Workpiece fixing device for indexing plate of notching press

Abstract

The invention relates to the technical field of machining equipment, in particular to a notching press index plate workpiece fixing device which comprises a telescopic component, an index cylinder, a telescopic rod, a locking component, a rotating cylinder, an abutting disc, a centering block, a center rod, a downward pressing block, a downward pressing component, a centering component, a reset component and a rotating component. When a workpiece needs to be positioned, the telescopic rod stretches out, under the cooperation of the rotating component and the centering component, the centering block is used for opening and positioning the center of the workpiece, the centering block can be used for positioning the workpieces of different models, and after positioning is completed, the lower pressing block is used for longitudinally clamping the workpiece under the action of the lower pressing component; and after the workpiece is notched, the telescopic rod is controlled to move downwards, clamping of the workpiece can be canceled under the action of the reset component, the workpiece is convenient to position, and meanwhile the positioning precision of the workpiece is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing equipment, in particular to a workpiece fixing device for a dividing plate of a notching machine. Background Art

[0002] The slotting machine is a special single-slot punching equipment used to punch slots for motor rotor or stator iron core sheets. The die for punching motor rotor or stator iron core sheets is installed between the punch and the workbench. The punch drives the upper die to move up and down through the up and down reciprocating motion of the punch. The iron core sheets that need to be slotted are installed on a dividing device with intermittent motion, and the dividing device is used to make the iron core sheets rotate according to the preset requirements. When the punch moves downward, the iron core sheet does not rotate and waits for the slotting. When the punch moves upward, the iron core sheet rotates and indexes. After one week of indexing motion, the slotting process of a piece of iron core sheet can be completed. For example, the patent number.

[0003] In the prior art, in order to facilitate the installation and fixation of the iron core piece in the center of the dividing device, a positioning column is generally provided in the center of the dividing device. When the iron core piece needs to be fixed on the dividing device, the central through hole of the iron core piece is aligned with the positioning column and is sleeved on the positioning column. The iron core piece is then fitted with the dividing device by a clamping device so that the iron core piece can be driven to rotate synchronously when the dividing device rotates. For example, the automatic notching machine with patent number CN104084473B adopts a fixed workbench, a movable body, and a fixed workbench to facilitate the robot to accurately position the loading and unloading of the iron core piece.

[0004] Although the setting of the positioning column in the center of the dividing device in the prior art has accelerated the loading and positioning speed of the iron chip to a certain extent, in order to smoothly mount the iron chip on the outside of the positioning column and achieve accurate positioning, the outer diameter of the positioning column is generally set to be slightly smaller than the inner diameter of the center through hole of the iron chip. If the outer diameter of the positioning column is too small, the iron chip and the center of the dividing device will be offset, affecting the processing accuracy. If the outer diameter of the positioning column is too large, the inner wall of the through hole of the iron chip will easily rub against the outer side of the positioning column, making the installation of the iron chip difficult and affecting the positioning efficiency. The thickness of the iron chip is generally 0.2-0.3mm. During installation and positioning, it is also easy to collide with the positioning column, causing deformation or damage to the inner wall of the center through hole of the iron chip. Therefore, when punching the iron chip, a positioning column of a suitable size needs to be selected to position the iron chip. When iron cores with different center through hole sizes need to be processed, different positioning columns need to be replaced, affecting production efficiency.

[0005] Therefore, a workpiece fixing device for a notching machine indexing plate is proposed. Summary of the invention

[0006] The object of the present invention is to provide a workpiece fixing device for a notching machine indexing plate, in view of the fact that when an iron core piece in the prior art is fixed on a indexing device, the positioning speed or positioning accuracy of the iron core piece is easily affected due to the selection of positioning columns.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A workpiece fixing device for a notching machine indexing plate, the notching machine comprises a indexing plate and a tray, the tray is fixed on the indexing plate, comprises a telescopic component, a indexing cylinder, a telescopic rod, a locking component, a rotating cylinder, an abutment plate, a centering block, a center rod, a pressing block, a pressing component, a centering component, a resetting component and a rotating component, the indexing cylinder is arranged on the indexing plate, the telescopic rod and the abutment plate are slidably connected to the indexing plate in sequence, and the sliding direction is up and down, an elastic component is arranged between the abutment plate and the telescopic rod, the center rod is fixed to the center of the abutment plate, the rotating cylinder is rotatably connected in the abutment plate, and a fitting plate is arranged on the abutment plate, The center rod is fixed on the fitting disk, the centering block is arranged in the center rod, the pressing block is arranged on the centering block, the telescopic component is arranged at the bottom of the telescopic rod, and is used to control the telescopic rod to move up and down, the rotating component is arranged in the telescopic rod, and when the abutment disk and the telescopic rod are relatively close, it drives the rotating cylinder to rotate, and makes the centering block extend to center and clamp the workpiece, the pressing component is arranged in the center rod, and after the workpiece is center-clamped, it drives the pressing block to press the workpiece down and fit it to the abutment disk, and the reset component is arranged below the pressing block, and when the abutment disk and the telescopic rod are relatively far away, it drives the pressing block and the centering block to release the workpiece in turn.

[0009] Preferably, the telescopic component includes a hydraulic cylinder and a connecting plate, the hydraulic cylinder is fixed to the bottom of the dividing plate, the connecting plate is fixed to the hydraulic rod of the hydraulic cylinder, the connecting plate is rotatably connected to the bottom of the telescopic rod, and the upper end of the abutment plate cooperates with the bottom of the pallet.

[0010] Preferably, a lubricating member is provided at the upper end of the abutment plate, and the bottom of the tray cooperates with the lubricating member.

