A tool length adjustment device and adjustment method

Abstract

The present invention relates to the technical field of machining, and specifically discloses a tool length adjustment device and an adjustment method. The tool length adjustment device includes a tool setting block, a guiding member, a reference member, and a detection mechanism. A tool mounting hole penetrating along the height direction is provided on the tool setting block. The tool mounting hole includes a first hole, a second hole, and a third hole that are sequentially communicated from top to bottom and have gradually decreasing diameters. A tool can be inserted into the tool mounting hole, and the end face of an adjusting screw can abut against the step surface between the second hole and the third hole; the guiding member can extend into the groove of the tool holder and the two can move relative to each other; the reference member can be placed on the tool setting block, and the height of the reference member is L0', and L0 = L0' + H 12 +H 13 ; The detection mechanism includes a height detection member, and the detection end of the height detection member can abut against the highest point of the second shoulder counted from top to bottom of the tool holder. The tool length adjustment device can achieve fast and precise adjustment of the tool length.

Description

Technical Field

[0001] The present invention relates to the technical field of machining, and particularly relates to a tool length adjustment device and an adjustment method. Background Art

[0002] The machining of the fuel injector holes on the cylinder head requires a special-purpose machine tool. To ensure machining accuracy, the length of the tool usually needs to be adjusted when installing the tool on the special-purpose machine tool. As Figure 1 shown, the tool 100 in the prior art includes a tool shank 101, a cutting blade 102, and an adjusting screw 103. Among them, one end of the tool shank 101 is connected to the cutting blade 102, a threaded hole is provided at the other end of the tool shank 101, and the adjusting screw 103 is screwed into the threaded hole of the tool shank 101. The distance between the highest position of the second shoulder (counting from top to bottom) of the tool shank 101 and the bottom end face of the adjusting screw 103 is defined as the tool length L0. When the adjusting screw 103 rotates relative to the tool shank 101, the tool length L0 will change.

[0003] In the prior art, when installing the tool 100 on the special-purpose machine tool, first, taking the positioning end face in the spindle hole at the installation position of the tool 100 as a reference, ensure that the end face of the adjusting screw 103 is in contact with the above-mentioned positioning end face during installation, and use a lateral fixing member to fix the tool shank 101 on the machine tool spindle. After the tool 100 is installed, the operator uses a depth caliper to measure the current length of the tool 100 with the positioning end face as a reference, then processes a product on this machine tool, and then adjusts the tool length according to the machining dimensions of the finished product, that is, the operator uses a screwing tool to make the adjusting screw 103 rotate relative to the tool shank 101. However, this adjustment method is relatively cumbersome, and the operator completely makes fine adjustments based on processing experience. To reduce the rejection rate, the operator usually makes the processed hole a little shallower, so the depth of the hole is out of tolerance, and it can only meet the process technical requirements after multiple adjustments. The time for replacing the tool 100 each time is relatively long, which affects the machining rhythm and increases the labor intensity of the operator.

[0004] Therefore, there is an urgent need to propose a tool length adjustment device to solve the above problems. Summary of the Invention

[0005] The first object of the present invention is to provide a tool length adjustment device, which can achieve rapid and precise adjustment of the tool length, shorten the tool replacement time, reduce the labor intensity of the operator, and adapt to the production rhythm.

[0006] The second object of the present invention is to provide a tool length adjustment method. By applying the above tool length adjustment device, rapid and precise adjustment of the tool length can be achieved, the tool replacement time can be shortened, the labor intensity of the operator can be reduced, and the production rhythm can be adapted.

[0007] As described above, the technical solution adopted by the present invention is as follows:

[0008] The present invention provides a tool length adjustment device for adjusting the tool height L0 of a tool. The tool length adjustment device includes:

[0009] A tool setting block, on which a tool mounting hole penetrating along its height direction is provided. The tool mounting hole includes a first hole, a second hole, and a third hole that are sequentially connected from top to bottom and have gradually decreasing diameters. The tool can be inserted into the tool mounting hole, and the end face of the adjusting screw of the tool can abut against the step surface between the second hole and the third hole;

[0010] A guiding member, which is arranged on the tool setting block. A groove is provided on the tool shank of the tool, and the guiding member can extend into the groove and the two can move relative to each other;

[0011] A reference member, which can be placed on the tool setting block. The height of the reference member is L0', and L0 = L0' + H 12 +H 13 ; where H 12 is the depth of the first hole; H 13 is the depth of the second hole;

[0012] A detection mechanism, including a height detection member. The detection end of the height detection member can abut against the highest point of the second shoulder counted from top to bottom of the tool shank; when the reference member is placed on the tool setting block and the detection end of the height detection member abuts against the end face of the reference member, the index of the height detection member is zero.

