Tool coupling

Abstract

A tool coupling extends along a longitudinal axis and has a first member, a second member, and a clamp for fastening the first member to the second member. The first member has a male clamping portion, the second member has a female clamping portion, and the clamp is located in an inner cavity of the second member. The male clamping portion has a first abutment region located axially behind a first plane perpendicular to the longitudinal axis, the inner cavity has a second abutment region located axially in front of the first plane, and the first and second abutment regions face towards the first plane. In a fastened state, a clamp first engagement region of the clamp is in clamping contact with the first abutment region of the male clamping portion, and a clamp second engagement region of the clamp is in clamping contact with the second abutment region of the inner cavity.

Description

Technical Field

[0001] The present invention relates to a tool connector for use generally in metal cutting processes, and particularly to a tool connector for turning operations. Background Technology

[0002] In the field of cutting tools used in turning operations, there are many instances of tool connectors. In some instances, the cutting blade is directly connected to the tool holder, and in others, the tool adapter (which houses the cutting blade) is connected to the tool shank.

[0003] US 5,873,682 discloses a tool retainer including a body having a channel formed therein for receiving fingers extending from a head. The fingers are secured within the channel by an assembly screw that allows the head to move relative to the body between a retracted position and an extended position. When the head is in its extended position, the head is allowed to pivot relative to the body; however, when the head is in its retracted position, a pair of shoulders on the body engage a pair of notches on the head, thereby preventing pivoting of the head. A locking screw is also provided to lock the head to the body. The locking screw is designed such that when the locking screw is tensioned, the head advances against the body, thus providing a defined, known position to the blade whenever the head moves.

[0004] US 6,270,293 B2 discloses a device for releasably retaining a tool holder, comprising a tool support member having a forward-facing surface, an opening along a longitudinal axis, and a passage. The opening intersects with and extends rearward from the forward-facing surface for receiving the tool holder, and the passage extends through the tool support member and intersects the longitudinal axis. An actuating bolt extends through the tool support member within the passage and is reciprocating between a locked position and a released position relative to the longitudinal axis along a radial axis for locking a shank into or ejecting the shank from the tool support member. The actuating bolt has a locking segment for abutting against and rearwardly advancing a locking surface of the shank of the tool holder to lock the tool holder within the tool support member.

[0005] EP 3292931 A1 discloses a cutting tool having a base retainer and an interchangeable head that carries a cutting edge and has a pin that inserts into a corresponding recess at one end of the base retainer. Clamping jaws attached to the side of the base retainer clamp the pin in the recess by means of base retainer screws. The pin includes at least one support surface for receiving a pressure surface provided on the clamping jaws.

[0006] The purpose of this invention is to provide an improved tool connector.

[0007] Another object of the present invention is to provide a tool connector with a highly robust and stable clamping structure.

[0008] Another object of the present invention is to provide a tool connector with a very compact clamping device.

[0009] Another object of the present invention is to provide a tool connector suitable for use in Swiss turning operations. Summary of the Invention

[0010] According to the present invention, a tool connector is provided, extending along a longitudinal axis in a forward to rearward direction, and having a first plane perpendicular to the longitudinal axis and a second plane including the longitudinal axis and transverse to the first plane, the second plane having an upper side defining the tool connector in an upward direction and a lower side opposite to the upper side defining the tool connector in a downward direction, the tool connector comprising:

[0011] A first component, a second component, and a clamp for fastening the first component to the second component.

[0012] The first component has a first body portion and a male clamping portion extending in a rearward direction from the rear mating end of the first body portion.

[0013] The second component has a second body portion, a female clamping portion, and an inner cavity. The female clamping portion opens toward the front mating end of the second body portion, and the inner cavity communicates with the female clamping portion.

[0014] The clamp is located in the inner cavity and has a front engagement portion and a rear drive portion. The front engagement portion has a first engagement area and a second engagement area.

[0015] in:

[0016] The male clamping portion occupies the female clamping portion and has a first adjacent region located axially behind the first plane;

[0017] The inner cavity has a second adjacent region located axially in front of the first plane, and the second adjacent region is located on the upper side of the second plane;

[0018] Each of the first and second adjacent regions faces the first plane; and

[0019] With the tool connector in the tightened state:

[0020] The rear mating surface of the rear mating end is in clamping contact with the front mating surface of the front mating end;

[0021] The first engaging region of the clamp makes clamping contact with the first adjacent region of the male clamping portion; and

[0022] The second engagement area of ​​the clamp is in clamping contact with the second adjacent area of ​​the inner cavity. Attached Figure Description

[0023] For better understanding, the invention will now be described by way of example only with reference to the accompanying drawings, in which chain-like dashed lines denote the cutoff boundaries of partial views of components, and in these drawings:

[0024] Figure 1 A perspective view of a tool connector according to some embodiments of the present invention;

[0025] Figure 2 for Figure 1 An exploded perspective view of the tool connector shown in the image;

[0026] Figure 3 for Figure 1 and Figure 2 A perspective view of the first component of the tool connector shown in the figure;

[0027] Figure 4 for Figure 3 The image shows an end view of the first component, with details hidden.

[0028] Figure 5 for Figure 1 and Figure 2 A perspective view of the second component of the tool connector shown in the image;

[0029] Figure 6 for Figure 5 The image shows an end view of the second component, with details hidden.

[0030] Figure 7 for Figure 1 and Figure 2 A perspective view of the clamp of the tool connector shown in the figure;

[0031] Figure 8 for Figure 7 The image shows a side view of the fixture, with details hidden.

[0032] Figure 9 for Figure 1 and Figure 2 The tool connector shown in the image is a top view, with details hidden.

[0033] Figure 10a For a fastened state, cut along line XX, Figure 9 The cross-sectional view of the tool connector shown in the figure;

[0034] Figure 10b for Figure 10a Detailed view of the tool connector shown in the image;

[0035] Figure 11 For intercepting along line XI-XI, Figure 10a The cross-sectional view of the tool connector shown in the figure;

[0036] Figure 12 For those in a fastened state Figure 1 and Figure 2 The tool connector shown in the image has its side panel removed.

[0037] Figure 13a For the section that is in the loosened state, intercepted along line XIII-XIII, Figure 9 The cross-sectional view of the tool connector shown in the figure; and

[0038] Figure 13b for Figure 13a The tool connector is shown in detail. Detailed Implementation

[0039] like Figure 1 and Figure 2 As shown, the present invention relates to a tool connector 20 extending along a longitudinal axis A1 in a forward to backward direction DF, DR, which includes a first member 22 (front member), a second member 24 (rear member), and a clamp 26 for fastening the first member 22 to the second member 24.

