Tail-adjustable guide arm milling tool clamp

Abstract

The utility model discloses a tail-adjustable guide arm milling tool clamp using different types of guide arms. The tail-adjustable guide arm milling tool clamp comprises a front end positioning and clamping mechanism, a middle jacking mechanism and a tail adjusting, positioning and clamping mechanism. The symmetrical center lines of the three parts in the length direction of the base are on the same straight line, so that the guide arms are positioned in the same straight line direction. Wherein bases of all the mechanisms are provided with driving assemblies connected with the workbench, and the mechanism can be suitable for guide arms with different lengths and sizes. And the middle jacking mechanism can be suitable for guide arms with different shapes and heights. The tail adjusting, positioning and clamping mechanism can be suitable for guide arms with the tails in different angle shapes. According to the tail-adjustable guide arm milling tool clamp, the guide arm is positioned and clamped through a front point, a middle point and a rear point, the two side faces of the guide arm can be milled at the same time without interference, positioning and clamping are accurate, the shape applicability is high, the machining error is low, and the production efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tool fixture of guide arm, concretely relates to a tail adjustable milling tool fixture of guide arm. BACKGROUND

[0002] With the universal application of high-end passenger cars and the continuous improvement of people's driving comfort, air suspension is widely used in the field of automobiles, and the use of guide arm products has also been popularized, and various shapes of guide arms have also emerged. In order to meet the installation requirements, the middle and ear parts of the guide arm need to be milled.

[0003] The conventional milling edge tool currently used in China is mainly non-adjustable, resulting in complex tooling, high cost, low production efficiency, and when the product blank has different shape sizes, the product size deviation is large due to inaccurate positioning, and the product consistency is low. There are three technical problems in the ordinary milling edge tool: 1. The height and position of the positioning block are not adjustable, and the universality is poor. 2. When the positioning block is worn or damaged, the whole needs to be replaced, and the use cost is high. 3. When the product blank has different shape sizes, the positioning is not accurate, resulting in serious size deviation. SUMMARY

[0004] In order to overcome the shortcomings of the present tool fixture, the application provides a tail adjustable guide arm milling tool fixture to adapt to the complex shape of the guide arm in different products. To solve the problems of unstable clamping of guide arm, large positioning deviation and other positioning defects, reduce the processing error of the side milling, reduce the labor intensity, and improve the production efficiency of the product.

[0005] In order to achieve the above purpose, the application provides a tail adjustable guide arm milling tool fixture, which is applied to the milling of complex shape guide arm. The tail adjustable guide arm milling tool fixture comprises a front end positioning and clamping mechanism, a middle part pressing mechanism and a tail adjusting and positioning clamping mechanism.

[0006] The front end positioning and clamping mechanism is used for positioning and clamping the guide arm roll ear, so that the symmetry center line of the guide arm coincides with the symmetry center line of the length direction of the front end positioning and clamping mechanism.

[0007] The middle part pressing mechanism is used for pressing the middle part of the guide arm, so as to avoid the milling error caused by the suspension of the guide arm.

[0008] The tail adjusting and positioning clamping mechanism is used for positioning and clamping the tail of the guide arm, so that the tail of the guide arm realizes accurate positioning.

[0009] The front end positioning and clamping mechanism comprises a front end positioning base, a front end adjusting support block and a front end clamping fixture.

[0010] The front end positioning base is connected with the bottom of the workbench by bolt and nut driving connection, so as to adapt to the positioning of the front end of the guide arm along the length direction of the base.

[0011] The front end adjusting support block has different thicknesses, which are used for adapting to the positioning of the guide arm along the normal height direction of the workbench.

[0012] The front end clamping clamp is provided with a "V" type lower clamping jaw and a "I" type upper clamping jaw for positioning the roll ear of the guide arm, and a bolt and nut is arranged to connect the upper clamping jaw and the lower clamping jaw, so as to clamp the roll ear of the guide arm by adjusting the position of the nut.

[0013] The middle part pressing mechanism comprises a middle part pressing base, a pressing nut and a pressing nut.

[0014] The middle part pressing base is connected with the bottom of the workbench by bolt and nut driving connection, so as to adapt to the positioning of the middle part of the guide arm.