[0013] As a preferred solution of the tool length adjustment device provided by the present invention, a tool setting groove is further provided on the side wall of the tool setting block extending along its height direction, and the tool setting groove is communicated with the first hole.

[0014] As a preferred solution of the tool length adjustment device provided by the present invention, a locking hole is further provided on the side wall of the tool setting block extending along its height direction. The guiding member is a locking set screw, and the locking set screw is inserted into the locking hole and can selectively abut against the bottom of the groove.

[0015] As a preferred solution of the tool length adjustment device provided by the present invention, the detection mechanism further includes an adjustment assembly, and the adjustment assembly is configured to adjust the height and / or angle of the height detection member.

[0016] As a preferred solution of the tool length adjustment device provided by the present invention, the adjustment assembly includes:

[0017] An adjustment bracket, which is connected to the tool setting block;

[0018] A height adjusting member, which is adjustably arranged on the adjusting bracket in the vertical direction;

[0019] An angle adjusting member, which is arranged on the height adjusting member, and the height detecting member is adjustably arranged on the angle adjusting member.

[0020] As a preferred solution of the tool length adjusting device provided by the present invention, the height detecting member is a dial indicator.

[0021] To achieve the above object, the present invention also provides a tool length adjusting method. Based on the tool length adjusting device as described above, the tool length adjusting method includes the following steps:

[0022] Step S1: Place the reference member on the tool setting block and perform a zero adjustment operation on the height detecting member;

[0023] Step S2: Remove the reference member, install the tool to be adjusted in the tool installation hole of the tool setting block, make the adjusting screw of the tool abut against the step surface between the second hole and the third hole, and make the guiding member extend into the groove of the tool handle of the tool;

[0024] Step S3: Make the detecting end of the height detecting member abut against the highest point of the second shoulder counted from top to bottom of the tool handle;

[0025] Step S4: Insert the screwing tool from the bottom of the tool setting block into the third hole, and screw the adjusting screw according to the reading of the height detecting member, so that the tool handle moves in the vertical direction until the height detecting member returns to zero.

[0026] As a preferred solution of the tool length adjusting method provided by the present invention, a tool setting groove communicated with the first hole is further arranged on the tool setting block; after the step S4, the following steps are further included:

[0027] Step S5: Make the guiding member abut tightly against the bottom of the groove, insert the tightening tool from the tool setting groove, and tighten the fastening nut on the adjusting screw, so that the end face of the fastening nut abuts against the end face of the tool handle.

[0028] As a preferred solution of the tool length adjusting method provided by the present invention, after the step S5, the following steps are further included:

[0029] Step S6: Loosen the guiding member and make it withdraw from the groove, rotate the tool handle to make the tool rotate relative to the tool setting block, and at the same time observe the reading of the height detecting member;

[0030] Step S7: If the reading range of the height detecting member is within the preset range, remove the tool from the tool setting block;

[0031] Step S8: If the reading range of the height detector exceeds the preset range, repeat Steps S4 to S6 until the reading range of the height detector is within the preset range.

[0032] As a preferred embodiment of the tool length adjustment method provided by the present invention, before Step S1, it further includes:

[0033] Step S0: Install the tool in the tool mounting hole, and use the adjustment component to adjust the preset position of the height detector.

