Multi-station quick-mounting fixture

Abstract

The utility model relates to the field of tool fixture, specifically disclose a kind of multi-station quick mounting fixture, comprising: pedestal, installation groove is set up on pedestal, expansion assembly is installed in installation groove, expansion assembly includes U-shaped plate, briquetting and adjusting bolt, adaptive block is installed in the side portion of U-shaped plate;Two stations are formed in the installation groove by U-shaped plate, the two sides of U-shaped plate are clamped simultaneously by briquetting by tightening adjusting bolt, so as to improve the clamping efficiency, and it has smaller installation structure;The adaptive block of the outside of U-shaped plate corresponding with locating surface can be automatically attached to workpiece surface, so as to guarantee the contact area when clamping, so that clamping is more stable.

Description

Technical Field

[0001] This utility model belongs to the field of tooling fixtures, and specifically relates to a multi-station quick-assembly fixture. Background Technology

[0002] When milling the top surface of small, block-shaped parts, a fixture is required for side clamping. However, the clamping process often uses individual clamping, which leads to low clamping efficiency. Although using a single pressure plate for overall clamping improves efficiency, it can cause multiple workpieces to be scrapped in batches and result in unstable clamping when encountering large errors in the clamping surfaces of each part, inaccurate positioning, or tool breakage. Furthermore, when clamping from the side, the fixture usually uses a screw-slider mechanism, which occupies too much structural space and is not conducive to clamping small parts.

[0003] Patent document with application number "CN2021228769814" discloses a multi-station milling fixture device, including a base plate and a fixture mounted on the base plate. A first clamping plate is slidably connected to the fixture, and a second clamping plate is fixedly connected to the fixture. By sliding the first clamping plate, the first clamping plate is brought closer to the second clamping plate, thereby clamping the workpiece. An electric push rod is provided on the second clamping plate. This prior art document uses a traditional screw-slider mechanism to clamp parts, which occupies a large structural space, has low space utilization, and requires individual clamping at multiple stations, resulting in low efficiency during clamping.

[0004] The above background information is provided only to assist in understanding the utility model concept and technical solution of this utility model, and it does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed on the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-station quick-assembly fixture, thereby overcoming the shortcomings of existing tooling when clamping small parts, such as low clamping efficiency, large space occupation of clamping structure, and unstable clamping when clamping simultaneously.

[0006] To achieve the above objectives, this utility model provides a multi-station quick-assembly fixture, including a base with several mounting slots. Positioning surfaces are provided on both sides of each mounting slot. Several expansion components are provided in the middle of each mounting slot. Each expansion component includes a pressure block and a U-shaped plate. The pressure block is mounted on the base via adjusting bolts and is located at the opening of the U-shaped plate. The two sides of the pressure block abut against the inner surface of the U-shaped plate. When the adjusting bolts are tightened, the pressure block can move downwards and push the outer side of the U-shaped plate towards both sides of the mounting slot. A rotatable adaptive block is provided on the outer side of the U-shaped plate corresponding to the position of the positioning surface.

[0007] Preferably, in the above technical solution, a clearance groove is provided at the bottom of the mounting groove, the clearance groove is aligned with the direction of the mounting groove, the U-shaped plate is installed in the clearance groove, and there is a certain gap between the outer side of the U-shaped plate and the side wall of the clearance groove.

[0008] Preferably, in the above technical solution, a limiting groove is provided at the bottom of the clearance groove, the limiting groove is aligned with the direction of the mounting groove, and the bottom of the U-shaped plate can be locked in the limiting groove.

[0009] Preferably, in the above technical solution, the pressure block is provided with a first inclined surface on both sides, and a second inclined surface is provided on the inner side of the U-shaped plate. The second inclined surface and the first inclined surface are in contact with each other, so that the pressure block can be pushed upward when the two sides of the U-shaped plate are close to each other.

[0010] Preferably, in the above technical solution, an inwardly recessed arc groove is provided on the outer side of the U-shaped plate corresponding to the position of the positioning surface, and the axis of the arc groove is parallel to the direction of the mounting groove.

[0011] Preferably, in the above technical solution, the adaptive block includes a magnetic block and a pad. One side of the magnetic block is attracted to the outer side of the U-shaped plate and has an outwardly protruding arc surface. The arc surface is adapted to the arc groove and can rotate within the arc groove. The pad is fixedly connected to the other side of the magnetic block.

[0012] Preferably, the above technical solution further includes a conversion seat, which includes a tray and a connecting plate. One side of the connecting plate is fixedly connected to one side of the tray. The base is detachably mounted on the tray. The other side of the connecting plate is provided with a detachable T-shaped block.

[0013] Preferably, in the above technical solution, a detachable transition plate is provided on the support plate, and the base is detachably connected to the transition plate.

[0014] Preferably, in the above technical solution, a calibration block is provided on the connecting plate.

[0015] Preferably, in the above technical solution, a reinforcing rib is provided between the tray and the connecting plate.

