Machine tool fixture and machine tool

Abstract

The invention relates to the field of machine tool fixture design, in particular to a machine tool fixture and a machine tool. The machine tool clamp comprises three clamping devices, and each clamping device comprises a gear box II. A gear IV is rotationally connected into the gear box II, two racks I are slidably connected into the gear box II, and the two racks I are both connected with the gear IV in a meshed mode; a sliding block is fixedly connected to each rack I, and a baffle I is fixedly connected to each sliding block; a mounting box is fixedly connected to each baffle I, a baffle II is fixedly connected to each mounting box, a sliding rod is slidably connected to each baffle II, and a push block is fixedly connected to each sliding rod; a spring I is fixedly connected between the push block and the baffle II and arranged on the outer side of the sliding rod in a sleeving mode. The annular part clamping device aims at clamping annular parts and facilitating mounting and dismounting of the parts.

Description

Technical Field

[0001] This invention relates to the field of machine tool fixture design, and more specifically to a machine tool fixture and a machine tool. Background Technology

[0002] Machine tool fixtures are compact, quick, convenient, and labor-saving devices used to clamp workpieces and guide cutting tools. They play a crucial role in improving production efficiency and ensuring machining quality. However, there is a type of annular part that requires protection of its outer surface. Existing machine tool fixtures can only clamp the outer surface of the annular part, failing to provide effective protection. Furthermore, conventional machine tool fixtures use a rotating bolt to push a slider, which is laborious, prone to bolt loosening, and inconvenient for securing the workpiece. Additionally, the fixture needs to be bolted to the machine tool from the inside, hindering disassembly and reassembly. Therefore, it is necessary to design a machine tool fixture and machine tool to solve these problems. Summary of the Invention

[0003] The present invention provides a machine tool fixture and a machine tool, the purpose of which is to clamp ring-shaped parts and facilitate the installation and disassembly of the parts.

[0004] The above objectives are achieved through the following technical solutions:

[0005] A machine tool fixture includes three clamping devices, each of which includes a gearbox II.

[0006] Gear IV is rotatably connected inside gear box II, and two racks I are slidably connected inside gear box II. Both racks I are meshed with gear IV. A slider is fixed to each rack I, and a baffle I is fixed to each slider.

[0007] Each baffle I is fixedly connected to a mounting box, each mounting box is fixedly connected to a baffle II, a slide rod is slidably connected to the baffle II, and a push block is fixedly connected to the slide rod; a spring I is fixedly connected between the push block and the baffle II, and the spring I is sleeved on the outside of the slide rod.

[0008] Each mounting box contains two rotatably connected gears V, and each mounting box contains a slidably connected rack II, with each rack II meshing with a corresponding gear V; the two corresponding racks II are fixedly connected to a push block; each gear V has a threaded connection to a screw I, and each screw I passes through a corresponding mounting box; the two corresponding screws I are fixedly connected to clamps.

[0009] Each push block is fixedly connected to an anti-collision strip.

[0010] The three clamping devices are mounted on the top plate, and the corresponding gear box II is fixedly connected to the top plate; three pads are fixedly connected to the top plate.

[0011] A gear box I is fixedly connected below the top plate. An external gear ring is rotatably connected inside the gear box I. Three gears I are rotatably connected inside the gear box I, and all three gears I are meshed with the external gear ring. Each gear I has a screw II threadedly connected to its inner side. All three screws II pass through the top plate and the gear box I. Push plates are fixedly connected to the three screws II. A sleeve is fixedly connected to each gear I. Each sleeve passes through the top plate and the gear box II, and each sleeve is meshed with the corresponding gear IV.

[0012] Each screw II is fixedly connected to a baffle III below it, and three rotating boxes are fixedly connected to the bottom of the gear box I. Each rotating box contains a rotating plate, and each rotating plate is fixedly connected to the corresponding baffle III with a spring II.

[0013] An internal gear ring is fixedly connected to the inner side of the external gear ring. Three gears II are rotatably connected inside gear box I, and all three gears II are meshed with the internal gear ring. Gear III is rotatably connected inside gear box I, and gear III is meshed with the three gears II. A rotating shaft is fixedly connected to gear III, and the rotating shaft passes through the top plate. A ratchet is fixedly connected to the rotating shaft. A baffle is rotatably connected to the top plate, and the baffle can restrict the ratchet to rotate only counterclockwise. A handle is fixedly connected to the baffle, and a ratchet box is fixedly connected to the top plate.

[0014] A protective shell is fixedly connected to the bottom of the gear box I. A motor is fixedly connected inside the protective shell, and the output shaft of the motor passes through the protective shell. The output shaft of the motor is fixedly connected to the bottom of the gear box I. A base plate is fixedly connected to the bottom of the protective shell, and three support feet are fixedly connected to the bottom of the base plate.

