A jig that can adjust the angle of the workpiece machining surface

Abstract

This utility model discloses a fixture with adjustable workpiece machining surface angles, comprising: a three-axis rocking table, on the top surface of which a product placement seat is fixedly connected for supporting the workpiece to be processed; a force-applying pressing mechanism, detachably connected to the top surface of the three-axis rocking table, the force-applying pressing mechanism having a force-applying lever, the fulcrum of which is located on one side of the product placement seat, the resistance end of which is used to laterally press against the workpiece on the product placement seat; and a clamping claw mechanism, located beside the product placement seat, the movable clamping claw of which presses against the workpiece on the product placement seat. This invention has a simple structure, reliable and stable workpiece clamping, and can adjust the workpiece clamping posture to meet the machining requirements of multiple angles and surfaces of the workpiece.

Description

Technical Field

[0001] This utility model belongs to the technical field of workpiece processing and clamping equipment, specifically relating to a fixture that can adjust the angle of the workpiece processing surface. Background Technology

[0002] Traditionally, for grooving or milling on a workpiece surface, the machining equipment is aligned with the surface of the workpiece to be machined. The angle of the machining equipment cannot be adjusted. For irregular workpieces or when machining different angle surfaces of the workpiece, the clamping angle of the workpiece can only be adjusted manually. This inevitably affects the clamping performance of the fixture. Traditional fixtures have stable and reliable clamping performance when clamping the reference surface of the workpiece, but after changing the clamping angle of the workpiece, the clamping performance of the fixture cannot be guaranteed, and the positioning is also inaccurate.

[0003] When processing products, if the workpiece is not clamped stably, the processing accuracy and quality of grooving on the workpiece surface cannot be guaranteed. It is understandable that existing fixtures are single-type clamping devices, and the clamping angle and position of the fixture cannot be changed. The position of the workpiece can only be adjusted by external personnel, which affects the clamping stability of the fixture. When some workpiece surfaces require angled processing operations, the existing fixture equipment cannot guarantee the clamping stability. In addition, the existing fixtures cannot guarantee the clamping stability, and require the power conditions of hydraulic cylinders or pneumatic cylinders. This inevitably increases the usage requirements of the fixture cylinders or hydraulic cylinders and increases the usage cost.

[0004] Therefore, how to provide a fixture that provides stable and reliable clamping and allows for adjustment of the workpiece machining surface angle is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides a fixture with adjustable workpiece machining surface angle, which can adjust the clamping angle of the workpiece according to the actual machining needs of the workpiece, thereby realizing the machining of the workpiece surface at any angle by an external machining center.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a fixture with adjustable workpiece machining surface angle, comprising:

[0007] A three-axis oscillating table, wherein a product placement seat is fixedly connected to the top surface of the three-axis oscillating table, and the product placement seat is used to support the workpiece to be processed;

[0008] A force-applying pressing mechanism is detachably connected to the top surface of the three-axis rocking table. The force-applying pressing mechanism is equipped with a force-applying lever. The fulcrum of the force-applying lever is located on one side of the product placement seat. The resistance end of the force-applying lever is used to laterally press against the workpiece on the product placement seat.

[0009] A pressure claw mechanism is provided on the side of the product placement seat, and the top side of the movable pressure claw of the pressure claw mechanism presses against the workpiece on the product placement seat.

[0010] The beneficial effects of this utility model are: the three-axis rocking table can realize the adjustment of the posture angle when the workpiece is clamped, which can meet the actual processing needs of the workpiece. The posture of the workpiece can be changed without changing the clamping position of the workpiece on the product placement seat. The force pressing mechanism and the pressure claw mechanism can achieve the effect of fixing the workpiece in multiple directions, ensuring the stability of the workpiece during processing, and thus ensuring the accuracy of the workpiece during processing. This device has strong workpiece clamping stability and can adjust the posture of the workpiece during processing as needed, and has a wide range of applicable processing applications.

[0011] Preferably, it also includes a lead screw sliding mechanism, wherein the sliding seat of the lead screw sliding mechanism is fixed to the bottom of the three-axis rocker table, and the sliding seat carries the three-axis rocker table to or away from an external grinding wheel machining center.

