Hot melting drilling machine for long-strip tubular part

Abstract

The utility model discloses a hot melting drilling machine used for a long-strip tubular part, and relates to the technical field of hot melting drills, the hot melting drilling machine comprises a drilling machine frame and a workpiece bearing machine frame, the workpiece bearing machine frame is provided with a left-right moving mechanism and a bearing table, a through hole vertically penetrates through the bearing table, and the through hole extends left and right to form a sliding hole; a plurality of clamp bases are arranged on the left side and the right side of the bearing table, clamps are correspondingly arranged on the clamp bases, connecting holes vertically penetrate through the left side edge and the right side edge of each clamp base, connecting bolts, connecting nuts and sliding holes are arranged on the connecting holes, and the clamp bases are detachably connected to the bearing table through cooperation of the connecting bolts and the sliding holes. The mounting position of each clamp base on the bearing table can be adjusted left and right, so that the multiple clamps can specifically clamp the portion, in the length direction, of the long-strip-shaped tubular workpiece, the positions clamped by the clamps are the positions where hot melting drilling is needed or the positions close to the hot melting drilling, and when hot melting drilling is carried out, the long-strip-shaped tubular workpiece can be subjected to hot melting drilling. And the workpiece can be well kept stable.

Description

Technical Field

[0001] The utility model relates to the technical field of hot melt drilling, in particular to a hot melt drilling machine used for long tubular pieces. Background Art

[0002] The melt drilling process is a chipless processing technology that can process holes and bushings on metal sheets or pipes at one time. It perfectly replaces the process of welding (riveting) nuts on thin-walled workpieces. The melt drill bit is made of wear-resistant and high-temperature resistant carbide material. When the tool and the workpiece come into contact, the high speed (1000~3500) and appropriate axial thrust (feed force) cause intense friction between the drill bit and the metal, and the temperature reaches 650℃~750℃ in an instant. The metal in the area near the drill bit softens rapidly, and the axial pressure is continued to be applied to quickly extrude a boss and bushing about 3 times the thickness of the initial plate on the upper and lower surfaces of the workpiece. The whole process only takes 2-6 seconds. For processing that requires smooth connection surfaces or chamfered holes, the corresponding type of drill bit can be used to cut off the boss formed on the workpiece surface. The bushing can be tapped for threaded connection, and the processed thread can withstand higher tension and torque.

[0003] The structure of the machine tool using the hot melt drilling process is proposed in the Chinese utility model with the announcement number CN203956503U as "a hot melt drilling and tapping integrated machine", which includes a frame, a horizontal workbench on the frame, a clamp capable of fixing the workpiece on the workbench, a box body slidably connected to the workbench in the horizontal direction, a lateral driving mechanism capable of driving the box body to move is provided on the frame, at least one connecting seat 1 and at least one connecting seat 2 are slidably connected to the box body in the vertical direction, and a clamp capable of fixing the workpiece on the workbench is provided in the box body. There is a vertical driving mechanism that can drive the connecting seat 1 and the connecting seat 2 to move up and down respectively. The connecting seat 1 and the connecting seat 2 are both rotatably connected with connecting shafts, and the connecting shafts are vertically arranged. The lower end of the connecting shaft on the connecting seat 1 is fixedly connected with a hot melt drill bit, and the lower end of the connecting shaft on the connecting seat 2 is fixedly connected with a tapping drill bit. The upper ends of the connecting shafts are connected to a power mechanism that can drive the connecting shafts to rotate. The box body is also provided with a coating mechanism that can apply hot melt paste to the outer wall of the hot melt drill bit and apply lubricating oil to the outer wall of the tapping drill bit.