[0011] Preferably, the rotating component includes a rotating disk, a rotating groove and a rotating column. The rotating disk is rotatably connected to the top of the rotating cylinder in the abutment disk. The rotating disk is fixedly connected to the rotating cylinder. The rotating column is arranged in the rotating cylinder. The rotating groove is opened on the outer side of the upper end of the telescopic rod, and the rotating column cooperates with the rotating groove.

[0012] Preferably, the centering component includes a centering groove, a centering column, a trigger groove, a trigger block, a trigger baffle and a trigger spring, the centering groove is arranged on the rotating disk, the centering block is radially slidably connected in the bonding disk, the centering column is fixed at the lower end of the centering block, the centering column cooperates with the centering groove, the trigger groove is arranged in the centering block, the trigger block is slidably connected in the trigger groove, the trigger baffle is arranged on the trigger block, the two ends of the trigger spring are respectively abutted against one end of the trigger baffle close to the center of the bonding disk and the inner wall of the bonding disk, and the end of the trigger block away from the center of the bonding disk cooperates with the workpiece.

[0013] Preferably, the pressing component includes a pressing spring, a pressing groove, a pressing column and a pressing hole, the pressing groove is provided in the center rod, the pressing block is slidably connected with the pressing groove, the pressing spring is arranged at the upper end of the pressing block, the pressing column is fixed at the lower end of the pressing block, the pressing column passes through the centering block and is slidably connected with the central inner wall of the rotating column, the pressing hole is provided on the trigger block, the pressing column cooperates with the pressing hole, and the pressing block cooperates with the workpiece at one end away from the center of the center rod.

[0014] Preferably, the locking component includes a locking plate, a locking block, a locking groove, a locking chamfer, a disengagement baffle, a frosting block, a locking spring and a disengagement block, the locking groove is opened in the rotating cylinder, the locking plate is arranged between the rotating plate and the rotating cylinder, the locking block is fixed at the lower end of the locking plate, the locking block is slidably connected to the locking groove, the locking chamfer is arranged at the lower end of the locking block, the disengagement block is radially slidably connected in the rotating cylinder, the disengagement baffle is arranged at the upper end of the disengagement block, the frosting block is arranged on the side of the disengagement block away from the center of the rotating cylinder, the two ends of the locking spring are respectively connected to the end of the disengagement block away from the center of the rotating cylinder and the inner wall of the rotating cylinder, the upper end of the locking plate cooperates with the lower end of the lower pressure column, the locking chamfer cooperates with the disengagement baffle, and the frosting block cooperates with the abutment plate.

[0015] Preferably, one end of the disengagement block close to the center of the rotating disk is connected to the rotating column.

[0016] Preferably, the reset component includes a reset groove, a reset ring, a reset rack, a reset gear and an avoidance unit, the reset groove is opened in the center rod, the reset ring is slidably connected in the reset groove, the reset rack is fixed to the lower end of the reset ring, the reset gear is rotatably connected, the reset gear is rotatably connected to the inner wall of the abutment plate, the reset gear is meshed with the reset rack, the upper end of the reset ring cooperates with the lower end of the lower pressure block, and the avoidance unit is arranged in the telescopic rod.

[0017] Preferably, the avoidance unit includes an avoidance groove, an avoidance spring, an avoidance block, an avoidance tooth and an avoidance chamfer, the avoidance groove is arranged in the telescopic rod, the avoidance block is slidably connected in the avoidance groove, the avoidance tooth is fixed on the avoidance block, the avoidance chamfer is arranged at the upper end of the avoidance tooth away from the avoidance block, the avoidance tooth cooperates with the side of the reset gear away from the reset rack, the avoidance chamfer cooperates with the side of the reset gear away from the reset rack, and the two ends of the avoidance spring are respectively connected with the end of the avoidance block away from the avoidance tooth and the inner wall of the telescopic rod.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present application sets a telescopic rod in the indexing machine so that when the workpiece needs to be positioned, the telescopic rod is extended, and with the cooperation of the rotating component and the centering component, the centering block is stretched and positioned on the center of the workpiece, so that the centering block can position workpieces of different types, and after positioning, under the action of the pressing component, the pressing block clamps the workpiece longitudinally, so that the workpiece is more stable when rotating. After the workpiece is notched, it is only necessary to control the telescopic rod to move downward, and the workpiece can be unclamped under the action of the resetting component, so that the positioning of the workpiece is convenient while ensuring the positioning accuracy of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0022] Figure 3 It is a schematic structural diagram of a state in which the abutment plate and the tray of the present invention are separated;

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the rotating component of the present invention;

[0024] Figure 5 For the present invention Figure 4 The enlarged structural diagram at E in the middle;

[0025] Figure 6 It is a schematic diagram of the explosion structure of the pressing block, the centering block and the rotating cylinder of the present invention;

[0026] Figure 7 It is a schematic diagram of the cross-sectional structure of the reset component of the present invention;

[0027] Figure 8 For the present invention Figure 7 The enlarged structural diagram at F in the middle;

[0028] Fig. 9 It is a schematic diagram of the cross-sectional structure of the rotating column of the present invention;

[0029] Fig.10 For the present invention Fig. 9 Enlarged structural diagram at G in the middle.

