Machining center positioning tool clamp

Abstract

The utility model provides a positioning tool clamp of a machining center, and belongs to the technical field of positioning tools. The machining center positioning tool clamp comprises a mounting frame, a positioning plate, a clamping plate, a lifting plate, an air cylinder, a first supporting plate, a lead screw, a moving plate and a positioning rod. By rotating the lead screw, the lead screw drives the moving plate and the positioning rods to move, so that the positioning rods can move between the clamping plate and the positioning plate, the two positioning rods can position the two rectangular workpieces correspondingly, and the two rectangular workpieces are located on the same datum plane; the two rectangular workpieces can be conveniently machined by the machining center at the same time, and then the two rectangular workpieces can be machined only by conducting tool setting on the machining center at a time, so that the machining efficiency of the machining center is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of positioning tooling, and in particular relates to a positioning tooling fixture for a machining center. Background Art

[0002] In the prior art, when a rectangular workpiece is subjected to groove milling or surface milling processing by a machining center, the rectangular workpiece is usually clamped and positioned by a fixture.

[0003] The prior art (publication number: CN216006072U) discloses a positioning fixture for a processing center of electroplated parts. The utility model has the following beneficial effects: by setting a rotating table, the processing position and angle of the electroplated parts can be rotated to adjust, making the utility model more practical; by setting a telescopic plate, electroplated parts of different specifications can be clamped and fixed, and in actual use, it is more suitable for the field of electroplated parts processing technology.

[0004] In the prior art, when the telescopic plate clamps the two sides of the rectangular workpiece, the end of the rectangular workpiece is not positioned. Therefore, multiple products are used to position and clamp the multiple rectangular workpieces respectively, and it is impossible to ensure that the multiple rectangular workpieces are on the same reference plane. As a result, when the machining center performs milling or milling on multiple rectangular workpieces, each rectangular workpiece needs to be tool-set, which increases the number of tool-settings and further reduces the machining efficiency of the machining center. Utility Model Content

[0005] In order to solve the problem in the above-mentioned prior art that when the telescopic plate clamps the two sides of the rectangular workpiece, the ends of the rectangular workpiece are not positioned, and therefore multiple products are used to position and clamp the multiple rectangular workpieces respectively, which cannot ensure that the multiple rectangular workpieces are on the same reference plane, resulting in the need to align the tool for each rectangular workpiece when the machining center performs milling or milling processing on multiple rectangular workpieces, which increases the number of tool alignments and thus reduces the machining efficiency of the machining center. The utility model provides a machining center positioning fixture, which uses a rotating screw to drive the moving plate and the positioning rod to move, so that the positioning rod can move between the clamping plate and the positioning plate, so that the two positioning rods can position the two rectangular workpieces respectively, so that the two rectangular workpieces are on the same reference plane, so that the machining center can process the two rectangular workpieces at the same time, and then only needs to align the tool once for the machining center to process the two rectangular workpieces, so as to improve the machining efficiency of the machining center. Its specific technical scheme is:

[0006] A positioning fixture for a machining center, the positioning fixture for a machining center comprises: a mounting frame, a positioning plate, a clamping plate, a lifting plate, a cylinder, a first supporting plate, a lead screw, a movable plate and a positioning rod; the positioning plate is L-shaped, two positioning plates are fixed on both sides of the mounting frame, and there is a spacing between the two positioning plates; one side of the clamping plate is inclined, the two clamping plates are placed on the mounting frame, the two clamping plates are located between the two positioning plates, and the inclined surfaces of the two clamping plates are arranged oppositely; both sides of the lifting plate are inclined, the lifting plate is located between the two clamping plates, and the inclined surfaces of the lifting plate and the clamping plates are aligned with each other. The inclined surfaces fit together; the cylinder is provided with an output shaft, the cylinder is fixed at the bottom of the mounting frame, and the output shaft of the cylinder is connected to the lifting plate; the two first support plates are fixed on one side of the mounting frame, and there is a spacing between the two first support plates; the outer wall of the lead screw is provided with an external thread, and the two ends of the lead screw are respectively rotatably connected with the two first support plates; a threaded hole is provided in the movable plate, and an internal thread is provided in the threaded hole, and the lead screw passes through the threaded hole of the movable plate; two positioning rods are connected to the movable plate, and the positioning rods are located between the positioning plate and the clamping plate; wherein the external thread is adapted to the internal thread.