[0004] In order to cope with the hot melt drilling of long tubular workpieces, four clamps are fixedly arranged on the workbench. This clamping method can provide a relatively stable clamping and holding when hot melt drilling certain designated positions of the workpiece (positions close to the clamps); but when it is used for hot melt drilling in other positions, especially when the required drilling position is far away from the adjacent clamps, the holding effect provided by the clamps is weak, and the jitter generated during hot melt drilling (caused by the rotation and top pressure of the drill bit) is large, which will correspondingly lead to a larger precision error of the hole. When hot melt drilling long tubular workpieces, it is not possible to clamp and hold them in a targeted manner according to the position of the drilling hole. Utility Model Content

[0005] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hot melt drilling machine for long tubular parts, comprising a drilling frame and a workpiece supporting frame, the drilling frame is provided with a hot melt drill bit, a spindle for clamping the hot melt drill bit, and a gearbox for driving the spindle to rotate, and a vertical lifting mechanism is also provided on the drilling frame, the gearbox is installed on the lifting end of the vertical lifting mechanism, a left and right moving mechanism is provided on the workpiece supporting frame, and a supporting platform is installed on the moving end of the left and right moving mechanism, the supporting platform is vertically penetrated with a through hole, and the through hole extends left and right to form a sliding hole; a plurality of clamp bases are arranged on the left and right sides of the supporting platform, and clamps for clamping the workpiece are correspondingly arranged on the clamp base, and connecting holes corresponding to the sliding holes are vertically penetrated on the left and right sides of the clamp base, and connecting bolts and connecting nuts are arranged on the connecting holes, and the lever part of the connecting bolt cooperates with the head of the connecting bolt and the connecting nut after passing through the connecting hole and the sliding hole, so that the clamp base is detachably connected to the supporting platform.

[0007] As a further solution of the utility model: the left-right moving mechanism is a first motor screw slider mechanism installed on the workpiece supporting frame, the length direction of the screw of the first motor screw slider mechanism is set to the left and right, and the supporting platform is installed on the slider of the first motor screw slider mechanism.

[0008] As a further solution of the utility model: the clamp includes a connecting seat connected to the clamp base, and a rear clamping block is formed on the top of the connecting seat; a screw slider assembly is installed on the connecting seat, the screw of the screw slider assembly is arranged front and back, and the slider of the screw slider assembly is connected to a front clamping block that cooperates with the rear clamping block.

[0009] As a further solution of the utility model: after multiple clamps are arranged on the left and right, a left positioning clamp located on the leftmost side and a right positioning clamp located on the rightmost side are formed; the left positioning block is connected to the rear clamping block of the left positioning clamp, and the right positioning block is connected to the rear clamping block of the right positioning clamp. The left positioning block and the right positioning block cooperate to perform resistance positioning on the workpiece in the left and right directions.

[0010] As a further solution of the utility model: the vertical lifting mechanism is a second motor screw slider mechanism installed on the drilling machine frame, the length direction of the screw of the second motor screw slider mechanism is vertically set, and the housing of the gearbox is installed on the slider of the second motor screw slider mechanism.

[0011] Compared with the prior art, the beneficial effects of the present technical solution are as follows: through the design of the sliding hole, the installation position of each clamp base on the support platform can be adjusted left and right, so that multiple clamps can perform targeted clamping on the length direction of the long tubular workpiece, so that the clamped position of the clamp is the required hot melt drilling position or a position close to the hot melt drilling position, so that the workpiece can be better kept stable during hot melt drilling.

[0012] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 yes Figure 1 A is an enlarged schematic diagram of the local structure at center A;

[0016] Figure 3 It is another structural schematic diagram of the utility model, which Figure 1 Compared with unsupported workpieces;

[0017] Figure 4 yes Figure 3 Enlarged schematic diagram of the local structure at point B in the middle.

[0018] The corresponding reference numerals in the accompanying drawings are described as follows:

[0019] Drilling frame-1, workpiece support frame-2, hot melt drill bit-3, spindle-4, gearbox-5, vertical lifting mechanism-6, support platform-7, slide hole-8, fixture base-9, fixture-10, left positioning fixture-10a, right positioning fixture-10b, connecting hole-11, connecting bolt-12, left and right moving mechanism-13,

[0020] Connecting seat -1001, rear clamping block -1002, screw slider assembly -1003, front clamping block -1004, left positioning block -1005, right positioning block -1006. DETAILED DESCRIPTION

[0021] 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 scope of protection of the utility model.

[0022] See also Figure 1-4 A hot melt drilling machine for long tubular parts comprises a drilling frame 1 and a workpiece supporting frame 2.