[0030] In the figure: A, notching machine; B, indexing plate; C, tray; D, workpiece; 1, telescopic component; 2, indexing cylinder; 3, telescopic rod; 31, elastic member; 4, locking component; 5, rotating cylinder; 6, abutting plate; 61, laminating plate; 7, centering block; 8, center rod; 9, pressing block; 101, pressing component; 102, centering component; 103, resetting component; 104, rotating component; 11, hydraulic cylinder; 12, connecting plate; 1041, rotating plate; 1042, rotating groove; 1043, rotating column; 1022, centering groove; 1023, centering column; 1024, triggering groove; 1025, triggering block; 1026 , trigger baffle; 1027, trigger spring; 1011, pressing spring; 1012, pressing groove; 1013, pressing column; 1014, pressing hole; 41, locking plate; 42, locking block; 43, locking groove; 44, locking chamfer; 45, disengagement baffle; 46, frosting block; 47, locking spring; 48, disengagement block; 1031, reset groove; 1032, reset ring; 1033, reset rack; 1034, reset gear; 1035, avoidance unit; 10351, avoidance groove; 10352, avoidance spring; 10353, avoidance block; 10354, avoidance tooth; 10355, avoidance chamfer. DETAILED DESCRIPTION

[0031] In order to make the technical solutions in the embodiments of the present invention clearly and completely described, and the features and advantages can be more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] Example 1

[0033] See also Figures 1 to 5The present invention provides a device for fixing a workpiece D of a notching machine A. The notching machine A includes a dividing plate B and a tray C. The tray C is fixed on the dividing plate B, and includes a dividing cylinder 2, a telescopic rod 3, an abutting plate 6, a center rod 8, a rotating plate 1041, a centering block 7, a pressing block 9, a telescopic component 1, a rotating component 104, a centering component 102, a pressing component 101, a locking component 4 and a resetting component 103. The dividing cylinder 2 is arranged on the dividing plate B, the telescopic rod 3 and the abutting plate 6 are slidably connected to the dividing plate B in sequence, and the sliding direction is up and down. An elastic member 31 is arranged between the abutting plate 6 and the telescopic rod 3, the center rod 8 is fixed at the center of the abutting plate 6, the rotating plate 1041 is rotatably connected in the abutting plate 6, and a locking member 4 is arranged on the abutting plate 6. There is a bonding disk 61, a center rod 8 is fixed on the bonding disk 61, a centering block 7 is arranged in the center rod 8, a pressing block 9 is arranged on the centering block 7, a telescopic component 1 is arranged at the bottom of the telescopic rod 3, which is used to control the up and down movement of the telescopic rod 3, a rotating component 104 is arranged in the telescopic rod 3, and when the abutment disk 6 and the telescopic rod 3 are relatively close, it drives the rotating disk 1041 to rotate, and makes the centering block 7 extend to center and clamp the workpiece D, the pressing component 101 is arranged in the center rod 8, and after the workpiece D is center-clamped, it drives the pressing block 9 to press the workpiece D down and fit it to the abutment disk 6, and the reset component 103 is arranged below the pressing block 9, and when the abutment disk 6 and the telescopic rod 3 are relatively far away, it drives the pressing block 9 and the centering block 7 to release the workpiece D in turn.

[0034] The centering blocks 7 and the pressing blocks 9 are provided in three or more groups, and the centering parts 102 and the pressing parts 101 are the same in number as the centering blocks 7 and the pressing blocks 9, so that when the centering blocks 7 extend out of the bonding plate 61, the center hole of the workpiece D can be centered and fixed.

[0035] The telescopic component 1 includes a hydraulic cylinder 11 and a connecting plate 12. The hydraulic cylinder 11 is fixed at the bottom of the dividing plate B. The connecting plate 12 is fixed on the hydraulic rod of the hydraulic cylinder 11. The connecting plate 12 is rotatably connected to the bottom of the telescopic rod 3. The upper end of the abutment plate 6 cooperates with the bottom of the pallet C. The cooperation here means that when the hydraulic cylinder 11 works to make the hydraulic rod push the telescopic rod 3 upward, the telescopic rod 3 drives the elastic member 31 and the abutment plate 6 to move upward, so that the upper end of the abutment plate 6 gradually fits with the bottom of the pallet C. After that, when the telescopic rod 3 continues to move upward, the elastic member 31 will be compressed and relatively close to the telescopic rod 3.

[0036] A lubricating part is provided at the upper end of the abutment plate 6, and the bottom of the pallet C cooperates with the lubricating part. The lubricating part can be a roller, lubricating oil, etc., which can reduce the friction between the abutment plate 6 and the pallet C. When the dividing plate B drives the dividing cylinder 2 to rotate, the dividing cylinder 2 drives the telescopic rod 3 and the abutment plate 6 to rotate synchronously, and the abutment plate 6 can rotate relative to the pallet C.

[0037] The rotating component 104 includes a rotating disk 1041, a rotating column 1043 and a rotating groove 1042. The rotating disk 1041 is rotatably connected to the top of the rotating cylinder 5 in the abutment disk 6. The rotating disk 1041 is fixedly connected to the rotating cylinder 5. The rotating column 1043 is arranged in the rotating cylinder 5. The rotating groove 1042 is opened on the outer side of the upper end of the telescopic rod 3. The rotating column 1043 cooperates with the rotating groove 1042. The cooperation here means that the rotating column 1043 is inserted into the rotating groove 1042 in normal state. When the telescopic rod 3 drives the rotating groove 1042 to move upward relative to the abutment disk 6, the rotating column 1043 will follow the arc of the rotating groove 1042 to drive the rotating cylinder 5 to rotate forward.