[0040] In some embodiments of the invention, the second component 24 and the clamp 26 may be made of tool steel.

[0041] Furthermore, in some embodiments of the invention, the second component 24 and the fixture 26 may be produced by means of additive manufacturing.

[0042] like Figures 1 to 4 As shown, the first component 22 has a first body portion 28 and a male clamping portion 30, the male clamping portion 30 extending in a rearward direction DR from the rear mating end 32 of the first body portion 28.

[0043] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the second member 24 has a second body portion 34, a female clamping portion 36 and an inner cavity 38, and the female clamping portion 36 opens toward the front mating end 40 of the second body portion 34, while the inner cavity 38 communicates with the female clamping portion 36.

[0044] like Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, the clamp 26 is located in the cavity 38 and has a clamp front engagement portion 42 and a clamp rear drive portion 44.

[0045] In some embodiments of the invention, the rear drive portion 44 of the clamp may be positioned distal to the front engagement portion 42 of the clamp.

[0046] In some embodiments of the invention, the clamp 26 may have an integral, single-piece structure.

[0047] like Figures 9 to 12 As shown, during the assembly of the tool connector 20, the male clamping portion 30 occupies the female clamping portion 36, the first adjacent region 46 of the male clamping portion 30 is located axially behind the first plane P1 perpendicular to the longitudinal axis A1, and the second adjacent region 48 of the inner cavity 38 is located axially in front of the first plane P1.

[0048] In some embodiments of the present invention, the first plane P1 passes through the female clamping portion 36 and the inner cavity 38.

[0049] like Figure 10b and Figure 12 As shown, each of the first adjacent region 46 and the second adjacent region 48 faces the first plane P1.

[0050] It should be recognized that the term "facing toward..." as used throughout the specification and claims means that the surface area is at least partially facing the plane, and does not require that the surface area be perpendicular to the plane.

[0051] In some embodiments of the invention, the male clamping portion 30 may include a first undercut 50 relative to the forward direction DF, and a first abutment region 46 may extend along the first undercut 50. Based on the first undercut 50, the rearward-facing male clamping portion 30 includes a male hook 31 that protrudes in the rearward direction DR within the tool connector 20.

[0052] It should be recognized that the term “undercut” used throughout the specification and claims refers to a groove or recess in which a straight line extending in a certain direction from a given area away from the groove or recess intersects another area of ​​the same groove or recess.

[0053] In some embodiments of the invention, the first adjacent region 46 may extend between the opposing first outer surface 52a and second outer surface 52b of the male clamping portion 30.

[0054] Furthermore, in some embodiments of the present invention, the first adjacent region 46 may intersect with the first outer surface 52a and the second outer surface 52b.

[0055] like Figure 4 As shown, the first outer surface 52a and the second outer surface 52b may be planar.

[0056] In some embodiments of the invention, the cavity 38 may include a second undercut 54 with respect to a rearward direction DR, and a second adjacent region 48 may extend along the second undercut 54.

[0057] Furthermore, in some embodiments of the invention, the second adjacent region 48 may extend between the first inner surface 56a and the second inner surface 56b of the cavity 38, although it should be understood that the second adjacent region 48 may not extend the entire distance between the first inner surface 56a and the second inner surface 56b.

[0058] The tool connector 20 has a second plane P2, which includes a longitudinal axis A1 and is transverse to the first plane P1. The second plane P2 has an upper side SU defining an upward direction DU of the tool connector 20, and a lower side SL opposite to the upper side SU and defining a downward direction DD of the tool connector 20. The upward direction DU and the downward direction DD are opposite to each other and perpendicular to the second plane P2.

[0059] In some embodiments of the present invention, the second plane P2 may be perpendicular to the first plane P1.

[0060] like Figure 10a , Figure 10b and Figure 12 As shown, the second adjacent region 48 is located on the upper side SU of the second plane P2.

[0061] In some embodiments of the present invention, the second adjacent region 48 may face the second plane P2.

[0062] Furthermore, in some embodiments of the present invention, the first adjacent region 46 may be located on the lower side S1 of the second plane P2.

[0063] Furthermore, in some embodiments of the present invention, the first adjacent region 46 may face toward the second plane P2.

[0064] Figure 10 to Figure 12 As shown, in the tightened state of the tool connector 20:

[0065] The rear mating surface 58 of the rear mating end 32 of the first component 22 is in clamping contact with the front mating surface 60 of the front mating end 40 of the second component 24.

[0066] The first engagement area 62 of the clamping front engagement portion 42 makes clamping contact with the first adjacent area 46 of the male clamping portion; and

[0067] The second engagement area 64 of the clamp front engagement portion 42 is in clamping contact with the second adjacent area 48 of the inner cavity.

[0068] It should be recognized that, in the fastened state of the tool connector 20, the front engagement portion 42 of the clamp can partially occupy the female clamping portion 36.

[0069] like Figure 9 and Figure 10a As shown, the rear mating surface 58 can define a third plane P3, which is parallel to the first plane P1 and axially in front of the first plane P1.

[0070] In embodiments of the present invention, wherein the first adjacent region 46 and the second adjacent region 48 are respectively disposed on the opposite lower side SL and upper side SU of the second plane P2, it should be understood that any risk of the clamp front engagement portion 42 getting stuck or obstructed can be minimized.

[0071] like Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, the clamp 26 may have opposing first lateral surfaces 66a and second lateral surfaces 66b, and the clamp first engagement region 62 and the clamp second engagement region 64 may extend between the first lateral surface 66a and the second lateral surface 66b.

[0072] In some embodiments of the present invention, the second engagement region 64 of the clamp may intersect with the first lateral surface 66a and the second lateral surface 66b.

[0073] Furthermore, in some embodiments of the present invention, the first clamping side surface 66a and the second clamping side surface 66b may be planar.

[0074] like Figure 10a , Figure 10b and Figure 12 As shown, the lateral axis A2 is defined by the intersection of the first plane P1 and the second plane P2.

[0075] In some embodiments of the present invention, the first adjacent region 46 and the second adjacent region 48 may extend along the direction of the lateral axis A2.

[0076] like Figure 4 and Figure 9 As shown, the first adjacent region 46 may have a first lateral range EL1, and in some embodiments of the invention, the first engagement region 62 of the clamp may extend correspondingly along the first lateral range EL1.

