Device for measuring clamping force of tool pot in tool magazine of machining center

Abstract

The invention provides a device for measuring the clamping force of a tool can in a tool magazine of a machining center. The device comprises a tool apron, wherein the top end of the tool apron is connected with a clamping fixing head; the clamping force transmission petals are annularly distributed at equal intervals, the centers of the clamping force transmission petals are connected with spherical sliding blocks in a sliding mode, the clamping force transmission petals are evenly distributed on the inner side of the end, connected with the clamping fixing head, of the top end of the tool apron, and the spherical sliding blocks slide in the center of the interior of the tool apron; a measuring pull rod is slidably connected into the measuring seat, the top end of the measuring seat is fixed to the center of the bottom end of the tool apron, the bottom of the measuring pull rod elastically slides on the inner side of the center of the measuring seat, the two ends of the top of the measuring pull rod penetrate through the outer wall of the measuring seat and slide on the inner side of the measuring seat, and the spherical sliding block is in transmission connection with the measuring pull rod; according to the invention, the function that the measuring pull rod in the measuring seat applies tension to the tension meter can be realized, so that the clamping force of the cutter tank and the wear degree of the steel ball can be measured, and meanwhile, the measuring speed and the measuring precision of most cutter tanks can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of measuring the clamping force of a tool pot in a tool magazine of a machining center, and in particular to a device for measuring the clamping force of a tool pot in a tool magazine of a machining center. Background Art

[0002] The tool jar in the tool magazine of the machining center is a device for storing tools. It can correctly select and position the tools according to the control of the program for tool exchange. There are many types of tool jars, the common ones include the bamboo hat tool magazine, the disc tool magazine, and the chain tool magazine. The disc tool magazine arranges the tools in a disc shape, and the tool is taken and changed through the tool changing mechanism to achieve rapid tool replacement.

[0003] The tool holder and the tool are fixed in the tool magazine by installing the tool holder in the tool magazine, and the steel ball that can slide inside the tool magazine engages with the convex block at the rear end of the tool holder to complete the storage and removal of the tool holder and the tool. However, the steel ball will wear during use, causing the clamping force of the tool magazine to decrease, and the clamping force and wear degree of the steel ball are difficult to measure.

[0004] Therefore, finding a technical solution that can solve the above technical problems has become an important topic studied by technical personnel in this field. Summary of the invention

[0005] The embodiment of the invention discloses a device for measuring the clamping force of a tool pot in a tool magazine of a machining center, so as to improve the above-mentioned problem.

[0006] The present invention provides a device for measuring the clamping force of a tool tank in a tool magazine of a machining center, comprising:

[0007] The top end is connected to a knife holder with a clamping fixed head;

[0008] The clamping force transmission petals are evenly distributed in a ring shape and are slidably connected to a spherical slider at the center. The clamping force transmission petals are evenly distributed on the inner side of one end of the top of the tool holder connected to the clamping fixed head, and the spherical slider slides at the center of the tool holder;

[0009] A measuring seat with a measuring rod slidably connected inside, the top of the measuring seat is fixed at the center of the bottom end of the tool holder, the bottom of the measuring rod elastically slides inside the center of the measuring seat, the top two ends of the measuring rod penetrate the outer wall of the measuring seat and slide inside the measuring seat, and the spherical slider is transmission-connected to the measuring rod;

[0010] A dynamometer locked on both sides of the measuring seat and hooked to the measuring rod;

[0011] A positioning assembly that rotates inside the measuring seat and slides on both sides of the outer wall of the measuring seat to abut against the tensile gauge;

[0012] An adjustment key inserted at the center of the bottom surface of the measuring seat and driven by the measuring pull rod and the adjustment assembly;

[0013] The clamping force transmission petal is driven by force to drive the spherical slider to slide upwards, driving the measuring pull rod to move upwards and pulling the tension meter to obtain the clamping force;

[0014] The adjusting key is rotated to drive the tension at the bottom of the measuring rod to increase;

[0015] The adjusting key rotates to drive the adjusting assembly to slide and push the dynamometer to slide on the outer surface of the measuring seat.

[0016] As a preferred technical solution of the present application, the tool seat includes a mating conical seat, a pre-clamping rod is fixed at the center of the top end of the mating conical seat, the clamping fixing head is fixed to the top end of the pre-clamping rod, the clamping force transmission petal is connected to the outer wall of the top end of the pre-clamping rod, a tool changing wedge groove is provided on the outer wall of the bottom end of the mating conical seat, and a transmission hole that passes through the mating conical seat and the pre-clamping rod is provided at the center.

[0017] The cam is secured to the bottom of the cam and is secured to the bottom of the cam, and the cam is secured to the bottom of the cam.

[0018] As a preferred technical solution of the present application, a double through groove is provided on the upper inner side of the measuring seat, a pull groove is provided at the center of the bottom of the double through groove, a threaded hole is provided at the center of the bottom surface of the pull groove, the bottom of the threaded hole passes through the bottom surface of the measuring seat, a positioning drive hole is provided on the bottom surface of the threaded hole, and symmetrical positioning grooves are provided on both sides of the pull groove below the double through grooves.

