the movement, and the tightening rotating shaft 318 will drive the clamping branch chain 32 on its outer surface to move.

[0056] In addition, since the diameters of different workpieces 11 may be inconsistent, when the clamping support chain 32 clamps the workpiece 11 tightly, its clamping surface may not be perpendicular to the outer surface of the workpiece 11. During clamping, the clamping surface cannot be evenly pressed against the surface of the workpiece 11, resulting in unstable clamping. Therefore, a second torsion spring (not shown in the figure) is provided at both ends of the clamping shaft 318 to give torque to the clamping shaft 318, so that the clamping shaft 318 drives the clamping support chain 32 to be horizontal with the workpiece 11, thereby enabling the clamping assembly 31 to be completely pressed against the outer surface of the workpiece 11; when the workpiece 11 is no longer clamped, the second torsion spring can also use torque to make the clamping shaft 318 drive the clamping support chain 32 to remain in the initial position, so that the next round of clamping operation can be carried out effectively.

[0057] Continue to refer to Figure 5 As shown, the clamping support chain 32 is used to tightly clamp the waist of the workpiece 11; specifically, the clamping support chain 32 includes a clamping sleeve 320, an adjusting rod 321, a clamping plate 322, a connecting rod 323, a side connecting block 324, a clamping side rod 325, a side clamping block 326 and a rubber sheet 327. The clamping sleeve 320 is sleeved on the outer surface of the tightening shaft 318. A plurality of adjusting rods 321 are evenly penetrated on the clamping sleeve 320 by sliding fit. The clamping sleeve 320 can limit the adjusting rod 321, and the tightening shaft 318 drives the adjusting rod 321 to rotate through the clamping sleeve 320. Swing up and down; a clamping plate 322 is provided between the upper and lower corresponding adjusting rods 321 to clamp the front and rear ends of the workpiece 11; plug-in slots are evenly opened on the upper adjusting rod 321, and a plug-in rod 323 located in the corresponding plug-in slot is slidably inserted on the clamping sleeve 320 in a detachable manner. The plug-in rod 323 can fix the adjusting rod 321 on the clamping sleeve 320 through the plug-in slot. In addition, the plug-in rod 323 can be pulled out from the plug-in slot according to the size of the diameter of the workpiece 11, and the sliding adjusting rod 321 changes the distance between the clamping plates 322 to adapt to the diameters of workpieces 11 of different sizes.

[0058] When the cam 324 is in the unlock state, the locking cam 325 is locked and the locking cam 326 is locked, so that the cam 326 can be locked to the unlocked state.

[0059] Example 2:

[0060] Reference Figure 6 and Figure 7 As shown, on the basis of Example 1, the bottom clamping unit 2 and the waist clamping unit 3 need to provide a certain driving force to operate normally during the process of clamping the workpiece 11, so a bottom drive assembly 4 is provided to provide driving force for the bottom clamping assembly 20; specifically, the bottom drive assembly 4 includes a limit support block 40, a double-sided gear ring 41, a gear groove 42, a driven gear 43, a rotating motor 44, a driving gear 45, a transmission rack 46, a T-shaped block 47, a field frame 48 and a lifting cylinder 49, and a plurality of limit support blocks 40 distributed in a ring are evenly arranged at the lower end of the lifting support plate 13, and a double-sided gear ring 41 is rotatably arranged between the limit support blocks 40, and the limit support blocks 40 can limit and guide the double-sided gear ring 41.

[0061] Gear grooves 42 corresponding to the cross grooves 14 are evenly opened at the lower end of the lifting support plate 13. A driven gear 43 is rotatably arranged in the gear groove 42, and the driven gear 43 is meshed with the inner side of the bilateral gear ring 41. When the bilateral gear ring 41 rotates, it can drive the driven gear 43 to rotate; a rotating motor 44 is provided below the lifting support plate 13 through the motor seat, and a driving gear 45 meshing with the outer side of the bilateral gear ring 41 is provided on the outer side of the output shaft of the rotating motor 44. The rotating motor 44 can drive the driving gear 45 to rotate, and when the driving gear 45 rotates, it drives the bilateral gear ring 41 to rotate.