[0077] In an embodiment of the present invention, wherein the first adjacent region 46 intersects with the first outer surface 52a and the second outer surface 52b of the male clamping portion, it should be understood that the first lateral range EL1 may correspond to the width of the male clamping portion 30 (i.e., the distance between the first outer surface 52a and the second outer surface 52b).

[0078] like Figure 6 and Figure 9 As shown, the second adjacent region 48 may have a second lateral range EL2, and in some embodiments of the invention, the second engagement region 64 of the clamp may extend correspondingly along the second lateral range EL2.

[0079] In an embodiment of the present invention, wherein the second engagement region 64 of the clamp intersects with the first lateral surface 66a and the second lateral surface 66b of the clamp, it should be understood that the second lateral range EL2 may correspond to the width of the clamp 26 (i.e., the distance between the first lateral surface 66a and the second lateral surface 66b).

[0080] In some embodiments of the present invention, the second lateral range EL2 may be greater than the first lateral range EL1, that is, EL2>EL1.

[0081] Furthermore, in some embodiments of the present invention, the first adjacent region 46 and the second adjacent region 48 may extend parallel to each other along the direction of the lateral axis A2.

[0082] In embodiments of the present invention, wherein the first adjacent region 46 and the second adjacent region 48 extend parallel to each other along the direction of the lateral axis A2, it should be recognized that a highly stable clamping structure can be achieved.

[0083] like Figure 9 , Figure 10a and Figure 10b As shown, a fourth plane P4, which is perpendicular to the first plane P1 and the second plane P2, may intersect with the first adjacent region 46 and the second adjacent region 48.

[0084] In some embodiments of the present invention, the fourth plane P4 may include a longitudinal axis A1.

[0085] like Figure 10a and Figure 10b As shown in the cross-sectional view taken along the fourth plane P4, the first engagement region 62 of the clamp can clamp and contact the first adjacent region 46, and the second engagement region 64 of the clamp can clamp and contact the second adjacent region 48.

[0086] In some embodiments of the invention, the first adjacent region 46 and the second adjacent region 48 may exhibit mirror symmetry with respect to the fourth plane P4.

[0087] Furthermore, in some embodiments of the invention, the clamp front engagement portion 42 may exhibit mirror symmetry with respect to the fourth plane P4.

[0088] In embodiments of the present invention, wherein the first adjacent region 46 and the second adjacent region 48 exhibit mirror symmetry about the fourth plane P4, it should be recognized that a highly stable clamping structure can be achieved.

[0089] like Figure 10b As shown in the cross-sectional view taken along the fourth plane P4, the first adjacent region 46 and the second adjacent region 48 have a first tangent TL1 and a second tangent TL2, respectively, and in some embodiments of the invention, the first tangent TL1 and the second tangent TL2 may fork in the upward direction DU.

[0090] In the embodiments of the present invention, where the first tangent TL1 and the second tangent TL2 bifurcate in the upward direction DU, it should be understood that the clamp first engagement region 62 and the clamp second engagement region 64 of the clamp engagement portion respectively form wedge shapes corresponding to the first adjacent region 46 and the second adjacent region 48.

[0091] like Figure 10b As shown in the cross-sectional view taken along the fourth plane P4, the first tangent TL1 can form an external acute angle first adjacent angle β1 with the first plane P1.

[0092] In some embodiments of the present invention, the first adjacency angle β1 may be less than 45 degrees, that is, β1 < 45°.

[0093] In addition, such as Figure 10b As shown in the cross-sectional view taken along the fourth plane P4, the second tangent TL2 can form an external acute angle second adjacent angle β2 with the first plane P1.

[0094] In some embodiments of the present invention, the second adjacency angle β2 may be less than 45 degrees, that is, β2 < 45°.

[0095] It should be recognized that the term "external adjacent angle" used throughout the specification and claims refers to the angle between the adjacent area and a plane measured outside the component on which the adjacent area is formed.

[0096] like Figure 10a , Figure 10b and Figure 12 As shown, the cavity 38 may have a third adjacent region 68, which is located axially behind the first plane P1.

[0097] In some embodiments of the present invention, the third adjacent region 68 may be located axially behind the first adjacent region 46.

[0098] Furthermore, in some embodiments of the present invention, the third adjacent region 68 may be spaced apart from the second adjacent region 48.

[0099] Furthermore, in some embodiments of the present invention, the third adjacent region 68 may extend along the direction of the lateral axis A2.

[0100] With the tool connector 20 in a tightened state, the clamping third engagement area 70 of the clamping front engagement portion 42 can clamp and contact the third adjacent area 68 of the inner cavity.

[0101] In some embodiments of the invention, the third engagement region 70 of the clamp may extend between the first lateral surface 66a and the second lateral surface 66b of the clamp.

[0102] like Figure 9 , Figure 10a and Figure 10b As shown, the fourth plane P4 may intersect with the third adjacent region 68.

[0103] like Figure 10a and Figure 10b As shown in the cross-sectional view taken along the fourth plane P4, the third engagement region 70 of the clamp can clamp into contact with the third adjacent region 68.

[0104] In some embodiments of the invention, the third adjacent region 68 may exhibit mirror symmetry with respect to the fourth plane P4.

[0105] like Figures 1 to 3 and Figure 10a As shown, the first body portion 28 may have a front cut end 72, which is axially opposite to the rear mating end 32 along the longitudinal axis A1.

[0106] In some embodiments of the invention, the front cutting end 72 may have a blade receiving recess 74, and a cutting blade 76 having at least one cutting edge 78 may be removably secured in the blade receiving recess 74 by means of a blade screw 79.

[0107] Furthermore, in some embodiments of the present invention, the first component 22 may be made of tool steel.

[0108] Furthermore, in some embodiments of the invention, the first component 22 may be produced by additive manufacturing.

[0109] Furthermore, in some embodiments of the invention, the cutting blade 76 may be manufactured by forming, pressing and sintering a cemented carbide (such as tungsten carbide), and may be coated or uncoated.

[0110] For embodiments of the invention with a front cutting end 72, the tool connector 20 can be described as a cutting tool 80.

[0111] In some embodiments of the present invention, the cutting tool 80 can be used in turning operations.

[0112] like Figure 5 , Figure 6 , Figure 9 and Figure 11 As shown, the second member 24 may have opposing first peripheral side surfaces 82a and second peripheral side surfaces 82b.