[0007] In addition, the machining center positioning fixture in the above technical solution provided by the utility model may also have the following additional technical features:

[0008] In the above technical solution, the machining center positioning fixture also includes: a second support plate and a light bar; the two second support plates are fixed on the other side of the mounting frame, and there is a gap between the two second support plates; the two ends of the light bar are respectively connected to the two second support plates, and the light bar passes through the movable plate.

[0009] In the above technical solution, the machining center positioning fixture also includes: a handwheel; the handwheel is sleeved on the outside of the lead screw, and the handwheel is located on the outside of the first support plate.

[0010] In the above technical solution, the machining center positioning fixture also includes: a slide groove and a slider; the slide groove is arranged on the top of the mounting frame; the slider is connected to the bottom of the clamping plate, and the slider is embedded in the slide groove.

[0011] In the above technical solution, the machining center positioning fixture further includes: a spring; one end of the spring is connected to the positioning plate, and the other end of the spring is connected to the clamping plate.

[0012] In the above technical solution, the machining center positioning fixture also includes: a first positioning groove and a second positioning groove; the first positioning groove is arranged on the top of the positioning plate; the second positioning groove is arranged on the top of the clamping plate, and the second positioning groove is opposite to the first positioning groove.

[0013] In the above technical solution, the machining center positioning fixture further includes: a mounting groove; the mounting groove is U-shaped, and at least two mounting grooves are arranged on both sides of the mounting frame.

[0014] Compared with the prior art, the present invention provides a machining center positioning fixture with the following beneficial effects:

[0015] 1. By rotating the lead screw, the lead screw drives the moving plate and the positioning rod to move, so that the positioning rod can move between the clamping plate and the positioning plate, so that the two positioning rods can position the two rectangular workpieces respectively, so that the two rectangular workpieces are on the same reference plane, so that the machining center can process the two rectangular workpieces at the same time, and then only one tool setting is required for the machining center to process the two rectangular workpieces, so as to improve the machining efficiency of the machining center.

[0016] 2. By fixing two second support plates on the other side of the mounting frame, the two ends of the optical bar are respectively connected to the two second support plates, so that the two second support plates support the optical bar, thereby improving the stability of the optical bar; by passing the optical bar through the movable plate, the movable plate can be moved along the optical bar, thereby preventing the movable plate from shifting during movement, thereby improving the stability of the movable plate.

[0017] 3. By putting a handwheel on the outside of the lead screw and making the handwheel located on the outside of the first support plate, the lead screw can be driven to rotate by turning the handwheel, thereby reducing the difficulty of rotating the lead screw and improving the user experience of the product.

[0018] 4. By setting the slide groove at the top of the mounting frame, connecting the slider with the bottom of the clamping plate, and embedding the slider into the slide groove, the clamping plate can be moved along the slide groove through the slider, thereby avoiding the clamping plate from shifting during movement, so as to improve the stability of the clamping plate movement.

[0019] 5. When the lifting plate presses the clamping plate to move outward, and the clamping plate cooperates with the positioning plate to clamp the rectangular workpiece, the spring is in a compressed state. When the lifting plate moves upward and there is a gap between the lifting plate and the clamping plate, the spring resets and drives the clamping plate to move toward the lifting plate, thereby achieving the fit between the clamping plate and the lifting plate, and facilitating the removal of the rectangular workpiece from between the positioning plate and the clamping plate, so as to enhance the product experience.

[0020] 6. By setting the first positioning groove on the top of the positioning plate, setting the second positioning groove on the top of the clamping plate, and making the second positioning groove opposite to the first positioning groove, the two ends of the rectangular workpiece can be respectively embedded in the first positioning groove and the second positioning groove, thereby improving the stability of the rectangular workpiece.

[0021] 7. By arranging at least two U-shaped mounting grooves on both sides of the mounting frame, the mounting frame can be connected to the workbench of the machining center through multiple mounting grooves to improve the assembly efficiency of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A top view of a positioning fixture for a machining center according to the utility model;

[0023] Figure 2 for Figure 1 AA section view;

[0024] Figure 3 for Figure 2 A partial enlarged view of point B;

[0025] in, Figures 1 to 3 The corresponding relationship between the reference numerals and component names in the figure is:

[0026] 10 mounting frame, 11 positioning plate, 12 clamping plate, 13 lifting plate, 14 cylinder, 15 first supporting plate, 16 lead screw, 17 moving plate, 18 positioning rod, 19 second supporting plate, 20 light rod, 21 hand wheel, 22 slide groove, 23 slider, 24 spring, 25 first positioning groove, 26 second positioning groove, 27 mounting groove, 28 rectangular workpiece. DETAILED DESCRIPTION

[0027] The following is a combination of specific implementation cases and attached Figure 1-Figure 3 The present invention is further described below, but the present invention is not limited to these embodiments.