[0038] The centering component 102 includes a centering groove 1022, a centering column 1023, a centering block 7, a trigger groove 1024, a trigger block 1025, a trigger baffle 1026 and a trigger spring 1027. The centering groove 1022 is provided on the rotating disk 1041. The centering block 7 is radially slidably connected in the fitting disk 61. The centering column 1023 is fixed at the lower end of the centering block 7. The centering column 1023 cooperates with the centering groove 1022. The cooperation here means that when the rotating cylinder When the rotating cylinder 5 rotates, the rotating disk 1041 is driven to rotate, and the rotating disk 1041 is driven to rotate the centering slot 1022, so that the centering column 1023 is driven by the centering slot 1022 to drive the centering block 7 to move away from or close to the center of the fitting disk 61. The triggering slot 1024 is provided in the centering block 7, and the triggering block 1025 is slidably connected in the triggering slot 1024. The end of the triggering block 1025 close to the center hole of the workpiece D is a rubber having a certain elasticity. The rubber material can prevent the center of the workpiece D from being damaged when the center hole of the workpiece D is positioned and laterally expanded and clamped, and sufficient friction is provided to the workpiece D to satisfy the rotational friction required between the workpiece D and the trigger block 1025 when the dividing plate B drives the workpiece D to rotate. The trigger baffle 1026 is arranged on the trigger block 1025, and the two ends of the trigger spring 1027 are respectively abutted against the end of the trigger baffle 1026 close to the center of the bonding disk 61 and the inner wall of the bonding disk 61, and the end of the trigger block 1025 away from the center of the bonding disk 61 cooperates with the workpiece D. The cooperation here means that when the centering block 7 moves toward the side away from the center of the bonding disk 61, the centering block 7 will drive the trigger block 1025 to approach the workpiece D until the trigger block 1025 is in contact with the workpiece D. At this time, when the centering block 7 continues to move toward the side away from the center of the bonding disk 61, the centering block 7 will squeeze the trigger spring 1027 and slide relative to the trigger block 1025.

[0039] Working principle: When the workpiece D is placed on the pallet C and needs to be connected to the indexing machine to facilitate the indexing machine to drive the rotating notch punching, the operator first controls the hydraulic cylinder 11 to work, so that the hydraulic cylinder 11 drives the pressure rod to push the telescopic rod 3 upward, and the telescopic rod 3 drives the elastic member 31 and the abutment plate 6 to move upward, so that the upper end of the abutment plate 6 gradually fits with the bottom of the pallet C, and then the telescopic rod 3 continues to move upward to compress the elastic member 31, so that the telescopic rod 3 moves upward relative to the abutment plate 6. When the contact plate 6 moves upward, the rotating groove 1042 is driven to move upward relative to the rotating cylinder 5 in the contact plate 6, and the rotating column 1043 in the rotating cylinder 5 will slide along the arc of the rotating groove 1042, driving the rotating cylinder 5 to rotate forward. When the rotating cylinder 5 rotates forward, the rotating cylinder 5 drives the rotating plate 1041 to rotate forward, and the rotating plate 1041 rotates forward to drive the centering groove 1022 to rotate, so that the centering column 1023 is driven by the centering groove 1022 to drive the centering block 7 away from the contact plate 61. The center moves on one side, so that the centering block 7 gradually approaches the workpiece D. The centering block 7 will drive the trigger block 1025 to approach the workpiece D until the trigger block 1025 fits with the workpiece D, thereby realizing the centering positioning of the workpiece D, so that the center of the workpiece D corresponds to the center of the indexing disk B. When the indexing disk B drives the indexing cylinder 2 to rotate, the indexing cylinder 2 can drive the telescopic rod 3, the abutment disk 6, the centering block 7 and the trigger block 1025 to rotate synchronously, thereby making the workpiece D and the indexing cylinder 2 rotate concentrically, so that when the workpiece D is placed on the pallet C, there is no need to consider whether the center of the workpiece D is concentric with the indexing disk B, thereby improving work efficiency and preventing the center of the workpiece D from being scratched and worn between the center of the workpiece D and the center rod 8. At the same time, when the workpiece D is rotated, the rotation center of the workpiece D and the rotation center of the indexing disk B are on the same line, and the rotation center of the workpiece D will not be offset due to the mismatch between the center hole of the workpiece and the outer diameter of the center rod 8, thereby achieving convenient installation and being applicable to the center holes of workpieces D of different models while ensuring the processing accuracy.

[0040] Example 2

[0041] See also Figures 4 to 10A workpiece fixing device for a notching machine indexing plate is provided, comprising a pressing component 101, comprising a pressing spring 1011, a pressing groove 1012, a pressing column 1013 and a pressing hole 1014, wherein the pressing groove 1012 is provided in a center rod 8, a pressing block 9 is slidably connected to the pressing groove 1012, the pressing spring 1011 is arranged at the upper end of the pressing block 9, the pressing column 1013 is fixed at the lower end of the pressing block 9, the pressing column 1013 penetrates the centering block 7, and is connected to the rotating column 1014. 043 is slidably connected to the inner wall of the center, so that when the centering block 7 moves, it can drive the pressing block 9 to move synchronously. The pressing hole 1014 is set on the trigger block 1025, and the pressing column 1013 cooperates with the pressing hole 1014. The cooperation here means that when the trigger spring 1027 is not in a compressed state, the lower end of the pressing column 1013 fits with the upper end of the trigger block 1025. At this time, the pressing hole 1014 is located on the side of the pressing column 1013 close to the workpiece D. When the trigger block 1025 is in contact with the workpiece D, the pressing hole 1014 is located on the side of the pressing column 1013 close to the workpiece D. When the centering block 7 is relatively close, the centering block 7 will drive the lower pressure column 1013 to gradually slide on the upper end of the trigger block 1025 until the lower pressure column 1013 moves to just above the lower pressure hole 1014. At this time, the lower pressure block 9 and the lower pressure column 1013 move downward rapidly under the action of the lower pressure spring 1011, and the lower pressure block 9 is away from the center of the center rod 8. The cooperation here means that when the lower pressure block 9 moves downward, the end of the lower pressure block 9 away from the center rod 8 will gradually approach the workpiece D. The pressing block 9 moves closer to the workpiece D until it fits with the workpiece D. The radius of the fitting disk 61 is larger than the radius of the center rod 8 and smaller than the inner diameter of the center hole of the tray C. The length of the pressing block 9 is larger than the length of the centering block 7. When the centering block 7 drives the pressing block 9 to approach the workpiece D, the centering block 7 drives the trigger block 1025 to fit with the workpiece D. Then, the pressing block 9 is located on the upper surface of the workpiece D. When the pressing block 9 fits with the workpiece D, the pressing block 9 can cooperate with the fitting disk 61 to clamp the workpiece D.