[0113] In some embodiments of the present invention, such as Figure 5 As shown, the first outer peripheral side surface 82a may include a recessed bottom plate surface 84, and the inner cavity 38 may open toward the bottom plate surface 84 to form a side opening 86.

[0114] In an embodiment of the invention, wherein the inner cavity 38 opens toward the base plate surface 84, it should be understood that during the pre-assembly of the tool connector 20, the clamp 26 can be slidably inserted into the inner cavity 38 via the side opening 86.

[0115] like Figure 2 and Figure 11 As shown, the side opening 86 can be closed by means of the side panel 88 to prevent the clamp 26 from accidentally sliding out of the cavity 38.

[0116] In some embodiments of the invention, the side panel 88 may be removably fastened to the base plate surface 84 by means of panel screws 90.

[0117] Furthermore, in some embodiments of the present invention, the side panel 88 may have an outer panel surface 92, and when the side panel 88 is fastened to the base plate surface 84, the outer panel surface 92 may be flush with the first outer peripheral side surface 82a.

[0118] Furthermore, in some embodiments of the present invention, the side panel 88 may have an inner panel surface 94, and a first inner surface 56a of the inner cavity 38 may be formed on the inner panel surface 94.

[0119] In other embodiments of the invention (not shown), the second member 24 and the clamp 26 may be produced simultaneously by means of additive manufacturing, such that the clamp 26 is captureably located in the cavity 38.

[0120] In embodiments of the invention, where the clamp 26 is located in the cavity 38, it should be understood that the second member 24 may lack a side opening, and the clamp 26 may be permanently constrained to the cavity 38.

[0121] It should be recognized that, compared to conventional production methods, additive manufacturing can provide a more cost-effective production method by simultaneously producing the second component 24 and the fixture 26.

[0122] like Figure 9As shown in the top view of the tool connector 20, the lateral axis A2 may intersect with the first outer peripheral side surface 82a and the second outer peripheral side surface 82b to define the body width WB.

[0123] In some embodiments of the present invention, at least one of the first lateral range EL1 and the second lateral range EL2 may be greater than one-third of the body width WB, that is, EL1>WB / 3 and / or EL2>WB / 3.

[0124] In embodiments of the present invention, wherein the first adjacent region 46 and the second adjacent region 48 extend along the direction of the lateral axis A2, and at least one of the first lateral range EL1 and the second lateral range EL2 is greater than one-third of the body width WB, it should be recognized that a highly robust and stable clamping structure can be achieved.

[0125] In some embodiments of the present invention, each of the first lateral range EL1 and the second lateral range EL2 may be greater than half of the body width WB, that is, EL1>WB / 2 and EL2>WB / 2.

[0126] It should be recognized that, in other embodiments of the invention (not shown), at least one of the first adjacent region 46 and the second adjacent region 48 may include a plurality of adjacent sub-regions spaced apart along the direction of the lateral axis A2. In such embodiments, any gaps between adjacent sub-regions can be ignored when measuring the first lateral range EL1 and the second lateral range EL2.

[0127] like Figure 5 , Figure 10a and Figure 11 As shown, the second component 24 may include a screw opening 96, wherein the opening axis A3 is transverse to the second plane P2.

[0128] In some embodiments of the present invention, the opening axis A3 may be perpendicular to the second plane P2.

[0129] Furthermore, in some embodiments of the present invention, the opening axis A3 may be included in the fourth plane P4.

[0130] like Figure 5 , Figure 6 and Figure 10 to Figure 12 As shown, the second member 24 may have opposing lower outer peripheral surface 98 and upper outer peripheral surface 100.

[0131] In some embodiments of the present invention, the lower outer peripheral surface 98 and the upper outer peripheral surface 100 may be separated by a first outer peripheral side surface 82a and a second outer peripheral side surface 82b, and the second member 24 may have a square or rectangular profile.

[0132] Furthermore, in some embodiments of the present invention, the screw hole 96 may open downward at the lower opening 102 onto the outer peripheral surface 98.

[0133] Furthermore, in some embodiments of the present invention, as shown in FIG10 and Figure 12 As shown, the lower outer peripheral surface 98 and the second adjacent region 48 may be located on opposite sides of the second plane P2.

[0134] like Figure 10a and Figure 10b As shown in the figure, in some embodiments of the invention, the screw opening 96 may be located entirely axially behind the first adjacent region 46.

[0135] In some embodiments of the invention, the screw hole 96 may be located axially behind the third adjacent region 68.

[0136] Furthermore, in some embodiments of the present invention, the screw hole 96 may communicate with the inner cavity 38.

[0137] In embodiments of the invention, wherein the clamp 26 is located in the cavity 38 (not shown), it should be understood that the only means of communication with the cavity 38 is provided by the female clamping portion 36 and the screw opening 96.

[0138] like Figure 10a As shown, the opening axis A3 may intersect with the upper outer peripheral surface 100 and the lower opening 102 of the opening to define the body height HB, and the lower opening 102 of the opening may have an opening center point NB, which is located at a first longitudinal distance DL from the rear mating surface 58.

[0139] In some embodiments of the present invention, the first longitudinal distance DL may be less than twice the body height HB, that is, DL<2*HB.

[0140] Furthermore, in some embodiments of the present invention, the first longitudinal distance DL may be less than the body height HB, that is, DL <HB。

[0141] like Figure 10a and Figure 11 As shown, screw component 104 (which has screw axis A4 coaxial with the hole axis A3) can be threadedly engaged in screw hole 96.

[0142] In some embodiments of the invention, the first screw end 106 of the screw component 104 may have a screw socket 108 so that a torque key (not shown) can engage and rotate the screw component 104 about the screw axis A4.

[0143] Furthermore, in some embodiments of the invention, the screw socket 108 may be accessible from the lower outer peripheral surface 98 of the second member.

[0144] In embodiments of the invention, where the tool connector 20 is configured as a cutting tool 80, it should be appreciated that, for machining arrangements (where the cutting tool 80 is mounted in a tool holder (not shown) with limited access, and where it is desirable to have a minimal suspension of the front cutting end 72 from the tool holder while still providing access to the screw socket 108, for example, Swiss turning operations), it can be very advantageous to position the opening center point NB at a first longitudinal distance DL from the rear mating surface 58, less than twice the body height HB.

[0145] In other embodiments of the invention (not shown), the second member 24 and the screw component 104 may be produced simultaneously by means of additive manufacturing, and the screw component 104 may be located in the second member 24 in a captive manner.