[0028] A machining center positioning fixture, such as Figures 1 to 3 As shown, the positioning fixture of the machining center includes: a mounting frame 10, a positioning plate 11, a clamping plate 12, a lifting plate 13, a cylinder 14, a first support plate 15, a lead screw 16, a movable plate 17 and a positioning rod 18; the positioning plate 11 is L-shaped, and two positioning plates 11 are fixed on both sides of the mounting frame 10, and there is a gap between the two positioning plates 11; one side of the clamping plate 12 is inclined, and the two clamping plates 12 are placed on the mounting frame 10, and the two clamping plates 12 are located between the two positioning plates 11, and the inclined surfaces of the two clamping plates 12 are arranged opposite to each other; both sides of the lifting plate 13 are inclined, and the lifting plate 13 is located between the two clamping plates 12, and the inclined surfaces of the lifting plate 13 and the clamping plates 12 are aligned with each other. The inclined surfaces fit together; the cylinder 14 is provided with an output shaft, the cylinder 14 is fixed at the bottom of the mounting frame 10, and the output shaft of the cylinder 14 is connected to the lifting plate 13; the two first support plates 15 are fixed on one side of the mounting frame 10, and there is a spacing between the two first support plates 15; the outer wall of the lead screw 16 is provided with an external thread, and the two ends of the lead screw 16 are respectively rotatably connected with the two first support plates 15; the movable plate 17 is provided with a threaded hole, and the threaded hole is provided with an internal thread, and the lead screw 16 passes through the threaded hole of the movable plate 17; two positioning rods 18 are connected to the movable plate 17, and the positioning rod 18 is located between the positioning plate 11 and the clamping plate 12; wherein, the external thread is adapted to the internal thread.

[0029] By fixing two L-shaped positioning plates 11 on the mounting frame 10 and allowing a spacing between the two positioning plates 11, the mounting frame 10 can support the two positioning plates 11; by placing two clamping plates 12 on the mounting frame 10 and positioning the two clamping plates 12 between the two positioning plates 11, the clamping plates 12 can slide on the mounting frame 10, so that the clamping plates 12 cooperate with the positioning plates 11 to clamp the rectangular workpiece 28. By locating the lifting plate 13 between the two clamping plates 12, the inclined surface of the lifting plate 13 fits the inclined surface of the clamping plate 12, so that when the lifting plate 13 moves downward, the lifting plate 13 presses the two lifting plates 13 to move to both sides; by fixing the cylinder 14 at the bottom of the mounting frame 10 and connecting the output shaft of the cylinder 14 to the lifting plate 13, the output shaft of the cylinder 14 drives the lifting plate 13 to move up and down. By fixing the two first support plates 15 on one side of the mounting frame 10, the two ends of the lead screw 16 are rotatably connected to the two first support plates 15 respectively, so that the two first support plates 15 support the lead screw 16, so that the lead screw 16 can rotate between the two first support plates 15; by passing the lead screw 16 through the threaded hole of the movable plate 17, the two positioning rods 18 are connected to the movable plate 17, and the positioning rods 18 are located between the positioning plate 11 and the clamping plate 12, so that the lead screw 16 is threadedly connected to the movable plate 17, and the two positioning rods 18 are moved synchronously with the movable plate 17, so that when the lead screw 16 rotates, the lead screw 16 drives the movable plate 17 and the positioning rod 18 to move, and then the positioning rod 18 moves between the positioning plate 11 and the clamping plate 12, so as to position the rectangular workpiece 28 located between the positioning plate 11 and the clamping plate 12.