[0019] As a preferred technical solution of the present application, the measuring pull rod includes a double-pass hook rod, both ends of the double-pass hook rod slide on the inner surface of the double-pass groove, and both ends of the double-pass hook rod extend to the outside of the measuring seat, a fixed block is fixed to the bottom surface of the double-pass hook rod, and the bottom of the fixed block slides inside the pull groove, a tension spring is fixed to the bottom surface of the fixed block, and the bottom end of the tension spring is connected to a fixing plate, and an inverted T-shaped block is fixed to the bottom surface of the fixing plate, a threaded rod is provided below the inverted T-shaped block, and an inverted T-shaped groove is opened on the top surface of the threaded rod, the inverted T-shaped block rotates on the inner side of the inverted T-shaped groove, the threaded rod is threadedly screwed inside the threaded hole, and a hexagonal groove is opened on the bottom surface of the threaded rod.

[0020] As a preferred technical solution of the present application, a display panel is provided on the upper front side of the dynamometer, an operation button is provided below the display panel, two symmetrical sets of strap positioning seats are fixed on both sides of the outer wall of the measuring seat away from the dynamometer, a fixing strap is passed through the inside of the strap positioning seat, and Velcro is sewn on one end and the outer surface of the fixing strap.

[0021] As a preferred technical solution of the present application, the positioning assembly includes a transmission main shaft, one end of the transmission main shaft close to the positioning groove is connected to the first gear, and the other end of the transmission main shaft is connected to the transmission gear.

[0022] As a preferred technical solution of the present application, a first driving shaft is provided on a side of the outer wall of the first gear close to the positioning groove, a second gear is provided on the outer wall of one end of the first driving shaft connected to the first gear, the second gear is meshed with the first gear, a third gear is provided on the outer wall of the other end of the first driving shaft, a second driving shaft is provided on a side of the outer wall of the third gear away from the positioning groove, a fourth gear is provided on the outer wall of one end of the second driving shaft connected to the third gear, the fourth gear is meshed with the third gear, a fifth gear is provided on the outer wall of the other end of the second driving shaft, and one side of the outer wall of the fifth gear is located on the inner side of the positioning groove.

[0023] As a preferred technical solution of the present application, two symmetrical groups of transmission shafts are provided on both sides of the transmission gear, and a screw is connected to the end of the transmission shaft away from the transmission gear. A driven gear is fixed at the position where the screw is connected to the transmission gear, and the driven gear is meshed with the transmission gear for transmission. A driven threaded ring with threaded meshing is sleeved on the outer wall of the screw, and a positioning hook is fixed on one side of the outer wall of the driven threaded ring. The positioning hook slides on the inner wall of the positioning groove and extends to the outside of the positioning groove, and the positioning groove abuts against the top of the dynamometer.

[0024] As a preferred technical solution of the present application, the adjusting key includes an insert rod, a hexagonal block is provided at the center of the top surface of one end of the insert rod, the insert rod is inserted into the inner side of the threaded hole, the hexagonal block is embedded in the inner side of the hexagonal groove, an adjusting ring block is fixed to the middle of the outer wall of the end of the insert rod away from the hexagonal block, a semi-ring driving tooth block distributed in an annular manner and equidistantly is fixed to one side of the outer wall of the adjusting ring block, the driving tooth block and one end of the fifth gear are provided with a avoiding tooth block, the driving tooth block is driven by meshing with the fifth gear through the avoiding tooth block, symmetrical embedded grooves are provided on both sides of the end of the insert rod connected to the hexagonal block, a driving handle is hinged deep inside the embedded groove, a magnetic block is fixed to the inner wall of the end of the driving handle away from the hinge point, and the magnetic block is magnetically adsorbed on the outer wall of the embedded groove.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] This embodiment in the scheme of the present application: by providing a clamping force transmission flap at the clamping fixing head position on the top of the knife seat, when the knife seat is combined with the knife jar, the steel ball of the knife jar can apply clamping force to the clamping force transmission flap, so that the clamping force transmission flap transmits the clamping force of the knife jar to the measuring pull rod, thereby realizing the function of the measuring pull rod inside the measuring seat applying tension to the dynamometer, thereby accurately measuring the clamping force of the steel ball inside the knife jar, so that the clamping force of the knife jar and the wear of the steel ball can be measured, and at the same time, the measurement speed and measurement accuracy of most knife jars can be improved.

[0027] 1. The present invention is provided with a clamping force transmission flap, which can utilize the contact between the force-bearing sliding flap and the steel ball to transmit the clamping force applied by the steel ball to the knife seat to the push ball inclined block, so that the push ball inclined block transmits the clamping force to the inside of the spherical slider, causing the spherical slider to slide, thereby completing the conversion of the clamping force of the measuring rod to the dynamometer, and accurately obtaining the clamping force and steel ball wear of the current knife pot, so as to know whether the steel ball should be replaced, thereby ensuring the clamping tightness of the knife pot on the knife and the safety of use.

[0028] 2. The present invention is provided with a measuring seat and a measuring rod sliding inside the measuring seat at the bottom end of the knife seat, which can cooperate with the clamping force transmission petal to transmit the clamping force applied by the steel ball to both sides of the measuring seat. In conjunction with the use of a dynamometer, the clamping force of the knife jar can be accurately converted. The double-pass design at both ends of the measuring rod can ensure the detection accuracy of the clamping force, while reducing the error caused by the unilateral force of the double-pass hook rod. The design of the tension spring and the threaded rod can ensure the accuracy of the resetting of the clamping force transmission petal after measurement, ensure the accuracy of multiple measurements, and can freely increase the tension of the tension spring by adjusting when the durability of the tension spring decreases.