[0015] The middle part pressing base is provided with a pressing bolt above it, the pressing nut and the pressing nut are connected with the pressing bolt through threads, and the pressing nut is locked after being adjusted to the appropriate position, so as to prevent the guide arm from sliding during processing and affecting the processing size precision, and realize the middle part pressing effect of the guide arm.

[0016] The tail part adjusting positioning and clamping mechanism comprises a tail part positioning base, two adjusting cylinders and a tail part clamping clamp.

[0017] The tail part positioning base is connected with the bottom of the workbench by bolt and nut driving connection, so as to adapt to the positioning of the tail part of the guide arm.

[0018] The two adjusting cylinders are connected with the tail part positioning base and the tail part clamping clamp, the height difference between the two cylinders is adjusted by the pressure difference between the two cylinders, the angle of the tail part clamping clamp is obtained, and the positioning of the tail part of the guide arm with different angles is achieved.

[0019] The tail part clamping clamp is provided with an "L" type lower clamping jaw and a second "I" type upper clamping jaw for positioning the tail part of the guide arm, and a bolt and nut is arranged to connect the upper clamping jaw and the lower clamping jaw, so as to clamp the tail part of the guide arm by adjusting the position of the nut.

[0020] The tail part positioning base is connected with two adjusting cylinders above it, wherein the two adjusting cylinders comprise a fixed cylinder and a movable cylinder. The fixed cylinder is used for positioning the tail part of the guide arm, and the movable cylinder can slide along the length direction of the base to adapt to the adjustment of the angle position.

[0021] The pressure difference provided by the pressure of the two adjusting cylinders makes the two adjusting cylinders have different heights, and then the tail clamping fixture is adjusted at different angles.

[0022] The two adjusting cylinders are connected with the "L"-shaped lower clamping jaw through a hinge, and are used to support the tail clamping fixture, and the angle of the tail clamping fixture is adjusted while the heights of the two adjusting cylinders are adjusted.

[0023] Compared with the prior art, the application has the following beneficial effects:

[0024] The tail-adjustable guide arm milling tool fixture provided by the application comprises a front end positioning and clamping mechanism, a middle part pressing mechanism and a tail adjusting and positioning clamping mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A structure diagram of a guide arm is shown;

[0026] Figure 2 A whole structure diagram of a tail-adjustable guide arm milling tool fixture is shown;

[0027] Figure 3 A whole structure diagram of a tail-adjustable guide arm milling tool fixture is shown; Figure 2 A whole structure diagram of a tail-adjustable guide arm milling tool fixture is shown;

[0028] Figure 4 A whole structure diagram of a tail-adjustable guide arm milling tool fixture is shown; Figure 2The overall structure of a tail-adjustable guide arm milling tool clamp provided in the application is shown in a top view;

[0029] Figure 5 The front end positioning and clamping mechanism structure at A in the application is shown in a schematic view; Figure 2 The front end positioning and clamping mechanism structure at A in the application is shown in a schematic view;

[0030] Figure 6 The front end positioning and clamping mechanism structure at A in the application is shown in a schematic view; Figure 2 The front end positioning and clamping mechanism structure at A in the application is shown in a schematic view;

[0031] Figure 7 The front end positioning and clamping mechanism structure at A in the application is shown in a schematic view; Figure 2 The front end positioning and clamping mechanism structure at A in the application is shown in a schematic view;

[0032] Main element symbol explanation:

[0033] 1-guide arm; 1a-coil ear; 1b-long arm section; 1c-bent arm; 1d-tail arm;

[0034] 2-workbench; 3-front end positioning base; 4-front end adjusting support block; 5-front end clamping clamp; 5a-front end clamping clamp table; 5b-“V” type lower clamping jaw; 5c-first spring; 5d-first nut; 5e-first bolt; 5f-first “one” type upper clamping jaw; 5g-first support rod; 6-first bolt group; 7-middle part jacking base; 7a-jacking base; 7b-jacking bolt; 8-jacking nut; 9-jacking nut; 10-second bolt group; 11-tail positioning base; 12-movable air cylinder; 13-tail clamping clamp; 13a-“L” type lower clamping jaw; 13b-second support rod; 13c-second “one” type upper clamping jaw; 13d-second nut; 13e-second bolt; 13f-second spring; 14-fixed air cylinder; 15-third bolt group; 16-fourth bolt group. DETAILED DESCRIPTION

[0035] Embodiments of the application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the application, and cannot be understood as a limitation of the application.