[0034] The beneficial effects of the present invention are:

[0035] The present invention provides a tool length adjustment device. The steps for adjusting the tool length are as follows: 1) Place the reference part on the tool setting block to zero the height detector; 2) Remove the reference part, install the tool to be adjusted in the tool mounting hole of the tool setting block, make the end face of the adjustment screw abut against the step surface between the second hole and the third hole, and make the guiding part extend into the groove of the tool shank; 3) Adjust the height detector so that the detection end of the height detector abuts against the highest point of the second shoulder from the top of the tool shank; 4) The operator inserts the screwing tool from the bottom of the tool setting block into the third hole, and rotates the adjustment screw clockwise or counterclockwise according to the reading of the height detector at this time. The tool shank can move vertically under the guiding action of the guiding part. When the tool shank moves until the height detector returns to zero, the adjustment process of the tool length is completed. This tool length adjustment device has a simple structure and convenient operation, can achieve rapid and precise adjustment of the tool length, shorten the tool change time, reduce the labor intensity of the operator, and adapt to the production rhythm.

[0036] The present invention also provides a tool length adjustment method. By applying the above tool length adjustment device, rapid and precise adjustment of the tool length can be achieved, the tool change time can be shortened, the labor intensity of the operator can be reduced, and the production rhythm can be adapted. Description of the Drawings

[0037] Figure 1 is a schematic structural view of the tool to be adjusted provided by the prior art;

[0038] Figure 2 is a schematic structural view of the tool length adjustment device provided by the embodiment of the present invention;

[0039] Figure 3 is a front perspective view of the tool setting block provided by the embodiment of the present invention;

[0040] Figure 4 is a left sectional view of the tool setting block provided by the embodiment of the present invention;

[0041] Figure 5 It is a schematic structural diagram of a reference part provided by an embodiment of the present invention;

[0042] Figure 6 It is a bottom perspective view of a tool setting block provided by an embodiment of the present invention;

[0043] Figure 7 It is a top perspective view of a tool setting block provided by an embodiment of the present invention;

[0044] Figure 8 It is a partially sectional schematic diagram of a first bracket provided by an embodiment of the present invention;

[0045] Figure 9 It is a schematic structural diagram of a second bracket provided by an embodiment of the present invention.

[0046] In the figure:

[0047] 100 - cutting tool; 101 - tool shank; 1011 - groove; 102 - cutting blade; 103 - adjusting screw;

[0048] 1 - tool setting block; 11 - tool mounting hole; 111 - first hole; 112 - second hole; 113 - third hole; 12 - tool setting groove; 13 - locking hole; 14 - first connecting hole; 15 - second connecting hole;

[0049] 2 - detection mechanism; 21 - adjusting assembly; 211 - adjusting bracket; 2111 - first bracket; 2112 - second bracket; 212 - height adjusting member; 213 - angle adjusting member; 22 - height detecting member;

[0050] 3 - reference part. Detailed implementation manners

[0051] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that for the convenience of description, only parts related to the present invention are shown in the accompanying drawings, rather than all the structures.

[0052] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0053] In the present invention, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0054] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left" and "right" are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0055] This embodiment provides a tool length adjustment device, which is mainly used to adjust the tool length L0 of the tool 100 on a machine tool. Among them, as Figure 1 shown, the tool 100 includes a tool shank 101, a tool blade 102 and an adjusting screw 103. One end of the tool shank 101 is connected to the tool blade 102, and a threaded hole is provided at the other end of the tool shank 101. The adjusting screw 103 is screwed into the threaded hole of the tool shank 101, and the distance between the highest position of the second shoulder (counting from top to bottom) of the tool shank 101 and the bottom end face of the adjusting screw 103 is defined as the tool length L0.