[0062] The lower ends of the driven sliders 201 all pass through the cross-shaped through slots 14 and are provided with transmission racks 46 meshing with the corresponding driven gears 43. When the double-sided toothed ring 41 rotates, it will drive the four driven gears 43 meshing with its inner teeth to rotate. At this time, the four driven gears 43 rotate in the same direction. When the driven gear 43 rotates, it will drive the transmission gear meshing with it to move in the direction towards or away from the center of the cross-shaped through slot 14. During the movement of the transmission rack 46, it can drive the bottom clamping assembly 20 above to move, so as to provide driving force for the bottom clamping assembly 20.

[0063] A T-shaped block 47 connected to the lifting support plate 13 is slidably penetrated through the middle of the transmission rack 46. The T-shaped block 47 can limit and guide the transmission rack 46; a cross-shaped frame 48 is provided at the lower end of the lifting support plate 13, and a lifting cylinder 49 connected to the support frame 1 is provided at the lower middle of the cross-shaped frame 48. The lifting cylinder 49 can push the lifting support plate 13 to rise or fall through the cross-shaped frame 48, so as to change the height of the workpiece 11 during processing. The cross-shaped frame 48 can support the entire lifting support plate 13, so that the driving force of the lifting cylinder 49 can be evenly transmitted to the lifting support plate 13.

[0064] In the specific implementation process, when the waist clamping unit 3 drives the workpiece 11 to rotate, in order not to interfere with the rotation path of the workpiece 11, it is necessary to drive the lifting support plate 13 to descend as a whole through the lifting cylinder 49. When the workpiece 11 needs to fall back onto the lifting support plate 13, the waist clamping unit 3 rotates the workpiece 11 to a ninety-degree angle with the upper end surface of the lifting support plate 13. The lifting cylinder 49 drives the lifting support plate 13 to rise until it contacts the bottom of the workpiece 11, and the bottom clamping assembly 20 clamps the bottom of the workpiece 11. At this time, the waist clamping unit 3 can release the clamping of the workpiece 11.

[0065] Refer to Figure 8 As shown, it is the opening and closing assembly 5 used to drive the waist clamping unit 3 to clamp the workpiece 11; specifically, the opening and closing assembly 5 includes an adjusting gear 50, a Z-shaped rack 51, a U-shaped limiting frame 52 and a driving motor 53. The adjusting gears 50 are symmetrically arranged on both sides of the outer side surface of the support rotating rod 30. The rotation of the support rotating rod 30 can drive the adjusting gear 50 to rotate; a Z-shaped rack 51 is arranged between the lower sides of the adjusting gears 50 on both sides of the support frame 1 in a meshing manner. When the adjusting gear 50 rotates, it can drive the adjusting gear 50 meshing with it to move back and forth. U-shaped limiting frames 52 are arranged on the outer side surfaces of both ends of the Z-shaped rack 51 and are slidably connected to it. The U-shaped limiting frames 52 can play a role in limiting and guiding the Z-shaped rack 51.

[0066] The other end of one of the supporting rotating rods 30 passes through the corresponding U-shaped plate 16 and is provided with a driving motor 53. The driving motor 53 can drive the supporting rotating rod 30 to rotate. When the supporting rotating rod 30 rotates, it drives the adjusting gear 50 to rotate. When the adjusting gear 50 rotates, it drives the Z-shaped rack 51 engaged with it to move in the front and back directions. When the Z-shaped rack 51 moves, it can drive the adjusting gear 50 at the other end to rotate. When the adjusting gear 50 at the other end rotates, it can drive the waist clip unit 3 to swing through the supporting rotating rod 30; the driving motor 53 is connected to the support frame 1 through the motor base.

[0067] It should be noted that, during the transmission process, the teeth at one end of the Z-shaped rack 51 mesh with the bottom of the front-end adjusting gear 50, and the teeth at the other end mesh with the top of the rear-end adjusting gear 50. In this way, whether the Z-shaped rack 51 moves toward the front or rear, the rotation directions of the two adjusting gears 50 meshed with it are opposite. Therefore, the waist clamp units 3 symmetrically distributed at the front and rear ends can be relatively clamped or loosened.

