Automatic cutter changing machine for thermal shrinkage cutter handle

Abstract

The invention relates to the related technical field of cutters, and discloses a heat shrinkage cutter handle automatic cutter changing machine which comprises a base, a supporting rod is arranged on one side of the base, a positioning conical groove with an upward opening is formed in the base, a tensioning cavity is formed in the lower side of the positioning conical groove in a communicating mode, a Latin clamping device is arranged in the tensioning cavity, and a sliding block is arranged on the supporting rod. A center hole is formed in the sliding block, the center hole of the sliding block is connected with the supporting rod in a sliding mode, the fine clamping part, the floating clamping part, the driving rod and the like are arranged, the cutter rod part and the cutter end part are clamped by the fine clamping part and the floating clamping part respectively, the fine clamping part plays a role in precise positioning, and the cutter end part is clamped by the floating clamping part. The floating clamping part plays a role in assisting the floating clamping of the end part of the cutter, so that the fine clamping part clamps the cutter bar part to be closer to the cutter handle clamping opening, and the overlap ratio between the cutter and the cutter handle clamping opening can be improved when the cutter enters the cutter handle opening.

Description

Technical Field

[0001] The invention relates to the technical field related to cutting tools, and in particular to an automatic tool changing machine for heat shrinkable tool handles. Background Art

[0002] The principle of the heat shrinkable tool handle is to use the difference in thermal expansion coefficients between the tool handle and the tool to strongly and accurately clamp the tool in the heat mounting system. The tool handle material uses special stainless steel for heat mounting with a large thermal expansion coefficient, which achieves low-temperature heat mounting at 300 degrees Celsius. Using a simple hot air heating device of an industrial hair dryer, it can correspond to all processing from high-speed finishing to heavy cutting, milling, drilling, reaming, etc. The existing heat shrink tool changing equipment is relatively simple, and the tool clamping length needs to be adjusted by hand, and the heating time needs to be manually controlled. The clamping process is inefficient and there is a risk of high temperature hurting people. The main problem solved by the present invention is how to improve the clamping efficiency of the heat shrinkable tool handle. Summary of the invention

[0003] The object of the present invention is to provide an automatic tool changing machine for heat shrinkable tool holders, so as to overcome the above-mentioned defects in the prior art.

[0004] The present invention is achieved through the following technical solutions.

[0005] The invention relates to an automatic tool changing machine for heat shrinkable tool handles, comprising a base, a support rod is provided on one side of the base, the base is provided with a positioning cone groove opening upward, a tensioning cavity is connected to the lower side of the positioning cone groove, and a Latin clamp is provided in the tensioning cavity, the support rod is provided with a sliding block, the sliding block is provided with a center hole, the center hole of the sliding block is slidably connected to the support rod, one end of the sliding block is provided with a connecting rod, a heating body is provided at the end of the connecting rod, the heating body is provided with a heating groove, a side wall of the heating groove is provided with an air blowing port, an electric heating wire is provided at the opening of the air blowing port, a telescopic rod is provided on the upper side of the heating body, a fixed body is provided at the upper end of the telescopic rod, the fixed body is provided with a slide groove, a driving rod is slidably provided in the slide groove, a precision clamping part is provided at the lower end of the driving rod, a pressure sensor and a tension sensor are provided between the driving rod and the precision clamping part, a center groove is provided in the middle of the fixed body, a floating clamping part is provided in the center groove of the fixed body, and the floating clamping part is floatingly connected to the center groove of the fixed body.

[0006] According to a further technical solution, a power cavity is connected to the wall of the slide groove, a power gear is rotatably provided on the wall of the power cavity, a rack is provided on one side of the driving rod, the rack is meshed with the power gear, and a motor is installed on the wall of the power cavity to drive the power gear to rotate.

[0007] According to a further technical solution, the precision clamping part comprises a precision clamping body, which is connected to the lower end of the driving rod, a through groove is provided at the center of the precision clamping body, a sliding groove is provided on the wall of the through groove, a supporting head is provided on the sliding groove, and the supporting head can support the side of the root of the tool.

[0008] A further technical solution is that a sliding rod is provided in the sliding groove for sliding, a guide groove is provided on one side of the sliding rod, a turntable is rotatably provided on one side wall of the sliding groove, a spiral guide bar is provided on the side of the turntable close to the guide groove of the sliding rod, the spiral guide bar cooperates with the guide groove, conical teeth are provided on one side of the turntable, active conical teeth are rotatably provided near the conical teeth of the turntable, the active conical teeth are meshed with the conical teeth of the turntable, and the precision clamping body is provided with a driving motor for driving the active conical teeth.