[0146] In some embodiments of the present invention, such as Figure 9 As shown, rotation of the screw component 104 about the screw axis A4 in the first screw direction DS1 actuates the clamp rear drive portion 44 to facilitate the tightening of the tool connector 20.

[0147] Furthermore, in some embodiments of the present invention, such as Figures 9 to 11 As shown, rotation of the screw component 104 about the screw axis A4 in the first screw direction DS1 allows the screw component 104 to travel along the opening axis A3 in the upward direction DU.

[0148] Furthermore, in some embodiments of the present invention, such as Figure 10a , Figure 10b and Figure 11 As shown, rotation of the screw component 104 about the screw axis A4 in the first screw direction DS1 allows the screw component 104 to apply an actuating force FA to the thrust surface 110 of the rear drive portion 44 of the clamp.

[0149] like Figure 10b and Figure 11 As shown, the actuating force FA can be directed in the upward direction DU.

[0150] Furthermore, in some embodiments of the invention, when the actuating force FA is applied, the second screw end 112 of the screw component 104 may contact the thrust surface 110.

[0151] like Figure 10a and Figure 11 As shown, the second screw end 112 of the screw component is axially opposite to the first screw end 106 along the screw axis A4.

[0152] In some embodiments of the present invention, the opening axis A3 may intersect with the thrust surface 110.

[0153] Furthermore, in some embodiments of the invention, the rear drive portion 44 of the clamp may exhibit mirror symmetry about the fourth plane P4.

[0154] In an embodiment of the invention, the center point NB of the opening is located at a first longitudinal distance DL less than twice the body height HB from the rear mating surface 58, and the axis of the opening A3 intersects the thrust surface 110 of the fixture. It should be appreciated that the fixture 26 can have a very compact construction, thus making it suitable for tool couplings used in Swiss turning operations.

[0155] With the tool connector 20 in the tightened state, such as Figure 12 As shown in the side view, the first adjacent region 46 and the thrust surface 110 can be positioned at a first distance D1 and a second distance D2 from the second adjacent region 48, respectively.

[0156] It should be recognized that, in the fastened state of the tool connector 20, the second adjacent region 48 can be used as a fulcrum, and the torque generated by the first component of the actuating force FA is converted around this fulcrum into the first component of the clamping force FC applied to the first adjacent region 46.

[0157] like Figure 10b As shown, the clamping force FC can be guided in the rearward direction DR.

[0158] In some embodiments of the present invention, the second distance D2 may be greater than the first distance D1, that is, D2>D1.

[0159] In the embodiments of the present invention, where the second distance D2 is greater than the first distance D1, it should be understood that the first component of the actuating force FA can be converted into the first component of the clamping force FC, which has mechanical advantages.

[0160] Furthermore, in some embodiments of the present invention, the second distance D2 may be greater than twice the first distance D1, that is, D2>2*D1.

[0161] In embodiments of the present invention, where the second distance D2 is more than twice the first distance D1, it should be understood that the first component of the actuating force FA can be converted into the first component of the clamping force FC, which has significant mechanical advantages, thereby enabling a highly robust clamping structure.

[0162] like Figure 12 As shown in the side view of the tool connector 20, the first distance D1 and the second distance D2 can be measured along the imaginary first straight line L1 and the second straight line L2, respectively.

[0163] Furthermore, in some embodiments of the present invention, the imaginary first straight line L1 may form an imaginary first angle α1 with the longitudinal axis A1, and the imaginary first angle α1 may be greater than 45 degrees, that is, α1>45°.

[0164] It should be recognized that the first torque arm length LM1 (not shown) associated with the first distance D1 is equal to the first distance D1 multiplied by the sine of the imaginary first angle α1 (i.e., LM1 = D1 * sinα1), and therefore for embodiments of the invention, where the imaginary first angle α1 is greater than 45 degrees, the torque associated with the first torque arm length LM1 can advantageously be high.

[0165] Furthermore, in some embodiments of the present invention, the imaginary second straight line L2 may form an imaginary second angle α2 with the opening axis A3, and the imaginary second angle α2 may be greater than 60 degrees, that is, α2>60°.

[0166] It should be recognized that the second torque arm length LM2 (not shown) associated with the second distance D2 is equal to the second distance D2 multiplied by the sine of the imaginary second angle α2 (i.e., LM2 = D2 * sinα2), and therefore for embodiments of the invention, where the imaginary second angle α2 is greater than 60 degrees, the torque associated with the second torque arm length LM2 can advantageously be high.

[0167] With the tool connector 20 in the tightened state, such as Figure 12 As shown in the side view, the first adjacent region 46 and the thrust surface 110 can be positioned at a third distance D3 and a fourth distance D4 from the third adjacent region 68, respectively.

[0168] It should be recognized that, in the fastened state of the tool connector 20, the third adjacent region 68 can be used as a fulcrum, and the rotational torque generated by the second component of the actuating force FA is converted around this fulcrum into the second component of the clamping force FC at the first adjacent region 46.

[0169] In some embodiments of the present invention, the fourth distance D4 may be greater than the third distance D3, that is, D4>D3.

[0170] In the embodiments of the present invention, where the fourth distance D4 is greater than the third distance D3, it should be understood that the second component of the actuating force FA can be converted into the second component of the clamping force FC, which has mechanical advantages.

[0171] like Figure 12 As shown in the side view of the tool connector 20, the third distance D3 and the fourth distance D4 can be measured along the imaginary third line L3 and the fourth line L4, respectively.

[0172] In some embodiments of the present invention, the imaginary third straight line L3 may form an acute angle with the longitudinal axis A1 to form an imaginary third triangle α3, and the imaginary third triangle α3 may be greater than 60 degrees, that is, α3>60°.

[0173] It should be recognized that the length of the third torque arm LM3 (not shown) associated with the third distance D3 is equal to the third distance D3 multiplied by the sine of the imaginary third triangle α3 (i.e., LM3 = D3 * sinα3), and therefore for embodiments of the invention, where the imaginary third triangle α3 is greater than 60 degrees, the torque associated with the length of the third torque arm LM3 can advantageously be high.

[0174] In some embodiments of the invention, the clamp 26 may have a rotation axis A5, which can rotate about the rotation axis A5 during the tightening and loosening of the tool connector 20.

[0175] like Figures 9 to 12 As shown, the axis of rotation A5 is transverse to the longitudinal axis A1 and approximately parallel to the second plane P2.

[0176] In some embodiments of the invention, the rotation axis A5 may be substantially parallel to the lateral axis A2.

