Special clamp for die production of numerical control vertical machining center

Abstract

The utility model discloses a special fixture for mould production of a numerical control vertical machining center, which relates to the technical field of mould clamping and comprises a bottom plate, a sliding groove is arranged at the top end of the bottom plate, an adjusting component is arranged on the inner wall of the sliding groove, and a clamping component is arranged at the top end of the bottom plate. The adjusting assembly comprises a two-way screw rod, the clamping assembly comprises two second sliding rods, the outer walls of the two second sliding rods are each slidably connected with two moving blocks, the outer walls of the four moving blocks are each fixedly provided with a second sliding block and a clamping plate, the bottom ends of the two second sliding rods are each fixedly provided with a rack, and a gear is arranged between the opposite sides of the two racks; the distance between the clamping plates can be adjusted through the adjusting assemblies, so that the clamping plates can adapt to clamping of molds with different lengths, the universality of the clamp is improved, the clamping assemblies can conduct multi-point synchronous clamping from the two sides of the molds, it is ensured that the molds are evenly stressed in the machining process, and the clamping effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould clamping technical field, concretely is a special fixture for mould production of numerical control vertical machining center. BACKGROUND

[0002] In the mould production process, the special fixture plays a key role. As an important part of fixing the mould, the fixture needs to ensure that the mould is stable during processing, accurate positioning, laying a foundation for subsequent complex milling, drilling and other processes, and the rationality of its design is directly related to the mould production efficiency and product quality.

[0003] In the prior art, such as a special fixture for numerical control vertical machining center in patent No. CN206286878U, which is suitable for track plate workpieces, including clamp base, left hole clamp positioning component, right hole clamp positioning component, workpiece, left positioning component, right positioning component, left hydraulic clamping component, right hydraulic clamping component; its characterized in that the clamp base includes bolt mounting hole, which is arranged on the numerical control vertical machining center workbench through bolt connection, and the workpiece is arranged on the upper part of the clamp base; the left hole clamp positioning component and the right hole clamp positioning component are symmetrically arranged on the upper part of the both ends of the clamp base; the positioning accuracy is improved, and the deformation of the track plate workpiece is reduced; the hydraulic clamping device is adopted, which is convenient and safe to operate.

[0004] Although the above-mentioned patent can clamp the workpiece, there are still some problems. The distance between the two clamping components is fixed, and the distance between the two clamping components cannot be adjusted, so it may not be able to adapt to clamping workpieces of different sizes, and multiple hydraulic rods need to be used to clamp the workpiece, which undoubtedly increases the cost of mould clamping. Therefore, the utility model provides a special fixture for mould production of numerical control vertical machining center. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a special fixture for mould production of numerical control vertical machining center, which solves the problem that the distance between the two clamping components is fixed, the distance between the two clamping components cannot be adjusted, so it may not be able to adapt to clamping workpieces of different sizes, and multiple hydraulic rods need to be used to clamp the workpiece, which undoubtedly increases the cost of mould clamping.

[0006] To achieve the above purpose, the utility model is realized by the following technical scheme: a special fixture for mould production of numerical control vertical machining center, comprising a bottom plate, a sliding groove is formed in the top end of the bottom plate, a placing table is fixedly installed at the top end of the bottom plate, an adjusting assembly is arranged on the inner wall of the sliding groove, and a clamping assembly is arranged at the top end of the bottom plate.

[0007] The adjusting assembly comprises a bidirectional screw rod, the bidirectional screw rod is rotationally installed on the inner wall of the sliding groove, and the top end of the bidirectional screw rod is provided with two machine housings;

[0008] The clamping assembly comprises two second sliding rods, two moving blocks are slidably connected to the outer walls of the two second sliding rods, second sliding blocks are fixedly installed on the outer walls of the four moving blocks, clamping plates are fixedly installed at the top ends of the four second sliding blocks, racks are fixedly installed at the bottom ends of the two second sliding rods, and a gear is arranged between the opposite sides of the two racks.

[0009] Preferably, first sliding rods are fixedly installed on the inner walls of the two machine housings, the four second sliding blocks are slidably connected to the two first sliding rods, and the four second sliding blocks are movably inserted into the inner walls of the two machine housings.