[0009] A further technical solution is that the precision clamping part includes a floating clamping body, a connecting spring is connected between the floating clamping body and the central groove wall body of the fixed body, a clamping groove is provided in the middle of the floating clamping body, a tool groove is provided on the upper side of the clamping groove, a sliding groove is provided on the sliding groove of the clamping groove wall body, and the abutting head is slidably provided.

[0010] According to a further technical solution, a telescopic rod is provided in the slide groove of the clamping groove wall body, and the telescopic rod of the clamping groove slide groove pushes the abutting head to telescopically clamp the end of the tool.

[0011] According to a further technical solution, a thread groove is provided on one side of the sliding block, the thread groove of the sliding block is connected to the center hole of the sliding block, the thread groove of the sliding block is threadedly connected to a locking thread rod, and the locking thread rod can resist the support rod.

[0012] According to a further technical solution, the support rod is provided with an electric guide rail, and a slider of the electric guide rail of the support rod is connected to the sliding block.

[0013] Beneficial effects of the present invention: The present invention provides an automatic tool changing machine for heat shrinkable tool handles by setting a precision clamping part, a floating clamping part, a driving rod, etc., wherein the tool rod part and the tool end are clamped by the precision clamping part and the floating clamping part respectively. The precision clamping part plays a role of precise positioning, and the floating clamping part plays a role of auxiliary floating clamping of the tool end. The advantage of such a setting is that the precision clamping part clamps the tool rod part closer to the tool handle clamping opening, which can improve the overlap between the tool and the tool handle clamping opening. When the tool enters the tool handle opening, the tool handle clamping opening is used to position the tool. The floating clamping of the floating clamping part will not seriously damage the angle of the tool, which is conducive to the smooth entry of the tool into the tool clamping opening.

[0014] The automatic tool changing machine for heat shrinkable tool handles of the present invention is equipped with a pressure sensor, a tension sensor, a telescopic rod, a driving rod, etc. The floating clamping part is relaxed first, and the driving rod drives the precision clamping part to move downward. The pressure sensor detects the pressure. When the pressure between the precision clamping part and the driving rod is very large, it means that the tool handle has not expanded enough and needs to be heated again until the pressure of the pressure sensor is reduced. The driving rod can drive the precision clamping part to insert the tool rod into the clamping hole of the tool handle, which can efficiently install the tool and avoid the situation where the heating time is too long and the installation efficiency is too low. There is no need to manually set the heating time or conduct manual experiments, and the efficiency and safety are higher.

[0015] When the tool holder needs to be cooled to clamp the tool, the precision clamping part clamps the tool rod again, and the telescopic rod drives the driving rod to move slightly upward through the floating clamping part. The tension sensor detects the tension value. When the tension value of the tension sensor exceeds the set value, we can determine that the tool holder has been cooled and the tool has been locked, completing the function of automatic fast tool clamping of the heat shrink tool holder. By setting the tension sensor, the clamping degree of the tool holder mouth on the tool can be detected at any time, which can play the role of efficient installation and disassembly of the tool, avoiding the inefficiency of manual operation and avoiding many problems of manual attempts to test the tightness of the tool, which will damage the installation length of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the invention 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 invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 yes Figure 1 A schematic diagram of the structure enlargement in the middle; Figure 3 yes Figure 2 A magnified schematic diagram of the structure at B in the middle; Figure 4 yes Figure 2 Schematic diagram of the enlarged structure at point C in the middle. DETAILED DESCRIPTION

[0019] Combine the following Figure 1-4 The present invention is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front, and back directions mentioned below are the same as Figure 1 The up-down, left-right, front-back directions of the projection relationship itself are consistent.

[0020] In combination with the attached drawings 1-4, an automatic tool changer for heat shrinkable tool handles includes a base 10, a support rod 11 is provided on one side of the base 10, the base 10 is provided with a positioning cone groove 15 opening upward, the lower side of the positioning cone groove 15 is connected with a tensioning cavity 46, the tensioning cavity 46 is provided with a Latin clamp, the support rod 11 is provided with a sliding block 12, the sliding block 12 is provided with a center hole, the center hole of the sliding block 12 is slidably connected to the support rod 11, one end of the sliding block 12 is provided with a connecting rod 13, the end of the connecting rod 13 is provided with a heating body 14, the heating body 14 is provided with a heating groove 17, and the side wall of the heating groove 17 is provided with a There is a blowing port 19, and an electric heating wire 18 is provided at the opening of the blowing port 19. A telescopic rod 20 is provided on the upper side of the heating body 14. A fixed body 31 is provided on the upper end of the telescopic rod 20. The fixed body 31 is provided with a slide groove 32. A driving rod 21 is slidably provided in the slide groove 32. A precision clamping part 41 is provided at the lower end of the driving rod 21. A pressure sensor 44 and a tension sensor 45 are provided between the driving rod 21 and the precision clamping part 41. A center groove is provided in the middle of the fixed body 31. A floating clamping part 42 is provided in the center groove of the fixed body 31. The floating clamping part 42 is floatingly connected to the center groove of the fixed body 31.

