Tool clamping assembly of servo tool turret

Abstract

The utility model provides a tool clamping assembly of a servo tool turret, which solves the problems of insufficient stress stability of tool clamping and the like, and comprises a clamping base, a clamping groove for inserting a tool is arranged on the clamping base, symmetrically arranged clamping holes are arranged on the inner side of the clamping groove, clamping blocks are respectively arranged in the clamping holes in a sliding manner, and the clamping blocks are arranged on the clamping base. An electric pushing assembly is arranged between the clamping block and the clamping hole, a self-adaptive attaching assembly is arranged at the end of the clamping block, and an inclined jacking assembly is installed at the bottom of the clamping groove. The utility model has the advantages of stable structure, good adaptability and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of turret clamps, and in particular relates to a servo turret tool clamping assembly. Background Art

[0002] Existing machine tool tools typically use hydraulic drive to clamp and secure them. Conventional hydraulic chucks hold the tool's entire diameter and length, forming an axis that can be found on the specific tool. The tool is clamped securely by the uniform compression of the metal wall of the clamp under liquid pressure. However, in actual use, existing hydraulic chucks are poorly adaptable to special-shaped tools and cannot ensure a stable clamping force point, making the tool prone to detachment during turning operations. Furthermore, conventional clamps have a small contact area.

[0003] In order to solve the shortcomings of the existing technology, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses a boring tool holder on a turret lathe [202022940332.1], which has a through hole for installing a tool, a slit groove 1 connected to the through hole is opened on the tool holder, and the length of the slit groove 1 is the same as the length of the through hole. The side of the tool holder located at the slit groove is also provided with a mounting hole that passes through the tool holder, and the slit groove can be controlled by inserting a bolt into the mounting hole and locking it to control the opening and closing amplitude of the slit groove. The through hole is also penetrated by a ring-shaped tool sleeve, and a slit groove 2 is opened on the outer circumference of the tool sleeve. The slit groove 2 is distributed along the length direction of the tool sleeve and the length of the slit groove 2 is the same as the length of the tool sleeve.

[0004] The above solution solves the problem of insufficient contact area between the fixture and the tool to a certain extent, but the solution still has many shortcomings, such as the inability to maintain the stability of the clamping force point. Summary of the Invention

[0005] The purpose of the utility model is to solve the above problems and provide a servo turret tool clamping assembly with a reasonable design and a stable clamping force point structure.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a servo turret tool clamping assembly, including a clamping base, a clamping groove for tool insertion is opened on the clamping base, symmetrically arranged clamping holes are opened on the inner side of the clamping groove, clamping blocks are slidably installed in the clamping holes, an electric pushing assembly is arranged between the clamping block and the clamping hole, an adaptive fitting assembly is arranged at the end of the clamping block, and an oblique pressing assembly is installed at the bottom of the clamping groove.

[0007] In the above-mentioned servo turret tool clamping assembly, the clamping base includes a clamping chassis, and the clamping chassis is installed with a pair of clamping platforms through an adjustment assembly. The clamping groove is arranged between the clamping platforms, and several mounting bars are fixed to the lower end of the clamping chassis, and the cross-section of the mounting bars is T-shaped.

[0008] In the above-mentioned servo turret tool clamping assembly, the adjustment assembly includes an adjustment slot arranged on the clamping chassis, the clamping platform has an adjustment bar slidably connected to the adjustment slot, and the adjustment slot is slidably installed with an adjustment block located between the adjustment bars.

[0009] In the above-mentioned servo turret tool clamping assembly, the electric pushing assembly includes a pushing motor, the output end of the pushing motor is connected to a pushing screw, the pushing screw is connected to a pushing gear through a clutch assembly, and the pushing gear is engaged with a pushing rack arranged on the clamping block for transmission.

[0010] In the above-mentioned servo turret tool clamping assembly, the clutch assembly includes a clutch gear that is engaged with the push screw for transmission, and a first transmission gear is fixed to the side of the clutch gear. The first transmission gear is engaged with the second transmission gear for transmission, and the second transmission gear is engaged with the third transmission gear for transmission. The side of the third transmission gear is fixedly connected to the push gear.