[0042] The locking component 4 includes a locking disk 41, a locking groove 43, a locking block 42, a locking chamfer 44, a disengagement baffle 45, a disengagement block 48, a locking spring 47 and a grinding block 46. The locking groove 43 is opened in the rotating cylinder 5. The locking disk 41 is arranged between the rotating disk 1041 and the rotating cylinder 5. A gap is left between the upper end of the locking disk 41 and the lower end of the rotating column 1043. The locking block 42 is fixed to the lower end of the locking disk 41. The locking block 42 is slidably connected with the locking groove 43. The locking disk 41 keeps synchronous rotation with the rotating cylinder 5 under the cooperation of the locking block 42 and the locking groove 43. A reset spring (not shown in the figure) is arranged between the locking disk 41 and the locking cylinder. The reset spring can be a spring, a disc spring, etc. The locking plate 41 is provided with a locking chamfer 44 at the lower end of the locking block 42, the disengagement block 48 is radially slidably connected in the rotating cylinder 5, the disengagement baffle 45 is provided at the upper end of the disengagement block 48, the frosting block 46 is provided at the side of the disengagement block 48 away from the center of the rotating cylinder 5, the two ends of the locking spring 47 are respectively connected to the end of the disengagement block 48 away from the center of the rotating cylinder 5 and the inner wall of the rotating cylinder 5, the upper end of the locking plate 41 cooperates with the lower end of the lower pressure column 1013, and the cooperation here means that when the lower pressure column 1013 moves downward, the lower pressure column 1013 will gradually approach the locking plate 41 until the lower pressure column 1013 fits with the locking plate 41, and then pushes the locking plate 41 to squeeze the reset spring downward The locking chamfer 44 cooperates with the disengagement baffle 45. The cooperation here means that when the locking plate 41 moves downward, the locking block 42 will move downward, so that the locking block 42 drives the locking chamfer 44 downward to fit with the upper end of the disengagement baffle 45, and as the locking block 42 continues to move downward, the disengagement baffle 45 will move along the locking chamfer 44 to the side away from the center of the rotating cylinder 5 until the disengagement baffle 45 moves to the side of the locking block 42 away from the center of the rotating cylinder 5. At this time, the lower end of the pressing block 9 fits with the workpiece D, the grinding block 46 cooperates with the abutment plate 6, and the disengagement block 48 is connected to the rotating column 1043 at one end close to the center of the rotating disk 1041. The center of the rotating column 1043 can be moved on the disengagement block 48 rotates circumferentially to reduce the friction between the rotating column 1043 and the rotating groove 1042. The cooperation here means that when the disengagement block 48 is located in the rotating cylinder 5 close to the center of the rotating cylinder 5, the rotating column 1043 on the disengagement block 48 is inserted into the rotating groove 1042 and cooperates with the rotating groove 1042. When the disengagement baffle 45 moves to the side away from the center of the rotating cylinder 5, the disengagement baffle 45 drives the disengagement block 48, the rotating column 1043 and the grinding block 46 to move synchronously, so that the rotating column 1043 is pulled out of the rotating groove 1042. At the same time, the grinding block 46 extends out of the rotating cylinder 5 and fits with the inner wall of the abutment plate 6, so that the rotating cylinder 5 cannot rotate when the grinding block 46 and the abutment plate 6 fit.

[0043] The rest of the structure is the same as that of Example 1.

[0044] Working principle: When the trigger block 1025 is well fitted with the workpiece D, the centering block 7 continues to move away from the center of the fitting disk 61, and the centering block 7 will squeeze the trigger spring 1027 and slide relative to the trigger block 1025, so that the trigger block 1025 and the workpiece D fit more closely, and the centering block 7 will drive the lower pressure column 1013 to gradually slide on the upper end of the trigger block 1025 until the lower pressure column 1013 moves to just above the lower pressure hole 1014. During the movement, the centering block 7 will drive the lower pressure block 9 to move synchronously. When it moves to the top of the lower pressing hole 1014, the lower part of the lower pressing block 9 close to the workpiece D will be located above the workpiece D and the bonding plate 61, and the lower pressing block 9 and the lower pressing column 1013 move downward rapidly under the action of the lower pressing spring 1011, so that the lower pressing block 9 quickly presses the workpiece D onto the bonding plate 61, and fixes the bonding plate 61, so that the workpiece D can be fixed in multiple directions in the horizontal and vertical directions, so that when the indexing plate B drives the workpiece D to rotate and punch the groove, the workpiece D can be clamped more stably, thereby ensuring the punching processing accuracy of the workpiece D.