[0177] Furthermore, in some embodiments of the invention, it should be recognized that the rotation axis A5 may not be fixed relative to the second member 24, and when viewed perpendicular to the second plane P2 during the tightening and loosening of the tool connector 20, the rotation axis A5 may undergo translational movement relative to the second member 24.

[0178] like Figure 7 and Figure 8 As shown, the first engagement area 62 and the second engagement area 64 of the clamp can be respectively disposed on the opposite first peripheral engagement surface 114 and the second peripheral engagement surface 116 of the front engagement portion 42 of the clamp.

[0179] The clamp 26 has a clamp undercut 51. Based on the clamp undercut 51, the front engagement portion 42 of the clamp includes a clamp hook 43, which protrudes in the forward direction DF in the tool connector 20.

[0180] In the tightened state, the clamp hook 43 engages with the male hook 31, and the rear mating surface 58 of the rear mating end 32 clamps and contacts the front mating surface 60 of the front mating end 40. In the loosened state, the clamp hook 43 disengages from the male hook 31. The tool connector 20 can be adjusted between the tightened and loosened states when actuated by the screw component 104 operatively engaged with the rear drive portion 44 of the clamp.

[0181] like Figure 8As shown in the side view of the fixture 26, the first outer peripheral engagement surface 114 may be recessed outward, and the second outer peripheral engagement surface 116 may be protruding outward.

[0182] In addition, such as Figure 8 As shown in the side view of the clamp 26, the clamp 26 may be kidney-shaped.

[0183] In embodiments of the present invention, where the fixture 26 is constructed with complex surface geometry, for example, a first peripheral engagement surface 114 that is recessed outward and a second peripheral engagement surface 116 that is convex outward, it should be recognized that, compared to conventional manufacturing methods, producing the fixture 26 by means of additive manufacturing can provide a more cost-effective manufacturing method.

[0184] like Figure 8 The side view of fixture 26 shown can be obtained along the axis of rotation A5.

[0185] In some embodiments of the invention, the first peripheral engagement surface 114 may include a plurality of concave sub-surfaces of different radii, thereby having a smooth transition between them.

[0186] In embodiments of the invention, wherein the first peripheral engagement surface 114 is recessed outward and has a smooth transition between concave sub-surfaces of different radii, it should be understood that the clamp 26 may be able to transfer a high clamping force FC to the first adjacent region 46, wherein the minimum level of stress is concentrated near the first peripheral engagement surface 114.

[0187] In some embodiments of the present invention, the third engagement region 70 of the clamp may be disposed on the convex second peripheral engagement surface 116.

[0188] Furthermore, in some embodiments of the present invention, in the side view of the clamp 26, as shown... Figure 8 As shown, the axis of rotation A5 may be located outside the fixture 26, and the concave first peripheral engagement surface 114 may face toward the axis of rotation A5.

[0189] In embodiments of the present invention, wherein the axis of rotation A5 is not fixed relative to the second member 24 and the second outer peripheral engagement surface 116 protrudes outward, it should be understood that during the tightening and loosening of the tool connector 20, the second engagement region 64 and the third engagement region 70 of the clamp can slide transitionally along the second adjacent region 48 and the third adjacent region 68 of the inner cavity 38, respectively.

[0190] like Figure 8 As shown in the side view of the fixture 26, the fixture 26 is externally attached to an imaginary first circle C1 with a first diameter DA1 and a first center point NC1.

[0191] In some embodiments of the present invention, the clamping second engagement region 64 of the second outer peripheral engagement surface 116 may be located on the imaginary first circle C1.

[0192] like Figure 8 As shown in the side view of the fixture 26, the axis of rotation A5 may be located in an imaginary second circle C2 with a second diameter DA2 and a second center point NC2.

[0193] In some embodiments of the present invention, the second center point NC2 may coincide with the first center point NC1.

[0194] Furthermore, in some embodiments of the invention, the axis of rotation A5 may not be fixed relative to the clamp 26, and when viewed perpendicular to the second plane P2 during the tightening and loosening of the tool connector 20, the axis of rotation A5 may undergo translational movement within an imaginary second circle C2.

[0195] Furthermore, in some embodiments of the present invention, the second diameter DA2 may be less than one-quarter of the first diameter DA1.

[0196] like Figure 8 As shown in the side view of the fixture 26, the shortest distance between the second engagement area 64 of the second outer peripheral engagement surface 116 and the first outer peripheral engagement surface 114 defines the engagement portion thickness TE.

[0197] In some embodiments of the present invention, the thickness TE of the joint portion may be greater than 20 percent of the first diameter DA1, that is, TE>0.20*DA1.

[0198] In embodiments of the invention, where the thickness TE of the joint portion is greater than 20 percent of the first diameter DA1, it should be recognized that the clamp 26 can have a high level of rigidity and is therefore able to transfer a high clamping force FC to the first adjacent region 46 with minimal deflection.

[0199] In some embodiments of the invention, rotation of the screw component 104 about the screw axis A4 in the second screw direction DS2 can actuate the clamp rear drive portion 44 to facilitate the release of the tool connector 20.

[0200] like Figure 9 As shown, the second screw direction DS2 may be opposite to the first screw direction DS1 with respect to the screw axis A4.

[0201] In some embodiments of the invention, rotation of the screw component 104 about the screw axis A4 in the second screw direction DS2 can cause the screw component 104 to travel along the opening axis A3 in the downward direction DD.

[0202] Furthermore, in some embodiments of the present invention, such as Figure 13a and Figure 13b As shown, rotation of screw component 104 about screw axis A4 in the second screw direction DS2 allows screw component 104 to apply release force FR to pull-back element 118 of clamp drive portion 44.

[0203] like Figure 13b As shown, the release force FR can be directed in the downward direction DD.

[0204] Furthermore, in some embodiments of the present invention, such as Figure 13b As shown, applying the release force FR to the pull-back element 118 of the clamp allows the clamp 26 to rotate about the rotation axis A5 in the first rotation direction DW1.

[0205] like Figure 7 and Figure 8 As shown, the pull-back element 118 may be spaced apart from the thrust surface 110.

[0206] In some embodiments of the present invention, such as Figure 12 and Figure 13b As shown, the pull-back element 118 may take the form of at least one pull-back protrusion 120a, 120b extending laterally relative to the screw axis A4.

[0207] Furthermore, in some embodiments of the present invention, such as Figure 11 As shown, the pull-back element 118 may include a first pull-back protrusion 120a and a second pull-back protrusion 120b, which are located on opposite sides of the fourth plane P4.