[0012] The resulting technical effect is that the set lead screw sliding mechanism can cause the three-axis swing table and the workpiece it carries to complete the position movement, which facilitates the loading or unloading process of the external machining center.

[0013] Preferably, the three-axis swing table includes a base, a first swing table, a second swing table, and a third swing table. The base is fixedly connected to the sliding seat. The top two sides of the base are provided with screw holes. The bottom two sides of the first swing table are provided with ear plates. The ear plates are provided with arc-shaped slots. Locking bolts for connecting screw holes are provided in the arc-shaped slots. A washer to increase the contact area is provided between the locking bolts and the top surface of the ear plates. The tightness of the locking bolts is used to limit the rotation angle of the first swing table corresponding to the Z-axis. The top of the first swing table is provided with an arc-shaped recessed groove. The bottom of the second swing table is provided with a protrusion embedded in the recessed groove. A first abutting strip is provided between the protrusion and the sidewall of the recessed groove. The sidewall of the first swing table is provided with a through-type... The bolt hole in the recessed groove is used to adjust the degree of the first abutment bar's contact with the protrusion. The first abutment bar is used to limit the rotation angle of the second swing platform corresponding to the X-axis. The top of the second swing platform has an arc-shaped recessed groove perpendicular to the protrusion. The bottom of the third swing platform has a guide block embedded in the recessed groove. A second abutment bar is provided between the side wall of the recessed groove and the guide block. The side wall of the second swing platform has a threaded hole that passes through the recessed groove. A bolt is connected to the corresponding threaded hole to adjust the degree of the second abutment bar's contact with the guide block. The second abutment bar is used to limit the rotation angle of the third swing platform corresponding to the Y-axis. The top surface of the third swing platform is the top surface of the three-axis swing platform.

[0014] The resulting technical effect is that the purpose of setting up the three-axis oscillating table is to realize the position and angle change of the top table surface, thereby adjusting the posture of the workpiece on it, and thus meeting the processing needs of different surface angles of the workpiece.

[0015] Preferably, the base is provided with an arc-shaped ruler for adjusting the angle of the first swing platform, and the side walls of the first and second swing platforms are provided with scale lines for adjusting the swing angle of the adjacent upper swing platforms.

[0016] The resulting technical effect is that the curved ruler and scale lines can provide a reference for adjusting the swing angle of the swing table, which facilitates subsequent high-precision adjustment of the workpiece's posture.

[0017] Preferably, the product placement seat is provided with a V-shaped workpiece holding part, and a supporting surface is provided on one side of the product placement seat corresponding to the workpiece holding part. Multiple chip removal grooves are provided on the supporting surface, and the resistance end of the force-applying lever is located on the other side of the product placement seat corresponding to the workpiece holding part.

[0018] The resulting technical effects are: the V-shaped workpiece holding part provides a foundation for placing the workpiece, the support surface provides lateral support for the workpiece and also provides a foundation for the force-bearing mechanism, the chip removal groove can discharge cutting chips and prevent them from accumulating in the workpiece holding part, and the resistance end can laterally press against the workpiece, thereby ensuring the clamping stability of the workpiece.

[0019] Preferably, the force-applying pressing mechanism includes a pressing cylinder, a pressing cylinder fixing seat, and a force-applying lever. The pressing cylinder fixing seat is fixed to the top surface of the three-axis rocking table. The pressing cylinder is fixedly connected to the pressing cylinder fixing seat. A wedge is fixed to the extended end of the pressing cylinder. A roller is rotatably connected to the power end of the force-applying lever. The roller makes rolling contact with the inclined surface of the wedge. The resistance end of the force-applying lever is provided with a pressing block for laterally pressing the workpiece.

[0020] The resulting technical effect is that the force-applying pressing mechanism is driven by the pressing cylinder to pry the force-applying lever. The power end of the force-applying lever is based on the movement of the wedge, and the resistance end of the force-applying lever can cause the pressing block to move closer to or away from the workpiece. It can be understood that the force-applying pressing mechanism improves the stability of workpiece loading.