[0045] At the same time, when the lower pressure column 1013 moves downward, the lower pressure column 1013 will gradually approach the locking plate 41 until the lower pressure column 1013 is in contact with the locking plate 41, and then push the locking plate 41 to move downward. When the locking plate 41 moves downward, it will drive the locking block 42 to move downward, so that the locking block 42 drives the locking chamfer 44 downward to fit the upper end of the disengagement baffle 45, and as the locking block 42 continues to move downward, the disengagement baffle 45 will move along the locking chamfer 44 to the side away from the center of the rotating cylinder 5, until the disengagement baffle 45 moves to the side of the locking block 42 away from the center of the rotating cylinder 5. When the disengagement baffle 45 moves, it drives the disengagement block 48, the rotating column 1043 and the grinding block 46 to move synchronously, so that the rotating column 1043 is pulled out of the rotating groove 1042, at the same time, the sanding block 46 extends out of the rotating cylinder 5 and fits with the inner wall of the abutment disk 6, so that the rotating cylinder 5 cannot rotate when the sanding block 46 fits with the abutment disk 6, and after the trigger block 1025 is centered and supported to a certain force, the rotating cylinder 5 and the abutment disk 6 are locked, so that the centering block 7 and the rotating disk 1041 are relatively fixed, ensuring the stability of the trigger block 1025 centering the center of the workpiece D. At the same time, the rotating column 1043 is quickly pulled out of the rotating groove 1042, so that when the telescopic rod 3 continues to move upward, it will not stop moving due to the locking of the rotating cylinder 5, or cause damage to the rotating column 1043 or the telescopic rod 3, so that the telescopic rod 3 can be smoothly extended to the specified position under the drive of the hydraulic cylinder 11.

[0046] Example 3

[0047] See also Figures 6 to 10A fixing device for a workpiece D of a notching machine A is provided, comprising a reset component 103 including a reset groove 1031, a reset ring 1032, a reset rack 1033, a reset gear 1034 and an avoidance unit 1035, the reset groove 1031 is opened in the center rod 8, the reset ring 1032 is slidably connected in the reset groove 1031, the reset rack 1033 is fixed to the lower end of the reset ring 1032, the reset gear 1034 is rotatably connected, the reset gear 1034 is rotatably connected to the inner wall of the abutment plate 6, the reset gear 1034 is meshed with the reset rack 1033, the upper end of the reset ring 1032 cooperates with the lower end of the lower pressure block 9, the lower end of the lower pressure block 9 can slide on the reset ring 1032, and the avoidance unit 1035 is arranged in the telescopic rod 3.

[0048] The avoidance unit 1035 includes an avoidance groove 10351, an avoidance spring 10352, an avoidance block 10353, an avoidance tooth 10354 and an avoidance chamfer 10355. The avoidance groove 10351 is provided in the telescopic rod 3, the avoidance block 10353 is slidably connected in the avoidance groove 10351, the avoidance tooth 10354 is fixed on the avoidance block 10353, the avoidance chamfer 10355 is provided at the upper end of the avoidance tooth 10354 away from the avoidance block 10353, the avoidance tooth 10354 cooperates with the side of the reset gear 1034 away from the reset rack 1033, and the avoidance chamfer 10355 cooperates with the side of the reset gear 1034 away from the reset rack 1033. The cooperation here means that when the telescopic rod 3 is relatively close to the abutment plate 6, the telescopic rod 3 drives the avoidance block 10353 to move upward, and the avoidance chamfer 10355 on the avoidance block 10353 55 first fits with the reset gear 1034, and as the telescopic rod 3 moves upward, the avoidance block 10353 will move along the avoidance chamfer 10355 to the side away from the reset gear 1034 and squeeze the avoidance spring 10352, so that when the telescopic rod 3 is close to the abutment plate 6, the avoidance tooth 10354 can smoothly pass through the reset gear 1034. When the hydraulic rod contracts and drives the telescopic rod 3 to move downward, the telescopic rod 3 first moves downward relative to the abutment plate 6. At this time, the avoidance tooth 10354 on the avoidance block 10353 is engaged with the reset gear 1034 under the action of the avoidance spring 10352, driving the reset gear 1034 to rotate, thereby causing the reset rack 1033 on the other side of the reset gear 1034 to move upward, and the two ends of the avoidance spring 10352 are respectively connected to the end of the avoidance block 10353 away from the avoidance tooth 10354 and the inner wall of the telescopic rod 3.

[0049] The rest of the structure is the same as that of Example 2.

[0050] Working principle: After the workpiece D is notched, when the clamping of the workpiece D needs to be released, the operator only needs to control the hydraulic cylinder 11 so that the hydraulic rod of the hydraulic cylinder 11 drives the telescopic rod 3 to move downward. When the telescopic rod 3 moves downward, the abutment plate 6 maintains a state of being in contact with the bottom of the pallet C under the action of the elastic member 31. The telescopic rod 3 moves downward relative to the abutment plate 6. The telescopic rod 3 drives the avoidance tooth 10354 inside it to move downward. The downward movement of the avoidance tooth 10354 drives the reset gear 1034 to rotate. The rotation of the reset gear 1034 drives the reset rack 1033 to move upward. The upward movement of the reset rack 1033 drives the reset ring 1032 to move upward. The reset ring 1032 moves upward. The lower pressure block 9 is pushed to move upward, so that the lower pressure block 9 is separated from the upper end of the workpiece D, and the longitudinal clamping of the workpiece D is released. At the same time, the lower pressure column 1013 at the lower end of the lower pressure block 9 moves upward with the lower pressure block 9. During the upward movement of the lower pressure column 1013, the locking plate 41 drives the locking block 42 to move upward under the action of the reset spring until the reset spring completely resets the locking plate 41, and the locking block 42 moves to above the disengagement baffle 45. At this time, the disengagement block 48 at the lower end of the disengagement baffle 45 is reset under the action of the locking spring 47, so that the frosting block 46 is separated from the inner wall of the abutment plate 6, and the connecting column is fitted with the outer wall of the rotating cylinder 5, and the rotating cylinder 5 and the rotating plate 1041 release the axial lock between the abutment plate 6.