[0208] like Figure 13a and Figure 13b As shown, the screw component 104 may have a screw shoulder 122 adjacent to the second screw end 112, and when a release force FR is applied, the screw shoulder 122 may contact at least one pull-back protrusion 120a, 120b.

[0209] In some embodiments of the present invention, such as Figure 13a and Figure 13b As shown, rotation of screw component 104 about screw axis A4 in the second screw direction DS2 can cause the second screw end 112 to become spaced apart from the thrust surface 110.

[0210] In embodiments of the present invention, wherein the first engagement region 62 and the second engagement region 64 of the clamp are respectively disposed on the opposing concave first peripheral engagement surface 114 and convex second peripheral engagement surface 116, it should be understood that any risk of the clamp front engagement portion 42 getting stuck or obstructed can be minimized, and the magnitude of the release force FR required to rotate the screw component 104 in the second screw direction DS2 and to facilitate the loosening of the tool connector 20 can be relatively small.

[0211] like Figure 13a and Figure 13b As shown, in the released state of the tool connector 20, the front engagement portion 42 of the clamp can be spaced apart from the first adjacent region 46.

[0212] In addition, such as Figure 13a and Figure 13b As shown, in the released state of the tool connector 20, the clamp front engagement portion 42 can be spaced apart from the entire male clamping portion 30 and is located on the upper side SU of the second plane P2.

[0213] In addition, such as Figure 13a and Figure 13b As shown, in the released state of the tool connector 20, the clamp front engagement portion 42 can be spaced apart from the second adjacent region 48.

[0214] In some embodiments of the invention, with the tool connector 20 in the released state, the first member 22 may be slidably removed from the second member 24 along the longitudinal axis A1.

[0215] During the subsequent re-tightening of the tool connector 20, it should be recognized that applying the actuating force FA to the thrust surface 110 of the clamp can cause the clamp 26 to rotate about the axis of rotation A5 in the second rotation direction DW2.

[0216] like Figure 10b and Figure 13b As shown, the second rotation direction DW2 can be opposite to the first rotation direction DW1 about the rotation axis A5.

[0217] Although the invention has been described with a degree of specificity, it should be understood that various changes and modifications may be made without departing from the spirit or scope of the invention as claimed below.

Claims

1. A tool connector (20) extending along a longitudinal axis (A1) in a forward to rearward direction and having a first plane (P1) perpendicular to the longitudinal axis (A1) and a second plane (P2) including the longitudinal axis (A1) and transverse to the first plane (P1), the second plane (P2) having an upper side (SU) defining an upward direction (DU) of the tool connector (20) and a lower side (SL) opposite to the upper side (SU) and defining a downward direction (DD) of the tool connector (20), the tool connector (20) comprising: A first component (22), a second component (24), and a clamp (26) for fastening the first component (22) to the second component (24). The first component (22) has a first body portion (28) and a male clamping portion (30) extending in the rearward direction (DR) from the rear mating end (32) of the first body portion (28). The second component (24) has a second body portion (34), a female clamping portion (36), and an inner cavity (38). The female clamping portion (36) opens toward the front mating end (40) of the second body portion (34), and the inner cavity (38) communicates with the female clamping portion (36). The clamp (26) is located in the inner cavity (38) and has a clamp front engagement portion (42) and a clamp rear drive portion (44). The clamp front engagement portion (42) has a clamp first engagement area (62) and a clamp second engagement area (64). in: The male clamping portion (30) occupies the female clamping portion (36) and has a first adjacent region (46) located axially behind the first plane (P1); The inner cavity (38) has a second adjacent region (48) located axially in front of the first plane (P1), and the second adjacent region (48) is located on the upper side (SU) of the second plane (P2); Each of the first adjacent region (46) and the second adjacent region (48) faces the first plane (P1); and In the tightened state of the tool connector (20): The rear mating surface (58) of the rear mating end (32) is in clamping contact with the front mating surface (60) of the front mating end (40); The first engaging region (62) of the clamp makes clamping contact with the first adjacent region (46) of the male clamping portion; and The second engagement area (64) of the clamp is in clamping contact with the second adjacent area (48) of the inner cavity.

2. The tool connector (20) according to claim 1, wherein: The second component (24) includes a screw opening (96) having an opening axis (A3) transverse to the second plane (P2). A screw component (104) having a screw axis (A4) coaxial with the opening axis (A3) is threadedly engaged in the screw opening (96), and The rotation of the screw component (104) about the screw axis (A4) in the first screw direction (DS1) actuates the rear drive portion (44) of the clamp to facilitate the tightening of the tool connector (20).

3. The tool connector (20) according to claim 2, wherein, The rotation of the screw component (104) about the screw axis (A4) in the first screw direction (DS1) causes the screw component (104) to travel along the opening axis (A3) in the upward direction (DU).

4. The tool connector (20) according to claim 2, wherein: The second member (24) has opposing lower outer peripheral surfaces (98) and upper outer peripheral surfaces (100), and The screw hole (96) opens toward the lower outer peripheral surface (98) at the lower opening (102).

5. The tool connector (20) according to claim 4, wherein, The lower outer peripheral surface (98) and the second adjacent region (48) are located on opposite sides of the second plane (P2).

6. The tool connector (20) according to claim 4, wherein: The opening axis (A3) intersects the upper outer peripheral surface (100) and the lower opening (102) of the opening to define the body height (HB). The lower opening (102) has an opening center point (NB) located at a first longitudinal distance (DL) from the rear mating surface (58). The first longitudinal distance (DL) is less than twice the height of the body (HB).

7. The tool connector (20) according to claim 1, wherein: The lateral axis (A2) is defined by the intersection of the first plane (P1) and the second plane (P2), and The first adjacent region (46) and the second adjacent region (48) extend along the direction of the lateral axis (A2).

8. The tool connector (20) according to claim 7, wherein: The second member (24) has opposing first peripheral side surfaces (82a) and second peripheral side surfaces (82b). The lateral axis (A2) intersects the first outer peripheral side surface (82a) and the second outer peripheral side surface (82b) to define the body width (WB). The first adjacent region (46) and the second adjacent region (48) each have a first lateral range (EL1) and a second lateral range (EL2), and At least one of the first lateral range (EL1) and the second lateral range (EL2) is greater than one-third of the body width (WB).

9. The tool connector (20) according to claim 8, wherein, Each of the first lateral range (EL1) and the second lateral range (EL2) is greater than half of the body width (WB).