[0030] When the product is used, the lead screw 16 is first rotated to make the lead screw 16 drive the moving plate 17 and the positioning rod 18 to move, so as to adjust the position of the positioning rod 18 between the positioning plate 11 and the clamping plate 12; then, the rectangular workpiece 28 is placed between the positioning plate 11 and the clamping plate 12, and one side of the rectangular workpiece 28 is fitted with the positioning rod 18, so as to realize the positioning of the rectangular workpiece 28; then, the cylinder 14 is started to make the cylinder 14 drive the lifting plate 13 to move downward, so that the lifting plate 13 presses the clamping plate 12 to move outward, and then the clamping plate 12 and the positioning plate 11 cooperate to clamp the rectangular workpiece 28, so as to improve the stability of the rectangular workpiece 28, so as to facilitate the machining center to process the two rectangular workpieces 28;

[0031] By adopting the above structure, the lead screw 16 is rotated to drive the movable plate 17 and the positioning rod 18 to move, so that the positioning rod 18 can move between the clamping plate 12 and the positioning plate 11, so that the two positioning rods 18 can respectively position the two rectangular workpieces 28, thereby realizing that the two rectangular workpieces 28 are on the same reference plane, so that the machining center can process the two rectangular workpieces 28 at the same time, and then only one tool setting is required for the machining center to process the two rectangular workpieces 28, thereby improving the machining efficiency of the machining center.

[0032] In the embodiments of the present invention, Figures 1 to 3 As shown, the machining center positioning fixture also includes: a second support plate 19 and a light bar 20; the two second support plates 19 are fixed on the other side of the mounting frame 10, and there is a spacing between the two second support plates 19; the two ends of the light bar 20 are respectively connected to the two second support plates 19, and the light bar 20 passes through the movable plate 17.

[0033] By fixing the two second support plates 19 on the other side of the mounting frame 10, the two ends of the optical bar 20 are respectively connected to the two second support plates 19, so that the two second support plates 19 support the optical bar 20, thereby improving the stability of the optical bar 20; by passing the optical bar 20 through the movable plate 17, the movable plate 17 can be moved along the optical bar 20, thereby preventing the movable plate 17 from deflecting during movement, thereby improving the stability of the movable plate 17.

[0034] In the embodiments of the present invention, Figures 1 to 3 As shown, the machining center positioning fixture further includes a hand wheel 21 ; the hand wheel 21 is sleeved on the outside of the lead screw 16 , and the hand wheel 21 is located on the outside of the first support plate 15 .

[0035] By sleeved the handwheel 21 on the outside of the lead screw 16 and making the handwheel 21 located on the outside of the first support plate 15, the lead screw 16 can be rotated by rotating the handwheel 21, thereby reducing the difficulty of rotating the lead screw 16 and improving the user experience of the product.

[0036] In the embodiments of the present invention, Figures 1 to 3 As shown, the machining center positioning fixture further includes: a slide groove 22 and a slider 23 ; the slide groove 22 is arranged on the top of the mounting frame 10 ; the slider 23 is connected to the bottom of the clamping plate 12 , and the slider 23 is embedded in the slide groove 22 .

[0037] By setting the slide groove 22 at the top of the mounting frame 10, connecting the slider 23 to the bottom of the clamping plate 12, and embedding the slider 23 into the slide groove 22, the clamping plate 12 can be moved along the slide groove 22 through the slider 23, thereby avoiding the clamping plate 12 from deflecting during movement, so as to improve the stability of the movement of the clamping plate 12.

[0038] In the embodiments of the present invention, Figures 1 to 3 As shown, the machining center positioning fixture further includes: a spring 24 ; one end of the spring 24 is connected to the positioning plate 11 , and the other end of the spring 24 is connected to the clamping plate 12 .

[0039] By connecting one end of the spring 24 to the positioning plate 11 and the other end of the spring 24 to the clamping plate 12 , the positioning plate 11 supports the clamping plate 12 through the spring 24 .

[0040] By adopting the above-mentioned structures, when the lifting plate 13 presses the clamping plate 12 to move outward, and the clamping plate 12 cooperates with the positioning plate 11 to clamp the rectangular workpiece 28, the spring 24 is in a compressed state. When the lifting plate 13 moves upward and there is a gap between the lifting plate 13 and the clamping plate 12, the spring 24 is reset, and the spring 24 drives the clamping plate 12 to move toward the lifting plate 13, thereby achieving the clamping plate 12 and the lifting plate 13 to keep in contact, and facilitating the removal of the rectangular workpiece 28 from between the positioning plate 11 and the clamping plate 12, so as to enhance the product usage experience.