[0021] The side of the fulcrum of the lever closest to the power end is the power arm, and the side of the fulcrum of the lever closest to the resistance end is the resistance arm. The length of the resistance arm is smaller than the length of the power arm.

[0022] The resulting technical effect is that the length of the power arm is greater than that of the resistance arm, so the power end has a torque amplification effect on the resistance end, thereby reducing the torque requirement of the power end.

[0023] Preferably, the resistance end of the force-applying lever is hinged to the pressure block, the product placement seat is provided with a groove for the pressure block to slide, and the pressure block is located on one end of the workpiece and can be close to or away from the workpiece.

[0024] The resulting technical effect is that the pressing block slides along the groove of the product placement seat, and the driving force for the sliding of the pressing block comes from the force-applying lever, which can amplify the torque. A smaller pressing cylinder driving force can provide a larger pressing torque to the force-applying lever, which can be achieved without a high-power pressing cylinder.

[0025] Preferably, the pressure claw mechanism includes a pressure claw cylinder, a pressure claw bracket, and a movable pressure claw. The cylinder seat of the pressure claw cylinder is hinged to the pressure cylinder fixing seat. The pressure claw bracket is fixed to the side of the product placement seat. The movable pressure claw is hinged to the pressure claw bracket. The telescopic end of the pressure claw cylinder is hinged to one end of the movable pressure claw. The other end of the movable pressure claw is used to press against the workpiece.

[0026] The resulting technical effect is that the movable clamping claw provides clamping torque based on the clamping claw cylinder, which can fix the workpiece on the product placement seat. This mechanism provides limited torque, so it is combined with the force-applying clamping mechanism to achieve stable clamping of the workpiece. Attached Figure Description

[0027] Figure 1 This utility model describes the overall structure of a fixture for adjusting the angle of a workpiece machining surface. Figure 1 ;

[0028] Figure 2 This utility model describes the overall structure of a fixture for adjusting the angle of a workpiece machining surface. Figure 2 ;

[0029] Figure 3 This is a first-view schematic diagram of a three-axis swing table for a fixture with adjustable workpiece machining surface angle according to the present invention.

[0030] Figure 4 This is a second-view schematic diagram of a three-axis rocking table for a fixture with adjustable workpiece machining surface angle according to the present invention.

[0031] Figure 5 This is a schematic diagram of a product placement seat for a fixture that can adjust the angle of the workpiece machining surface according to the present invention.

[0032] Figure 6 This is a schematic diagram of a product placement seat and a workpiece for a fixture with an adjustable workpiece machining surface angle according to the present invention.

[0033] Figure 7 This is a schematic diagram of the force-applying and pressing mechanism of a fixture for adjusting the angle of a workpiece machining surface according to this utility model;

[0034] Figure 8 This is a schematic diagram of the force-applying lever layout of a fixture for adjusting the angle of a workpiece machining surface according to the present invention;

[0035] Figure 9 This is a schematic diagram of the pressure claw mechanism of a fixture for adjusting the angle of the workpiece machining surface according to the present invention.

[0036] 1. Three-axis swing table, 11. Base, 12. First swing table, 121. Recessed groove, 13. Second swing table, 131. Protrusion, 132. Inner groove, 14. Third swing table, 141. Guide block, 15. Shim, 16. Scale line, 17. Ear plate, 18. Arc-shaped slot, 19. First clamping bar, 110. Second clamping bar, 111. Arc-shaped ruler, 2. Product placement seat, 21. Workpiece holding part, 22. Supporting surface, 221. Chip removal groove, 23. Groove rail, 3. Workpiece, 4. Force pressing mechanism, 41. Pressing cylinder, 42. Pressing cylinder fixing seat, 43. Force lever, 431. Power arm, 432. Resistance arm, 44. Wedge, 45. Roller, 46. Pressing block, 5. Claw mechanism, 51. Claw cylinder, 52. Claw bracket, 53. Movable claw, 6. Screw sliding mechanism, 61. Sliding seat. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] See appendix to this utility model Figures 1 to 9 According to an embodiment of the present invention, a fixture for adjusting the angle of a workpiece machining surface includes:

[0039] A three-axis swing table 1 has a product placement seat 2 fixedly connected to its top surface. The product placement seat 2 is used to support the workpiece 3 to be processed.