[0015] The beneficial effects of the machine tool fixture and machine tool of the present invention are as follows:

[0016] Compared to traditional machine tool fixtures and machine tools, this invention designs three clamping devices. When the push plate is pushed, it can drive the three clamping devices to operate simultaneously. The three pairs of push blocks push inward at the same time, and the clamping plate moves downward, thereby completing the clamping of the ring-shaped part. It also designs a gear set consisting of an internal gear ring, gear II and gear III, and then achieves fine adjustment of each clamping device through the ratchet fixed to gear III. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a machine tool fixture and a machine tool.

[0018] Figure 2 This is a schematic diagram of the installation structure of the clamping device;

[0019] Figure 3 This is a schematic diagram of the clamping device.

[0020] Figure 4 This is a schematic diagram of rack I.

[0021] Figure 5This is a schematic diagram of the rack II structure;

[0022] Figure 6 This is a schematic diagram of the mounting structure of gear IV;

[0023] Figure 7 This is a schematic diagram of the internal structure of the gearbox;

[0024] Figure 8 This is a schematic diagram of the structure of gear II;

[0025] Figure 9 This is a schematic diagram of the push plate structure;

[0026] Figure 10 This is a schematic diagram of the structure of baffle III;

[0027] Figure 11 This is a schematic diagram of the protective shell structure;

[0028] Figure 12 This is a schematic diagram of the motor structure.

[0029] In the diagram: Top plate 101; Pad block 102; Gear box I 103; External gear ring 104; Internal gear ring 105; Gear I 106; Sleeve 107; Gear II 108; Gear III 109; Shaft 110; Ratchet 111; Baffle 112; Handle 113; Ratchet box 114; Stop block 115; Gear box II 201; Gear IV 202; Rack I 203; Slider 204; Baffle Ⅰ205; Mounting box 206; Gear V 207; Rack II 208; Push block 209; Anti-collision strip 210; Slide rod 211; Baffle II 212; Spring Ⅰ 213; Screw Ⅰ 214; Clamping plate 215; Push plate 301; Screw II 302; Baffle III 303; Rotating plate 304; Spring II 305; Protective shell 401; Motor 402; Base plate 403; Support foot 404. Detailed Implementation

[0030] See Figure 1-12 The diagram shows an embodiment of the present invention in which two racks I203 are simultaneously driven to slide by gear IV202. Further,

[0031] Each clamping device includes a gear box II 201, in which a gear IV 202 is rotatably connected, and two racks I 203 are slidably connected, both racks I 203 meshing with gear IV 202; a slider 204 is fixedly connected to each rack I 203, and a baffle I 205 is fixedly connected to each slider 204.

[0032] Gear box II 201 can protect the internal gear IV 202 and two racks I 203; when gear IV 202 rotates, it can drive the corresponding two racks I 203 to slide in opposite directions simultaneously through meshing; the two racks I 203 can drive the corresponding slider 204 and baffle I 205 to move in opposite directions simultaneously.

[0033] See Figure 1-12 The diagram shows an embodiment of the invention in which the pusher 209 clamps the annular part. Further,

[0034] Each baffle I 205 is fixedly connected to a mounting box 206, and each mounting box 206 is fixedly connected to a baffle II 212. A slide rod 211 is slidably connected to the baffle II 212, and a push block 209 is fixedly connected to the slide rod 211. A spring I 213 is fixedly connected between the push block 209 and the baffle II 212, and is sleeved on the outside of the slide rod 211. Each push block 209 is fixedly connected to a bumper strip 210.

[0035] The two baffles I 205 of each clamping device can slide inward simultaneously, thereby driving the corresponding baffle II 212, slide bar 211, push block 209 and spring I 213 to move inward simultaneously, thereby clamping the annular part through the push blocks 209 on both sides; the spring I 213 enables the push block 209 to maintain a tendency away from the corresponding baffle II 212, thereby enabling the push block 209 to generate a buffering effect when contacting the annular part; the anti-collision strip 210 can prevent damage to the annular part during the clamping process.

[0036] See Figure 1-12 The diagram shows an embodiment of the present invention in which the ring-shaped part is fixed by the clamp 215. Further,

[0037] Two gears V 207 are rotatably connected inside each mounting box 206, and racks II 208 are slidably connected inside each mounting box 206. Each rack II 208 is meshed with the corresponding gear V 207. The two corresponding racks II 208 are fixedly connected to the push block 209. Each gear V 207 is threaded with a screw I 214 inside, and each screw I 214 passes through the corresponding mounting box 206. Clamping plates 215 are fixedly connected to the two corresponding screws I 214.

