Lathe extension plate

Abstract

The utility model discloses a lathe extension plate which comprises a rotary workbench, an extension workbench is installed on the top of the rotary workbench, first installation grooves perpendicular to each other are formed in the surface of the rotary workbench, and a second installation groove is formed between every two adjacent first installation grooves. A first sawtooth clamping groove formed in the radial direction of the rotary workbench is formed in the top of the extending workbench, T-shaped grooves parallel to each other are formed in the two sides of the first sawtooth clamping groove, and a clamping jaw used for fixing a workpiece and an equal-height block used for supporting the workpiece are installed on the first sawtooth clamping groove. The first sawtooth clamping grooves assembled with the clamping jaws are designed in the lengthened workbench, the clamping jaws are prevented from shifting due to mutual stress when the clamping jaws clamp a workpiece, the T-shaped grooves are formed in the two sides of each first sawtooth clamping groove, the positions of the clamping jaws can be freely moved according to the diameter of the workpiece, and after the T-shaped blocks are additionally arranged, an outer hexagon can be locked on each T-shaped block to be used for supporting the workpiece. The whole structure facilitates feeding, discharging and clamping, correction time and time cost are saved, and safety, convenience and rapidness are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool equipment, in particular to an extension plate of a lathe. Background Art

[0002] Lathe is one of the most commonly used machine tools for machining. However, due to the limitation of workbench width or length, when it is necessary to process workpieces beyond the processing range, it is impossible to process, or outsource the processing, or add new equipment. However, outsourcing processing is expensive and will affect the production schedule; and adding new equipment will result in high investment costs and excess capacity due to low equipment utilization or insufficient workload.

[0003] The company's current maximum rotary table diameter is 5000mm, and can only process ring shaft products within φ5000. The purpose of this utility model is to be able to process more ring shaft products of different diameters, save fixture costs, process qualified products, and improve output and production efficiency. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, a lathe extension plate is provided.

[0005] To achieve the above-mentioned purpose, the utility model discloses a lathe extension plate, including a rotating worktable, an extended worktable is installed on the top of the rotating worktable, the surface of the rotating worktable is provided with first mounting grooves which are perpendicular to each other, a second mounting groove is arranged between two adjacent groups of first mounting grooves, a first serrated groove is arranged on the top of the extended worktable along the radial direction of the rotating worktable, T-slots which are parallel to each other are arranged on both sides of the first serrated groove, and claws for fixing a workpiece and equal-height blocks for supporting the workpiece are installed on the first serrated groove.

[0006] Furthermore, the extended workbench includes a first extension plate installed on the first mounting groove and a second extension plate installed on the second mounting groove. The first extension plate and the second extension plate have the same length and are arranged at intervals along the circumferential direction of the rotating workbench. The top of the extended workbench is provided with lifting holes located on both sides of the T-slot.

[0007] Furthermore, the first extension plate is a straight plate structure, and the side surfaces of the first extension plate are provided with inwardly recessed rectangular grooves, and the bottoms of the rectangular grooves on both sides are provided with through holes connected to the first mounting grooves.

[0008] Furthermore, the first mounting slot includes a second serrated slot and first fixing slots arranged on both sides of the second serrated slot.

[0009] Furthermore, the second extension plate is an inclined plate structure, and a wing plate connected by ribs extends outward from the side surface of the second extension plate, and a through hole connected to the second mounting groove is provided on the wing plate.

[0010] Furthermore, the second mounting groove includes a second fixing groove arranged at a 45° angle to the first mounting groove, and third fixing grooves with a length smaller than that of the second fixing groove are arranged on both sides of the second fixing groove, and the cross-sectional shapes of the first fixing groove, the second fixing groove and the third fixing groove are all inverted T-shaped grooves, and T-shaped blocks are arranged in the inverted T-shaped grooves.

[0011] Furthermore, the claw includes a fixed block arranged on the first serrated slot and an extrusion block installed on the top of the fixed block. The extrusion block is L-shaped and is slidably installed in the slide groove on the top of the fixed block. A key installed vertically with the first installation groove is provided at the bottom of the fixed block, and a protrusion structure engaged with the first serrated slot is provided at the bottom of the key.

[0012] Furthermore, a T-block with a thread is arranged in the T-slot, and the T-block cooperates with a bolt to fix the equal height block on the top of the extended workbench.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the utility model discloses a lathe extension plate, and a first serrated groove assembled with a clamping claw is designed on the surface of the extended workbench to prevent the clamping claw from shifting due to mutual force when the clamping claw clamps the workpiece. T-slots are arranged on both sides of the first serrated groove, and the position of the clamping claw can be moved arbitrarily according to the diameter of the workpiece. After adding a T-block, an external hexagon can be locked on it to support the workpiece. The overall structure is convenient for loading and unloading and clamping, saves correction time and time cost, and is safe, convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a top view of the utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the first extension plate of the utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the second extension plate of the utility model.

