Positioning structure for tapping machine

Abstract

The utility model discloses a positioning structure for a tapping machine, which comprises a machine frame, an operation table is fixedly arranged on the machine frame, receding holes are arranged on the operation table, the receding holes are arranged in a rectangular shape, and a positioning assembly is arranged at the lower end of the operation table right opposite to the receding holes. The positioning assembly comprises a rotating shaft rotationally connected with the control board, a cylinder base is fixedly installed at the lower end of the rotating shaft, a lifting air cylinder is fixedly installed at the lower end of the cylinder base, a cylinder rod of the lifting air cylinder penetrates through the cylinder base and is fixedly provided with a sliding base, and a positioning pin capable of penetrating through the receding hole is fixedly installed on the sliding base. A sliding hole in sliding fit with the rotating shaft is formed in the sliding base, and a rotating structure used for driving the rotating shaft to rotate is further installed at the lower end of the operation table. The positioning structure for the tapping machine has the advantages that positioning can be carried out from the bottom to the top, the tapping operation cannot be interfered, and positioning is accurate.

Description

TECHNICAL FIELD

[0001] The utility model relates to tapping machine technical field, in particular to a kind of positioning structure for tapping machine. BACKGROUND

[0002] Tapping machine is a kind of in machine shell, equipment end face, part, flange plate and so on various have different specifications through hole or blind hole The inner side of the hole of the part is machined to internal thread, screw or called mechanical processing equipment of tooth buckle, the appearance of tapping machine makes the efficiency of part processing has been greatly improved.

[0003] For shell or plate type parts to be processed, rectangularly arranged through holes are processed in the circumferential direction of the parts, and then tapping operation is performed on the through holes using a tapping machine. During the tapping operation, the part to be processed needs to be positioned and fixed so that the tapping cutter can perform tapping operation on the through hole. However, the current positioning of the part to be processed is from the top, which has poor positioning accuracy, resulting in the tapping cutter being unable to be coaxial with the through hole, affecting the accuracy of the tapping operation. SUMMARY

[0004] In view of the above shortcomings of the prior art, the technical problem to be solved by the present application is to provide a tapping machine positioning structure that can be positioned from the bottom, does not interfere with the tapping operation, and is accurate.

[0005] To solve the above technical problems, the utility model has adopted the following technical scheme:

[0006] A tapping machine positioning structure, comprising a rack, the rack is fixedly installed with an operating table, the operating table is provided with a clearance hole, the clearance hole is arranged in a rectangular array, and a positioning assembly is installed at the lower end of the operating table opposite the clearance hole;

[0007] The positioning assembly comprises a rotating shaft rotatably connected to the operating table, a cylinder seat is fixedly installed at the lower end of the rotating shaft, a lifting cylinder is fixedly installed at the lower end of the cylinder seat, the cylinder rod of the lifting cylinder passes through the cylinder seat and is fixedly installed with a sliding seat, the sliding seat is fixedly installed with a positioning pin capable of passing through the clearance hole, the sliding seat is provided with a sliding hole in sliding cooperation with the rotating shaft, and the lower end of the operating table is further provided with a rotating structure for driving the rotating shaft to rotate.

[0008] Thus, when the positioning of the part to be processed is required, the rotating structure drives the positioning pin to rotate below the accommodation hole, the lifting cylinder drives the sliding seat to move upwards, and then drives the positioning pin to move upwards through the accommodation hole to the upper side of the operation table. The positioning pin is used to pass through the through hole of the part to be processed to position the part to be processed. Then, the pressing structure is installed on the operation table to press the part to be processed. When tapping, the lifting cylinder drives the sliding seat to move downwards, so that the positioning pin moves downwards. The tapping tool is arranged in a spaced manner with the positioning pin. When the tapping tool enters the through hole of the part to be processed, the positioning pin exits the accommodation hole. The rotating structure drives the positioning pin to rotate to be arranged in a misaligned manner with the accommodation hole, so as to avoid interference with the tapping operation. Meanwhile, the arrangement of the accommodation hole can also accommodate the tapping tool, so that the waste generated in the tapping process of the part to be processed falls down.

[0009] The rotating structure comprises a gear fixedly installed on the upper end of the rotating shaft and a sliding rail fixedly installed on the lower end of the operation table. A rack is slidingly matched with the sliding rail. The rack is engaged with the gear. A key block is fixedly installed on the rotating shaft. The sliding seat is provided with a key groove slidingly matched with the key block. The key groove is communicated with the sliding hole. The rack is fixedly provided with a transmission rod. The transmission rods on the same side are fixedly connected with transmission shafts. The lower end of the operation table is further provided with at least two groups of driving mechanisms for driving the two transmission shafts to move close to or away from each other.

