CN208132456U - A tap fixing device - Google Patents

Abstract

The utility model provides a screw tap fixing device, relates to a chasing bar, which comprises an outer shell, the inside front and back symmetry of shell is equipped with the baffle, and the symmetry is equipped with clamping device in the shell, clamping device locates between baffle and the shell inner wall, be equipped with drive assembly between the baffle, the shell top is equipped with the apron, the symmetry is equipped with before the apron upper surface and places the platform, clamping device includes the axis of rotation, both ends symmetric connection has the lead screw about the axis of rotation, the outer end and the shell inner wall of lead screw rotate to be connected, be equipped with T type slider on the lead screw, T type slider and lead screw thread fit are connected, T type slider bottom surface and shell inner wall bottom sliding connection, axis of rotation middle part rigid coupling has bevel gear. The device comprises two clamping devices, and can be used for fixing two processing workpieces at the same time, so that the processing time can be saved.

Description

A tap fixing device

technical field

The utility model relates to a tapping device, in particular to a tap fixing device.

Background technique

In the production workshop, the tapping device is indispensable. The usual tapping equipment is to fix the workpiece to be processed on the workbench, and then perform tapping. After the workpiece is fixed, manual adjustment is required to ensure that the workpiece and the tap are in the same position On the same straight line, otherwise it may cause the tap to deviate during the tapping process, causing the workpiece to be scrapped, or the tap to break and cause injury to the operator. The ordinary workpiece fixing device can only fix both sides of the workpiece, and it can be fixed by clamping. Fixed, if the clamp is too tight, it may be damaged on the surface of the workpiece, if it is too loose, it may cause rotation during tapping.

Contents of the invention

The purpose of the utility model is to provide a tap fixing device to solve the problems raised in the above-mentioned background technology.

A screw tap fixing device, comprising a casing, the inside of the casing is symmetrically provided with partitions front and rear, and a clamping device is symmetrically provided in the casing, and the clamping device is arranged between the partition and the inner wall of the casing, and between the partitions A transmission assembly is provided, a cover plate is provided on the top of the housing, and a placing platform is symmetrically arranged on the upper surface of the cover plate, and the clamping device includes a rotating shaft, and the left and right ends of the rotating shaft are symmetrically connected with screw rods, so that The outer end of the screw rod is rotatably connected with the inner wall of the housing, and the screw rod is provided with a T-shaped slider, and the T-shaped slider is threadedly connected with the screw rod, and the bottom surface of the T-shaped slider is slidingly connected with the bottom of the inner wall of the housing , the middle part of the rotating shaft is fixedly connected with a bevel gear one.

Preferably, the transmission assembly includes a worm gear shaft, a worm gear is provided in the middle of the worm gear shaft, the two ends of the worm gear shaft respectively pass through the corresponding partitions, and are rotatably connected with the partitions, and both ends of the worm gear shaft are provided with bevel gears 2. The bevel gear 2 is connected with the bevel gear 1. A support plate is symmetrically arranged between the partitions. A worm is connected to the support plate in rotation. The worm is connected with the worm gear, and one end of the worm is connected to a motor. .

Preferably, a clamping plate is provided on the top of the T-shaped slider, and the clamping plate is slidably connected with the lower surface of the cover plate, and a chute is symmetrically provided on the cover plate, and the upper part of the T-shaped slider is slidably connected with the chute .

Preferably, a limiting device is provided on the placing platform, the limiting device includes a limiting plate, a rectangular sliding bar is provided at the bottom of the limiting plate, a rectangular chute is provided inside the placing platform, and the rectangular sliding bar and Rectangular chute sliding connection.

Preferably, fastening bolts are provided on the upper surface of the rectangular chute, and the fastening bolts are mated and connected with the rectangular sliding rods.

The beneficial effects of the utility model are: the utility model is simple in structure and easy to operate. The utility model discloses a tap fixing device, which can simultaneously position two workpieces through the worm gear and worm transmission, and place the workpiece to be processed On the table, after starting the transmission assembly, control the clamping device to tighten and fix the workpiece. When the position of the workpiece is fixed, the tapping device can be used to tap the workpiece. The device includes two clamping devices, which can fix two processing workpieces at the same time, so that the processing time can be saved.

Description of drawings

Fig. 1 is a top sectional view of a tap fixing device described in the present invention.

Fig. 2 is a sectional view along A-A direction in Fig. 1 .

Fig. 3 is a top view of a tap fixing device described in the present invention.