[0011] In the above-mentioned servo turret tool clamping assembly, the first transmission gear, the second transmission gear and the third transmission gear are bevel gears, the second transmission gear is rotatably connected to a telescopic electromagnet through a clutch rod, the clutch rod is rotatably connected to a clamping block, and the clamping block has a clamping strip that is clamped with the third transmission gear.

[0012] In the above-mentioned servo turret tool clamping assembly, the pushing gear and the third transmission gear are equipped with torque sensors.

[0013] In the above-mentioned servo turret tool clamping assembly, the adaptive fitting assembly includes a clamping block arranged at the end of the clamping block, and the clamping block is rotatably mounted with a semicircular fitting block, which has a fitting surface that fits and presses against the tool.

[0014] In the above-mentioned servo turret tool clamping assembly, the oblique pressing assembly includes a pressing plate hinged to the clamping base, the pressing plate is rotatably connected to a linkage plate, the linkage plate is rotatably connected to a linkage block slidably installed on the clamping base, and a linkage screw is threadedly installed between the linkage block and the clamping base.

[0015] In the above-mentioned servo turret tool clamping assembly, an expansion hole is opened on the clamping base.

[0016] Compared with the existing technology, the advantages of the present invention are: the electric pushing component applies a pushing torque to the adaptive fitting component, and cooperates with the oblique pressing component to ensure the stability of the tool clamping force point; the electric pushing component can accurately control the clamping force of each clamping block and the adaptive fitting component, and can adapt to different tool shapes; the oblique pressing component can ensure the stability of the tool's oblique support. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the utility model from another perspective;

[0019] Figure 3 It is a structural schematic diagram of the clutch assembly of the utility model;

[0020] Figure 4 It is a partial schematic diagram of the utility model;

[0021] In the figure, there are clamping base 1, clamping chassis 11, clamping platform 12, mounting bar 13, adjusting slot 14, adjusting bar 15, adjusting block 16, clamping slot 2, clamping hole 3, clamping block 4, electric pushing assembly 5, pushing motor 51, pushing screw 52, ​​pushing gear 53, pushing rack 54, adaptive fitting assembly 6, pressing block 61, fitting block 62, oblique top pressure assembly 7, top pressure plate 71, linkage plate 72, linkage block 73, linkage screw 74, expansion hole 75, clutch assembly 8, clutch gear 81, first transmission gear 82, second transmission gear 83, third transmission gear 84, telescopic electromagnet 85, clutch rod 86, clamping block 87, and clamping bar 88. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0023] like Figure 1-4 As shown, a servo turret tool clamping assembly includes a clamping base 1 made of stainless steel, which is fitted and fixed in the corresponding turret body. A clamping groove 2 for inserting the tool is provided on the clamping base 1, and the specifications of the clamping groove 2 can be adjusted according to the tool. Symmetrically arranged clamping holes 3 are provided on the inner side of the clamping groove 2, and clamping blocks 4 are slidably installed in the clamping holes 3. An electric pushing assembly 5 is provided between the clamping block 4 and the clamping hole 3 to provide a telescopic driving torque for the clamping block 4. An adaptive fitting assembly 6 is provided at the end of the clamping block 4 to directly fit and press the tool. An oblique pressing assembly 7 is installed at the bottom of the clamping groove 2. When the tool is fitted and pressed with the adaptive fitting assembly 6, the oblique pressing assembly 7 provides additional support for the tool.

[0024] Specifically, the clamping base 1 comprises a flat clamping chassis 11, to which a pair of independent clamping platforms 12 are mounted via an adjustment assembly. The clamping slot 2 is arranged between the clamping platforms 12. A plurality of mounting bars 13 with a T-shaped cross-section are fixed to the lower end of the clamping chassis 11. The clamping chassis 11 is fixed using a sliding plug-in method, and the adjustment assembly adjusts the size of the clamping slot 2.