[0019] Figure 5 It is a schematic diagram of the installation position of the clamping claw and the equal height block of the utility model.

[0020] Figure 6 This is a schematic diagram of the T-block structure of the utility model.

[0021] Figure 7 It is a schematic diagram of the key structure of the utility model.

[0022] In the figure: 1 is a rotary workbench; 2 is a first mounting slot; 21 is a second serrated slot; 22 is a first fixed slot; 3 is a second mounting slot; 31 is a second fixed slot; 32 is a third fixed slot; 4 is an extended workbench; 41 is a first extended plate; 411 is a rectangular slot; 42 is a second extended plate; 421 is a wing plate; 43 is a first serrated slot; 44 is a T-slot; 45 is a lifting hole; 46 is a through hole; 5 is a workpiece; 6 is a claw; 61 is a fixed block; 62 is an extrusion block; 7 is an equal height block; 8 is a T-block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0024] An embodiment of the utility model, as Figure 1 and Figure 2 As shown, an extended workbench 4 is installed on the top of the rotary workbench 1. The workbench is made of gray cast iron of model HT300, which has a low melting point (1145-1250°C), small shrinkage during solidification, compressive strength and hardness close to carbon steel, and good shock absorption. It is used to manufacture machine tool beds, cylinders, boxes and other structural parts. The surface of the rotary workbench 1 is provided with mutually perpendicular first mounting grooves 2, and a second mounting groove 3 is provided between two adjacent groups of first mounting grooves 2. The top of the extended workbench 4 is provided with a first serrated groove 43 arranged along the radial direction of the rotary workbench 1, and T-shaped grooves 44 parallel to each other are provided on both sides of the first serrated groove 43. A fixing groove 5 for fixing the workpiece is installed on the first serrated groove 43. The clamping claw 6 and the equal height block 7 for supporting the workpiece 5 are, as a preferred embodiment of the present application, the diameter of the rotary table is 5000mm, and the ring shaft workpiece with a diameter of 6500mm can be processed by extending the structure of the worktable 4. The surface of the extended worktable 4 is designed with a first serrated groove 43 assembled with the clamping claw 6 to prevent the clamping claw 6 from being displaced by mutual force when the clamping claw 6 clamps the workpiece 5. T-slots 44 are provided on both sides of the first serrated groove 43, and the position of the clamping claw 6 can be arbitrarily moved according to the diameter of the workpiece 5. After adding the T-block 8, the external hexagon can be locked on it to support the workpiece 5. The overall structure is convenient for loading and unloading and clamping, saving correction time and time cost, and is safe, convenient and fast.

[0025] The extended workbench 4 includes a first extension plate 41 installed on the first mounting groove 2 and a second extension plate 42 installed on the second mounting groove 3. The first extension plate 41 and the second extension plate 42 have the same length and are spaced apart along the circumferential direction of the rotating workbench 1. The top of the extended workbench 4 is provided with lifting holes 45 located on both sides of the T-slot 44. As a preferred embodiment of the present application, a total of 8 first extension plates 41 and second extension plates 42 are installed on the top of the rotating workbench 1 as the extended workbench 4, and the 8 extension plates are milled at the same time to ensure that they are coplanar when clamping the workpiece 5.

[0026] The first extension plate 41 is a straight plate structure, and the side surfaces of the first extension plate 41 are provided with inwardly recessed rectangular grooves 411, and the bottoms of the rectangular grooves 411 on both sides are provided with through holes 46 connected to the first mounting groove 2. The first mounting groove 2 includes a second serrated groove 21 and first fixing grooves 22 arranged on both sides of the second serrated groove 21. The first extension plate 41 is fixedly installed with a T-block 8 arranged in the first mounting groove 2 by multiple sets of bolts to improve the installation strength.

[0027] The second extension plate 42 is an inclined plate structure, and a wing plate 421 connected by ribs extends outward from the side of the second extension plate 42, and a through hole 46 connected to the second mounting groove 3 is arranged on the wing plate 421. The second mounting groove 3 includes a second fixing groove 31 arranged at a 45° angle with the first mounting groove 2, and third fixing grooves 32 with a length less than the second fixing groove 31 are arranged on both sides of the second fixing groove 31. The cross-sectional shapes of the first fixing groove 22, the second fixing groove 31 and the third fixing groove 32 are all inverted T-shaped grooves, and T-shaped blocks 8 are arranged in the inverted T-shaped grooves. The second extension plate 42 is fixedly installed with the T-shaped block 8 arranged in the second mounting groove 3 by multiple sets of bolts, and the angle between the third fixing groove 33 and the second fixing groove 32 is determined according to the angle of the wing plate 421 of the second extension plate 42 to meet the fixed installation of the second extension plate and improve the installation strength.