[0016] Compared with existing technologies, this utility model has the following beneficial effects:

[0017] 1. The multi-station quick-assembly fixture of this utility model has multiple mounting slots. The U-shaped plate is installed in the mounting slot to form two stations. By tightening the adjusting bolts, the pressure block clamps the parts in the two stations simultaneously on both sides of the U-shaped plate, thereby improving the clamping efficiency and having a smaller installation structure. The self-adaptive block on the outside of the U-shaped plate corresponding to the positioning surface can automatically fit with the workpiece surface, thereby ensuring the contact area during clamping and making the clamping more stable.

[0018] 2. The pressure block in this utility model has a first inclined surface on both sides and a second inclined surface on the inner side of the U-shaped plate. When the pressure block is pressed down, the two sides of the U-shaped plate can separate and generate elastic deformation. When the two sides of the U-shaped plate approach each other due to the restoring force, they can squeeze the pressure outward. The automatic rebound effect can be formed without additional elastic components, making the structure simpler.

[0019] 3. The U-shaped plate in this utility model has an arc groove on its outer side. The adaptive block is composed of a magnetic block and a pad. The magnetic block attracts the side of the U-shaped plate for fixation. The arc surface and the arc groove cooperate with each other to rotate at a certain angle. It can adaptively adjust according to the clamping surface of the workpiece during clamping.

[0020] 4. The conversion seat in this utility model can change the installation position of the fixture, so that the multi-station quick-assembly fixture can be used on a horizontal machine tool. Attached Figure Description

[0021] Figure 1 This is a structural diagram of the multi-station quick-assembly fixture in Example 1.

[0022] Figure 2 This is a structural diagram of the base in Example 1.

[0023] Figure 3 This is a structural diagram of the U-shaped plate in Example 1.

[0024] Figure 4 This is a structural diagram of the pressure block in Example 1.

[0025] Figure 5 This is a structural diagram of the adaptive block in Example 1.

[0026] Figure 6 This is a structural diagram of the multi-station quick-assembly fixture in Example 2.

[0027] Explanation of key figure labels:

[0028] 100-Base, 110-Mounting groove, 111-Leaning groove, 112-Limiting groove, 120-Positioning surface;

[0029] 200-Expansion component, 210-Pressure block, 211-First inclined surface, 220-U-shaped plate, 221-Second inclined surface, 222-Circular arc groove, 230-Adjusting bolt;

[0030] 300 - Adaptive block, 310 - Magnetic block, 311 - Arc surface, 320 - Pad;

[0031] 400-Converter seat, 410-Pattern, 420-Connecting plate, 430-T-block, 440-Transition plate, 450-Alignment block, 460-Reinforcing rib. Detailed Implementation

[0032] 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.

[0033] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. Where the terms "first," "second," and "third" are used for descriptive purposes and to distinguish technical features, they should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.

[0036] Example 1

[0037] like Figures 1 to 5 As shown, the multi-station quick-assembly fixture in this embodiment includes: a base 100, a mounting groove 110, a clearance groove 111, a limiting groove 112, a positioning surface 120, an expansion component 200, a pressure block 210, a first inclined surface 211, a U-shaped plate 220, a second inclined surface 221, an arc groove 222, an adjusting bolt 230, an adaptive block 300, a magnetic block 310, an arc surface 311, and a pad 320.

[0038] The base 100 has multiple mounting slots 110, and a positioning surface 120 is provided on each side of the mounting slot 110. A clearance slot 111 is provided at the bottom of the mounting slot 110, and a limiting slot 112 is provided at the bottom of the clearance slot 111. The clearance slot 111 and the limiting slot 112 are aligned with the mounting slot 110. An expansion assembly 200 is installed in the limiting slot 112. The expansion assembly 200 includes a pressure block 210 and a U-shaped plate 220. The bottom of the U-shaped plate 220 can be locked in the limiting slot 112. The outer side of the U-shaped plate 220 is located in the clearance slot 111, and there is a certain gap between the outer side of the U-shaped plate 220 and the side wall of the clearance slot 111. The pressure block 210 can be adjusted... The adjusting bolt 230 is installed on the base 100 and located at the opening of the U-shaped plate 220. The pressure block 210 has a first inclined surface 211 on each side, with the normal of the first inclined surface sloping downward. A second inclined surface 221 is provided on the inner side of the U-shaped plate 220, with the normal of the second inclined surface sloping upward. The second inclined surface 221 and the first inclined surface 211 are in contact with each other. When the adjusting bolt 230 is tightened, the pressure block 210 moves downward, which can push the two sides of the U-shaped plate 220 outward and move them to the two sides of the mounting groove 110. When the adjusting bolt 230 is loosened, the restoring force generated by the deformation recovery of the two sides of the U-shaped plate 220 makes the two sides of the U-shaped plate 220 move closer to each other, thereby pushing the pressure block 210 upward.