[0010] Preferably, the outer wall of the bidirectional screw rod is threadedly connected with two first sliding blocks, the two first sliding blocks are movably inserted into the inner wall of the sliding groove, the two first sliding blocks are fixedly connected to the two machine housings, a motor is fixedly installed on one side of the outer wall of the bottom plate, the output shaft of the motor penetrates through the inner wall of the sliding groove and is fixedly connected to one end of the outer wall of the bidirectional screw rod.

[0011] Preferably, a rotating shaft is rotationally installed at the bottom end of the placement table, the bottom end of the rotating shaft is fixedly connected to the gear, and the gear is meshingly arranged with the two racks.

[0012] Preferably, a mounting plate is fixedly installed at the top end of the bottom plate, a hydraulic rod is fixedly installed on the outer wall of the mounting plate, and the output end of the hydraulic rod is fixedly connected to one second sliding rod.

[0013] Preferably, two groups of through grooves are formed in the top end of the placement table, the two groups of through grooves are centrally and symmetrically distributed on the top end of the placement table, the two second sliding rods are arranged below the bottom end of the placement table, and the racks are arranged below the bottom ends of the second sliding rods.

[0014] Beneficial effects

[0015] The utility model provides a special fixture for die production of numerical control vertical machining center, which has the following beneficial effects compared with the prior art:

[0016] 1. The numerical control vertical machining center mold production special fixture, when needing clamping the mold, first place the mold on the placing table, then according to the length of the mold, start the motor, the motor drives the bidirectional screw to rotate, when the bidirectional screw rotates, it drives two machine housings to move, the machine housings drive the clamping assembly connected therewith to move synchronously, the clamping plate is moved to the corresponding through slot position, so that the clamping plate can adapt to the clamping of molds of different lengths, improve the versatility of the fixture, when the mold needs to be clamped, start the hydraulic rod, the hydraulic rod drives the second slide rod fixedly connected therewith to move, since the rack at the bottom end of the two second slide rods is engaged with the gear, when the second slide rod moves, the rack drives the gear to rotate, and then the other rack engaged therewith drives the corresponding second slide rod to move reversely, realizing the linkage opening and closing of the four clamping plates, so as to complete the fixed clamping of the mold, by adjusting the distribution distance between the clamping plates, the clamping assembly is synchronously clamped from both sides of the mold, ensuring that the mold is evenly stressed during machining, stable and immobile, accurate positioning, effectively avoiding displacement, deformation and other problems caused by unstable clamping or uneven stress of the mold, ensuring the machining precision of the mold, improving the product quality, and improving the clamping effect of the mold.

[0017] 2. The numerical control vertical machining center mold production special fixture, the hydraulic rod drives one second slide rod to move, then through the mutual cooperation of the gear and the rack, it can drive two clamping plates on the two second slide rods to move towards each other, clamping the mold, thereby reducing the number of hydraulic equipment used, reducing the mold clamping cost, and improving the economic benefit. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the utility model;

[0019] Figure 2 It is a related structure schematic view of the bottom plate of the utility model;

[0020] Figure 3 It is a section view schematic view of the placing table of the utility model;

[0021] Figure 4 It is another view section view schematic view of the placing table of the utility model;

[0022] Figure 5 It is a main body structure schematic view of the utility model.

[0023] In the drawing: 1, bottom plate; 2, sliding groove; 3, adjusting assembly; 31, bidirectional screw; 32, first sliding block; 33, machine housing; 34, motor; 35, first slide rod; 4, clamping assembly; 41, mounting plate; 42, hydraulic rod; 43, second slide rod; 44, second sliding block; 45, clamping plate; 46, moving block; 47, rotating shaft; 48, gear; 49, rack; 5, placing table; 6, through slot. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] The utility model provides two technical schemes:

[0026] Figures 1-5 The first embodiment is shown: a special fixture for mold production of numerical control vertical machining center, including bottom plate 1, the top of bottom plate 1 is provided with sliding slot 2, the top of bottom plate 1 is fixedly installed with placing table 5, the mold can be placed in the top of placing table 5 and is clamped, the inner wall of sliding slot 2 is provided with adjusting assembly 3, the top of bottom plate 1 is provided with clamping assembly 4;