[0029] 3. The present invention provides symmetrical positioning components on both sides of the measuring seat connected to the dynamometer. After the dynamometer is installed, the position of the dynamometer can be adjusted so that the hook of the dynamometer and the double-way hook rod are hooked on the upper side in a tensioned state, thereby ensuring the accuracy of the measurement result of the dynamometer. At the same time, the positioning component has a speed change function, which can improve the accuracy of the adjustment position of the dynamometer. The adjustment key at the bottom of the measuring seat can be used on both sides to adjust the tightness of the tension spring and drive the positioning component at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A schematic diagram of the overall structure of a device for measuring the clamping force of a tool tank in a tool magazine of a machining center provided by the present invention;

[0032] Figure 2 for Figure 1 The schematic diagram of the structure of the middle section of the knife holder shown;

[0033] Figure 3 for Figure 2 A schematic diagram of the structure of the clamping force transmission flap position shown;

[0034] Figure 4 for Figure 3 A schematic diagram of the structure of the clamping force transmission flap position shown;

[0035] Figure 5 for Figure 4 The schematic diagram of the structure of the upper positioning sleeve rod shown in FIG.

[0036] Figure 6 for Figure 2 The structural schematic diagram of the measuring seat position shown;

[0037] Figure 7 for Figure 6 The schematic structural diagram of the middle section of the measuring seat shown;

[0038] Figure 8 for Figure 7 The schematic diagram of the structure breakdown of the measuring rod position in the middle section of the measuring seat shown;

[0039] Fig. 9 for Figure 8 The schematic diagram of the structure of the measuring rod position is shown;

[0040] Fig.10 for Fig. 9 The structure of the adjustment key is shown in an expanded and enlarged schematic diagram;

[0041] Fig.11 for Figure 8 The schematic diagram of the structural decomposition of the internal adjustment components of the measuring seat shown;

[0042] Fig.12 for Fig.11 The schematic diagram of the structural decomposition and enlargement of the positioning component shown.

[0043] Indicated in the figure:

[0044] 1. Tool holder; 11. Matching cone seat; 12. Pre-clamping rod; 13. Tool change wedge groove; 14. Transmission hole;

[0045] 2. Clamping fixed head;

[0046] 3. Clamping force transmission petal; 31. Sliding petal groove; 32. Force sliding petal; 33. Push ball inclined block; 34. Spherical slider; 35. Lower positioning rod; 36. Upper positioning sleeve rod; 37. Reset spring; 38. Transmission steel bar;

[0047] 4. Measuring seat; 41. Double through slots; 42. Drawing slots; 43. Threaded holes; 44. Adjustment drive holes; 45. Positioning slots;

[0048] 5. Measuring rod; 51. Double-pass hook rod; 52. Fixing block; 53. Tension spring; 54. Fixing plate; 55. Threaded rod; 56. Hexagon socket; 57. Inverted T-shaped block; 58. Inverted T-shaped slot;

[0049] 6. Tension gauge; 61. Display panel; 62. Operation button; 63. Strap positioning seat; 64. Fixing belt; 65. Velcro;

[0050] 7. Positioning assembly; 71. Transmission spindle;

[0051] 72, first gear; 721, first drive shaft; 722, second gear; 723, third gear; 724, second drive shaft; 725, fourth gear; 726, fifth gear;

[0052] 73, transmission gear; 731, transmission shaft; 732, screw; 733, driven gear; 734, driven threaded ring; 735, positioning hook;

[0053] 8. Adjustment key; 81. Insertion rod; 82. Hexagonal block; 83. Adjustment ring block; 84. Drive tooth block; 85. Avoidance tooth block; 86. Embedded groove; 87. Drive handle; 88. Magnetic block. DETAILED DESCRIPTION

[0054] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than 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.

[0055] See also Figure 1 The embodiment of the present invention provides a device for measuring the clamping force of a tool jar in a tool magazine of a machining center, which is used for quickly measuring the clamping force of a steel ball clamped by the tool jar in the tool magazine, and has a dual-instrument high-precision adjustment function, which is beneficial to improving the measurement accuracy of the clamping force of the tool jar.

[0056] Specifically, please refer to Figure 1-Figure 12 The device for measuring the clamping force of a tool tank in a tool magazine of a machining center specifically comprises:

[0057] A knife holder 1 with a clamping fixing head 2 connected to the top;

[0058] The clamping force transmission petals 3 are evenly distributed in a ring shape and are slidably connected to a spherical slider 34 at the center. The clamping force transmission petals 3 are evenly distributed on the inner side of one end of the top of the tool holder 1 connected to the clamping fixing head 2. The spherical slider 34 slides at the center of the tool holder 1.

[0059] A measuring seat 4 is internally slidably connected with a measuring rod 5, the top of the measuring seat 4 is fixed at the center of the bottom end of the tool holder 1, the bottom of the measuring rod 5 elastically slides inside the center of the measuring seat 4, the top two ends of the measuring rod 5 penetrate the outer wall of the measuring seat 4 and slide inside the measuring seat 4, and the spherical slider 34 is transmission-connected with the measuring rod 5;

[0060] A dynamometer 6 locked on both sides of the measuring seat 4 and hooked to the measuring rod 5;

[0061] A positioning assembly 7 is rotated inside the measuring seat 4 and slides on both sides of the outer wall of the measuring seat 4 to abut against the tensiometer 6;

[0062] An adjustment key 8 inserted at the center of the bottom surface of the measuring seat 4 and driven by the measuring pull rod 5 and the adjustment assembly 7;

[0063] The clamping force transmission petal 3 is driven by the force to drive the spherical slider 34 to slide upwards, driving the measuring rod 5 to move upwards and pulling the dynamometer 6 to obtain the clamping force;

[0064] The adjusting key 8 rotates to drive the bottom tension of the measuring rod 5 to increase;

[0065] The adjusting key 8 rotates to drive the adjusting assembly 7 to slide and push the dynamometer 6 to slide on the outer surface of the measuring seat 4 .