[0051] As the telescopic rod 3 continues to move downward, the reset ring 1032 continues to move upward, driving the pressure column 1013 to continue to move upward to the upper end of the pressure hole 1014 of the trigger block 1025. At this time, the trigger block 1025 is still in contact with the workpiece D. Since the rotating disk 1041 and the rotating cylinder 5 can rotate relative to the abutment disk 6, the centering block 7 can be reset for a distance under the action of the trigger spring 1027, so that the centering block 7 can move relative to the trigger block 1025 to the side away from the workpiece D. The movement of the centering block 7 drives the pressure column 1013 to move upward to the upper end of the pressure hole 1014 of the trigger block 1025. 3 moves, thereby causing the lower pressure column 1013 to move to the side of the trigger hole on the trigger block 1025 away from the workpiece D, until the avoidance tooth 10354 on the telescopic rod 3 completely moves to the lower side of the reset gear 1034, and the reset ring 1032 and the reset rack 1033 move downward under the action of gravity. At this time, the lower end of the lower pressure block 9 loses the abutment support of the reset ring 1032, and the lower pressure block 9 moves downward under the action of the lower pressure spring 1011, so that the lower pressure block 9 drives the lower end of the lower pressure column 1013 to fit with the upper end of the trigger block 1025.

[0052] After the avoidance tooth 10354 is completely moved to the lower side of the reset gear 1034, the telescopic rod 3 continues to move downward, driving the rotating groove 1042 to move downward. Since the rotating column 1043 is in contact with the outer wall of the rotating cylinder 5, when the telescopic rod 3 drives the rotating groove 1042 to move to face the rotating column 1043, the rotating column 1043 is reinserted into the rotating groove 1042 under the action of the locking spring 47. As the telescopic rod 3 continues to move downward, the rotating cylinder 5 reverses with the cooperation of the rotating column 1043 and the rotating groove 1042, so that the centering block 7 on the rotating disk 1041 moves away from the workpiece D, and then the centering block 7 drives the trigger block 1025 to separate from the center hole of the workpiece D, thereby realizing the axial cancellation of the clamping of the workpiece D. At the same time, when the clamping of the workpiece D is cancelled, it can still remain concentric with the dividing disk B, on the other hand, it is convenient for the subsequent robot to pick it up.

[0053] Finally, as the telescopic rod 3 continues to move downward, the telescopic rod 3 drives the elastic member 31 and the abutment plate 6 to move downward, so that the elastic member 31 is completely reset, the abutment plate 6 is separated from the abutment with the pallet C, and the center rod 8 moves to the lower end of the pallet C.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A workpiece fixing device for a notching machine indexing plate, wherein the notching machine (A) comprises a indexing plate (B) and a tray (C), wherein the tray (C) is fixed on the indexing plate (B), and wherein: The invention comprises a telescopic component (1), a dividing cylinder (2), a telescopic rod (3), a locking component (4), a rotating cylinder (5), an abutment disk (6), a centering block (7), a center rod (8), a pressing block (9), a pressing component (101), a centering component (102), a resetting component (103) and a rotating component (104); the dividing cylinder (2) is arranged on the dividing disk (B); the telescopic rod (3) and the abutment disk (6) are slidably connected to the dividing disk (B) in sequence, and the sliding direction is up and down; an elastic component (31) is arranged between the abutment disk (6) and the telescopic rod (3); the center rod (8) is fixed at the center of the abutment disk (6); the rotating cylinder (5) is rotatably connected in the abutment disk (6); a fitting disk (61) is arranged on the abutment disk (6); the center rod (8) is fixed on the fitting disk (61); The centering block (7) is arranged in the center rod (8), the pressing block (9) is arranged on the centering block (7), the telescopic component (1) is arranged at the bottom of the telescopic rod (3) and is used to control the telescopic rod (3) to move up and down, the rotating component (104) is arranged in the telescopic rod (3), and when the abutment plate (6) and the telescopic rod (3) are relatively close to each other, it drives the rotating cylinder (5) to rotate, and makes the centering block (7) extend to center and clamp the workpiece (D), the pressing block (101) is arranged in the center rod (8), and after the workpiece (D) is center-clamped, it drives the pressing block (9) to press the workpiece (D) down to fit the abutment plate (6), and the resetting component (103) is arranged below the pressing block (9), and when the abutment plate (6) and the telescopic rod (3) are relatively far away from each other, it drives the pressing block (9) and the centering block (7) to release the workpiece (D) in sequence.

2. The workpiece fixing device for the indexing plate of a notching machine according to claim 1, characterized in that: The telescopic component (1) comprises a hydraulic cylinder (11) and a connecting plate (12); the hydraulic cylinder (11) is fixed to the bottom of a dividing plate (B); the connecting plate (12) is fixed to a hydraulic rod of the hydraulic cylinder (11); the connecting plate (12) is rotatably connected to the bottom of the telescopic rod (3); and the upper end of the abutment plate (6) cooperates with the bottom of a tray (C).

3. The workpiece fixing device for the indexing plate of a notching machine according to claim 2, characterized in that: The upper end of the abutment plate (6) is provided with a lubricating member, and the bottom of the tray (C) cooperates with the lubricating member.