[0028] The clamping jaw 6 includes a fixed block 61 arranged on the first serrated groove 43 and an extrusion block 62 installed on the top of the fixed block 61. The extrusion block 62 is L-shaped and is slidably installed in the slide groove on the top of the fixed block 61. A key 63 vertically installed with the first installation groove 2 is arranged at the bottom of the fixed block 61. A protrusion structure mutually engaged with the first serrated groove 43 is arranged at the bottom of the key 63. The position of the protrusion structure corresponds to the serrated structure of the first serrated groove 43. The extrusion block 62 of the clamping jaw 6 acts on the surface of the workpiece 5 to clamp and position the workpiece 5. According to different types of ring shaft workpieces, the positions of the clamping jaw 6 and the contour block 7 can be adjusted according to different ring shaft workpieces, so that more ring shaft products with different diameters can be processed, saving fixture costs, processing qualified products, and improving output and production efficiency.

[0029] A threaded T-block 8 is provided in the T-slot 44. The T-block 8 cooperates with bolts to fix the equal height block 7 on the top of the extended workbench 4. The equal height block 7 assists in supporting the workpiece 5 to ensure the coplanarity. The T-block 8 is slidably set in the T-slot 44, and the appropriate position is adjusted according to the diameter of the workpiece of different specifications to complete the fixation of the clamping claw 6 and the equal height block 7.

[0030] Several points that need to be explained are: First, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, and can be mechanical or electrical connections, or internal connectivity between two elements, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change; secondly, in this article, relational terms such as first and second, etc. are only used to distinguish one entity from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities.

[0031] The above examples are merely illustrative of the present utility model and do not constitute a limitation on the protection scope of the present utility model. All designs that are identical or similar to the present utility model fall within the protection scope of the present utility model.

Claims

1. A lathe extension plate, comprising a rotary table (1), characterized in that: An extended workbench (4) is installed on the top of the rotary workbench (1); mutually perpendicular first mounting grooves (2) are provided on the surface of the rotary workbench (1); a second mounting groove (3) is provided between two adjacent groups of first mounting grooves (2); a first sawtooth clamping groove (43) is provided on the top of the extended workbench (4) and is arranged radially along the rotary workbench (1); mutually parallel T-shaped grooves (44) are provided on both sides of the first sawtooth clamping groove (43); a clamping claw (6) for fixing a workpiece (5) and an equal height block (7) for supporting the workpiece (5) are installed on the first sawtooth clamping groove (43).

2. The lathe extension plate according to claim 1, characterized in that: The extended workbench (4) comprises a first extended plate (41) mounted on the first mounting groove (2) and a second extended plate (42) mounted on the second mounting groove (3); the first extended plate (41) and the second extended plate (42) are of the same length and are arranged at intervals along the circumferential direction of the rotating workbench (1); and the top of the extended workbench (4) is provided with hanging holes (45) located on both sides of the T-shaped groove (44).

3. The lathe extension plate according to claim 2, characterized in that: The first extension plate (41) is a straight plate structure, and the side surfaces of the first extension plate (41) are provided with inwardly recessed rectangular grooves (411), and the bottoms of the rectangular grooves (411) on both sides are provided with through holes (46) connected to the first mounting grooves (2).

4. The lathe extension plate according to claim 3, characterized in that: The first mounting slot (2) comprises a second sawtooth slot (21) and first fixing slots (22) arranged on both sides of the second sawtooth slot (21).

5. The lathe extension plate according to claim 2, characterized in that: The second extension plate (42) is an inclined plate structure, and a wing plate (421) connected via ribs extends outward from the side of the second extension plate (42), and a through hole (46) connected to the second mounting groove (3) is provided on the wing plate (421).

6. The lathe extension plate according to claim 5, characterized in that: The second mounting groove (3) comprises a second fixing groove (31) arranged at an angle of 45° to the first mounting groove (2); third fixing grooves (32) having a length less than that of the second fixing groove (31) are respectively arranged on both sides of the second fixing groove (31); the cross-sectional shapes of the first fixing groove (22), the second fixing groove (31) and the third fixing groove (32) are all inverted T-shaped grooves, and T-shaped blocks (8) are arranged in the inverted T-shaped grooves.

7. The lathe extension plate according to claim 1, characterized in that: The claw (6) comprises a fixed block (61) arranged on the first sawtooth slot (43) and an extrusion block (62) mounted on the top of the fixed block (61); the extrusion block (62) is L-shaped and slidably mounted in the slide slot on the top of the fixed block (61); a key (63) vertically mounted to the first mounting slot (2) is arranged at the bottom of the fixed block (61); and a convex block structure mutually engaged with the first sawtooth slot (43) is arranged at the bottom of the key (63).

8. The lathe extension plate according to claim 1, characterized in that: A T-shaped block (8) with a thread is arranged in the T-shaped slot (44), and the T-shaped block (8) cooperates with a bolt to fix the equal height block (7) on the top of the extended workbench (4).

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