[0066] The present invention provides a device for measuring the clamping force of a knife jar in a tool magazine of a machining center. By arranging a clamping force transmission flap 3 at the position of a clamping fixing head 2 on the top of a knife seat 1, the knife seat 1 can apply a clamping force to the clamping force transmission flap 3 through a steel ball of the knife jar when the knife seat 1 is combined with the knife jar, so that the clamping force transmission flap 3 transmits the clamping force of the knife jar to a measuring pull rod 5, thereby realizing the function of the measuring pull rod 5 inside the measuring seat 4 applying a pulling force to a dynamometer 6, thereby accurately measuring the clamping force of the steel ball inside the knife jar, so that the clamping force of the knife jar and the wear degree of the steel ball can be measured, and at the same time, the measurement speed and measurement accuracy of most knife jars can be improved.

[0067] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0068] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0069] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0070] Example 1

[0071] Please refer to Figure 1-Figure 12 A device for measuring the clamping force of a tool jar in a tool magazine of a machining center, wherein the tool holder 1 comprises a matching cone seat 11, a pre-clamping rod 12 is fixed at the center of the top end of the matching cone seat 11, the clamping fixing head 2 is fixed to the top end of the pre-clamping rod 12, the clamping force transmission petal 3 is connected to the outer wall of the top end of the pre-clamping rod 12, a tool changing wedge groove 13 is provided on the outer wall of the bottom end of the matching cone seat 11, and a transmission hole 14 that passes through from top to bottom is provided at the center of the matching cone seat 11 and the pre-clamping rod 12.

[0072] The position where the pre-clamping rod 12 is connected to the clamping force transmission flap 3 is provided with an annular equidistantly distributed sliding flap groove 31, the inner bottom of the sliding flap groove 31 is hinged with a force-bearing sliding flap 32, the inner wall of the force-bearing sliding flap 32 is fixed with a ball-pushing inclined block 33, the side of the ball-pushing inclined block 33 away from the force-bearing sliding flap 32 abuts against the surface of a spherical slider 34, the spherical slider 34 slides between the annularly distributed ball-pushing inclined blocks 33, a lower positioning rod 35 is fixed at the center of the top surface of the spherical slider 34, and the top of the lower positioning rod 35 is provided with a There is an upper positioning sleeve rod 36, the top end of the lower positioning rod 35 is limited and slides on the inner wall of the upper positioning sleeve rod 36, and the end of the upper positioning sleeve rod 36 away from the lower positioning rod 35 is fixed to the inner top surface of the clamping fixing head 2. A return spring 37 is provided on the inner side of the upper positioning sleeve rod 36, and the bottom end of the return spring 37 abuts against the top surface of the lower positioning rod 35. A transmission steel bar 38 is fixed at the center of the bottom surface of the spherical slider 34. The transmission steel bar 38 is penetrated into the transmission hole 14 and extends to the outside of the bottom of the matching cone seat 11.

[0073] The present invention is provided with a clamping force transmission flap 3, which can utilize the contact between the force-bearing sliding flap 32 and the steel ball to transmit the clamping force applied by the steel ball to the knife seat 1 to the ball-pushing inclined block 33, so that the ball-pushing inclined block 33 transmits the clamping force to the inside of the spherical slider 34, causing the spherical slider 34 to slide, thereby completing the clamping force conversion of the measuring pull rod 5 to the dynamometer 6, and accurately obtaining the clamping force and steel ball wear of the current knife pot, so as to know whether the steel ball should be replaced, thereby ensuring the clamping tightness of the knife pot on the knife and the safety of use.

[0074] Example 2

[0075] The tool holder clamping force measuring device in a tool magazine of a machining center provided in Example 1 is further optimized. Specifically, Figure 1-Figure 12 A double through groove 41 is provided on the upper inner side of the measuring seat 4, a drawing groove 42 is provided at the bottom center of the double through groove 41, a threaded hole 43 is provided at the bottom center of the drawing groove 42, the bottom of the threaded hole 43 passes through the bottom surface of the measuring seat 4, a positioning drive hole 44 is provided on the bottom surface of the threaded hole 43, and symmetrical positioning grooves 45 are provided on both sides of the drawing groove 42 below the double through groove 41.

[0076] The measuring pull rod 5 includes a double-through hook rod 51, both ends of which slide on the inner surface of the double-through groove 41, and both ends of the double-through hook rod 51 extend to the outside of the measuring seat 4. A fixing block 52 is fixed to the bottom surface of the double-through hook rod 51, and the bottom of the fixing block 52 slides inside the groove 42. A tension spring 53 is fixed to the bottom surface of the fixing block 52, and a fixing plate 54 is connected to the bottom end of the tension spring 53. An inverted T-shaped block 57 is fixed to the bottom surface of the fixing plate 54. A threaded rod 55 is provided below the inverted T-shaped block 57, and an inverted T-shaped groove 58 is provided on the top surface of the threaded rod 55. The inverted T-shaped block 57 rotates on the inner side of the inverted T-shaped groove 58. The threaded rod 55 is threadedly screwed into the threaded hole 43, and a hexagonal groove 56 is provided on the bottom surface of the threaded rod 55.