[0010] The driving mechanism comprises a bidirectional screw. The screw threads on the bidirectional screw are opposite in rotation direction from the middle to the two ends. Nuts are threadedly connected to the two ends of the bidirectional screw. The nuts are fixedly installed on connecting blocks. The two connecting blocks are fixedly connected with the two transmission shafts. The screw is connected with the two supports through bearings. The supports are fixedly installed on the lower end of the operation table. One end of the screw is fixedly connected with the output shaft of a driving motor. The driving motor is fixedly installed on the support.

[0011] The sliding rail is in an inverted T shape. The rack is provided with an inverted T-shaped groove slidingly matched with the sliding rail.

[0012] The upper end of the positioning pin is provided with a circular table face.

[0013] In summary, the positioning structure for the tapping machine has the advantages that the positioning can be performed from the lower side to the upper side, the tapping operation is not interfered, and the positioning is accurate. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The utility model discloses a positioning structure for a tapping machine.

[0015] Figure 2 The positioning structure for the tapping machine has the advantages that the positioning can be performed from the lower side to the upper side, the tapping operation is not interfered, and the positioning is accurate. Figure 1 The positioning structure for the tapping machine has the advantages that the positioning can be performed from the lower side to the upper side, the tapping operation is not interfered, and the positioning is accurate.

[0016] Figure 3 is a partial structure amplification schematic diagram in the 2.

[0017] Figure 4 is a state schematic diagram of the positioning structure of the tapping machine for positioning the parts to be processed.

[0018] Figure 5 is Figure 4 is a schematic diagram of another orientation.

[0019] Figure 6 is a partial structure amplification schematic diagram in the 5. DETAILED DESCRIPTION

[0020] The utility model will be further described in detail below in combination with the drawings. In the description of the utility model, it is understood that the orientation words such as "up, down" and "top, bottom" and the like indicated orientation or position relationship is usually based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, in the absence of the opposite statement, these orientation words do not indicate and imply the orientation or position of the indicated device or element must have a particular or in a particular orientation and operation, therefore, it can not be understood as the restriction of the protection scope of the utility model;The orientation words "inner, outer" refer to the inner and outer relative to the contour of each component.

[0021] As Figures 1-6 shown, a positioning structure of tapping machine, including frame, fixedly installed with operation table 1 on the frame, the operation table is opened with let go of hole 2, the let go of hole is arranged in rectangle, the lower end of the operation table is installed with positioning assembly opposite let go of hole;

[0022] The positioning assembly includes the rotation shaft 3 that is rotationally connected with the operating platform, the lower end of the rotation shaft is fixedly installed with the cylinder seat 4, the lower end of the cylinder seat is fixedly installed with the lifting cylinder 5, the cylinder rod of the lifting cylinder passes through the cylinder seat and is fixedly installed with the sliding seat 6, the sliding seat is fixedly installed with the positioning pin 7 that can pass through the let go of hole, the sliding seat is opened with the sliding hole that is slidably connected with the rotation shaft, the lower end of the operation table is also installed with the rotation structure for driving the rotation shaft to rotate.

[0023] In this way, when positioning the part to be processed is needed, the rotating structure drives the positioning pin to rotate below the accommodation hole, the lifting cylinder drives the sliding seat to move upward, and then drives the positioning pin to move upward through the accommodation hole to above the operation table, and the positioning pin is used to pass through the through hole of the part to be processed to position the part to be processed. Then, the pressing structure is installed on the operation table to press the part to be processed. When tapping, the lifting cylinder drives the sliding seat to move downward, so that the positioning pin moves downward, the tapping tool is arranged at intervals with the positioning pin, when the tapping tool enters the through hole of the part to be processed, the positioning pin exits the accommodation hole, the rotating structure drives the positioning pin to rotate to be arranged at intervals with the accommodation hole, so as to avoid interference with the tapping operation, and the arrangement of the accommodation hole can also accommodate the tapping tool, so as to facilitate the waste generated in the tapping process of the part to be processed to fall down.