[0041] Specifically, a telescopic tube is disposed in the spring 24 , and two ends of the telescopic tube are respectively connected to the positioning plate 11 and the clamping plate 12 .

[0042] In the embodiments of the present invention, Figures 1 to 3 As shown, the machining center positioning fixture also includes: a first positioning groove 25 and a second positioning groove 26; the first positioning groove 25 is arranged on the top of the positioning plate 11; the second positioning groove 26 is arranged on the top of the clamping plate 12, and the second positioning groove 26 is opposite to the first positioning groove 25.

[0043] By setting the first positioning groove 25 at the top of the positioning plate 11 and the second positioning groove 26 at the top of the clamping plate 12, and making the second positioning groove 26 opposite to the first positioning groove 25, the two ends of the rectangular workpiece 28 can be respectively embedded in the first positioning groove 25 and the second positioning groove 26, thereby improving the stability of the rectangular workpiece 28.

[0044] In the embodiments of the present invention, Figures 1 to 3 As shown, the machining center positioning fixture further includes: a mounting groove 27 ; the mounting groove 27 is U-shaped, and at least two mounting grooves 27 are arranged on both sides of the mounting frame 10 .

[0045] By arranging at least two U-shaped mounting grooves 27 on both sides of the mounting frame 10 , the mounting frame 10 can be connected to the workbench of the machining center through the multiple mounting grooves 27 , so as to improve the assembly efficiency of the product.

[0046] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise clearly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention. The terms "connection", "installation", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the description of the present invention, the terms "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A positioning fixture for a machining center, characterized in that: The machining center positioning fixture comprises: Mounting frame; A positioning plate, wherein the positioning plate is L-shaped, two positioning plates are fixed on both sides of the mounting frame, and there is a distance between the two positioning plates; A clamping plate, one side of which is an inclined surface, two of which are placed on the mounting frame, the two clamping plates are located between the two positioning plates, and the inclined surfaces of the two clamping plates are arranged opposite to each other; A lifting plate, both sides of which are inclined surfaces, the lifting plate is located between the two clamping plates, and the inclined surfaces of the lifting plate are in contact with the inclined surfaces of the clamping plates; A cylinder, wherein the cylinder is provided with an output shaft, the cylinder is fixed to the bottom of the mounting frame, and the output shaft of the cylinder is connected to the lifting plate; A first support plate, wherein two of the first support plates are fixed on one side of the mounting frame, and a distance is provided between the two first support plates; A lead screw, wherein an external thread is arranged on an outer wall of the lead screw, and both ends of the lead screw are rotatably connected to the two first support plates respectively; A movable plate, wherein a threaded hole is provided in the movable plate, wherein an internal thread is provided in the threaded hole, and the lead screw passes through the threaded hole of the movable plate; Positioning rods, two of which are connected to the moving plate, and the positioning rods are located between the positioning plate and the clamping plate; Wherein, the external thread is matched with the internal thread.

2. A machining center positioning fixture according to claim 1, characterized in that: The machining center positioning fixture also includes: A second support plate, two of the second support plates are fixed on the other side of the mounting frame, and there is a distance between the two second support plates; An optical bar, both ends of which are respectively connected to the two second support plates, and the optical bar passes through the moving plate.

3. A machining center positioning fixture according to claim 2, characterized in that: The machining center positioning fixture also includes: A handwheel is sleeved on the outside of the lead screw and is located on the outside of the first support plate.

4. A machining center positioning fixture according to claim 1, characterized in that: The machining center positioning fixture also includes: A slide groove, the slide groove is arranged on the top of the mounting frame; A sliding block is connected to the bottom of the clamping plate and is embedded in the sliding groove.

5. A machining center positioning fixture according to claim 4, characterized in that: The machining center positioning fixture also includes: A spring, one end of which is connected to the positioning plate, and the other end of which is connected to the clamping plate.

6. A machining center positioning fixture according to claim 5, characterized in that: The machining center positioning fixture also includes: A first positioning groove, wherein the first positioning groove is arranged on the top of the positioning plate; A second positioning groove is disposed on the top of the clamping plate, and the second positioning groove is opposite to the first positioning groove.

7. A machining center positioning fixture according to any one of claims 1 to 6, characterized in that: The machining center positioning fixture also includes: The mounting groove is U-shaped, and at least two of the mounting grooves are arranged on both sides of the mounting frame.

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