[0040] The force-applying pressing mechanism 4 is connected to the top surface of the three-axis rocker table 1 by bolts. The angle and position are adjusted during installation. The force-applying pressing mechanism 4 is equipped with a force-applying lever 43. The fulcrum of the force-applying lever 43 is located on one side of the product placement seat 2. The resistance end of the force-applying lever 43 is used to laterally press against the workpiece 3 on the product placement seat 2. The force-applying lever is based on the lever-tilt principle and can achieve the effect of small torque input and large torque output.

[0041] The pressure claw mechanism 5 is located on the side of the product placement seat 2. The top side of the movable pressure claw 53 of the pressure claw mechanism 5 presses against the workpiece 3 on the product placement seat 2. The pressure claw mechanism is used to clamp the workpiece. However, the simple pressure claw mechanism cannot effectively guarantee the stability of the workpiece during processing. At this time, it is combined with the force-applying pressing mechanism to realize the multi-directional restriction of the workpiece, thereby ensuring the clamping stability of the workpiece.

[0042] In some other embodiments, a lead screw sliding mechanism 6 is also included. The sliding seat 61 of the lead screw sliding mechanism 6 is fixed to the bottom of the three-axis rocker table 1. The sliding seat 61 carries the three-axis rocker table 1 to or away from the external grinding wheel machining center, which facilitates the loading or unloading process of the machining center.

[0043] In some other specific embodiments, the three-axis swing table 1 includes a base 11, a first swing table 12, a second swing table 13, and a third swing table 14. The base 11 is fixedly connected to the sliding seat 61. The top two sides of the base 11 are provided with screw holes. The bottom two sides of the first swing table 12 are provided with ear plates 17. The ear plates 17 are provided with arc-shaped slots 18. Locking bolts for connecting screw holes are provided in the arc-shaped slots 18. A washer 15 to increase the contact area is provided between the locking bolt and the top surface of the ear plate 17. The tightness of the locking bolt is used to limit the rotation angle of the first swing table 12 corresponding to the Z-axis. The top of the first swing table 12 is provided with an arc-shaped recessed groove 121. The bottom of the second swing table 13 is provided with a protrusion 131 embedded in the recessed groove. A first abutting strip 19 is provided between the protrusion 131 and the side wall of the recessed groove 121. The side wall of the second swing platform 13 is provided with a bolt hole that passes through the recessed groove 121. A bolt is connected in the bolt hole to adjust the degree of the first abutting strip 19 against the protrusion. The first abutting strip 19 is used to limit the rotation angle of the second swing platform 13 corresponding to the X-axis. The top of the second swing platform 13 is provided with an arc-shaped recessed groove 132 perpendicular to the direction of the protrusion. The bottom of the third swing platform 14 is provided with a guide block 141 embedded in the recessed groove. A second abutting strip 110 is provided between the side wall of the recessed groove 132 and the guide block 141. The side wall of the second swing platform 13 is provided with a screw hole that passes through the recessed groove 132. A bolt is connected in the corresponding screw hole to adjust the degree of the second abutting strip 110 against the guide block. The second abutting strip 110 is used to limit the rotation angle of the third swing platform 14 corresponding to the Y-axis. The top surface of the third swing platform 14 is the top surface of the three-axis swing platform 1.

[0044] Based on the three-axis oscillating table setup, the workpiece's attitude can be adjusted along the x, y, and z axes.

[0045] In some other specific embodiments, the base 11 is provided with an arc-shaped ruler 111 for adjusting the angle of the first swing platform 12, and the side walls of the first swing platform 12 and the second swing platform 13 are provided with scale lines 16 for adjusting the swing angle of the adjacent upper swing platforms, which facilitates the subsequent high-precision swing angle adjustment of the swing platforms.

[0046] In some other embodiments, the product placement seat 2 is provided with a V-shaped workpiece holding part 21, and a supporting surface 22 is provided on one side of the product placement seat 2 corresponding to the workpiece holding part. The supporting surface 22 is provided with multiple chip removal grooves 221, and the resistance end of the force lever 43 is located on the other side of the product placement seat 2 corresponding to the workpiece holding part 21.