[0023] The drilling machine frame 1 is provided with a hot melt drill bit 3, a main shaft 4 for clamping the hot melt drill bit 3, and a gearbox 5 for driving the main shaft 4 to rotate. When hot melt drilling is performed, the gearbox 5 is used to change the rotation speed of the hot melt drill bit 3.

[0024] A vertical lifting mechanism 6 is also provided on the drilling machine frame 1 , and a gearbox 5 is installed on the lifting end of the vertical lifting mechanism 6 for changing the feed amount of the hot melt drill bit 3 .

[0025] In some embodiments, the vertical lifting mechanism 6 is a second motor screw slider mechanism installed on the drilling machine frame 1, the length direction of the screw of the second motor screw slider mechanism is vertically set, and the box body of the gearbox 5 is installed on the slider of the second motor screw slider mechanism. Correspondingly, the guide rail of the second motor screw slider mechanism is vertically set. It is electrically connected to the main controller of the hot melt drilling machine, which is used to electrically control the hot melt drill bit 3 to press down when drilling, and to electrically control the hot melt drill bit 3 to rise and disengage from the workpiece after the hot melt drilling is completed, without manual lifting / pressing for lifting and lowering.

[0026] In this embodiment, a supporting platform 7 is disposed on the workpiece supporting frame 2 , and a through hole is vertically penetrated through the supporting platform 7 , and the through hole extends leftward and rightward to form a sliding hole 8 .

[0027] A plurality of clamp bases 9 are arranged on the left and right sides of the support platform 7, and a clamp 10 for clamping the workpiece is connected to the clamp base 9. Connecting holes 11 corresponding to the sliding holes 8 are vertically penetrated on the left and right sides of the clamp base 9, and connecting bolts 12 and connecting nuts are arranged on the connecting holes 11. After the lever part of the connecting bolt 12 passes through the connecting hole 11 and the sliding hole 8, it cooperates with the head of the connecting bolt 12 and the connecting nut to detachably connect the clamp base 9 to the support platform 7.

[0028] The workpiece support frame 2 is provided with a left-right moving mechanism 13, and the support platform 7 is installed on the moving end of the left-right moving mechanism 13. After the fixture 10 clamps the workpiece, the left-right moving mechanism 13 can drive the workpiece to move left-right, so that different parts of the long tubular workpiece in the length direction can be moved to the bottom of the hot melt drill bit 3, so as to perform hot melt drilling processing on different parts.

[0029] Through the design of the sliding hole 8, the installation position of each clamp base 9 on the supporting platform 7 can be adjusted left and right, so that multiple clamps 10 can perform targeted clamping on the length direction of the long tubular workpiece, so that the clamping position of the clamp 10 is the required hot melt drilling position or a position close to the hot melt drilling position, so that the workpiece can be better maintained stable during hot melt drilling.

[0030] Figure 1 The number of the fixture bases and fixtures shown is 3, and a corresponding number of fixtures can be set according to the length of the support platform, the length of the slide hole and the required clamping position of the workpiece.

[0031] In some embodiments, the left-right moving mechanism 13 is a first motor lead screw slider mechanism installed on the workpiece support frame 2, the length direction of the lead screw of the first motor lead screw slider mechanism is set left and right, and the support platform 7 is installed on the slider of the first motor lead screw slider mechanism. Correspondingly, the guide rails of the first motor lead screw slider mechanism are set left and right. By being electrically connected to the main controller of the hot melt drilling machine, before hot melt drilling, the support platform 7 can be electrically controlled to drive so that the part of the workpiece that needs to be drilled can be electrically moved left or right to the bottom of the hot melt drill bit 3 without manual manual movement.

[0032] Preferably, the clamp 10 includes a connection seat 1001 connected to the clamp base 9, and a rear clamping block 1002 is formed on the top of the connection seat 1001; a screw slider assembly 1003 is installed on the connection seat 1001, and the length direction of the screw of the screw slider assembly 1003 is arranged in the front and back direction, and the slider of the screw slider assembly 1003 is connected to the front clamping block 1004 that cooperates with the rear clamping block 1002. Correspondingly, the guide rail of the screw slider assembly 1003 is arranged in the front and back direction. By rotating the screw of the screw slider assembly 1003, the slider of the screw slider assembly 1003 is driven to move forward and backward on the guide rail of the screw slider assembly 1003, thereby clamping and loosening the workpiece. The driving method for rotating the screw of the screw slider assembly 1003 can be to install a hand crank (not shown) on the front end of the screw and drive it by hand.