[0036] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "middle", "rear", "vertical", "horizontal", "top", "bottom", "axial", "radial", "normal" is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0037] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0038] In the utility model, unless otherwise specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication or interaction relationship between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0039] Please refer to Figure 1 And Figure 2 The tail-adjustable guide arm milling tool clamp of the embodiment can be applied to the milling of the guide arm 1, and the milling of the guide arm 1 can be realized through one-time clamping and positioning, the processing error is reduced, the labor intensity is reduced, and the production efficiency is improved.

[0040] In the embodiment, a guide arm 1 to be processed is also provided, and the guide arm 1 is applied to the installation suspension of an automobile. After the quenching process, the guide arm 1 is in a Z shape, and the center line of symmetry of the guide arm 1 is located in the length direction of the guide arm 1.

[0041] The guide arm 1 includes three sections connected in sequence along the length direction, and the three sections are a lacing ear 1a, a bent arm 1c and a tail arm 1d in sequence, and a middle section between the lacing ear 1a and the bent arm 1c is defined as a long arm section 1b. Among them, the two side surfaces of the long arm section 1b need to be processed into flat surfaces due to assembly requirements. Therefore, in the embodiment, the lacing ear 1a and the long arm section 1b are the areas to be milled.

[0042] In order to realize the machining of the two side surfaces of the roll ear 1a and the long arm section 1b of the guide arm 1, the embodiment provides a tail-adjustable guide arm milling tool clamp, which comprises a front end positioning and clamping mechanism A, a middle part pressing mechanism B and a tail adjusting and positioning clamping mechanism C, and the front end positioning and clamping mechanism A, the middle part pressing mechanism B and the tail adjusting and positioning clamping mechanism C are distributed on the workbench 2 along the length direction of the workbench 2.

[0043] Please refer to Figure 2 and Figure 3 , the front end positioning and clamping mechanism A comprises a front end positioning base 3, a front end adjusting support block 4 and a front end clamping clamp 5. Figure 2 The front end positioning base 3, the front end adjusting support block 4 and the front end clamping clamp 5 are sequentially connected along the normal direction of the upper surface of the workbench 2, and the symmetry center line of the front end positioning base 3 coincides with the length direction of the symmetry center line of the workbench 2.

[0044] In the embodiment, a certain number of mounting holes are arranged on the front end positioning base 3, and the certain number of mounting holes are evenly distributed around the front end positioning base 3. The certain number of mounting holes are used to drive and connect the front end positioning base 3 to the workbench 2 through the first bolt group 6, and the length direction guide rail is arranged on the workbench 2 for fixing and moving the front end positioning base 3 along the length direction of the workbench 2, thereby realizing the installation and fixing and the length direction movement of the front end positioning and clamping mechanism A.

[0045] In the embodiment, the movability of the front end positioning base 3 is used for the movement of the front end positioning and clamping mechanism A along the length direction of the workbench 2, the thickness adjustability of the front end adjusting support block 4 is used for the height adjustment of the front end clamping clamp 5 along the normal direction of the upper surface of the workbench 2, thereby realizing the positioning of the roll ear 1a of the guide arm 1, and the front end clamping clamp 5 is used for positioning and clamping the roll ear 1a of the guide arm 1. It can be understood that when the front end clamping clamp 5 clamps the roll ear 1a of the guide arm 1, the areas to be milled on the two sides of the roll ear 1a should be avoided.