[0027] Adjusting assembly 3 includes bidirectional screw rod 31, bidirectional screw rod 31 is rotatably installed in the inner wall of sliding slot 2, the top of bidirectional screw rod 31 is provided with two machine housings 33;

[0028] Clamping assembly 4 includes two second sliding rods 43, the outer wall of two second sliding rods 43 is slidably connected with two moving blocks 46, the outer wall of four moving blocks 46 is fixedly installed with second sliding block 44, the top of four second sliding blocks 44 is fixedly installed with clamping plate 45, moving block 46 can slide on second sliding rod 43, thereby drive the distance between clamping plate 45 to change, then second sliding rod 43 can push two moving blocks 46 and clamping plate 45 to move simultaneously, complete the clamping and fixing of the mold, the outer wall of clamping plate 45 can be provided with rubber pad, improve the friction force to the mold, the bottom of two second sliding rods 43 is fixedly installed with rack 49, when second sliding rod 43 moves, rack 49 can be driven to move, two racks 49 relative one side is provided with gear 48.

[0029] The inner wall of two machine housings 33 is fixedly installed with first sliding rod 35, two first sliding rods 35 are slidably connected with four second sliding blocks 44 respectively, four second sliding blocks 44 are movably inserted in the inner wall of two machine housings 33, so that second sliding block 44 can slide in machine housing 33.

[0030] The outer wall of the bidirectional screw 31 is threadedly connected with two first sliding blocks 32, the two first sliding blocks 32 are movably inserted into the inner wall of the sliding groove 2, the two first sliding blocks 32 are fixedly connected with two machine housings 33 respectively, the outer wall of the bottom plate 1 is fixedly installed with a motor 34 on one side, the output shaft of the motor 34 penetrates through the inner wall of the sliding groove 2 and is fixedly connected with one end of the outer wall of the bidirectional screw 31, the motor 34 can drive the bidirectional screw 31 to rotate, when the bidirectional screw 31 rotates, the two first sliding blocks 32 can be driven to move towards each other or move away from each other, and the first sliding block 32 can drive the machine housing 33 to move.

[0031] Figures 1-5 The second embodiment is shown, and the main difference from the first embodiment is that the bottom end of the placement table 5 is rotatably installed with a rotating shaft 47, the bottom end of the rotating shaft 47 is fixedly connected with a gear 48, the gear 48 is meshingly arranged with two racks 49 respectively, so that the gear 48 can rotate, when one rack 49 moves, the gear 48 can be driven to rotate, and the gear 48 can drive the other rack 49 to move in the opposite direction, thereby the two clamping plates 45 on the other side can clamp the mold on the placement table 5.

[0032] The top end of the bottom plate 1 is fixedly installed with a mounting plate 41, the outer wall of the mounting plate 41 is fixedly installed with a hydraulic rod 42, the output end of the hydraulic rod 42 is fixedly connected with one second sliding rod 43, the hydraulic rod 42 is prior art, and can drive one of the second sliding rods 43 to move.

[0033] The top end of the placement table 5 is penetrated with two groups of through grooves 6, the two groups of through grooves 6 are centrally and symmetrically distributed on the top end of the placement table 5, the width of the second sliding block 44 is smaller than the width of the through groove 6, so that the second sliding block 44 can move in the through groove 6, thereby the clamping plate 45 can clamp the mold above the placement table 5, the through groove 6 can be provided as a plurality, thereby the distance between the two clamping plates 45 on the second sliding rod 43 can be changed multiple times, and molds of different lengths can be clamped, the two second sliding rods 43 are arranged below the bottom end of the placement table 5, so that the second sliding rod 43 will not collide with the placement table 5 when moving, and the rack 49 is arranged below the bottom end of the second sliding rod 43, so that the rack 49 will not interfere with the second sliding rod 43 when moving.