[0068] Example 3:

[0069] Reference Figure 9 As shown, on the basis of Example 1 and Example 2, the workpiece 11 waiting for processing on the conveying device 10 is moved to the lifting pallet 13, and the workpiece 11 processed on the lifting pallet 13 is moved to the material digging unit 6 on the conveying device 10 on the other side; the specific material digging unit 6 includes a linkage shaft 1 60, a linkage shaft 2 601, a pulley 1 602, a transmission belt 1 603, an L-shaped support plate 604, a support side plate 605, a linkage shaft 3 606, a pulley 2 607, a transmission belt 2 608, a linkage gear 1 609, a linkage gear ring 610, a gear shaft 1 611, a linkage gear 2 612, a gear shaft 2 613, a rectangular block 614, a material digging shaft 615, a material digging arc plate 616 and a material digging assembly 62, and the linkage shaft 1 60 is installed at one end of the supporting rotating rod 30, and the rotation of the supporting rotating rod 30 will drive the linkage shaft 1 60 to rotate synchronously.

[0070] A linkage shaft 2 601 is rotatably provided at the upper end of the U-shaped plate 16, and a pulley 1 602 is provided on the outer sides of the linkage shaft 2 601 and the linkage shaft 1 60, and a transmission belt 1 603 is provided between the pulley 1 602. When the supporting rotating rod 30 drives the linkage shaft 1 60 connected thereto to rotate, the linkage shaft 1 60 drives the linkage shaft 2 601 to rotate in the same direction through the pulley 1 602 and the transmission belt 1 603; an L-shaped support plate 604 is symmetrically provided on one side of the upper end of the support frame 1, and a supporting side plate 605 is provided on the right end of the L-shaped support plate 604, and a linkage shaft 3 606 is rotatably provided in the middle of the supporting side plate 605, and the supporting side plate 605 can play the role of limiting support for the linkage shaft 3 606.

[0071] The linkage shaft 2 601 and the linkage shaft 3 606 are both fixedly sleeved with pulley 2 607, and a transmission belt 2 608 is arranged between the corresponding pulleys 2 607. When the linkage shaft 2 601 rotates, the linkage shaft 3 606 is driven to rotate in the same direction through the pulley 2 607 and the transmission belt 2 608; the linkage shaft 3 606 is sleeved with a linkage gear 1 609, and the linkage shaft 3 606 can drive the linkage gear 1 609 to rotate; the outer surface of the linkage gear 1 609 is provided with a linkage gear ring 606 meshing with it. 10. When the linkage gear 1 609 rotates, it can drive the meshing linkage gear ring 610 to rotate in the opposite direction; the middle part of the linkage gear ring 610 is provided with a gear shaft 1 611 connected to the L-shaped support plate 604, and the outer surface of the linkage gear ring 610 is provided with a linkage gear 2 612 meshed with it. When the linkage gear ring 610 rotates, it can drive the meshing linkage gear 2 612 to rotate in the opposite direction. At this time, the rotation direction of the linkage gear 2 612 is consistent with the rotation direction of the linkage gear 1 609.

[0072] The middle part of the linkage gear 2 612 is provided with a gear shaft 2 613 rotatably connected to the L-shaped support plate 604. The heights of the front and rear gear shafts 2 613 are inconsistent. Rectangular blocks 614 are symmetrically provided on the left and right ends of the support frame 1. A material-dipping rotating shaft 615 is rotatably provided between the corresponding two rectangular blocks 614, and the rectangular block 614 can limit and guide the material-dipping rotating shaft 615; a material-dipping arc plate 616 is provided on the material-dipping rotating shaft 615, and the inclined surfaces of the two material-dipping arc plates 616 are arranged from top to bottom toward the middle of the support frame 1, and a material-dipping assembly 62 is provided at the upper end of the gear shaft 2 613. The material-dipping assembly 62 can push the workpiece 11 on the conveying device 10 to slide along the outer side surface of the material-dipping arc plate 616 to the lifting support plate 13. After the workpiece 11 is processed, the workpiece 11 is pushed to slide along the outer side surface of the material-dipping arc plate 616 to the conveying device 10 on the other side.

[0073] During the specific implementation process, when the conveying device 10 conveys the workpiece 11 to one end of the support frame 1, the conveying device 10 no longer drives the workpiece 11 to move. At this time, the waist clamp unit 3 is tilted as a whole toward the outside of the support frame 1, and the supporting rotating rod 30 will drive the material-diverting arc plate 616 to swing toward one side of the conveying device 10. During the swinging process, the material-diverting component 62 contacts the workpiece 11 and pushes it, so that the workpiece 11 slides onto the lifting support plate 13 through the material-diverting arc plate 616. The waist clamp unit 3 swings as a whole toward the direction of the support frame 1 at a certain angle, and the material-diverting component 62 can swing back to the initial position. When the workpiece 11 is processed, the above process is repeated, and the swing amplitude of the waist clamp unit 3 increases, so that the material-diverting component 62 can push the workpiece 11 to the conveying device 10 on the other side.