4. The workpiece fixing device for the indexing plate of a notching machine according to claim 2, characterized in that: The rotating component (104) comprises a rotating disk (1041), a rotating groove (1042) and a rotating column (1043); the rotating disk (1041) is rotatably connected to the upper part of the rotating cylinder (5) in the abutting disk (6); the rotating disk (1041) is fixedly connected to the rotating cylinder (5); the rotating column (1043) is arranged in the rotating cylinder (5); the rotating groove (1042) is arranged on the outer side of the upper end of the telescopic rod (3); and the rotating column (1043) cooperates with the rotating groove (1042).

5. The workpiece fixing device for the indexing plate of a notching machine according to claim 4, characterized in that: The centering component (102) comprises a centering groove (1022), a centering column (1023), a trigger groove (1024), a trigger block (1025), a trigger baffle (1026) and a trigger spring (1027); the centering groove (1022) is provided on the rotating disk (1041); the centering block (7) is radially slidably connected in the fitting disk (61); the centering column (1023) is fixed at the lower end of the centering block (7); the centering column (1023) and the centering groove (1022) are connected to each other. 2) cooperation, the trigger groove (1024) is opened in the centering block (7), the trigger block (1025) is slidably connected in the trigger groove (1024), the trigger baffle (1026) is arranged on the trigger block (1025), the two ends of the trigger spring (1027) are respectively in contact with the end of the trigger baffle (1026) close to the center of the bonding disk (61) and the inner wall of the bonding disk (61), and the end of the trigger block (1025 away from the center of the bonding disk (61) cooperates with the workpiece (D).

6. The workpiece fixing device for the indexing plate of a notching machine according to claim 5, characterized in that: The pressing component (101) comprises a pressing spring (1011), a pressing groove (1012), a pressing column (1013) and a pressing hole (1014); the pressing groove (1012) is arranged in the center rod (8); the pressing block (9) is slidably connected to the pressing groove (1012); the pressing spring (1011) is arranged at the upper end of the pressing block (9); the pressing column (1013) is fixed at the lower end of the pressing block (9); the pressing column (1013) passes through the centering block (7) and is slidably connected to the central inner wall of the rotating column (1043); the pressing hole (1014) is arranged on the trigger block (1025); the pressing column (1013) cooperates with the pressing hole (1014); and the pressing block (9) cooperates with the workpiece (D) at one end away from the center of the center rod (8).

7. The workpiece fixing device for the indexing plate of a notching machine according to claim 6, characterized in that: The locking component (4) comprises a locking plate (41), a locking block (42), a locking groove (43), a locking chamfer (44), a disengagement baffle (45), a grinding block (46), a locking spring (47) and a disengagement block (48); the locking groove (43) is arranged in the rotating cylinder (5); the locking plate (41) is arranged between the rotating plate (1041) and the rotating cylinder (5); the locking block (42) is fixed to the lower end of the locking plate (41); the locking block (42) is slidably connected to the locking groove (43); the locking chamfer (44) is arranged under the locking block (42); The disengagement block (48) is radially slidably connected in the rotating cylinder (5), the disengagement baffle (45) is arranged at the upper end of the disengagement block (48), the grinding block (46) is arranged at the side of the disengagement block (48) away from the center of the rotating cylinder (5), the two ends of the locking spring (47) are respectively connected to the end of the disengagement block (48) away from the center of the rotating cylinder (5) and the inner wall of the rotating cylinder (5), the upper end of the locking plate (41) cooperates with the lower end of the lower pressure column (1013), the locking chamfer (44) cooperates with the disengagement baffle (45), and the grinding block (46) cooperates with the abutment plate (6).

8. The workpiece fixing device for the indexing plate of a notching machine according to claim 7, characterized in that: The disengagement block (48) is connected to the rotating column (1043) at one end close to the center of the rotating disk (1041).

9. The workpiece fixing device for a notching machine indexing plate according to claim 8, characterized in that: The reset component (103) comprises a reset groove (1031), a reset ring (1032), a reset rack (1033), a reset gear (1034) and an avoidance unit (1035); the reset groove (1031) is arranged in the center rod (8); the reset ring (1032) is slidably connected in the reset groove (1031); the reset rack (1033) is fixed to the lower end of the reset ring (1032); the reset gear (1034) is rotatably connected; the reset gear (1034) is rotatably connected to the inner wall of the abutment plate (6); the reset gear (1034) is meshed with the reset rack (1033); the upper end of the reset ring (1032) cooperates with the lower end of the lower pressing block (9); and the avoidance unit (1035) is arranged in the telescopic rod (3).

10. The workpiece fixing device for the indexing plate of a notching machine according to claim 9, characterized in that: The avoidance unit (1035) comprises an avoidance groove (10351), an avoidance spring (10352), an avoidance block (10353), an avoidance tooth (10354) and an avoidance chamfer (10355); the avoidance groove (10351) is provided in the telescopic rod (3); the avoidance block (10353) is slidably connected in the avoidance groove (10351); the avoidance tooth (10354) is fixed on the avoidance block (10353); and the avoidance chamfer (10355) is provided. The avoidance tooth (10354) is arranged at the upper end of the side away from the avoidance block (10353), the avoidance tooth (10354) cooperates with the side of the reset gear (1034) away from the reset rack (1033), the avoidance chamfer (10355) cooperates with the side of the reset gear (1034) away from the reset rack (1033), and the two ends of the avoidance spring (10352) are respectively connected to the end of the avoidance block (10353) away from the avoidance tooth (10354) and the inner wall of the telescopic rod (3).

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