[0056] Figure 2 shows a schematic structural diagram of the tool length adjustment device provided by this embodiment. Figure 3 shows a front perspective view of the tool setting block 1 provided by this embodiment. Figure 4 shows a left sectional view of the tool setting block 1 provided by this embodiment; Figure 5 shows a schematic structural diagram of the reference member 3 provided by this embodiment. As Figures 2 - 5 and in combination with Figure 1As shown in the figure, the tool length adjustment device provided in this embodiment includes a tool setting block 1, a guiding member, a reference member 3, and a detection mechanism 2. Among them, a tool mounting hole 11 penetrating along the height direction is provided on the tool setting block 1. The tool mounting hole 11 includes a first hole 111, a second hole 112, and a third hole 113 that are sequentially connected from top to bottom and have gradually decreasing diameters. The tool 100 can pass through the tool mounting hole 11, and the end face of the adjusting screw 103 can abut against the step surface between the second hole 112 and the third hole 113; the guiding member is arranged on the tool setting block 1, and a groove 1011 is provided on the tool shank 101 of the tool 100. The guiding member can extend into the groove 1011 and the two can move relative to each other; the reference member 3 can be placed on the tool setting block 1, and the height of the reference member 3 is L0', and L0 = L0' + H 12 +H 13 ; where H 12 is the depth of the first hole 111; H 13 is the depth of the second hole 112; the detection mechanism 2 includes a height detection member 22, and the detection end of the height detection member 22 can abut against the highest point of the second shoulder of the tool shank 101 counted from top to bottom; when the reference member 3 is placed on the tool setting block 1 and the detection end of the height detection member 22 abuts against the end face of the reference member 3, the reading of the height detection member 22 is zero.

[0057] The steps for adjusting the tool length L0 by the tool length adjustment device provided in this embodiment are as follows: 1) Place the reference member 3 on the tool setting block 1 to perform a zero adjustment operation on the height detection member 22; 2) Remove the reference member 3, install the tool 100 to be adjusted in the tool mounting hole 11 of the tool setting block 1, make the end face of the adjusting screw 103 abut against the step surface between the second hole 112 and the third hole 113, and make the guiding member extend into the groove 1011 of the tool shank 101; 3) Adjust the height detection member 22 so that the detection end of the height detection member 22 abuts against the highest point of the second shoulder of the tool shank 101 counted from top to bottom; 4) The operator inserts a screwing tool from the bottom of the tool setting block 1 into the third hole 113 and rotates the adjusting screw 103 clockwise or counterclockwise according to the reading of the height detection member 22 at this time. The tool shank 101 can move vertically under the guiding action of the guiding member. When the tool shank 101 moves until the height detection member 22 returns to zero again, the adjustment process of the tool length L0 is completed. This tool length adjustment device has a simple structure and is convenient to operate. It can quickly and accurately adjust the tool length L0, shorten the replacement time of the tool 100, reduce the labor intensity of the operator, and adapt to the production rhythm. Among them, the screwing tool specifically refers to an internal hexagonal wrench.

[0058] It should be noted that the reference part 3 is a cylindrical rod with a diameter of 32mm and a height of 128.88mm. When the height detection part 22 is zeroed, the reference part 3 only needs to be placed on the tool holder 1, and there is no need to fix the reference part 3 to the tool holder 1. In addition, the reference part 3 can be placed above the tool mounting hole 11 to ensure the accuracy of the adjustment. The specific steps for processing the reference part 3 are as follows: select a No. 45 steel bar with a diameter of 35.0mm and a height of 150mm, process a cylindrical bar with a diameter of 32.0mm and a height of 29mm on a lathe, and then grind the cylindrical bar to a standard height of 128.88mm to form the reference part 3.

[0059] After the tool 100 has completed the adjustment of the tool length L0 on the tool length adjustment device, it needs to be removed from the tool holder 1. However, during the process of removing the tool 100, if there is a slight shake, the position of the adjusting screw 103 and the tool handle 101 may change, affecting the tool length L0. Therefore, before installing the tool 100 to be adjusted on the tool holder 1, it is necessary to first screw a fastening nut on the adjusting screw 103, and then screw the adjusting screw 103 into the threaded hole of the tool handle 101, but it is necessary to ensure that the end face of the fastening nut cannot abut against the end face of the tool handle 101, so that the adjusting screw 103 can rotate relative to the tool handle 101; after the tool 100 has completed the adjustment of the tool length L0 on the tool length adjustment device, the operator also needs to tighten the fastening nut so that the end face of the fastening nut abuts against the end face of the tool handle 101, thereby fixing the relative position of the adjusting screw 103 and the tool handle 101.