[0021] The heat shrinkable tool handle to be installed or removed is placed in the positioning cone groove 15 for positioning. The Latin clamp in the tensioning chamber 46 tightens the Latin of the tool handle to lock the tool handle. The sliding block 12 moves up and down relative to the support rod 11. The sliding block 12 drives the heating body 14 to move to the tool handle clamping position through the connecting rod 13. The tool is placed between the upper and lower floating clamping parts 42 and the fine clamping part 41. The fine clamping part 41 clamps the tool rod, and the floating clamping part 42 clamps the end of the tool. The air outlet 19 sprays gas, and the electric heating wire 18 heats the gas, thereby heating the clamping part of the tool handle. The floating clamping part 42 is relaxed first, and the driving rod 21 drives the fine clamping part 41 to move downward. The pressure sensor 44 detects the pressure. It is very large, which means that at this time, the tool handle has not expanded enough and needs to be heated again until the pressure of the pressure sensor 44 decreases. The driving rod 21 can drive the precision clamping part 41 to insert the tool handle into the clamping hole of the tool handle. The tool is positioned in the clamping hole of the tool handle. The floating clamping part 42 clamps the upper end of the tool. The telescopic rod 20 drives the tool to be inserted into the clamping hole of the tool handle through the floating clamping part 42 to complete the installation function. After a period of time, the precision clamping part 41 clamps the tool handle again, and the telescopic rod 20 drives the driving rod 21 to move slightly upward through the floating clamping part 42. The tension sensor 45 detects the tension value. When the tension value of the tension sensor 45 exceeds the set value, we can determine that the tool handle has been cooled to the right position and the tool has been locked, completing the rapid tool automatic clamping function of the heat shrinkable tool handle.

[0022] Preferably, the wall of the slide groove 32 is connected to a power chamber 38, and the wall of the power chamber 38 is rotatably provided with a power gear 33. A rack 39 is provided on one side of the driving rod 21, and the rack 39 is meshed with the power gear 33. The wall of the power chamber 38 is installed with a motor that drives the power gear 33 to rotate.

[0023] The motor in the power chamber 38 drives the power gear 33 to rotate. The rotation of the power gear 33 drives the driving rod 21 to slide up and down in the sliding groove 32 through the rack 39, thereby providing power for the movement of the driving rod 21.

[0024] Preferably, the precision clamping part 41 includes a precision clamping body 22, which is connected to the lower end of the driving rod 21, and a through groove 23 is provided at the center of the precision clamping body 22, and a sliding groove 25 is provided on the wall of the through groove 23, and a supporting head 24 is slidably provided on the sliding groove 25, and the supporting head 24 can support the side of the root of the tool.

[0025] When the sliding rod 26 slides along the sliding groove 25 toward the axis of the groove 23, the sliding rod 26 drives the abutting heads 24 to approach each other, thereby abutting against the side of the knife rod, thereby completing the function of fixing the knife rod portion.

[0026] Preferably, a sliding rod 26 is slidably provided in the slide groove 25, a guide groove is provided on one side of the sliding rod 26, a turntable 27 is rotatably provided on one side wall of the slide groove 25, a spiral guide bar is provided on the side of the turntable 27 close to the guide groove of the sliding rod 26, the spiral guide bar cooperates with the guide groove, conical teeth are provided on one side of the turntable 27, active conical teeth 29 are rotatably provided near the conical teeth of the turntable 27, the active conical teeth 29 are meshed with the conical teeth of the turntable 27, and the precision clamping body 22 is provided with a driving motor 30 for driving the active conical teeth 29.

[0027] The driving motor 30 is started, and the driving motor 30 drives the active conical teeth 29 to rotate, and the active conical teeth 29 drives the turntable 27 to rotate, and the turntable 27 drives the sliding rod 26 to slide in the slide groove 25, thereby providing power for the sliding of the sliding rod 26, ensuring that all the sliding rods 26 move synchronously, and playing a centering role.

[0028] Preferably, the precision clamping part 41 includes a floating clamping body 43, a connecting spring 37 is connected between the floating clamping body 43 and the central groove wall of the fixed body 31, a clamping groove 36 is provided in the middle of the floating clamping body 43, a tool groove 35 is provided on the upper side of the clamping groove 36, a sliding groove is provided on the wall of the clamping groove 36, and the abutting head 24 is slidably provided in the sliding groove of the wall of the clamping groove 36.