[0047] The workpiece clamped by this device is triangular.

[0048] In other embodiments, the force-applying pressing mechanism 4 includes a pressing cylinder 41, a pressing cylinder fixing seat 42, and a force-applying lever 43. The pressing cylinder fixing seat 42 is fixed on the top surface of the three-axis rocking table 1. The pressing cylinder 41 is fixedly connected to the pressing cylinder fixing seat 42. A wedge block 44 is fixed to the extended end of the pressing cylinder 41. A roller 45 is rotatably connected to the power end of the force-applying lever 43. The roller 45 rolls in contact with the inclined surface of the wedge block 44. The resistance end of the force-applying lever 43 is provided with a pressing block 46 for laterally pressing the workpiece.

[0049] The side of the fulcrum of the lever 43 closest to the power end is the power arm 431, and the side of the fulcrum of the lever 43 closest to the resistance end is the resistance arm 432. The length of the resistance arm 432 is smaller than that of the power arm 431.

[0050] This device, based on the lever's tumbling action, can achieve the effect of small torque input and large torque output, enabling lateral clamping of the workpiece with large torque, ensuring the workpiece's positional stability during processing, and thus guaranteeing subsequent processing accuracy and quality.

[0051] In other embodiments, the resistance end of the force-applying lever 43 is hinged to the pressure block 46, and the product placement seat 2 is provided with a groove 23 for the pressure block to slide. The pressure block 46 is located on one end of the workpiece 3 and can be close to or away from the workpiece.

[0052] In some other specific embodiments, the pressure claw mechanism 5 includes a pressure claw cylinder 51, a pressure claw bracket 52, and a movable pressure claw 53. The cylinder seat of the pressure claw cylinder 51 is hinged to the pressure cylinder fixing seat 42. The pressure claw bracket 52 is fixed to the side of the product placement seat 2. The movable pressure claw 53 is hinged to the pressure claw bracket 52. The telescopic end of the pressure claw cylinder 51 is hinged to one end of the movable pressure claw 53. The other end of the movable pressure claw 53 is used to press against the workpiece 3.

[0053] This device achieves stable and reliable clamping of the workpiece based on the force-applying and pressing mechanism and the clamping claw mechanism, avoiding workpiece runout and deviation during processing, thereby ensuring the processing quality of the workpiece. The three-axis swing table can change the posture of the workpiece without adjusting the clamping position of the workpiece, which can meet the multi-angle processing requirements of the workpiece.

[0054] The apparatus and methods disclosed in the embodiments are described simply because they correspond to the methods disclosed in the embodiments. For relevant details, please refer to the method section.

[0055] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fixture with adjustable workpiece machining surface angle, characterized in that, include: A three-axis swing table (1) is provided with a product placement seat (2) fixedly connected to the top surface of the three-axis swing table (1). The product placement seat (2) is used to support the workpiece (3) to be processed. A force-applying pressing mechanism (4) is detachably connected to the top surface of the three-axis rocking table (1). The force-applying pressing mechanism (4) is provided with a force-applying lever (43). The fulcrum of the force-applying lever (43) is located on one side of the product placement seat (2). The resistance end of the force-applying lever (43) is used to laterally press against the workpiece (3) on the product placement seat (2). A pressure claw mechanism (5) is provided on the side of the product placement seat (2), and the top side of the movable pressure claw (53) of the pressure claw mechanism (5) presses against the workpiece (3) on the product placement seat (2).

2. The fixture for adjusting the angle of the workpiece machining surface according to claim 1, characterized in that, It also includes a lead screw sliding mechanism (6), the sliding seat (61) of which is fixed to the bottom of the three-axis rocker table (1), and the sliding seat (61) carries the three-axis rocker table (1) to or away from the external grinding wheel machining center.