Among them: 1. shell; 11. clapboard; 12. support plate; 13. cover plate; 14. chute; 21. worm; 22. worm wheel; 23. motor; 24. worm gear shaft; 25. bevel gear two; 31 , screw mandrel; 32, T-shaped slider; 33, rotating shaft; 34, clamping plate; 35, bevel gear one; 4, placing platform; 41, rectangular chute; 42, rectangular slide bar; 43, limit plate; 44. Tightening bolts; 5. Tapping device.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figures 1 to 3, a screw tap fixing device includes a casing 1, and partitions 11 are symmetrically arranged inside the casing 1, and a clamping device is arranged symmetrically inside the casing 1, and the clamping device is arranged on the partition Between the plate 11 and the inner wall of the casing 1, a transmission assembly is arranged between the partitions 11, and a cover plate 13 is arranged on the top of the casing 1, and the upper surface of the cover plate 13 is provided with a placing platform 4 symmetrically. Place the workpiece to be processed on the placement table 4, and after starting the transmission assembly, control the clamping device to clamp and fix the workpiece. When the position of the workpiece is fixed, the tapping device 5 can be used to tap the workpiece. The device includes two clamping devices, which can fix two processing workpieces at the same time, so that the processing time can be saved.

The clamping device includes a rotating shaft 33, and the left and right ends of the rotating shaft 33 are symmetrically connected with screw rods 31. The outer end of the screw rod 31 is connected to the inner wall of the housing 1 in rotation. Slider 32, the T-shaped slider 32 is threadedly connected with the screw rod 31, the bottom surface of the T-shaped slider 32 is slidably connected with the bottom of the inner wall of the housing 1, and a bevel gear 1 35 is fixedly connected to the rotating shaft 33. When the bevel gear-35 rotates, because the bevel gear-35 is fixedly connected with the rotating shaft 33, it will drive the rotating shaft 33 to rotate. Therefore, the screw mandrel 31 at both ends of the rotating shaft 33 rotates in the opposite direction, so when the rotating shaft 33 rotates, the screw mandrel 31 and the rotating shaft 33 rotate in the same direction, and the T-shaped slide block 32 that is connected with the screw mandrel 31 moves along with the screw mandrel 31. Because the screw mandrels 31 at the two ends of the rotating shaft 33 rotate in opposite directions, the upper T-shaped sliders 32 of the two screw mandrels 31 move in opposite directions and at the same speed. When the two T-shaped sliders 32 move toward each other, the workpiece is gradually clamped.

Described transmission assembly comprises worm gear shaft 24, and the middle part of described worm gear shaft 24 is provided with worm gear 22, and the two ends of worm gear shaft 24 respectively pass through corresponding dividing plate 11, and are rotatably connected with dividing plate 11, and the two ends of worm gear shaft 24 are Bevel gear 2 25 is provided, and described bevel gear 2 25 is connected with bevel gear 1 35. Support plates 12 are symmetrically arranged between the partitions 11, and a worm 21 is rotatably connected to the support plates 12. The worm 21 is connected with the worm wheel 22, and one end of the worm 21 is connected with a motor 23. When motor 23 starts, worm gear 22 and worm screw 21 cooperate to move, and worm gear 22 drives the bevel gear two 25 of worm gear shaft 24 two ends to rotate, because bevel gear two 25 is connected with bevel gear one 35, when bevel gear two 25 rotates, can Drive the bevel gear 135 to rotate, so when the motor 23 is started, the clamping device starts to work, and the worm gear 22 and the worm 21 are used for transmission, which has a large transmission ratio, and the meshing tooth surfaces of the two wheels are in line contact, and its carrying capacity is relatively large. High, the transmission of the worm 21 is equivalent to the screw transmission, and it is a multi-teeth meshing transmission, so the transmission is stable and the noise is small. The worm gear 22 and the worm 21 transmission have self-locking properties. At this time, the mechanism has self-locking property, which can realize reverse self-locking, that is, only the worm wheel 22 can be driven by the worm screw 21 . After the motor 23 stops rotating, because the transmission of the worm gear 22 and the worm screw 21 has self-locking properties, the bevel gear 1 35 and the bevel gear 2 25 cannot rotate freely, and the T-shaped slide block 32 cannot move freely. After that, as long as the motor 23 does not reverse, the workpiece will not loosen, and there is no need to position the T-shaped slide block 32 specially.