[0060] In order to facilitate the operator to tighten the fastening nut, a tool groove 12 is also provided on the side wall extending along the height direction of the tool seat 1, and the tool groove 12 is connected with the first hole 111. The functions of the tool groove 12 are: first, when the tool 100 to be adjusted is installed in the tool installation hole 11, the operator can observe whether it is installed in place from the tool groove 12 to ensure that the end face of the adjustment screw 103 abuts against the step surface between the second hole 112 and the third hole 113; second, when the tool 100 completes the adjustment of the tool length L0 on the tool length adjustment device, the operator can extend the tightening tool into the tool groove 12 to tighten the fastening nut. Among them, the tightening tool is specifically a fork wrench.

[0061] Optionally, in this embodiment, the tool groove 12 is not a through groove, which can ensure the support strength of the tool holder 1 under the premise of achieving the above functions; in addition, if the tool groove 12 is a through groove, after the tool 100 is installed on the tool holder 1, the height H of the tool holder 1 close to the tool groove 12 is 11 May change, thus affecting the adjustment accuracy.

[0062] To prevent the operator from driving the tool holder 101 and the adjusting screw 103 to rotate synchronously when screwing the fastening nut, a locking hole 13 is further provided on the side wall of the tool setting base 1 extending along its height direction. The guiding member is a locking set screw, and the locking set screw is inserted into the locking hole 13 and can selectively abut against the bottom of the groove 1011 of the tool holder 101. It should be noted that when the operator uses a screwing tool to screw the adjusting screw 103 to move the tool holder 101 in the vertical direction, the locking set screw only extends into the groove 1011 of the tool holder 101 to prevent the tool holder 101 from rotating synchronously with the adjusting screw 103; when the operator screws the fastening nut, the locking set screw abuts against the bottom of the groove 1011 of the tool holder 101 to prevent the tool holder 101 and the adjusting screw 103 from rotating synchronously with the fastening nut.

[0063] Figure 6 The bottom perspective view of the tool setting base 1 provided in this embodiment is shown. As Figure 6 shown, at least one first connection hole 14 is further provided at the bottom of the tool setting base 1. The connecting member is inserted into the corresponding first connection hole 14 and fixed to the base of the machine tool, so as to fix the tool length adjustment device. Of course, in other embodiments, the tool length adjustment device can also be fixed to other structures, as long as it is convenient for the screwing tool to extend into the third hole 113 to screw the adjusting screw 103 and for the tightening tool to extend into the tool setting groove 12 to screw the fastening nut. This embodiment does not limit this.

[0064] Figure 7 The top perspective view of the tool setting base 1 provided in this embodiment is shown. Figure 8 The partial cross-sectional schematic view of the first support 2111 provided in this embodiment is shown. Figure 9 The structural schematic view of the second support 2112 provided in this embodiment is shown. As Figures 7 - 8 and in combination with Figure 2 shown, the detection mechanism 2 further includes an adjustment assembly 21, and the adjustment assembly 21 is configured to adjust the height and / or angle of the height detection member 22. Specifically, the adjustment assembly 21 includes an adjustment bracket 211, a height adjustment member 212, and an angle adjustment member 213. The adjustment bracket 211 is connected to the tool setting base 1; the height adjustment member 212 is vertically adjustably arranged on the adjustment bracket 211; the angle adjustment member 213 is arranged on the height adjustment member 212, and the height detection member 22 is angle adjustably arranged on the angle adjustment member 213.

[0065] Optionally, the height adjuster 212 is a clamp which is sleeved on the adjustment bracket 211. When the operator loosens the fastener of the clamp, the clamp can move up and down along the axis direction of the adjustment bracket 211; after the relative position between the clamp and the adjustment bracket 211 is adjusted, the operator then tightens the fastener. The clamp is a prior art, and the specific structure of the clamp is not limited in this embodiment.

[0066] Optionally, the angle adjuster 213 can be an adjustment post with external threads provided at one end. The adjustment post is threadedly connected to the height adjuster 212. An adjustment hole is provided in the middle of the adjustment post, and the mounting end of the height detector 22 is fixed in the adjustment hole. By rotating the mounting end of the height detector 22, the operator can make the adjustment post rotate relative to the angle adjuster 213, thereby realizing the adjustment of the angle of the height detector 22. This setting can also keep the angle adjuster 213 fixed to the height adjuster 212 at any position.

[0067] Optionally, the height detector 22 is a dial indicator, which is convenient to pick up, easy to install, and has a relatively low manufacturing cost.