[0046] Please refer to Figure 2 , Figure 3 , Figure 4 and Figure 5, specifically, the front end clamping fixture 5 includes a front end clamping table 5a, a "V" type lower clamping jaw 5b, a first spring 5c, a first nut 5d, a first bolt 5e, a first "I" type upper clamping jaw 5f and a first support rod 5g. The front end adjusting support block 4 is connected with the front end clamping table 5a and the front end positioning base 3 through bolts and nuts, according to the shape of the guide arm 1, different thicknesses of the front end adjusting support block 4 are replaced to realize the positioning of the front end clamping table 5a, and the "V" type lower clamping jaw 5b is connected to the front end clamping table 5a to realize the position adjustment of the "V" type lower clamping jaw 5b and the positioning of the eye 1a of the guide arm 1. Among them, the first spring 5c, the first bolt 5e, the first "I" type upper clamping jaw 5f and the first support rod 5g form a simple lever, that is, when the guide arm 1 is clamped, the eye 1a of the guide arm 1 is located between the "V" type lower clamping jaw 5b and the first "I" type upper clamping jaw 5f, and the contact surface of the "V" type lower clamping jaw 5b has an anti-skid design to prevent the eye 1a of the guide arm 1 from sliding, the first "I" type upper clamping jaw 5f can be attached to the upper surface of the eye 1a of the guide arm 1, and the center line of symmetry of the guide arm 1 coincides with the center line of symmetry of the length direction of the front end positioning and clamping mechanism A, at this time, the first nut d is tightened to clamp the eye 1a of the guide arm 1, in addition, the first bolt 5e is provided with a first spring 5c for supporting the first "I" type upper clamping jaw 5f to prevent the first "I" type upper clamping jaw 5f from falling too fast and damaging the eye 1a of the guide arm 1.

[0047] Please refer to Figure 2 and Figure 3 , the middle top-up mechanism B includes a middle top-up base 7, a top-up nut 8 and a top-up nut 9. As Figure 2 , the middle top-up mechanism B is located in the middle of the workbench 2, and is placed on the workbench 2 along the length direction with the front end positioning and clamping mechanism A. The middle top-up base 7, the top-up nut 8 and the top-up nut 9 are connected in sequence along the normal direction of the upper surface of the workbench 2, and the middle top-up base 7 includes a top-up base 7a and a top-up bolt 7b, a certain number of mounting holes are provided on the top-up base 7a, and the certain number of mounting holes are uniformly distributed around the top-up base 7a. A certain number of mounting holes are used to drive and connect the top-up base 7a to the workbench 2 through the second bolt group 10, and the workbench 2 is provided with a length direction guide rail for fixing and moving the top-up base 7a along the length direction of the workbench 2, thereby realizing the installation, fixation and length direction movement of the middle top-up mechanism B.

[0048] In the embodiment, the middle clamping mechanism B is used for positioning and supporting the bent arm 1c of the guide arm 1, that is, when the front end positioning and clamping mechanism A and the tail adjusting and positioning and clamping mechanism C clamp the coiled ear 1a and the tail arm 1d of the guide arm 1, the middle clamping mechanism B supports and clamps the guide arm 1 upwards, so that the long arm segment 1b of the guide arm 1 is stably positioned and clamped, and the sliding dislocation of the guide arm 1 during milling is prevented. It can be understood that when the middle clamping mechanism B supports and clamps the bent arm 1c of the guide arm 1, the to-be-milled processing areas on both sides of the long arm segment 1b should be avoided.

[0049] Please refer to Figure 2 , Figure 3 , Figure 4 and Figure 6 , specifically, the clamping base 7a is provided with a clamping bolt 7b, and the clamping nut 8 and the clamping nut 9 are connected through the threads of the clamping bolt 7b. After the coiled ear 1a and the tail arm 1d of the guide arm 1 are positioned and clamped by the front end positioning and clamping mechanism A and the tail adjusting and positioning and clamping mechanism C, the clamping nut 9 supports and clamps the bent arm 1c of the guide arm 1 upwards to the appropriate position, and then the clamping nut 8 and the clamping nut 9 are locked to realize the middle clamping of the guide arm 1, so as to avoid the sliding of the guide arm 1 during milling and affect the processing precision.