[0034] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

[0035] When the mold needs to be clamped during work, first place the mold on the placing table 5, then start the motor 34 according to the length of the mold, the motor 34 drives the bidirectional screw rod 31 to rotate, when the bidirectional screw rod 31 rotates, it drives the two first sliding blocks 32 to move relatively or in opposite directions, the first sliding blocks 32 in turn drive the shell 33 to move, the shell 33 drives the clamping assembly 4 connected thereto to move synchronously, the clamping plates 45 are moved to the positions corresponding to the through grooves 6, so that the clamping plates 45 can adapt to clamping molds of different lengths, improving the versatility of the clamp, when the mold needs to be clamped, start the hydraulic rod 42, the hydraulic rod 42 drives the second sliding rod 43 fixedly connected thereto to move, since the racks 49 at the bottom ends of the two second sliding rods 43 are engaged with the gears 48, when the second sliding rod 43 moves, the rack 49 drives the gear 48 to rotate, in turn causing the other rack 49 engaged therewith to drive the corresponding second sliding rod 43 to move in the opposite direction, realizing linkage opening and closing of the four clamping plates 45, so as to complete the fixed clamping of the mold, by adjusting the distribution distance between the clamping plates 45, the clamping assembly 4 is subjected to multi-point synchronous clamping from both sides of the mold, ensuring that the mold is uniformly stressed during machining, stable and immobile, accurately positioned, effectively avoiding displacement, deformation and other problems of the mold due to unstable clamping or uneven stress, ensuring the machining precision of the mold, improving the product quality, and improving the clamping effect of the mold.

[0036] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying that there is any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus that includes a list of elements does not only include those elements, but also includes other elements not explicitly listed, or inherent to such a process, method, article, or apparatus.

[0037] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A special fixture for mold production in a CNC vertical machining center, comprising a base plate (1), wherein a groove (2) is provided at the top of the base plate (1), and a placement platform (5) is fixedly installed at the top of the base plate (1), characterized in that: The inner wall of the chute (2) is provided with an adjusting assembly (3), and the top end of the bottom plate (1) is provided with a clamping assembly (4); The adjusting assembly (3) comprises a bidirectional screw (31), the bidirectional screw (31) is rotatably installed on the inner wall of the chute (2), and the top end of the bidirectional screw (31) is provided with two machine housings (33); The clamping assembly (4) comprises two second sliding rods (43), the outer walls of the two second sliding rods (43) are slidably connected with two moving blocks (46), the outer walls of the four moving blocks (46) are fixedly installed with second sliding blocks (44), the top ends of the four second sliding blocks (44) are fixedly installed with clamping plates (45), the bottom ends of the two second sliding rods (43) are fixedly installed with two racks (49), and the gears (48) are arranged between the opposite sides of the two racks (49).

2. The fixture for mold production of a CNC vertical machining center according to claim 1, characterized in that: The inner walls of the two machine housings (33) are fixedly installed with first sliding rods (35), the two first sliding rods (35) are slidably connected with the four second sliding blocks (44), and the four second sliding blocks (44) are movably inserted into the inner walls of the two machine housings (33).

3. The fixture for mold production of a CNC vertical machining center according to claim 1, characterized in that: The outer wall of the bidirectional screw (31) is threadedly connected with two first sliding blocks (32), the two first sliding blocks (32) are movably inserted into the inner wall of the chute (2), the two first sliding blocks (32) are fixedly connected with the two machine housings (33), one side of the outer wall of the bottom plate (1) is fixedly installed with a motor (34), the output shaft of the motor (34) penetrates the inner wall of the chute (2) and is fixedly connected with one end of the outer wall of the bidirectional screw (31).

4. The fixture for mold production of a CNC vertical machining center according to claim 1, characterized in that: The bottom end of the placement table (5) is rotatably installed with a rotating shaft (47), the bottom end of the rotating shaft (47) is fixedly connected with the gear (48), and the gear (48) is meshingly arranged with the two racks (49).

5. The fixture for mold production of a CNC vertical machining center according to claim 1, characterized in that: The top end of the bottom plate (1) is fixedly installed with a mounting plate (41), the outer wall of the mounting plate (41) is fixedly installed with a hydraulic rod (42), and the output end of the hydraulic rod (42) is fixedly connected with one second sliding rod (43).

6. The fixture for mold production of a CNC vertical machining center according to claim 1, characterized in that: The top end of the placement table (5) is provided with two groups of through grooves (6), the two groups of through grooves (6) are centrally and symmetrically distributed on the top end of the placement table (5), the two second sliding rods (43) are arranged below the bottom end of the placement table (5), and the racks (49) are arranged below the bottom end of the second sliding rods (43).

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