[0038] When each pusher 209 is pushed to move closer to the corresponding baffle Ⅱ 212, it can push the corresponding two racks Ⅱ 208 to move, thereby driving the corresponding gear Ⅴ 207 to rotate; the rotation of gear Ⅴ 207 can drive the corresponding clamping plate 215 to move downward through the threaded connection, thereby fixing the ring part from above and preventing the ring part from falling off during processing.

[0039] See Figure 1-12A schematic diagram of an embodiment of the present invention, in which the clamping device is driven by the rotation of gear I106, is shown. Further,

[0040] Three clamping devices are mounted on the top plate 101, and the corresponding gear box II 201 is fixedly connected to the top plate 101. Three pads 102 are fixedly connected to the top plate 101. At the same time, a gear box I 103 is fixedly connected below the top plate 101. An external gear ring 104 is rotatably connected inside the gear box I 103, and three gears I 106 are rotatably connected inside the gear box I 103. All three gears I 106 are meshed with the external gear ring 104. Each gear I 106 has a screw II 302 threadedly connected to its inner side. All three screws II 302 pass through the top plate 101 and the gear box I 103. Push plates 301 are fixedly connected to the three screws II 302. Each gear I 106 has a sleeve 107 fixedly connected to it. Each sleeve 107 passes through the top plate 101 and the gear box II 201, and each sleeve 107 is fixedly connected to the corresponding gear IV 202.

[0041] The pad 102 protects the three clamping devices from shifting during use; the gear box I 103 protects the internal parts; the three gears I 106 mesh with the external gear ring 104, allowing them to rotate simultaneously, which in turn drives the three sleeves 107 and their corresponding gears IV 202 to rotate, thus enabling the three clamping devices to operate synchronously and preventing uneven force application; the push plate 301 supports the ring-shaped part, and pushing the push plate 301 simultaneously pushes the three screws II 302, which in turn drives the three gears I 106 to rotate. At this time, the ring-shaped part moves downward while the clamping devices clamp inward, thus completing the fixation of the ring-shaped part.

[0042] See Figure 1-12 The diagram shows an embodiment of the present invention in which the baffle Ⅲ 303 is able to return to its original position by means of spring Ⅱ 305. Further,

[0043] Each screw II 302 is fixedly connected to a baffle III 303 below it. Three rotating boxes 115 are fixedly connected to the bottom of the gear box I 103. Each rotating box 115 is rotatably connected to a rotating plate 304. Each rotating plate 304 is fixedly connected to the corresponding baffle III 303 by a spring II 305.

[0044] The rotating plate 304 can rotate with the spring II 305 to prevent the spring II 305 from twisting and being damaged; the rotating box 115 can provide an installation position for the rotating plate 304; the baffle III 303 and the rotating plate 304 provide an installation position for the spring II 305; when the push plate 301 moves downward and drives the three screws II 302 to move downward, it can pull the three springs II 305. When the processing of the ring part is completed, the three springs II 305 release their elastic force to drive the three screws II 302 and the push plate 301 to move upward and return to their original positions, while pushing out the ring part.

[0045] See Figure 1-12 A schematic diagram of an embodiment of the present invention in which the clamping device is fixed by ratchet 111 is shown. Further,

[0046] An internal gear ring 105 is fixedly connected to the inner side of the external gear ring 104. Three gears II 108 are rotatably connected inside the gear box I 103, and all three gears II 108 are meshed with the internal gear ring 105. Gear III 109 is rotatably connected inside the gear box I 103, and gear III 109 is meshed with the three gears II 108. A rotating shaft 110 is fixedly connected to gear III 109, and the rotating shaft 110 passes through the top plate 101. A ratchet 111 is fixedly connected to the rotating shaft 110. A baffle 112 is rotatably connected to the top plate 101, and the baffle 112 can restrict the ratchet 111 to rotate only counterclockwise. A handle 113 is fixedly connected to the baffle 112, and a ratchet box 114 is fixedly connected to the top plate 101.

[0047] The rotation of the outer gear ring 104 drives the rotation of the inner gear ring 105, which in turn drives the rotation of the three gears II 108 and III 109. The gear set formed by the inner gear ring 105, the three gears II 108 and III 109 allows the rotation of gear III 109 to fine-tune the rotation of the outer gear I 106, thereby improving the accuracy of the clamping device. The rotation of gear I 106 drives the rotating shaft 110 to rotate, which in turn drives the ratchet 111 to rotate. The ratchet 111 is limited by the baffle 112, so that the three clamping devices can maintain the clamping state. After the processing of the ring part is completed, the handle 113 is turned to drive the baffle 112 to rotate, which causes the ratchet to rotate in the opposite direction, completing the reset of the entire device.