[0050] Please refer to Figure 2 and Figure 3 , the tail adjusting and positioning and clamping mechanism C includes a tail positioning base 11, a movable cylinder 12, a fixed cylinder 14, and a tail clamping clamp 13. As Figure 2 , the tail adjusting and positioning and clamping mechanism C is located at one end of the workbench 2 away from the front end positioning and clamping mechanism A in the length direction. The tail positioning base 11, the movable cylinder 12, the fixed cylinder 14, and the tail clamping clamp 13 are connected in sequence along the normal direction of the upper surface of the workbench 2, and the bottom of the tail positioning base 11 is provided with a plurality of mounting holes which are uniformly distributed around the tail positioning base 11. The mounting holes are used to drive and connect the tail positioning base 11 to the workbench 2 through the third bolt group 15, and the workbench 2 is provided with a length direction guide rail for fixing and moving the tail positioning base 11 along the length direction of the workbench 2, thereby realizing the installation, fixation and length direction movement of the tail adjusting and positioning and clamping mechanism C. The tail positioning base 11 is also provided with a guide rail for adjusting the position of the movable cylinder 12, so as to facilitate the adjustment of the angle of the tail clamping clamp 13.

[0051] In the embodiment, the adjusting cylinder includes the movable cylinder 12 and the fixed cylinder 14. The movable cylinder 12 is driven and connected to the tail positioning base 11 through the fourth bolt group 16. The movable cylinder 12 can slide on the tail positioning base 11 through the fourth bolt group 16 to realize the movement of the movable cylinder 12, and thereby realize the angle adjustment of the tail clamping clamp 13.

[0052] In the embodiment, the mobility of the tail positioning base 11 is used to adjust the position of the positioning and clamping mechanism C, the movable cylinder 12, the fixed cylinder 14 and the tail clamping clamp 13 are connected through hinges to support the tail clamping clamp 13, the movable cylinder 12 and the fixed cylinder 14 are connected through the pressure provided by the cylinders to realize the height difference of the two cylinders, and the movable cylinder 12 is movable to further adjust the angle of the tail clamping clamp 13, and the tail clamping clamp 13 is used to position and clamp the tail arm 1d of the guide arm 1.

[0053] Please refer to Figure 2 , Figure 3 , Figure 4 and Figure 7 , in detail, the tail clamping clamp 13 includes an “L” type lower clamping jaw 13a, a second supporting rod 13b, a second “one” type upper clamping jaw 13c, a second nut 13d, a second bolt 13e and a second spring 13f. Among them, the second supporting rod 13b, the second “one” type upper clamping jaw 13c, the second bolt 13e and the second spring 13e form a simple lever, that is, when the guide arm 1 is clamped, the tail arm 1d of the guide arm 1 is located between the “L” type lower clamping jaw 13a and the second “one” type upper clamping jaw 13c, and the contact surface of the “L” type lower clamping jaw 13a has an anti-skid design, the second “one” type upper clamping jaw 13c can be attached to the upper surface of the tail arm 1d of the guide arm 1, and the second nut 13d is tightened to clamp the tail arm 1d of the guide arm 1, in addition, the second bolt 13e is provided with a second spring 13f for supporting the second “one” type upper clamping jaw 13c, preventing the second “one” type upper clamping jaw 13c from falling too fast and damaging the tail arm 1d of the guide arm 1.

[0054] The tail adjustable guide arm milling tool clamp provided by the embodiment is used to tightly fit the lower surface of the eye 1a of the guide arm 1 with the "V" type lower clamping jaw 5b of the front end clamping clamp 5, the eye 1a of the guide arm 1 is clamped by the front end clamping clamp 5 of the front end positioning clamping mechanism A, the symmetric center line of the guide arm 1 coincides with the symmetric center line of the length direction of the front end positioning base 3, the position of the tail adjusting positioning clamping mechanism C is determined by adjusting the tail positioning base 11 according to the size of the guide arm 1, the position of the movable cylinder 12 is adjusted according to the shape of the guide arm 1, the height difference of the two adjusting cylinders is realized by the pressure difference of the cylinder, and then the angle of the tail clamping clamp 13 is adjusted, so that the "L" type lower clamping jaw 13a of the tail clamping clamp 13 tightly fits with the lower surface of the tail arm 1d of the guide arm 1, the tail arm 1d of the guide arm 1 is clamped and positioned by the tail clamping clamp 13, the positioning and clamping of the guide arm 1 are completed, then the bending arm 1c of the guide arm 1 is lifted to the appropriate position by adjusting the jacking bolt 7b of the middle jacking mechanism B, and the bending arm 1c supporting and jacking the guide arm 1 is locked by the jacking nut 8 and the jacking nut 9, so as to prevent the guide arm 1 from sliding and mispositioning during milling. When batch milling is performed, the front end adjusting support block 4 does not need to be replaced, the angle and height of the tail clamping clamp 13 do not need to be adjusted, and only the first "one" type upper clamping jaw 5f of the front end clamping clamp 5 and the second "one" type upper clamping jaw 13c of the tail clamping clamp 13 need to be loosened and tightened, so that the batch guide arm 1 can be replaced, and the production efficiency and product consistency can be effectively improved.