[0077] A display panel 61 is provided above the front of the dynamometer 6, and an operation button 62 is provided below the display panel 61. Two symmetrical groups of strap positioning seats 63 are fixed on both sides of the outer wall of the measuring seat 4 away from the dynamometer 6. A fixing strap 64 is passed through the inside of the strap positioning seat 63, and Velcro 65 is sewn on one end and the outer surface of the fixing strap 64 for bonding.

[0078] A measuring seat 4 and a measuring rod 5 sliding inside the measuring seat 4 are provided at the bottom end of the knife seat 1, which can cooperate with the clamping force transmission petal 3 to transmit the clamping force applied by the steel ball to both sides of the measuring seat 4. In conjunction with the use of the dynamometer 6, the clamping force of the knife jar can be accurately converted. The double-pass design at both ends of the measuring rod 5 can ensure the detection accuracy of the clamping force, while reducing the error caused by the unilateral force of the double-pass hook rod 51. The design of the tension spring 53 and the threaded rod 55 can ensure the accuracy of the resetting of the clamping force transmission petal 3 after measurement, ensure the accuracy of multiple measurements, and can freely increase the tension of the tension spring 53 by adjusting when the durability of the tension spring 53 decreases.

[0079] Example 3

[0080] The tool tank clamping force measuring device in a tool magazine of a machining center provided in Embodiment 1 or 2 is further optimized. Specifically, Figure 1-Figure 12 As shown, the positioning assembly 7 includes a transmission main shaft 71 , one end of the transmission main shaft 71 close to the positioning groove 45 is connected to a first gear 72 , and the other end of the transmission main shaft 71 is connected to a transmission gear 73 .

[0081] A first driving shaft 721 is provided on the side of the outer wall of the first gear 72 close to the positioning groove 45, a second gear 722 is provided on the outer wall of one end of the first driving shaft 721 connected to the first gear 72, the second gear 722 is meshed with the first gear 72, a third gear 723 is provided on the outer wall of the other end of the first driving shaft 721, a second driving shaft 724 is provided on the side of the outer wall of the third gear 723 away from the positioning groove 45, a fourth gear 725 is provided on the outer wall of one end of the second driving shaft 724 connected to the third gear 723, the fourth gear 725 is meshed with the third gear 723, a fifth gear 726 is provided on the outer wall of the other end of the second driving shaft 724, and one side of the outer wall of the fifth gear 726 is located on the inner side of the positioning groove 45.

[0082] Two symmetrical groups of transmission shafts 731 are provided on both sides of the transmission gear 73. A screw rod 732 is connected to one end of the transmission shaft 731 away from the transmission gear 73. A driven gear 733 is fixed at the position where the screw rod 732 is connected to the transmission gear 73. The driven gear 733 is meshed with the transmission gear 73 for transmission. A driven threaded ring 734 is sleeved on the outer wall of the screw rod 732 in threaded engagement. A positioning hook 735 is fixed to one side of the outer wall of the driven threaded ring 734. The positioning hook 735 slides on the inner wall of the positioning groove 45 and extends to the outside of the positioning groove 45. The positioning groove 45 abuts against the top of the dynamometer 6.

[0083] The adjusting key 8 comprises an insert rod 81, a hexagonal block 82 is provided at the center of the top surface of one end of the insert rod 81, the insert rod 81 is inserted into the inner side of the threaded hole 43, the hexagonal block 82 is embedded in the inner side of the hexagonal groove 56, an adjusting ring block 83 is fixed to the middle of the outer wall of the end of the insert rod 81 away from the hexagonal block 82, a semi-ring driving tooth block 84 distributed in an annular manner and equidistantly is fixed to one side of the outer wall of the adjusting ring block 83, a avoiding tooth block 85 is provided at one end of the driving tooth block 84 and the fifth gear 726, the driving tooth block 84 is driven by meshing with the fifth gear 726 through the avoiding tooth block 85, symmetrical embedded grooves 86 are provided on both sides of the end of the insert rod 81 connected to the hexagonal block 82, a driving handle 87 is hinged deep inside the embedded groove 86, a magnetic block 88 is fixed to the inner wall of the end of the driving handle 87 away from the hinge point, and the magnetic block 88 is magnetically adsorbed on the outer wall of the embedded groove 86.

[0084] Symmetrical adjustment components 7 are provided on both sides of the measuring seat 4 connected to the dynamometer 6. After the dynamometer 6 is installed, the position of the dynamometer 6 can be adjusted so that the hook of the dynamometer 6 and the double-way hook rod 51 are hooked on the upper side in a tensioned state, thereby ensuring the accuracy of the measurement result of the dynamometer 6. At the same time, the adjustment component 7 has a speed change function, which can improve the accuracy of the adjustment position of the dynamometer 6. The adjustment key 8 at the bottom of the measuring seat 4 can be used on both sides to adjust the tightness of the tension spring 53 and drive the adjustment component 7 at the same time.

[0085] The use process of the tool can clamping force measuring device in a tool magazine of a machining center provided by the present invention is as follows:

[0086] Install the dynamometer 6 on both sides of the tool holder 1 (the dynamometer 6 can be a Wedo WD digital push-pull dynamometer 6 and a Santo dynamometer or a dynamometer 6 with quick pulling and recording functions). When installing the dynamometer 6, make the end of the dynamometer 6 with the hook contact with the positioning hook 735, and then hang the hook on the outside of the double-pass hook rod 51.