[0029] The abutting heads 24 in the clamping groove 36 slide inwardly, and all the abutting heads 24 move toward the center, and the abutting heads 24 are close to the end of the tool to be fixed.

[0030] Preferably, a telescopic rod is provided in the sliding groove of the wall of the clamping groove 36, and the telescopic rod of the sliding groove of the clamping groove 36 pushes the abutting head 24 to telescopically clamp the end of the tool.

[0031] The telescopic rod drives the abutting head 24 to move in the slide groove, and the telescopic rod provides power for the movement of the abutting head 24.

[0032] Preferably, a thread groove is provided on one side of the sliding block 12 , the thread groove of the sliding block 12 is connected to the center hole of the sliding block 12 , the thread groove of the sliding block 12 is threadedly connected with a locking threaded rod 40 , and the locking threaded rod 40 can resist the support rod 11 .

[0033] The locking threaded rod 40 rotates in the thread groove of the sliding block 12 , and the end of the locking threaded rod 40 can abut against the side wall of the support rod 11 , thereby locking the relative position of the sliding block 12 and the support rod 11 .

[0034] Preferably, the support rod 11 is provided with an electric guide rail, and a slider of the electric guide rail of the support rod 11 is connected to the sliding block 12 .

[0035] The electric guide rail on the support rod 11 can drive the sliding block 12 to slide up and down relative to the support rod 11 , and the electric guide rail provides power for the sliding of the sliding block 12 .

[0036] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology in this field to understand the content of the present invention and implement it, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic tool changer for a heat shrinkable tool holder, comprising a base, characterized in that: The cam is provided with a plurality of locking plates, the locking plates having a plurality of locking plates, the plurality of locking plates having a plurality of locking plates, the plurality of locking plates having a plurality of locking plates, the plurality of locking plates having a plurality of locking plates, and the plurality of locking plates having a plurality of locking plates.

2. The automatic tool changing machine for heat shrinkable tool holder according to claim 1, characterized in that: The slide groove wall body is connected to a power cavity, the power cavity wall body is rotatably provided with a power gear, a rack is provided on one side of the driving rod, the rack is meshed with the power gear, and the power cavity wall body is installed with a motor that drives the power gear to rotate.

3. The automatic tool changing machine for heat shrinkable tool holder according to claim 1, characterized in that: The precision clamping part includes a precision clamping body, which is connected to the lower end of the driving rod. A through groove is provided at the center of the precision clamping body, a sliding groove is provided on the wall of the through groove, and a supporting head is provided on the sliding groove for sliding, and the supporting head can support the side of the root of the tool.

4. The automatic tool changing machine for heat shrinkable tool holder according to claim 3, characterized in that: A sliding rod is slidably provided in the sliding groove, a guide groove is provided on one side of the sliding rod, a turntable is rotatably provided on one side wall of the sliding groove, a spiral guide bar is provided on the side of the turntable close to the guide groove of the sliding rod, the spiral guide bar cooperates with the guide groove, a conical tooth is provided on one side of the turntable, an active conical tooth is rotatably provided near the conical tooth of the turntable, the active conical tooth is meshed with the conical tooth of the turntable, and the precision clamping body is provided with a driving motor for driving the active conical tooth.

5. The automatic tool changing machine for heat shrinkable tool holder according to claim 1, characterized in that: The precision clamping part includes a floating clamping body, a connecting spring is connected between the floating clamping body and the central groove wall body of the fixed body, a clamping groove is provided in the middle of the floating clamping body, a tool groove is connected to the upper side of the clamping groove, a sliding groove is provided on the clamping groove wall body, and the abutting head is slidably provided in the sliding groove of the clamping groove wall body.

6. The automatic tool changing machine for heat shrinkable tool holder according to claim 5, characterized in that: A telescopic rod is arranged in the slide groove of the clamping groove wall body, and the telescopic rod of the clamping groove slide groove pushes the abutting head to telescopically clamp the end of the tool.

7. The automatic tool changing machine for heat shrinkable tool holder according to claim 1, characterized in that: A thread groove is provided on one side of the sliding block, the thread groove of the sliding block is connected to the center hole of the sliding block, the thread groove of the sliding block is threadedly connected with a locking thread rod, and the locking thread rod can resist the support rod.

8. The automatic tool changing machine for heat shrinkable tool holder according to claim 1, characterized in that: The support rod is provided with an electric guide rail, and a slider of the electric guide rail of the support rod is connected with the sliding block.

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