[0068] Furthermore, a second connection hole 15 is also provided on the tool setting block 1. The adjustment bracket 211 includes a first bracket 2111 and a second bracket 2112 which are connected. External threads are provided at the bottom of the first support frame 2111, and the first support frame 2111 is screwed into the second connection hole 15.

[0069] Furthermore, as Figures 8 - 9 shown, bearing seat holes and bracket mounting holes which are vertically distributed and communicate with each other are provided at the top of the first bracket 2111. The aperture of the bearing seat hole is larger than that of the bracket mounting hole. The bearing seat hole is used for installing a bearing; the second bracket 2112 is a stepped shaft, and the outer diameter of the small end of the second bracket 2112 is adapted to the aperture of the bracket mounting hole. The second bracket 2112 is connected to the first bracket 2111 through a bearing to realize the relative rotation between the second bracket 2112 and the first bracket 2111. The operator can rotate the second bracket 2112 to make the height detector 22 avoid the reference part 3 or the tool 100, so as to facilitate the picking and placing of the reference part 3 or the tool 100.

[0070] It should be noted that the processing steps of the first bracket 2111 and the second bracket 2112 can be carried out according to the dimensions of the fitting structures such as the tool setting block 1 and the bearing according to the requirements of the drawing. This embodiment does not limit this.

[0071] Further, in this embodiment, the specific processing steps of the tool holder 1 are as follows: 1) Select an aluminum block with dimensions of 102 mm × 102 mm × 60 mm and install it on the machining center; 2) Use a face milling cutter with a diameter of 80 mm and a drill bit with a diameter of 12.0 mm to machine the aluminum block in step 1) into a finished product with dimensions of 100 mm × 100 mm × 58 mm, and perform chamfering at the same time, where, H 11 = 58 mm; 3) Machine the tool mounting hole 11. First, select a drill bit with a diameter of 7.0 mm to drill through; then select a vertical milling cutter with a diameter of 12.0 mm to rough machine the first hole 111 by interpolation. The diameter of the first hole 111 is 27.50 mm and the depth is 46.2 mm. Then select a fine boring cutter with a diameter of 28.01 mm to finely machine the first hole 111 to make its diameter reach 28.016 mm and the depth is 46.0 mm, that is, H 12 = 46 mm; Finally, select a vertical milling cutter with a diameter of 20.0 mm to machine the second hole 112. The diameter of the second hole 112 is 20.0 mm and the depth is 48.50 mm, thereby forming the second hole 112 and the third hole 113, that is, H 13 = 2.50 mm, and the diameter of the third hole 113 is 7.0 mm; 4) Machine the second connection hole 15. Select a drill bit with a diameter of 8.5 mm to rough machine it to a diameter of 8.5 mm and a depth of 25.0 mm; then select an M10×1.5 tap to finely machine it so that the diameter of the second connection hole 15 is 10.0 mm and the depth is 20.0 mm; 5) After re-clamping, machine the locking hole 13. Select a drill bit with a diameter of 8.5 mm to rough machine it to a diameter of 8.5 mm and a depth of 15.0 mm and drill through, that is, make it communicate with the first hole 111; then select an M10×1.5 tap to finely machine it to a diameter of 10.0 mm and ream through; 6) Machine the tool setting groove 12. Select a vertical milling cutter with a diameter of 12.0 mm and machine it by interpolation to make its groove width 12.0 mm and the depth 41.0 mm; 7) After re-clamping, machine the first connection hole 14. Select a drill bit with a diameter of 8.5 mm to rough machine it to a diameter of 8.5 mm and a depth of 25.0 mm; then select an M10×1.5 tap to finely machine it to a diameter of 10.0 mm and a depth of 20.0 mm.

[0072] Of course, the above dimensions are not limitations on the tool length adjustment device provided in this embodiment. The specific dimensions can still be adjusted according to the actual situation, and this embodiment does not make any limitations.