[0074] It should be noted that the heights of the front and rear gear shafts 613 are inconsistent, which leads to inconsistent heights of the material-pickup assembly 62 at its end. In this way, the upper and lower ends of the workpiece 11 can be pushed at the same time, making it more stable when sliding. The material-pickup arc plate 616 is tightly attached to the lifting support plate 13. Therefore, the workpiece 11 can slide smoothly onto the lifting support plate 13. In addition, since one end of the material-pickup arc plate 616 is connected to the material-pickup rotating shaft 615, when the bottom clamping assembly 20 clamps the workpiece 11, the clamping assembly 31 will push up the material-pickup arc plate 616 without interference. Since the material-pickup arc plate 616 is tightly attached to the surface of the lifting support plate 13, when the lifting support plate 13 moves up and down, the material-pickup arc plate 616 can also swing up and down.

[0075] Continue to refer to Figure 9 As shown, that is; a material-prying assembly 62 is used to push the workpiece 11 to move. Specifically, the material-prying assembly 62 includes a material-prying rod 620 and a material-prying plate 621. The material-prying rod 620 is fixedly sleeved on the outer side surface of the upper end of the gear shaft 613. When the gear shaft 613 rotates, it can drive the material-prying rod 620 to swing. The end of the material-prying rod 620 away from the corresponding gear shaft 613 is rotated and a material-prying plate 621 is provided. When the material-prying rod 620 swings, it can drive the material-prying plate 621 to swing together. The material-prying plate 621 is used to contact and push the workpiece 11, and its curved surface can better fit the outer surface of the workpiece 11; and a torsion spring four is also provided between the material-prying plate 621 and the material-prying rod 620. The torsion spring four gives the material-prying plate 621 a torsion force, so that the material-prying plate 621 can always be tightly attached to the outer side surface of the workpiece 11 when pushing the workpiece 11.

[0076] During operation: Step 1: Move the workpiece 11 on the conveying device 10 to the lifting support plate 13 through the material shifting unit 6, start the bottom clamping unit 2 to firmly clamp the bottom of the workpiece 11, and then adjust the height of the lifting support plate 13 through the bottom drive component 4 according to actual processing requirements, so as to adjust the height of the workpiece 11 in the support frame 1.

[0077] Step 2: When it is necessary to detect different angles of the workpiece 11, the waist of the workpiece 11 can be clamped by the waist clamp unit 3. After the waist clamp unit 3 completes the clamping, the bottom clamp unit 2 can be released, and the bottom drive assembly 4 drives the lifting plate 13 to descend. After that, the workpiece 11 is rotated by the waist clamp unit 3, and different angles of the workpiece 11 can be detected.

[0078] Step 3: When the workpiece 11 is processed, the lifting plate 13 returns to its initial height, the bottom clamping unit 2 and the waist clamping unit 3 stop clamping the workpiece 11, and the workpiece 11 is moved to the conveying device 10 on the other side through the material shifting unit 6.

[0079] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0080] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A fixture clamping mechanism, comprising a support frame and a conveying device disposed on both sides of the support frame, characterized in that: The left and right inner walls of the support frame are both provided with lifting chutes, a lifting support plate for placing workpieces is slidably provided between the lifting chutes, a cross groove is provided on the lifting support plate, a bottom clamping unit is provided in the cross groove, a clamping groove is provided at the front and rear ends of the support frame, a U-shaped plate is provided on the outer side of the clamping groove, a waist clamping unit is provided on the U-shaped plate, and a material picking unit driven by the waist clamping unit is provided on the support frame; The bottom clamping unit includes a bottom clamping assembly for clamping the bottom of the workpiece and located at the upper end of the lifting support plate, and a bottom driving assembly for driving the bottom clamping assembly; The waist clamp unit includes a supporting rotating rod, a material shifting unit, an opening and closing assembly, an opening and closing rotating plate, a tightening rotating rod, a clamping assembly and a servo motor. The supporting rotating rod is rotatably arranged between the inner walls of the U-shaped plates. One end of the supporting rotating rod passes through the corresponding U-shaped plate and is connected to the material shifting unit. An opening and closing assembly is arranged between the supporting rotating rods for driving them to rotate and adjust. The opening and closing rotating plate is fixedly sleeved on the outer surface of the supporting rotating rod. A tightening rotating rod is rotatably passed through the upper end of the opening and closing rotating plate, and a clamping assembly is provided on the opposite side of the tightening rotating rod. The opposite side of one of the tightening rotating rods passes through the corresponding opening and closing rotating plate and is provided with a servo motor. The servo motor is connected to the corresponding opening and closing rotating plate through a motor seat, and a torsion spring is provided between the other tightening rotating rod and the corresponding opening and closing rotating plate.