[0024] In implementation, the rotating structure includes a gear 8 fixedly installed on the upper end of the rotating shaft and a sliding rail 9 fixedly installed on the lower end of the operation table, the sliding rail is slidably connected with a rack 10, the rack is engaged with the gear, a key block 11 is fixedly installed on the rotating shaft, the sliding seat is provided with a key groove slidably connected with the key block, and the sliding groove is communicated with the sliding hole; the rack is fixedly connected with a transmission rod 12, the transmission rods on the same side are fixedly connected with a transmission shaft 13, and the lower end of the operation table is further provided with at least two groups of driving mechanisms for driving the two transmission shafts to move close to or away from each other. The driving mechanisms drive the two transmission shafts to move synchronously, the racks on both sides of the transmission shaft are driven to move close to each other through the transmission shaft, the rack drives the gear to rotate, the rotating shaft and the sliding seat are driven to rotate through the gear, and then the positioning pin is driven to rotate to be arranged at intervals with the accommodation hole. When positioning is needed, the racks are driven to move away from each other through the two transmission shafts, so as to drive the gear to rotate, and then the positioning pin is arranged to be opposite to the accommodation hole. The arrangement of the key block facilitates the guiding of the movement of the sliding seat. The arrangement of the sliding rail facilitates the installation and movement of the rack.

[0025] In implementation, the driving mechanism includes a bidirectional screw rod 14, the threads on the bidirectional screw rod are opposite in rotation direction from the middle to both ends (the threads are not shown), both ends of the bidirectional screw rod are threadedly connected with nuts, the nuts are fixedly installed on connecting blocks 15, the two connecting blocks are fixedly connected with the two transmission shafts, the screw rod is connected with two supports 16 through bearings, the supports are fixedly installed on the lower end of the operation table, one end of the screw rod is fixedly connected with the output shaft of a driving motor 17, and the driving motor is fixedly installed on the support. The driving motor drives the screw rod to rotate, the two connecting blocks are driven to move close to or away from each other through the two nuts, so as to drive the two transmission shafts to move close to or away from each other. The transmission shafts are slidably attached to the lower surface of the operation table.

[0026] In implementation, the sliding rail is in inverted T shape, and the rack is provided with an inverted T-shaped groove slidably connected with the sliding rail. The rack is installed and moved conveniently.

[0027] In implementation, the upper end of the positioning pin is provided with a circular table. It is convenient for quick positioning, so that the positioning pin quickly enters the through hole of the part to be processed.

[0028] Finally, it should be noted that the skilled person can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and the statistical number thereof, the present application also intends to include these modifications and variations.

Claims

1. A positioning structure for a tapping machine, characterized in that, Including frame, fixedly installed with operating platform (1) on the frame, the operating platform is equipped with let hole (2), the let hole is arranged in rectangle, the lower end of operating platform is installed with positioning assembly opposite let hole; The positioning assembly includes a rotating shaft (3) rotatably connected to the operating platform, a cylinder seat (4) fixedly installed at the lower end of the rotating shaft, a lifting cylinder (5) fixedly installed at the lower end of the cylinder seat, a sliding seat (6) fixedly installed at the cylinder rod of the lifting cylinder and passing through the cylinder seat, a positioning pin (7) fixedly installed on the sliding seat and capable of passing through the let hole, a sliding hole in the sliding seat slidably fitted with the rotating shaft, and a rotating structure fixedly installed at the lower end of the operating platform for driving the rotating shaft to rotate.

2. The positioning structure for a tapping machine according to claim 1, wherein The rotating structure includes a gear (8) fixedly installed at the upper end of the rotating shaft and a sliding rail (9) fixedly installed at the lower end of the operating platform, a rack (10) slidably fitted on the sliding rail, the rack engaged with the gear, a key block (11) fixedly installed on the rotating shaft, a key groove in the sliding seat slidably fitted with the key block, and the sliding groove in communication with the sliding hole; the rack is fixedly provided with a transmission rod (12), the transmission rods on the same side are fixedly connected with a transmission shaft (13), and the lower end of the operating platform is further provided with at least two groups of driving mechanisms for driving the two transmission shafts to move close to or away from each other.

3. The positioning structure for a tapping machine according to claim 2, wherein The driving mechanism includes a bidirectional screw (14), the threads on the bidirectional screw are opposite in rotation direction from the middle to both ends, the both ends of the bidirectional screw are threadedly connected with nuts, the nuts are fixedly installed on connecting blocks (15), the two connecting blocks are fixedly connected with the two transmission shafts, the screw is connected with two supports (16) through bearings, the supports are fixedly installed at the lower end of the operating platform, one end of the screw is fixedly connected with the output shaft of a driving motor (17), and the driving motor is fixedly installed on the support.

4. The positioning structure for a tapping machine according to claim 2, wherein The sliding rail is inverted T-shaped, and the rack is provided with an inverted T-shaped groove slidably fitted with the sliding rail.

5. The positioning structure for a tapping machine according to claim 1, wherein The upper end of the positioning pin is provided with a circular table face.

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