[0039] Additionally, a rotatable adaptive block 300 is installed on the outer side of the U-shaped plate 220 corresponding to the position of the positioning surface 120. An inwardly recessed arc groove 222 is provided on the outer side of the U-shaped plate 220, with the axis of the arc groove 222 parallel to the direction of the mounting groove 110. The adaptive block 300 includes a magnetic block 310 and a pad 320. One side of the magnetic block 310 attracts the outer side of the U-shaped plate 220 and has an outwardly protruding arc surface 311. The arc surface 311 is adapted to the arc groove 222 and... The pad 320 is fixedly connected to the other side of the magnetic block 310 and can rotate within the arc groove 222. When clamping the workpiece, as the outer side of the U-shaped plate 220 expands outward, the pad 320 can contact the clamping surface of the workpiece. Since the adaptive block 300 can rotate along the axis of the arc groove 222, the slope of the side of the U-shaped plate 220 caused by the expansion can be eliminated, so that the clamping angle of the pad 320 can be automatically adjusted according to the clamping surface of the workpiece and fit tightly against it.

[0040] Example 2

[0041] like Figure 6 As shown, the multi-station quick-assembly fixture in this embodiment also includes a conversion base 400, which includes a support plate 410 and a connecting plate 420. One side of the connecting plate 420 is fixedly connected to one side of the support plate 410. A reinforcing rib 460 is welded between the support plate 410 and the connecting plate 420. A T-block 430 is bolted to the other side of the connecting plate 420. The T-block 430 allows the connecting plate 420 to be mounted on the worktable of the horizontal machining center, so that the support plate 410 and the worktable remain perpendicular to each other. A detachable transition plate 440 is mounted on the support plate 410. The base 100 is detachably connected to the transition plate 440 by bolts. A calibration block 450 is mounted on the connecting plate 420 to align the tooling angle.

[0042] In summary, the multi-station quick-assembly fixture of this utility model has multiple mounting slots 110. The U-shaped plate 220 is installed in the mounting slots 110 to form two stations. By tightening the adjusting bolts 230, the pressure block 210 clamps the parts in the two stations simultaneously on both sides of the U-shaped plate 220, thereby improving clamping efficiency and having a smaller installation structure. The adaptive block 300 on the outer side of the U-shaped plate 220 corresponding to the positioning surface 120 can automatically fit with the workpiece surface, thereby ensuring the contact area during clamping and making the clamping more stable. Furthermore, it can also be used on horizontal machining centers through the conversion seat 400, which has better compatibility.

[0043] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A multi-station quick-assembly fixture, comprising a base, wherein the base has a plurality of mounting slots, and positioning surfaces are respectively provided on both sides of the mounting slots, characterized in that: Several expansion components are provided in the middle of each of the mounting slots. Each expansion component includes a pressure block and a U-shaped plate. The pressure block is installed on the base by adjusting bolts and is located at the opening of the U-shaped plate. The two sides of the pressure block abut against the inner side of the U-shaped plate. When the adjusting bolts are tightened, the pressure block can move downwards and push the outer side of the U-shaped plate to move to both sides of the mounting slot. A rotatable adaptive block is provided on the outer side of the U-shaped plate corresponding to the position of the positioning surface.

2. The multi-station quick-assembly fixture according to claim 1, characterized in that, A clearance groove is provided at the bottom of the mounting groove, the clearance groove is aligned with the mounting groove, the U-shaped plate is installed in the clearance groove, and there is a certain gap between the outer side of the U-shaped plate and the side wall of the clearance groove.

3. The multi-station quick-assembly fixture according to claim 2, characterized in that, A limiting groove is provided at the bottom of the clearance groove, and the limiting groove is aligned with the direction of the mounting groove, so that the bottom of the U-shaped plate can be locked in the limiting groove.

4. The multi-station quick-assembly fixture according to claim 1, characterized in that, The pressure block has a first inclined surface on each side and a second inclined surface on the inner side of the U-shaped plate. The second inclined surface and the first inclined surface fit together. When the two sides of the U-shaped plate come close to each other, the pressure block can be pushed upward.

5. The multi-station quick-assembly fixture according to claim 1, characterized in that, An inwardly recessed arc groove is provided on the outer side of the U-shaped plate corresponding to the position of the positioning surface, and the axis of the arc groove is parallel to the direction of the mounting groove.

6. The multi-station quick-assembly fixture according to claim 5, characterized in that, The adaptive block includes a magnetic block and a pad. One side of the magnetic block attracts the outer side of the U-shaped plate and has an outwardly protruding arc surface. The arc surface is adapted to the arc groove and can rotate within the arc groove. The pad is fixedly connected to the other side of the magnetic block.

7. The multi-station quick-assembly fixture according to claim 1, characterized in that, It also includes a conversion seat, which includes a tray and a connecting plate. One side of the connecting plate is fixedly connected to one side of the tray. The base is detachably mounted on the tray. The other side of the connecting plate is provided with a detachable T-block.

8. The multi-station quick-assembly fixture according to claim 7, characterized in that, The tray is provided with a detachable transition plate, and the base is detachably connected to the transition plate.

9. The multi-station quick-assembly fixture according to claim 7, characterized in that, A calibration block is provided on the connecting plate.

10. The multi-station quick-assembly fixture according to claim 7, characterized in that, A reinforcing rib is provided between the tray and the connecting plate.

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