2. A fixture clamping mechanism according to claim 1, characterized in that: The bottom clamping assembly includes a driven slider, a bottom drive assembly, a driven clamping block, an adjustment clamping rod, an arc-shaped clamping plate, an arc-shaped patch, a limit circular plate and a tension spring. At least four driven sliders distributed in a cross shape are slidably arranged in the cross slot, and the lower end of the driven slider passes through the cross slot and is connected to the bottom drive assembly. The upper end of each driven slider is provided with a driven clamping block; A plurality of adjusting clamping rods are slidably provided on the driven clamping block, and an arc-shaped clamping plate is provided at one end of the adjusting clamping rod close to the middle of the cross groove, and an arc-shaped patch that fits the outer wall of the workpiece is provided on the arc-shaped inner wall of the arc-shaped clamping plate, and a limiting circular plate is provided at one end of the adjusting clamping rod away from the middle of the cross groove, and a tightening tension spring connected to the corresponding limiting circular plate and the driven clamping block is provided on the outer surface of the adjusting clamping rod.

3. The fixture clamping mechanism according to claim 1, characterized in that: The bottom drive assembly includes a limit support block, a double-sided gear ring, a gear groove, a driven gear, a rotating motor, a driving gear, a transmission rack, a T-shaped block, a field frame and a lifting cylinder. A plurality of limit support blocks distributed in an annular shape are evenly arranged at the lower end of the lifting support plate. A double-sided gear ring is rotatably arranged between the limit support blocks. Gear grooves corresponding to the cross grooves are evenly opened at the lower end of the lifting support plate. A driven gear is rotatably arranged in the gear groove, and the driven gear is meshed with the inner side of the double-sided gear ring. A rotating motor is provided below the lifting support plate through a motor seat. A driving gear meshing with the outer side of the bilateral gear ring is provided on the outer side surface of the output shaft of the rotating motor, the lower ends of the driven sliders pass through the cross slots and are provided with transmission racks meshing with the corresponding driven gears, a T-shaped block connected to the lifting support plate is slid through the middle part of the transmission rack, a field frame is provided at the lower end of the lifting support plate, and a lifting cylinder connected to the support frame is provided at the lower end of the middle part of the field frame.

4. The fixture clamping mechanism according to claim 1, characterized in that: The described opening and closing component includes an adjusting gear, a Z-shaped rack, a U-shaped limiting frame, and a driving motor. The adjusting gears are symmetrically arranged on both sides of the outer surface of the supporting rotating rod. A Z-shaped rack is arranged between the lower sides of the adjusting gears located on both sides of the supporting frame in a meshing manner. U-shaped limiting frames are arranged on the outer surfaces of both ends of the Z-shaped rack and are slidably connected thereto. The other end of one of the supporting rotating rods passes through the corresponding U-shaped plate and is provided with a driving motor, and the driving motor is connected to the supporting frame through a motor base.