[0025] Specifically, unlike existing adjustment structures, the adjustment assembly in this application includes an adjustment slot 14 provided on a clamping chassis 11, an adjustment bar 15 slidably connected to the adjustment slot 14, and an adjustment block 16 slidably mounted on the adjustment slot 14 between the adjustment bars 15. The lateral stability of the clamping platform 12 is ensured by filling the adjustment slot 14 with multiple adjustment blocks 16, and the end of the adjustment slot 14 is sealed with a screw and a cover.

[0026] Furthermore, compared to pneumatic or hydraulic propulsion structures, electric drive facilitates precise control of the clamping force. The electric propulsion assembly 5 includes a propulsion motor 51, the output end of which is connected to a propulsion screw 52. The propulsion screw 52 is connected to a propulsion gear 53 via a clutch assembly 8. The propulsion gear 53 meshes with a propulsion rack 54 disposed on the clamping block 4. The clutch assembly 8 controls the linkage of the propulsion screw 52, ​​allowing each propulsion rack 54 to drive independently.

[0027] Furthermore, the clutch assembly 8 includes a clutch gear 81 that meshes with the push screw 52 for transmission. A first transmission gear 82 is fixed to the side of the clutch gear 81. The first transmission gear 82 meshes with the second transmission gear 83 for transmission. The second transmission gear 83 meshes with the third transmission gear 84 for transmission. The side of the third transmission gear 84 is fixedly connected to the push gear 53. The clutch assembly 8 takes into account both speed change and transmission reversing.

[0028] In addition, the first transmission gear 82, the second transmission gear 83, and the third transmission gear 84 are bevel gears. The second transmission gear 83 is rotatably connected to a telescopic electromagnet 85 via a clutch rod 86. The clutch rod 86 is rotatably connected to a clamping block 87, which has a clamping strip 88 that engages with the third transmission gear 84. The clamping block 87 and the second transmission gear 83 rotate independently relative to the clutch rod 86. A limiting structure is provided between the clamping block 87 and the clamping base 1 to ensure that the clamping block 87 slides axially with the clutch rod 86.

[0029] At the same time, the pushing gear 53 and the third transmission gear 84 are equipped with torque sensors, which perform negative feedback regulation with the pushing motor 51 and the telescopic electromagnet 85 to limit the pushing torque of the clamping block 4.

[0030] As can be seen, the adaptive fitting assembly 6 includes a pressure block 61 mounted at the end of the clamping block 4. This pressure block 61 is rotatably mounted with a semicircular fitting block 62, which has a fitting surface that mates with the tool. Multiple fitting blocks 62 can rotate flexibly, providing a good fit for special-shaped tools and, in conjunction with multiple sets of clamping blocks 4, achieve multi-point tool clamping.

[0031] Obviously, the oblique pressing assembly 7 includes a pressing piece 71 hinged to the clamping base 1. The pressing piece 71 is rotatably connected to a linkage piece 72. The linkage piece 72 is rotatably connected to a linkage block 73 slidably mounted on the clamping base 1. A linkage screw 74 is threadedly mounted between the linkage block 73 and the clamping base 1. The linkage screw 74 rotates and pushes the linkage block 73 to slide, causing the pressing piece 71 and the linkage piece 72 to fold, and the pressing piece 71 then comes into contact with the tool surface.

[0032] Preferably, an expansion hole 75 is opened on the clamping base 1, and the expansion hole 75 is usually connected to a threaded member, so that the clamping base 1 can be fixed on different turrets.

[0033] To sum up, the principle of this embodiment is that the clamping bases 1 of the clamping bases 1 are arranged in pairs, the clamping grooves 2 between them are used for inserting the tool, the electric pushing component 5 applies a pressing torque to the adaptive fitting component 6, and the oblique pressing component 7 at the bottom of the clamping groove 2 provides an additional support point.