[0087] Insert the adjusting ring block 83 of the adjusting key 8 into the inner side of the adjusting driving hole 44. At this time, the driving tooth block 84 on the outer wall of the adjusting ring block 83 will mesh with the fifth gear 726 through the avoiding tooth block 85. Move the driving handles 87 on both sides of one end of the insert rod 81 to unfold. Use the driving handles 87 to rotate the adjusting ring block 83, so that the driving tooth block 84 on one side of the adjusting ring block 83 drives the fifth gear 726 to rotate.

[0088] The fifth gear 726 will drive the fourth gear 725 coaxially connected thereto to rotate, and the rotation of the fourth gear 725 will drive the third gear 723 meshing therewith to rotate, and the rotation of the third gear 723 will drive the second gear 722 coaxially connected thereto to rotate through the first driving shaft 721, and the rotation of the second gear 722 will drive the first gear 72 meshing therewith to rotate, and the rotation of the first gear 72 will drive the transmission gear 73 to rotate through the transmission main shaft 71, and the rotation of the transmission gear 73 will drive the driven gears meshing on both sides thereof When the wheel 733 rotates, the rotation of the driven gear 733 will drive the transmission shaft 731 and the screw 732 coaxial therewith to rotate synchronously (the screws 732 on both sides rotate in the same direction, but the thread directions are different, and the driven threaded ring 734 meshing with the screw 732 will slide synchronously in one direction), and the rotation of the screw 732 will drive the driven threaded ring 734 meshing with its outer thread to slide, and the sliding of the driven threaded ring 734 will drive the positioning hook 735 to move, and the displacement of the positioning hook 735 will push the dynamometer 6 abutting against it to move downward.

[0089] When the dynamometer 6 is displaced, the hook of the dynamometer 6 will be fully unfolded because its hook is hung on the outside of the double-pass hook rod 51. When the tension number appears on the display panel 61 of the dynamometer 6 and the hook of the surface dynamometer 6 is in a fully tensioned state, stop turning the adjustment key 8, use the fixing belt 64 to fix the tail end of the dynamometer 6 with the Velcro 65, press the operation button 62 of the dynamometer 6 to return the dynamometer 6 to zero, or use the adjustment key 8 to adjust the tension number of the dynamometer 6 to an integer, which is a number that is easy to record.

[0090] After the adjustment key 8 is used, the adjustment key 8 is removed, and the driving handle 87 is moved to absorb and embed the driving handle 87 into the embedded groove 86 by using the magnetic block 88 .

[0091] After the dynamometer 6 is adjusted, the tool holder 1 is installed inside the clamping seat of the tool changing arm of the machining center lathe through the tool changing wedge groove 13. During installation, the lathe tool changing arm will use the clamping claw and wedge block to fix the tool holder 1, and then the tool changing arm rotates to remove the turning tool and the tool holder 1 that need to be tested, and the tool changing arm rotates to move the tool holder 1 to the tool jar position of the tool magazine. At this time, the tool changing arm can extend and retract the tool holder 1 on both sides and the turning tool removed from the tool magazine to install them on the lathe and the tool jar of the tool magazine. When the tool holder 1 is inserted into the tool magazine, the clamping steel column of the tool magazine is in a relaxed state. As the tool holder 1 moves, the clamping fixing head 2 at the top of the tool holder 1 is inserted into the inside of the tool jar, and the clamping fixing head 2 pushes the steel column to make it fully inserted into the deep of the tool jar.

[0092] At this time, the tool magazine drives the steel column and steel ball to move upward. During the movement of the steel ball, its sliding space shrinks, pushing the steel column to slide inward, so the steel column will abut against the surface of the force-bearing sliding flap 32. As the steel column moves upward, the contraction of the steel ball gradually tightens, and the force-bearing sliding flap 32 is subjected to the clamping force to push the ball-pushing inclined block 33 to rotate and shrink. The ball-pushing inclined block 33 shrinks and squeezes the spherical slider 34. The spherical slider 34 moves upward under the pressure and synchronously drives the lower positioning rod 35 and the transmission steel bar 38 to move upward. The lower positioning rod 35 moves upward to squeeze the internal reset spring 37 of the upper positioning sleeve rod 36, and the transmission steel bar 38 moves upward, driving the measuring pull rod 5 connected to its bottom end to move upward.

[0093] The upward movement of the measuring rod 5 synchronously drives the hooks of the dynamometers 6 hooked on both sides to move upward and the fixing block 52 to move upward.

[0094] When the hook of the dynamometer 6 is pulled, the dynamometer 6 is pulled to count, so that the dynamometer 6 completely records the clamping force applied by the knife pot of the tool magazine to the knife seat 1.

[0095] The upward movement of the fixing block 52 will drive the tension spring 53 to stretch, so that the tension spring 53 accumulates force to pull the fixing block 52 and the double-pass hook rod 51 .

[0096] When the steel column of the tool magazine completely clamps and fixes the stressed sliding flap 32, the clamping force of the tool jar at this location can be completely measured.

[0097] When the clamping force measurement is completed, the tool magazine will reset the original turning tool and the tool holder 1 will be taken out. During the removal of the tool holder 1, the steel ball of the tool magazine will move downward and gradually slide and separate from the force-bearing sliding flap 32. The force-bearing sliding flap 32 will be pulled by the reset spring 37 and the tension spring 53 at the same time, and the spherical slider 34 will slide downward by the lower positioning rod 35 and the transmission steel bar 38, so that the clamping force transmission flap 3 and the measuring pull rod 5 are completely and accurately reset for the next use.