10. The tool connector (20) according to claim 2, wherein, The rotation of the screw component (104) about the screw axis (A4) in the first screw direction (DS1) causes the screw component (104) to apply an actuating force (FA) to the thrust surface (110) of the rear drive portion (44) of the clamp.

11. The tool connector (20) according to claim 10, wherein, In the fastened state of the tool connector (20), and in its side view: The first adjacent region (46) and the thrust surface (110) are located at a first distance (D1) and a second distance (D2) from the second adjacent region (48), respectively. The second distance (D2) is greater than the first distance (D1).

12. The tool connector (20) according to claim 11, wherein: The second distance (D2) is more than twice the first distance (D1).

13. The tool connector (20) according to claim 1, wherein: The inner cavity (38) has a third adjacent region (68) which is located axially behind the first plane (P1), and In the fastened state of the tool connector (20), the clamping third engagement region (70) of the clamping front engagement portion (42) is in clamping contact with the third adjacent region (68) of the inner cavity.

14. The tool connector (20) according to claim 13, wherein, The third adjacent region (68) of the inner cavity is located axially behind the first adjacent region (46).

15. The tool connector (20) according to claim 2, wherein, The rotation of the screw component (104) about the screw axis (A4) in the second screw direction (DS2) actuates the clamp rear drive portion (44) to facilitate the release of the tool connector (20).

16. The tool connector (20) according to claim 15, wherein, The rotation of the screw component (104) about the screw axis (A4) in the second screw direction (DS2) causes the screw component (104) to apply a release force (FR) to the pull-back element (118) of the rear drive portion (44) of the clamp.

17. The tool connector (20) according to claim 15, wherein, In the released state of the tool connector (20): The front engagement portion (42) of the clamp is spaced apart from the entire male clamping portion (30) and is located on the upper side (SU) of the second plane (P2).

18. The tool connector (20) according to claim 15, wherein, In the released state of the tool connector (20): The first component (22) can be slidably removed from the second component (24) along the longitudinal axis (A1).

19. The tool connector (20) according to claim 1, wherein, The clamp (26) has a rotation axis (A5) and the clamp (26) is rotatable about the rotation axis (A5).

20. The tool connector (20) according to claim 19, wherein: The first engagement area (62) and the second engagement area (64) of the clamp are respectively disposed on the opposing first outer peripheral engagement surface (114) and second outer peripheral engagement surface (116) of the front engagement portion (42) of the clamp, and In a side view of the fixture (26), the first peripheral engagement surface (114) is recessed outward, and the second peripheral engagement surface (116) is protruding outward.

21. The tool connector (20) according to claim 20, wherein, In the side view of the clamp (26): An imaginary first circle (C1) having a first diameter (DA1) and a first center point (NC1) is externally attached to the clamp (26). The axis of rotation (A5) lies within an imaginary second circle (C2) having a second diameter (DA2) and a second center point (NC2). The second center point (NC2) coincides with the first center point (NC1), and The second diameter (DA2) is less than one-quarter of the first diameter (DA1).

22. The tool connector (20) according to claim 21, wherein, In the side view of the clamp (26): The shortest distance between the second engagement region (64) of the second outer peripheral engagement surface (116) and the first outer peripheral engagement surface (114) defines the engagement portion thickness (TE), and The thickness (TE) of the joint portion is greater than 20 percent of the first diameter (DA1).

23. The tool connector (20) according to claim 20, wherein, In the side view of the clamp (26): The axis of rotation (A5) is located outside the clamp (26), and The first outer peripheral engagement surface (114) faces the axis of rotation (A5).

24. The tool connector (20) according to claim 19, wherein, The axis of rotation (A5) is transverse to the longitudinal axis (A1) and parallel to the second plane (P2).

25. A tool connector (20) extending along a longitudinal axis (A1) in a forward to rearward direction, and comprising: A first component (22) having a first body portion (28) and a male clamping portion (30) extending in the rearward direction (DR) from the rear mating end (32) of the first body portion (28), the male clamping portion (30) including a male hook (31) protruding in the rearward direction (DR). A second component (24) having a second body portion (34), a female clamping portion (36), and an inner cavity (38), wherein the female clamping portion (36) opens toward the front mating end (40) of the second body portion (34), and the inner cavity (38) communicates with the female clamping portion (36); and A clamp (26) located in the cavity (38) has a clamp front engagement portion (42) and a clamp rear drive portion (44), the clamp front engagement portion (42) including a clamp hook (43) protruding in the forward direction (DF); in; The male clamping portion (30) occupies the female clamping portion (36); and When the screw component (104) operatively engaged with the rear drive portion (44) of the clamp is actuated, the tool connector (20) can be adjusted between the following states: In the fastened state, wherein: The clamp hook (43) engages with the male hook (31); and The rear mating surface (58) of the rear mating end (32) is in clamping contact with the front mating surface (60) of the front mating end (40); In the released state, where: The clamp hook (43) is disengaged from the male hook (31), and The actuation of the screw component (104) about the screw axis (A4) causes the clamp (26) to rotate about a rotation axis (A5) transverse to the longitudinal axis (A1); and The axis of rotation (A5) is not fixed relative to the second member (24).

26. The tool connector (20) according to claim 25, wherein: During the tightening and loosening of the tool connector (20), the rotation axis (A5) undergoes translational movement relative to the second member (24).

27. The tool connector (20) according to claim 25, wherein: The tool connector (20) has a first plane (P1) perpendicular to the longitudinal axis (A1) and a second plane (P2) containing the longitudinal axis (A1) and transverse to the first plane (P1). The second plane (P2) has an upper side (SU) defining an upward direction (DU) of the tool connector (20) and a lower side (SL) opposite to the upper side (SU) and defining a downward direction (DD) of the tool connector (20). The clamp front engagement portion (42) has a clamp first engagement area (62) and a clamp second engagement area (64); The male clamping portion (30) has a first adjacent region (46) located axially behind the first plane (P1); The inner cavity (38) has a second adjacent region (48) located axially in front of the first plane (P1), and the second adjacent region (48) is located on the upper side (SU) of the second plane (P2); Each of the first adjacent region (46) and the second adjacent region (48) faces the first plane (P1); and In the tightened state of the tool connector (20): The first engaging region (62) of the clamp makes clamping contact with the first adjacent region (46) of the male clamping portion; and The second engagement area (64) of the clamp is in clamping contact with the second adjacent area (48) of the inner cavity.

Images