[0048] See Figure 1-12 A schematic diagram of an embodiment of the present invention, in which the gearbox I103 is driven to rotate by a motor 402, is shown. Further,

[0049] A protective shell 401 is fixedly connected to the bottom of gear box I 103. A motor 402 is fixedly connected inside the protective shell 401. The output shaft of the motor 402 passes through the protective shell 401. The output shaft of the motor 402 is fixedly connected to the bottom of gear box I 103. A base plate 403 is fixedly connected to the bottom of the protective shell 401. Three support feet 404 are fixedly connected to the bottom of the base plate 403.

[0050] The motor 402 drives the gear box I103 to rotate through the output shaft, thereby realizing the processing of the ring-shaped part; the protective shell 401 can protect the motor 402; the base plate 403 and the three support feet 404 can support the entire device.

Claims

1. A machine tool fixture, characterised in that: It includes three clamping devices, each of which includes a gear box II (201), in which a gear IV (202) is rotatably connected, and two racks I (203) are slidably connected, both racks I (203) meshing with gears IV (202); a slider (204) is fixedly connected to each rack I (203), and a baffle I (205) is fixedly connected to each slider (204).

2. A machine tool fixture according to claim 1, characterised in that: Each baffle I (205) is fixedly connected to a mounting box (206), and each mounting box (206) is fixedly connected to a baffle II (212). A slide rod (211) is slidably connected to the baffle II (212), and a push block (209) is fixedly connected to the slide rod (211). A spring I (213) is fixedly connected between the push block (209) and the baffle II (212), and the spring I (213) is sleeved on the outside of the slide rod (211).

3. A machine tool fixture according to claim 2, characterised in that: Each mounting box (206) is rotatably connected to two gears V (207), and each mounting box (206) is slidably connected to a rack II (208). Each rack II (208) meshes with the corresponding gear V (207). The two corresponding racks II (208) are fixedly connected to the push block (209). Each gear V (207) is threaded with a screw I (214) on its inner side, and each screw I (214) passes through the corresponding mounting box (206). The two corresponding screws I (214) are fixedly connected to a clamping plate (215).

4. A machine tool holder according to claim 3, characterised in that: Each push block (209) is fixedly connected to a collision protection strip (210).

5. A machine tool holder according to claim 1, characterised in that: It also includes a top plate (101), three clamping devices are mounted on the top plate (101), and the corresponding gear box II (201) is fixed on the top plate (101); three pads (102) are fixed on the top plate (101).

6. A machine tool fixture according to claim 5, characterized in that: A gear box I (103) is fixedly connected below the top plate (101). An external gear ring (104) is rotatably connected inside the gear box I (103). Three gears I (106) are rotatably connected inside the gear box I (103). All three gears I (106) are meshed with the external gear ring (104). Each gear I (106) is threaded with a screw II (302) on its inner side. All three screws II (302) pass through the top plate (101) and the gear box I (103). A push plate (301) is fixedly connected to each of the three screws II (302). A sleeve (107) is fixedly connected to each gear I (106). Each sleeve (107) passes through the top plate (101) and the gear box II (201). Each sleeve (107) is fixedly connected to the corresponding gear IV (202).

7. A machine tool fixture according to claim 6, characterized in that: Each screw II (302) is fixedly connected to a baffle III (303) below it, and three rotating boxes (115) are fixedly connected to the bottom of the gear box I (103). Each rotating box (115) is rotatably connected to a rotating plate (304), and each rotating plate (304) is fixedly connected to the corresponding baffle III (303) with a spring II (305).

8. A machine tool fixture according to claim 6, characterised in that: An internal gear ring (105) is fixedly connected to the inner side of the external gear ring (104). Three gears II (108) are rotatably connected inside the gear box I (103), and all three gears II (108) mesh with the internal gear ring (105). Gear III (109) is rotatably connected inside the gear box I (103), and gear III (109) meshes with the three gears II (108). A rotating shaft (110) is fixedly connected to gear III (109), and the rotating shaft (110) passes through the top plate (101). A ratchet (111) is fixedly connected to the rotating shaft (110). A baffle (112) is rotatably connected to the top plate (101), and the baffle (112) can restrict the ratchet (111) to rotate only counterclockwise. A handle (113) is fixedly connected to the baffle (112), and a ratchet box (114) is fixedly connected to the top plate (101).

9. A machine tool holder according to claim 8, characterised in that: A protective shell (401) is fixedly connected to the bottom of the gear box I (103). A motor (402) is fixedly connected inside the protective shell (401). The output shaft of the motor (402) passes through the protective shell (401). The output shaft of the motor (402) is fixedly connected to the bottom of the gear box I (103). A base plate (403) is fixedly connected to the bottom of the protective shell (401). Three support feet (404) are fixedly connected to the bottom of the base plate (403).

10. A machine tool, characterized by The machine tool fixture includes any one of claims 1-9.

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