5. The fixture clamping mechanism according to claim 1, characterized in that: The described clamping component includes fixing holes, a linkage adjusting plate, an adjusting bolt, a sliding shaft, a limiting round block, a rectangular plate, a pressing strip, a reset compression spring, a pressing rotating shaft, and a clamping chain. A number of the fixing holes are evenly opened along the extending surface of the pressing rotating rod. A linkage adjusting plate is slidably arranged on the outer surface of the pressing rotating rod, and an adjusting bolt is passed through the middle of the upper end of the linkage adjusting plate by means of threaded cooperation; The lower end of the adjusting bolt is located in a corresponding fixing hole. Sliding shafts are symmetrically and slidably passed through both sides of the linkage adjusting plate. Limiting round blocks are arranged at one ends of the sliding shafts close to the corresponding opening and closing rotating plates. Rectangular plates are arranged on the opposite sides of the supporting rotating rod. Pressing strips connected to the corresponding sliding shafts are symmetrically and slidably passed through both ends of the rectangular plate. A reset compression spring is arranged on the outer surface of the sliding shaft, and the reset compression spring is located between the corresponding rectangular plate and the linkage adjusting plate; A pressing rotating shaft is rotatably arranged between the corresponding pressing strips. Two torsion springs are arranged at both ends of the pressing rotating shaft. The fixed ends of the two torsion springs are connected to the pressing strips, and the movable ends in the middle of the two torsion springs are connected to the pressing rotating shaft. A clamping chain is arranged on the outer surface of the pressing rotating shaft.

6. The fixture clamping mechanism according to claim 5, characterized in that: The described clamping chain includes a clamping sleeve, an adjusting rod, a clamping sticker, a plugging rod, a side connecting block, a clamping side rod, a side clamping block, and a rubber sheet. The clamping sleeve is sleeved on the outer surface of the pressing rotating shaft. A plurality of adjusting rods are evenly passed through the clamping sleeve by means of sliding fit. A clamping sticker is arranged between the upper and lower corresponding adjusting rods. Plugging grooves are evenly opened on the upper-side adjusting rods; The clamping sleeve is slidably inserted with a plugging rod located in the corresponding plugging groove in a detachable manner. Both ends of the pressing rotating shaft pass through the corresponding pressing strips and are provided with side connecting blocks. A clamping side rod is rotatably passed through the side connecting block, and a torsion spring three is arranged between the clamping side rod and the corresponding side connecting block. Upper and lower symmetric side clamping blocks are fixedly sleeved on the outer surface of the clamping side rod. Rubber sheets are arranged on both the side clamping block and the clamping sticker.

7. The fixture clamping mechanism according to claim 1, characterized in that: The described material pushing unit includes a linkage shaft one, a linkage shaft two, a pulley one, a transmission belt one, an L-shaped supporting plate, a supporting side plate, a linkage shaft three, a pulley two, a transmission belt two, a linkage gear one, a linkage gear ring, a gear shaft one, a linkage gear two, a gear shaft two, a rectangular block, a material pushing rotating shaft, a material pushing arc plate, and a material pushing component. The linkage shaft one is installed at one end of the supporting rotating rod. The linkage shaft two is rotatably arranged at the upper end of the U-shaped plate. Pulleys one are arranged on the outer surfaces of both the linkage shaft two and the linkage shaft one; A transmission belt 1 is provided between the pulleys 1, an L-shaped support plate is symmetrically provided on one side of the upper end of the support frame, a support side plate is provided on the right end of the L-shaped support plate, a linkage shaft 3 is rotatably provided in the middle of the support side plate, and a pulley 2 is fixedly sleeved on the linkage shaft 2 and the linkage shaft 3, and a transmission belt 2 is provided between the corresponding pulleys 2, a linkage gear 1 is sleeved on the linkage shaft 3, and a linkage gear ring meshing with the linkage gear 1 is provided on the outer side surface of the linkage gear ring, and a gear shaft 1 connected to the L-shaped support plate is provided in the middle of the linkage gear ring, and a linkage gear 2 meshing with the linkage gear ring is provided on the outer side surface of the linkage gear ring; A gear shaft 2 is provided in the middle of the linkage gear 2, which is rotatably connected to the L-shaped support plate. The heights of the front and rear gear shafts 2 are inconsistent. Rectangular blocks are symmetrically provided on the left and right ends of the support frame. A material-diverting rotating shaft is rotatably provided between the corresponding two rectangular blocks. A material-diverting arc plate is provided on the material-diverting rotating shaft. The inclined surfaces of the two material-diverting arc plates are arranged from top to bottom toward the middle of the support frame. A material-diverting assembly is provided at the upper end of the gear shaft 2.

8. The fixture clamping mechanism according to claim 7, characterized in that: The material shifting assembly includes a material shifting rod and a material shifting plate. The material shifting rod is fixedly sleeved on the outer surface of the upper end of the gear shaft 2. The material shifting plate is rotatably provided at the end of the material shifting rod away from the corresponding gear shaft 2, and a torsion spring 4 is also provided between the material shifting plate and the material shifting rod.

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