[0073] This embodiment also provides a tool length adjustment method based on the above tool length adjustment device. The tool length adjustment method includes the following steps:

[0074] Step S1: Place the reference part 3 on the tool holder 1 and perform a zeroing operation on the height detection part 22;

[0075] Step S2: Remove the reference part 3, install the tool 100 to be adjusted in the tool mounting hole 11 of the tool setting block 1, make the adjusting screw 103 of the tool 100 abut against the step surface between the second hole 112 and the third hole 113, and make the guiding part extend into the groove 1011 of the tool shank 101 of the tool 100;

[0076] Step S3: Make the detection end of the height detection part 22 abut against the highest point of the second shoulder of the tool shank 101 counted from top to bottom;

[0077] Step S4: Insert the screwing tool into the third hole 113 from the bottom of the tool setting block 1, and screw the adjusting screw 103 according to the reading of the height detection part 22, so that the tool shank 101 moves vertically until the height detection part 22 returns to zero.

[0078] By applying the above tool length adjustment device, this tool length adjustment method can achieve rapid and precise adjustment of the tool length, shorten the replacement time of the tool 100, reduce the labor intensity of the operator, and adapt to the production rhythm.

[0079] Further, before step S1, it further includes:

[0080] Step S0: Install the tool 100 in the tool mounting hole 11, and adjust the preset position of the height detection part 22 by using the adjustment assembly 21.

[0081] First install the tool 100 to be adjusted in the tool mounting hole 11, and the approximate position of the height detection part 22 can be adjusted first to select a dial indicator within the corresponding range, so as to improve the adjustment accuracy.

[0082] Further, after step S4, it further includes:

[0083] Step S5: Make the guiding part abut against the bottom of the groove 1011, insert the tightening tool from the tool setting groove 12, and tighten the fastening nut on the adjusting screw 103 so that the end face of the fastening nut abuts against the end face of the tool shank 101.

[0084] After the tool 100 completes the adjustment of the tool length L0 on this tool length adjustment device, the operator tightens the fastening nut so that the end face of the fastening nut abuts against the end face of the tool shank 101, thereby fixing the relative position of the adjusting screw 103 and the tool shank 101, preventing the relative displacement of the adjusting screw 103 and the tool shank 101 due to shaking during the process of the operator removing the adjusted tool 100 from the tool setting block 1, and affecting the adjustment accuracy.

[0085] Further, after step S5, it further includes:

[0086] Step S6: Loosen the guiding member and let it withdraw from the groove 1011, rotate the tool shank 101 to make the tool 100 rotate relative to the tool setting block 1, and at the same time observe the reading of the height detection member 22;

[0087] Step S7: If the reading range of the height detection member 22 is within the preset range, remove the tool 100 from the tool setting block 1;

[0088] Step S8: If the reading range of the height detection member 22 exceeds the preset range, repeat Step S4 to Step S6 until the reading range of the height detection member 22 is within the preset range.

[0089] By repeatedly operating Step S4 to Step S6, the length L0 of the tool can be calibrated to ensure that the height tolerance of all the cutting blades 102 mounted on the tool shank 101 is ±0.02 mm.

[0090] The tool length adjustment method provided in this embodiment can achieve fast and accurate adjustment of the tool length L0, improve the machining quality and efficiency, reduce the labor intensity of the operator, and through experimental verification, this adjustment method is reliable, practical, and the machining accuracy is stable, which can meet the actual production requirements.

[0091] The above embodiments only illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, there are various changes and modifications to the present invention, and these changes and modifications all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A tool length adjustment device for adjusting the tool height L0 of a tool (100), characterized in that, The tool (100) includes a tool shank (101), a cutting blade (102) and an adjusting screw (103). One end of the tool shank (101) is connected to the cutting blade (102). A threaded hole is provided at the other end of the tool shank (101). The adjusting screw (103) is screwed into the threaded hole of the tool shank (101). The distance between the highest position of the second shoulder of the tool shank (101) and the bottom end face of the adjusting screw (103) is the tool length L0. The tool length adjusting device includes: A tool setting block (1). A tool mounting hole (11) penetrating along its height direction is provided on the tool setting block (1). The tool mounting hole (11) includes a first hole (111), a second hole (112) and a third hole (113) which are connected in sequence from top to bottom and the aperture of which gradually decreases. The tool (100) can pass through the tool mounting hole (11). The end face of the adjusting screw (103) of the tool (100) can abut against the step surface between the second hole (112) and the third hole (113). A guiding member is provided on the tool setting block (1). A groove (1011) is provided on the tool shank (101) of the tool (100). The guiding member can extend into the groove (1011) and the two can move relative to each other. The reference part (3) can be placed on the tool setting block (1), and the height of the reference part (3) is L0', where L0 = L0' + H 12 +H 13 ; where H 12 is the depth of the first hole (111); H 13 is the depth of the second hole (112); A detection mechanism (2) includes a height detection member (22). The detection end of the height detection member (22) can abut against the highest position of the second shoulder of the tool shank (101) counted from top to bottom. When the reference member (3) is placed on the tool setting block (1) and the detection end of the height detection member (22) abuts against the end face of the reference member (3), the reading of the height detection member (22) is zero.