[0034] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0035] Although the present invention frequently uses terms such as the clamping base 1, the clamping chassis 11, the clamping platform 12, the mounting bar 13, the adjustment slot 14, the adjustment bar 15, the adjustment block 16, the clamping slot 2, the clamping hole 3, the clamping block 4, the electric pushing assembly 5, the pushing motor 51, the pushing screw 52, ​​the pushing gear 53, the pushing rack 54, the adaptive fitting assembly 6, the pressing block 61, the fitting block 62, the oblique pressing assembly 7, the pressing plate 71, the linkage plate 72, the linkage block 73, the linkage screw 74, the expansion hole 75, the clutch assembly 8, the clutch gear 81, the first transmission gear 82, the second transmission gear 83, the third transmission gear 84, the telescopic electromagnet 85, the clutch rod 86, the clamping block 87, and the clamping bar 88, the possibility of using other terms is not excluded. The use of these terms is merely to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A servo turret tool clamping assembly, comprising a clamping base (1), wherein the clamping base (1) is provided with a clamping groove (2) for inserting a tool, and wherein: The inner side of the clamping groove (2) is provided with symmetrically arranged clamping holes (3), and clamping blocks (4) are slidably installed in the clamping holes (3). An electric pushing component (5) is provided between the clamping block (4) and the clamping hole (3), and an adaptive fitting component (6) is provided at the end of the clamping block (4). An oblique pressing component (7) is installed at the bottom of the clamping groove (2).

2. A servo turret tool clamping assembly according to claim 1, characterized in that: The clamping base (1) includes a clamping chassis (11), and the clamping chassis (11) is installed with a pair of clamping platforms (12) through an adjustment component. The clamping groove (2) is arranged between the clamping platforms (12). A plurality of mounting strips (13) are fixed to the lower end of the clamping chassis (11), and the cross section of the mounting strips (13) is T-shaped.

3. The servo turret tool clamping assembly according to claim 2, characterized in that: The adjustment assembly includes an adjustment slot (14) arranged on a clamping chassis (11); the clamping platform (12) has an adjustment bar (15) slidably connected to the adjustment slot (14); and the adjustment slot (14) is slidably mounted with an adjustment block (16) located between the adjustment bars (15).

4. The servo turret tool clamping assembly according to claim 1, characterized in that: The electric pushing assembly (5) includes a pushing motor (51), the output end of the pushing motor (51) is connected to a pushing screw (52), the pushing screw (52) is connected to a pushing gear (53) through a clutch assembly (8), and the pushing gear (53) is meshed with a pushing rack (54) arranged on the clamping block (4) for transmission.

5. The servo turret tool clamping assembly according to claim 4, characterized in that: The clutch assembly (8) includes a clutch gear (81) meshing with the pushing screw (52) for transmission, a first transmission gear (82) is fixed on the side of the clutch gear (81), the first transmission gear (82) is meshing with the second transmission gear (83) for transmission, the second transmission gear (83) is meshing with the third transmission gear (84) for transmission, and the side of the third transmission gear (84) is fixedly connected to the pushing gear (53).

6. The servo turret tool clamping assembly according to claim 5, characterized in that: The first transmission gear (82), the second transmission gear (83) and the third transmission gear (84) are bevel gears. The second transmission gear (83) is rotatably connected to a telescopic electromagnet (85) via a clutch rod (86). The clutch rod (86) is rotatably connected to a clamping block (87). The clamping block (87) has a clamping strip (88) that is clamped to the third transmission gear (84).

7. The servo turret tool clamping assembly according to claim 5, characterized in that: The pushing gear (53) and the third transmission gear (84) are equipped with torque sensors.

8. The servo turret tool clamping assembly according to claim 1, characterized in that: The adaptive fitting component (6) includes a pressing block (61) arranged at the end of the clamping block (4), and the pressing block (61) is rotatably mounted with a semicircular fitting block (62), and the fitting block (62) has a fitting surface that fits and presses against the tool.

9. The servo turret tool clamping assembly according to claim 1, characterized in that: The oblique pressing assembly (7) includes a pressing plate (71) hinged to the clamping base (1), the pressing plate (71) is rotatably connected to a linkage plate (72), the linkage plate (72) is rotatably connected to a linkage block (73) slidably mounted on the clamping base (1), and a linkage screw (74) is threadedly mounted between the linkage block (73) and the clamping base (1).

10. The servo turret tool clamping assembly according to claim 1, characterized in that: The clamping base (1) is provided with an expansion hole (75).

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