3. The tool of claim 2, wherein: The three-axis swing table (1) includes a base (11), a first swing table (12), a second swing table (13), and a third swing table (14). The base (11) is fixedly connected to the sliding seat (61). The top two sides of the base (11) are provided with screw holes. The bottom two sides of the first swing table (12) are provided with ear plates (17). The ear plates (17) are provided with arc-shaped slots (18). The arc-shaped slots (18) are provided with locking bolts for connecting screw holes. The locking bolts are connected to the screw holes. A gasket (15) is provided between the top surfaces of the ear plates (17) to increase the contact area. The tightness of the locking bolt is used to limit the rotation angle of the first swing platform (12) corresponding to the Z-axis. The top of the first swing platform (12) is provided with an arc-shaped recessed groove (121). The bottom of the second swing platform (13) is provided with a protrusion (131) embedded in the recessed groove. A first abutting strip (19) is provided between the protrusion (131) and the side wall of the recessed groove (121). The first swing platform (12) The side wall of the third swing platform (13) is provided with bolt holes that pass through the recessed groove (121). Bolts for adjusting the tightness of the first abutting strip (19) against the protrusion are connected to the bolt holes. The first abutting strip (19) is used to limit the rotation angle of the second swing platform (13) corresponding to the X-axis. The top of the second swing platform (13) is provided with an arc-shaped recessed groove (132) perpendicular to the protrusion. The bottom of the third swing platform (14) is provided with a guide block (141) embedded in the recessed groove. A second abutting strip (110) is provided between the side wall of the second swing platform (132) and the guide block (141). The side wall of the second swing platform (13) is provided with a screw hole that passes through the recessed groove (132). A bolt for adjusting the degree of the second abutting strip (110) pressing against the guide block is connected in the corresponding screw hole. The second abutting strip (110) is used to limit the rotation angle of the third swing platform (14) corresponding to the Y axis. The top surface of the third swing platform (14) is the top surface of the three-axis swing platform (1).

4. The tool of claim 3, wherein: The base (11) is provided with an arc-shaped ruler (111) for adjusting the angle with reference to the first swing platform (12). The side walls of the first swing platform (12) and the second swing platform (13) are provided with scale lines (16) for adjusting the swing angle with reference to the adjacent upper swing platforms.

5. The tool of claim 1 wherein, The product placement seat (2) is provided with a V-shaped workpiece holding part (21). The product placement seat (2) is provided with a support surface (22) on one side corresponding to the workpiece holding part. The support surface (22) is provided with multiple chip removal grooves (221). The resistance end of the force lever (43) is located on the other side of the product placement seat (2) corresponding to the workpiece holding part (21).

6. The tool of claim 1 wherein, The force-applying pressing mechanism (4) includes a pressing cylinder (41), a pressing cylinder fixing seat (42), and a force-applying lever (43). The pressing cylinder fixing seat (42) is fixed on the top surface of the three-axis rocking table (1). The pressing cylinder (41) is fixedly connected to the pressing cylinder fixing seat (42). A wedge (44) is fixed to the extended end of the pressing cylinder (41). A roller (45) is rotatably connected to the power end of the force-applying lever (43). The roller (45) makes rolling contact with the inclined surface of the wedge (44). A pressing block (46) for laterally pressing the workpiece is provided at the resistance end of the force-applying lever (43).

7. The tool of claim 6, wherein: The side of the fulcrum of the lever (43) closest to the power end is the power arm (431), and the side of the fulcrum of the lever (43) closest to the resistance end is the resistance arm (432). The length of the resistance arm (432) is smaller than that of the power arm (431).

8. The tool of claim 6, wherein: The resistance end of the force-applying lever (43) is hinged to the pressure block (46). The product placement seat (2) is provided with a groove (23) for the pressure block to slide. The pressure block (46) is located on one end of the workpiece (3) and can be close to or away from the workpiece.

9. The tool of claim 6, wherein: The pressure claw mechanism (5) includes a pressure claw cylinder (51), a pressure claw bracket (52), and a movable pressure claw (53). The cylinder seat of the pressure claw cylinder (51) is hinged to the pressure cylinder fixing seat (42). The pressure claw bracket (52) is fixed to the side of the product placement seat (2). The movable pressure claw (53) is hinged to the pressure claw bracket (52). The telescopic end of the pressure claw cylinder (51) is hinged to one end of the movable pressure claw (53). The other end of the movable pressure claw (53) is used to press against the workpiece (3).

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