2. The tool length adjustment device according to claim 1, characterized in that, A tool setting groove (12) is further provided on the side wall of the tool setting block (1) extending along its height direction. The tool setting groove (12) is communicated with the first hole (111).

3. The tool length adjustment device according to claim 1, characterized in that, A locking hole (13) is further provided on the side wall of the tool setting block (1) extending along its height direction. The guiding member is a locking set screw which passes through the locking hole (13) and can selectively press against the bottom of the groove (1011).

4. The tool length adjustment device according to claim 1, characterized in that, The detection mechanism (2) further includes an adjusting assembly (21). The adjusting assembly (21) is configured to adjust the height and / or angle of the height detection member (22).

5. The tool length adjustment device according to claim 4, characterized in that The adjusting assembly (21) includes: An adjusting bracket (211) connected to the tool setting block (1). A height adjusting member (212) adjustably arranged on the adjusting bracket (211) in the vertical direction. An angle adjusting member (213) is provided on the height adjusting member (212). The height detection member (22) is arranged on the angle adjusting member (213) with adjustable angle.

6. The tool length adjustment device according to any one of claims 1-5, characterized in that The height detection member (22) is a dial indicator.

7. A tool length adjustment method, based on the tool length adjustment device according to any one of claims 1-6, characterized in that The tool length adjusting method includes the following steps: Step S1: Place the reference member (3) on the tool setting block (1) and perform a zeroing operation on the height detection member (22). Step S2: Remove the reference part (3), install the tool (100) to be adjusted into the tool mounting hole (11) of the tool setting block (1), make the adjusting screw (103) of the tool (100) abut against the step surface between the second hole (112) and the third hole (113), and make the guiding part extend into the groove (1011) of the tool shank (101) of the tool (100); Step S3: Make the detection end of the height detection part (22) abut against the highest point of the second shoulder from top to bottom of the tool shank (101); Step S4: Insert the screwing tool into the third hole (113) from the bottom of the tool setting block (1), and screw the adjusting screw (103) according to the reading of the height detection part (22) so that the tool shank (101) moves vertically until the height detection part (22) returns to zero; 8. The tool length adjustment method according to claim 7, characterized in that, A tool setting groove (12) communicating with the first hole (111) is further provided on the tool setting block (1); After the step S4, it further includes: Step S5: Make the guiding part tightly abut against the bottom of the groove (1011), insert the tightening tool from the tool setting groove (12), and tighten the fastening nut on the adjusting screw (103) so that the end face of the fastening nut abuts against the end face of the tool shank (101); 9. The tool length adjustment method according to claim 8, wherein, After the step S5, it further includes: Step S6: Loosen the guiding part and make it withdraw from the groove (1011), rotate the tool shank (101) to make the tool (100) rotate relative to the tool setting block (1), and at the same time observe the reading of the height detection part (22); Step S7: If the reading range of the height detection part (22) is within the preset range, remove the tool (100) from the tool setting block (1); Step S8: If the reading range of the height detection part (22) exceeds the preset range, repeat steps S4 to S6 until the reading range of the height detection part (22) is within the preset range; 10. The tool length adjustment method according to claim 7, characterized in that, Before the step S1, it further includes: Step S0: Install the tool (100) into the tool mounting hole (11), and adjust the preset position of the height detection part (22) by using the adjusting component (21).

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