[0098] After the measurement is completed, the tool magazine can start the tool change to reset the originally taken out turning tool, and then the tool holder 1 is in the clamping position. After that, there is no need to install the tool holder 1 on the lathe, and the next set of turning tools can be directly replaced. The tool holder 1 can be directly installed inside the next set of tool cans that need to be tested. This cycle can quickly measure the clamping force of all tool cans in the tool magazine of the machining center.

[0099] When all knife cans are measured, remove the two sets of dynamometers 6 and record the knife can measurement data through the operation button 62 and the display panel 61. By comparing the data, the clamping force of the knife can and the cutting tool position of the damaged knife can can be obtained.

[0100] It should be noted that when comparing data, if the dynamometer 6 has data comparison and data recording position functions, all data comparison can be directly presented through the display panel 61. If it does not have this function, the data can be compared by writing it on paper.

[0101] When the elastic force of the tension spring 53 or the reset spring 37 is insufficient after the knife holder 1 has been used for a long time, the end of the inserted rod 81 can be inserted into the threaded hole 43 by adjusting the friction force of the adjusting ring block 83 and the driving tooth block 84, and the threaded rod 55 can be rotated directly by turning the adjusting key 8, and slowly slide from the threaded hole 43 to the outside, so that the threaded rod 55 pulls the tension spring 53, increases the tension energy storage of the tension spring 53, and enables the tension spring 53 to continue to have a high-strength tension to pull the spherical slider 34 to reset.

[0102] During the rotation of the threaded rod 55 , since the threaded rod 55 adopts the inverted T-shaped groove 58 to limit the rotation connection with the inverted T-shaped block 57 of the fixing plate 54 , the tension spring 53 will not rotate, and at the same time has the function of pulling the tension spring 53 .

[0103] The above is a detailed introduction to the tool jar clamping force measuring device in the tool magazine of a machining center provided by the present invention. For a general technician in this field, according to the ideas of the embodiments of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A device for measuring the clamping force of a tool tank in a tool magazine of a machining center, characterized in that: include: A knife seat (1) having a clamping fixing head (2) connected to the top end; The clamping force transmission petals (3) are evenly distributed in a ring shape and are slidably connected to a spherical slider (34) at the center. The clamping force transmission petals (3) are evenly distributed on the inner side of one end of the top of the knife seat (1) connected to the clamping fixing head (2). The spherical slider (34) slides at the inner center of the knife seat (1); A measuring seat (4) is internally slidably connected to a measuring rod (5), the top of the measuring seat (4) is fixed at the center of the bottom end of the tool holder (1), the bottom of the measuring rod (5) elastically slides inside the center of the measuring seat (4), the top ends of the measuring rod (5) penetrate the outer wall of the measuring seat (4) and slide inside the measuring seat (4), and the spherical slider (34) is transmission-connected to the measuring rod (5); A dynamometer (6) locked on both sides of the measuring seat (4) and hooked and connected to the measuring pull rod (5); A positioning assembly (7) which rotates inside the measuring seat (4) and slides on both sides of the outer wall of the measuring seat (4) to abut against the tensile gauge (6); An adjustment key (8) inserted at the center of the bottom surface of the measuring seat (4) and driven by the measuring pull rod (5) and the adjustment component (7); The clamping force transmission petal (3) is subjected to force to drive the spherical slider (34) to slide upwards, driving the measuring pull rod (5) to move upwards and pulling the tension meter (6) to obtain the clamping force; The adjusting key (8) rotates to drive the bottom tension of the measuring rod (5) to increase; The adjusting key (8) rotates to drive the adjusting component (7) to slide and push the dynamometer (6) to slide on the outer surface of the measuring seat (4).

2. The device for measuring the clamping force of a tool tank in a tool magazine of a machining center according to claim 1, characterized in that: The tool holder (1) comprises a matching cone seat (11), a pre-clamping rod (12) is fixed at the center of the top end of the matching cone seat (11), the clamping fixing head (2) is fixed to the top end of the pre-clamping rod (12), the clamping force transmission petal (3) is connected to the outer wall of the top end of the pre-clamping rod (12), a tool changing wedge groove (13) is provided on the outer wall of the bottom end of the matching cone seat (11), and a transmission hole (14) which passes through from top to bottom is provided at the center of the matching cone seat (11) and the pre-clamping rod (12).

3. The device for measuring the clamping force of a tool tank in a tool magazine of a machining center according to claim 2, characterized in that: The position where the pre-clamping rod (12) is connected to the clamping force transmission flap (3) is provided with an annularly equidistantly distributed sliding flap groove (31), the inner bottom of the sliding flap groove (31) is hinged with a force-bearing sliding flap (32), the inner wall of the force-bearing sliding flap (32) is fixed with a ball-pushing inclined block (33), the side of the ball-pushing inclined block (33) away from the force-bearing sliding flap (32) is in contact with the surface of a spherical slider (34), the spherical slider (34) slides between the annularly distributed ball-pushing inclined blocks (33), a lower positioning rod (35) is fixed at the center of the top surface of the spherical slider (34), and the top of the lower positioning rod (35) is provided with a An upper positioning sleeve rod (36) is provided, the top end of the lower positioning rod (35) is limitedly slid on the inner wall of the upper positioning sleeve rod (36), one end of the upper positioning sleeve rod (36) away from the lower positioning rod (35) is fixed on the inner top surface of the clamping fixing head (2), a return spring (37) is provided on the inner side of the upper positioning sleeve rod (36), the bottom end of the return spring (37) abuts against the top surface of the lower positioning rod (35), a transmission steel bar (38) is fixed at the center of the bottom surface of the spherical slider (34), the transmission steel bar (38) is penetrated inside the transmission hole (14) and extends to the outer side of the bottom of the matching cone seat (11).