Claims

1. A tail-adjustable guide arm milling tooling jig applied to the milling of a guide arm, characterized by, The tail-adjustable guide arm milling tool clamp comprises a front end positioning and clamping mechanism, a middle part pressing mechanism and a tail adjusting and positioning clamping mechanism. The front end positioning and clamping mechanism is used for positioning and clamping the guide arm eye ring, so that the symmetric center line of the guide arm coincides with the symmetric center line of the length direction of the front end positioning and clamping mechanism base. The middle part pressing mechanism is used for pressing the middle part of the guide arm, so as to avoid the milling machining error caused by the suspension of the guide arm. The tail adjusting and positioning clamping mechanism is used for positioning and clamping the tail of the guide arm, so that the guide arm is accurately positioned at the tail.

2. The tail-adjustable guide arm milling tooling jig according to claim 1, wherein, The front end positioning and clamping mechanism comprises a front end positioning base, a front end adjusting support block and a front end clamping clamp. The front end positioning base and the bottom of the workbench are connected by bolt and nut driving connection to play the roles of positioning and stabilization, so as to adapt to the front end positioning of guide arms of different models along the length direction of the base. The front end adjusting support block adopts support blocks of different thickness sizes, which are used for adapting to the positioning of guide arms of different models along the normal height direction of the upper surface of the workbench. The front end clamping clamp is provided with a "V"-shaped lower clamping jaw and a first "I"-shaped upper clamping jaw, which are used for positioning the guide arm eye ring.

3. The tail-adjustable guide arm milling tooling jig according to claim 1, wherein, The middle part pressing mechanism comprises a middle part pressing base, a pressing nut and a pressing nut. The middle part pressing base and the bottom of the workbench are connected by bolt and nut driving connection, so as to adapt to the pressing positioning of guide arms of different shapes. The middle part pressing base is provided with a pressing bolt above it, the pressing nut and the pressing nut are connected with the pressing bolt through threads, and the pressing nut is locked with the pressing nut after being adjusted to the appropriate position, so as to prevent the guide arm from sliding during milling and affecting the machining size precision, and realize the middle part pressing of the guide arm.

4. The tail adjustable guide arm milling tooling fixture of claim 1, wherein, The tail adjusting and positioning clamping mechanism comprises a tail positioning base, two adjusting cylinders and a tail clamping clamp. The tail positioning base and the bottom of the workbench are connected by bolt and nut driving connection, so as to adapt to the positioning of guide arms of different lengths. The two adjusting cylinders are connected with the positioning base and the tail clamping clamp, the height difference between the two is adjusted to obtain the angle of the tail clamping clamp, and the tail clamping clamp is used for positioning guide arms of different angles. The tail clamping clamp is provided with an "L"-shaped lower clamping jaw and a second "I"-shaped upper clamping jaw, which are used for positioning the tail of the guide arm.

5. The tail adjustable guide arm milling tooling fixture of claim 4, wherein, The tail positioning base is connected with the two adjusting cylinders above it, wherein the two adjusting cylinders comprise a fixed cylinder and a movable cylinder; the fixed cylinder is used for positioning the tail, and the movable cylinder can slide along the length direction of the base to adjust the angle position.

6. The tail-adjustable type of guide arm milling tool clamp according to claim 5, wherein The fixed cylinder and the movable cylinder realize the adjustment of the height of the two adjusting cylinders along the normal direction of the upper surface of the workbench by the pressure difference provided by the pressure, and the adjustment of the angle of the tail clamping clamp is realized by adjusting the height difference between the fixed cylinder and the movable cylinder. The two adjusting cylinders and the "L"-shaped lower clamping jaw are connected through a hinge for supporting the tail clamping clamp, and the adjustment of the angle of the tail clamping clamp is realized while the length of the two adjusting cylinders is adjusted.

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