In order to adapt to the different sizes of workpieces to be processed, a clamping plate 34 is provided on the top of the T-shaped slider 32, and the clamping plate 34 is slidingly connected with the lower surface of the cover plate 13, and the cover plate 13 is symmetrically provided with chute 14, The upper part of the T-shaped slider 32 is slidably connected with the chute 14. When the clamping plate 34 clamps the workpiece, only when the contact area between the clamping plate 34 and the workpiece is larger, can the clamping be more tightly clamped.

When the tapping device taps the workpiece, it will generate pressure on the workpiece. This pressure may cause the workpiece to move between the clamping plates 34. In order to prevent the workpiece from moving under the influence of the pressure, a limit device is provided on the placing table 4. , the limiting device includes a limiting plate 43, the bottom of the limiting plate 43 is provided with a rectangular slide bar 42, the inside of the placing table 4 is provided with a rectangular chute 41, and the rectangular slide bar 42 is slidably connected with the rectangular chute 41 , in order to fix the position of the rectangular slide bar 42, a fastening bolt 44 is provided on the upper surface of the rectangular chute 41, and the fastening bolt 44 is connected with the rectangular slide bar 42. When the position of the rectangular slide bar 42 is determined, turn The fastening bolt 44 positions the rectangular sliding bar 42 to prevent the rectangular sliding bar 42 from moving freely.

The utility model discloses a screw tap fixing device, which can simultaneously position two workpieces through the cooperating transmission of the worm gear 22 and the worm 21, place the workpiece to be processed on the placement table, and control the clamping device to perform the work on the workpiece after starting the transmission assembly. Stepping up and fixing, when the workpiece position is fixed, the tapping device 5 can be used to tap the workpiece. The device includes two clamping devices, which can fix two processing workpieces at the same time, so that the processing time can be saved.

The utility model is not limited to the above-mentioned embodiments. On the basis of the technical solutions disclosed in the utility model, those skilled in the art can make some technical features based on the disclosed technical content without creative work. Simple modifications, equivalent changes and modifications all belong to the scope of the technical solution of the present utility model.

Claims (5)

1. a kind of fixed device of screw tap, which is characterized in that including shell (1), the internal front and back of the shell (1) is symmetrically arranged with partition (11), clamping device is symmetrically arranged in shell (1), the clamping device is set between partition (11) and shell (1) inner wall, described It is equipped with transmission component between partition (11), is equipped with cover board (13) at the top of the shell (1), it is right before and after cover board (13) upper surface Claim to be equipped with mounting table (4), the clamping device includes rotation axis (33), and rotation axis (33) left and right ends are symmetrically connected with silk Bar (31), the outer end of the screw rod (31) and shell (1) inner wall are rotatablely connected, and the screw rod (31) is equipped with T-type sliding block (32), The T-type sliding block (32) is threadedly engaged with screw rod (31) to be connect, and T-type sliding block (32) bottom surface and shell (1) inner wall bottom are sliding Dynamic connection, rotation axis (33) middle part are connected with bevel gear one (35).

2. the fixed device of a kind of screw tap according to claim 1, which is characterized in that the transmission component includes worm gear shaft (24), worm gear (22) being equipped in the middle part of the worm gear shaft (24), the both ends of worm gear shaft (24) are each passed through corresponding partition (11), and It is rotatablely connected with partition (11), the both ends of worm gear shaft (24) are equipped with bevel gear two (25), the bevel gear two (25) and cone tooth It takes turns one (35) to be cooperatively connected, is symmetrically arranged with support plate (12) between the partition (11), is rotatablely connected on the support plate (12) Have worm screw (21), the worm screw (21) and worm gear (22) are cooperatively connected, and one end of worm screw (21) is connected with motor (23).

3. the fixed device of a kind of screw tap according to claim 1, which is characterized in that be equipped at the top of the T-type sliding block (32) Snap-gauge (34), the snap-gauge (34) are slidably connected with cover board (13) lower surface, are symmetrically arranged with sliding slot (14) on the cover board (13), T-type sliding block (32) top is slidably connected with sliding slot (14).

4. the fixed device of a kind of screw tap according to claim 1, which is characterized in that the mounting table (4) is equipped with limit Device, the limiting device include limit plate (43), and limit plate (43) bottom is equipped with rectangle slide bar (42), the mounting table (4) Inside is equipped with rectangle sliding slot (41), and the rectangle slide bar (42) is slidably connected with rectangle sliding slot (41).

5. the fixed device of a kind of screw tap according to claim 4, which is characterized in that rectangle sliding slot (41) upper surface is equipped with tight Fixing bolt (44), the fastening bolt (44) and rectangle slide bar (42) are cooperatively connected.