4. The device for measuring the clamping force of a tool tank in a tool magazine of a machining center according to claim 1, characterized in that: A double through groove (41) is provided on the upper side of the measuring seat (4), a drawing groove (42) is provided at the center of the bottom of the double through groove (41), a threaded hole (43) is provided at the center of the bottom surface of the drawing groove (42), the bottom of the threaded hole (43) passes through the bottom surface of the measuring seat (4), a positioning drive hole (44) is provided on the bottom surface of the threaded hole (43), and symmetrical positioning grooves (45) are provided on both sides of the drawing groove (42) below the double through groove (41).

5. The device for measuring the clamping force of a tool tank in a tool magazine of a machining center according to claim 4, characterized in that: The measuring pull rod (5) comprises a double-pass hook rod (51), both ends of which slide on the inner surface of the double-pass groove (41), and both ends of which extend to the outside of the measuring seat (4). A fixing block (52) is fixed to the bottom surface of the double-pass hook rod (51), and the bottom of the fixing block (52) slides inside the pull groove (42). A tension spring (53) is fixed to the bottom surface of the fixing block (52), and the bottom end of the tension spring (53) is connected to the measuring seat (4). A fixing plate (54) is connected, an inverted T-shaped block (57) is fixed on the bottom surface of the fixing plate (54), a threaded rod (55) is arranged below the inverted T-shaped block (57), an inverted T-shaped groove (58) is provided on the top surface of the threaded rod (55), the inverted T-shaped block (57) rotates inside the inverted T-shaped groove (58), the threaded rod (55) is threadedly connected inside the threaded hole (43), and a hexagonal groove (56) is provided on the bottom surface of the threaded rod (55).

6. The tool holder clamping force measuring device in a tool magazine of a machining center according to claim 1, characterized in that: A display panel (61) is provided above the front of the dynamometer (6), and an operation button (62) is provided below the display panel (61). Two symmetrical groups of strap positioning seats (63) are fixed on the outer wall of the measuring seat (4) away from the dynamometer (6), and a fixing belt (64) is passed through the inside of the strap positioning seat (63). Velcro (65) is sewn on one end and the outer surface of the fixing belt (64) for bonding.

7. The device for measuring the clamping force of a tool tank in a tool magazine of a machining center according to claim 4, characterized in that: The positioning assembly (7) comprises a transmission main shaft (71), one end of the transmission main shaft (71) close to the positioning groove (45) is connected to a first gear (72), and the other end of the transmission main shaft (71) is connected to a transmission gear (73).

8. The device for measuring the clamping force of a tool tank in a tool magazine of a machining center according to claim 7, characterized in that: A first driving shaft (721) is provided on a side of the outer wall of the first gear (72) close to the positioning groove (45); a second gear (722) is provided on an outer wall of one end of the first driving shaft (721) connected to the first gear (72); the second gear (722) meshes with the first gear (72); a third gear (723) is provided on an outer wall of the other end of the first driving shaft (721); a second driving shaft (724) is provided on an outer wall of the third gear (723) away from the positioning groove (45); a fourth gear (725) is provided on an outer wall of one end of the second driving shaft (724) connected to the third gear (723); the fourth gear (725) meshes with the third gear (723); a fifth gear (726) is provided on an outer wall of the other end of the second driving shaft (724); one side of the outer wall of the fifth gear (726) is located on the inner side of the positioning groove (45).

9. The device for measuring the clamping force of a tool tank in a tool magazine of a machining center according to claim 8, characterized in that: Two symmetrical groups of transmission shafts (731) are provided on both sides of the transmission gear (73); one end of the transmission shaft (731) away from the transmission gear (73) is connected to a screw rod (732); a driven gear (733) is fixed at the position where the screw rod (732) and the transmission gear (73) are connected; the driven gear (733) and the transmission gear (73) are meshed and transmitted; the outer wall of the screw rod (732) is sleeved with a driven threaded ring (734) in threaded engagement; a positioning hook (735) is fixed to one side of the outer wall of the driven threaded ring (734); the positioning hook (735) slides on the inner wall of the positioning groove (45) and extends to the outside of the positioning groove (45); the positioning groove (45) abuts against the top of the dynamometer (6).

10. The device for measuring the clamping force of a tool tank in a tool magazine of a machining center according to claim 9, characterized in that: The adjusting key (8) comprises an insert rod (81), a hexagonal block (82) is provided at the center of the top surface of one end of the insert rod (81), the insert rod (81) is inserted into the inner side of the threaded hole (43), the hexagonal block (82) is embedded in the inner side of the hexagonal groove (56), an adjusting ring block (83) is fixed to the middle of the outer wall of one end of the insert rod (81) away from the hexagonal block (82), and a half-ring driving tooth block (84) distributed in an annular manner and equidistantly is fixed to one side of the outer wall of the adjusting ring block (83), the driving tooth block (84) and the first A avoiding tooth block (85) is provided at one end of the fifth gear (726), and the driving tooth block (84) is driven by meshing with the fifth gear (726) through the avoiding tooth block (85). Symmetrical embedded grooves (86) are provided on both sides of one end of the insertion rod (81) connected to the hexagonal block (82), and a driving handle (87) is hinged deep inside the embedded groove (86). A magnetic block (88) is fixed to the inner wall of the end of the driving handle (87) away from the hinge point, and the magnetic block (88) is magnetically adsorbed on the outer wall of the embedded groove (86).

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