[0033] like Figure 1 As shown, in some embodiments, after a plurality of fixtures are arranged on the left and right sides, a left positioning fixture 10a located on the leftmost side and a right positioning fixture 10b located on the rightmost side are formed.

[0034] The left positioning block 1005 is connected to the rear clamping block of the left positioning fixture 10a, and the right positioning block 1006 is connected to the rear clamping block of the right positioning fixture 10b. The left positioning block 1005 and the right positioning block 1006 cooperate to position the workpiece in the left and right directions so that it can be stably held on the support platform.

[0035] like Figure 1 As shown, there is at least one fixture 10 between the left positioning fixture 10a and the right positioning fixture 10b.

[0036] The long tubular workpiece is positioned in the left and right directions by the left positioning block 1005 and the right positioning block 1006. That is, in addition to being able to be used for targeted clamping of the long tubular workpiece in the length direction, the clamp, combined with the position adjustment capabilities of the left positioning block 1005, the right positioning block 1006 and the slide hole 8, can also be used for the left and right positioning of long tubular workpieces within a certain length range, and has better applicability.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A hot melt drilling machine for long tubular parts, comprising a drilling frame and a workpiece supporting frame, the drilling frame is provided with a hot melt drill bit, a spindle for clamping the hot melt drill bit, and a gearbox for driving the spindle to rotate, and the drilling frame is also provided with a vertical lifting mechanism, the gearbox is installed on the lifting end of the vertical lifting mechanism, and is characterized in that: A left-right moving mechanism is arranged on the workpiece supporting frame, and a supporting platform is installed on the moving end of the left-right moving mechanism, and a through hole is vertically penetrated on the supporting platform, and the through hole extends left and right to form a sliding hole; A plurality of clamp bases are arranged on the left and right sides of the support platform, and clamps for clamping the workpiece are arranged on the clamp bases accordingly. Connecting holes corresponding to the sliding holes are vertically penetrated on the left and right sides of the clamp bases, and connecting bolts and connecting nuts are arranged on the connecting holes. After the lever part of the connecting bolt passes through the connecting hole and the sliding hole, it cooperates with the head of the connecting bolt and the connecting nut to detachably connect the clamp base to the support platform.

2. The hot melt drilling machine according to claim 1, characterized in that: The left-right moving mechanism is a first motor lead screw slider mechanism installed on a workpiece supporting frame, the length direction of the lead screw of the first motor lead screw slider mechanism is arranged left-right, and the supporting platform is installed on the slider of the first motor lead screw slider mechanism.

3. The hot melt drilling machine according to any one of claims 1 to 2, characterized in that: The clamp comprises a connecting seat connected to the clamp base, and a rear clamping block is formed on the top of the connecting seat; A screw slider assembly is installed on the connecting seat, the screws of the screw slider assembly are arranged front and back, and a front clamping block matched with a rear clamping block is connected to the slider of the screw slider assembly.

4. The hot melt drilling machine according to claim 3, characterized in that: After the plurality of fixtures are arranged on the left and right sides, a left positioning fixture located on the leftmost side and a right positioning fixture located on the rightmost side are formed; The rear clamping block of the left positioning fixture is connected with a left positioning block, and the rear clamping block of the right positioning fixture is connected with a right positioning block. The left positioning block cooperates with the right positioning block to carry out blocking positioning of the workpiece in the left and right directions.

5. The hot melt drilling machine according to claim 1, 2 or 4, characterized in that: The vertical lifting mechanism is a second motor lead screw slider mechanism installed on the drilling machine frame, the length direction of the lead screw of the second motor lead screw slider mechanism is vertically arranged, and the housing of the gearbox is installed on the slider of the second motor lead screw slider mechanism.

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