Clamping device for workpiece machining

Abstract

The invention relates to the technical field of workpiece machining, in particular to a workpiece machining clamping device which comprises a bottom plate, a base is arranged on the bottom plate, clamping parts are symmetrically arranged at the two ends of the bottom plate, and the base can drive the two clamping parts to move in a mirror image mode so as to clamp a rod-shaped workpiece. According to the invention, a worker regulates two groups of sliding plates to move through the base, and the two groups of sliding plates get close to drive two groups of contact rods to get close to each other; after the contact rod makes contact with the workpiece, the sliding plate continues to move, at the moment, the contact rod is static and moves relative to the sliding plate, a driving rack on the contact rod drives driven teeth to rotate, and therefore a bidirectional lead screw is driven to rotate, and the bidirectional lead screw rotates to drive sliding blocks on the two sides to get close to each other; and therefore, the clamping rings on the two sides are driven to get close to each other until the clamping rings clamp the periphery of the workpiece, automatic fixing of the workpiece is rapidly completed, centering of the workpiece is completed in the fixing process, the clamping steps are optimized, and the clamping efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of workpiece processing, and in particular to a clamping device for workpiece processing. Background Art

[0002] In the field of mechanical processing, stable fixation of workpieces is crucial to ensure processing accuracy and product quality. Traditional workpiece clamping equipment is usually operated manually or semi-automatically, such as using basic tools such as bolts and pressure plates to fix workpieces; with the improvement of industrial automation, the requirements for workpiece clamping devices have become more stringent, not only needing to be able to quickly and accurately fix workpieces of different shapes and sizes, but also needing to have high flexibility to adapt to the multi-variety small batch production mode.

[0003] For the processing of rod-shaped workpieces, traditional clamping devices lack the ability to automatically adjust during the clamping process. The workpiece needs to be adjusted again to center it after clamping. The adjustment process is complicated and time-consuming, and it is difficult to meet the needs of efficient production. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a clamping device for workpiece processing to solve the problem that the traditional clamping device cannot center the workpiece during the clamping process.

[0005] Based on the above purpose, the present invention provides a clamping device for workpiece processing, comprising a bottom plate, a base is arranged on the bottom plate, clamping parts are symmetrically arranged at both ends of the bottom plate, and the base can drive two groups of clamping parts to move in a mirror image to clamp a rod-shaped workpiece;

[0006] The clamping part includes a sliding plate, and the base can drive the sliding plate to move; a side support plate is provided on the top of the sliding plate, and a driving rod assembly is also provided to drive the side support plate to move in a vertical direction; a square hole is opened on the side support plate, and a contact rod is slidably provided in the square hole, and a driving rack is provided at the bottom of the contact rod; two groups of mounting plates are provided on a side surface of the side support plate close to the center of the base, and a bidirectional screw rod is rotatably arranged between the two groups of mounting plates, and the middle fixed sleeve of the bidirectional screw rod is provided with a driven tooth engaged with the driving rack; sliders are respectively screwed on the opposite external threads on the bidirectional screw rod, and a clamping ring for clamping the outer periphery of the workpiece is provided on the side of the slider away from the side support plate; the contact rod moves to drive the bidirectional screw rod to rotate through the driving rack and the driven tooth, driving the two groups of clamping rings to move and clamp the outer periphery of the workpiece;

[0007] The side support plate is provided with a reset assembly for driving the contact rod to reset.

[0008] Furthermore, the driving rod assembly includes a driving rod and a sliding rod, which are symmetrically arranged on the front and rear sides of the top of the sliding plate; the side support plate is slidably arranged between the driving rod and the sliding rod; and a driving assembly is arranged in the driving rod to drive the side support plate to move vertically.

[0009] Furthermore, the driving assembly includes a second threaded rod, a second threaded rod is rotatably provided at the bottom of the driving rod, a driving block is screwed on the second threaded rod, a strip hole is opened on the driving rod, and the driving block is fixedly connected to the side support plate by passing through the strip hole; a lower bevel gear is fixedly sleeved on the driving rod, a transmission rod is rotatably provided on the driving rod, an upper bevel gear meshing with the lower bevel gear is fixedly provided on one end of the transmission rod, and a driven wheel is fixedly connected to the other end.

[0010] Furthermore, a first vertical plate is also provided on the sliding plate, a first driving wheel is rotatably provided on the first vertical plate, and a same set of first transmission belts are sleeved between the first driving wheel and the driven wheel; a first driving plate for driving the first driving wheel to rotate is rotatably provided on the side of the sliding plate away from the driving rod.

[0011] Furthermore, the reset assembly includes a fixed plate, a fixed plate is fixedly provided on one side of the contact rod away from the center of the bottom plate, a swivel is rotatably provided on the side support plate, and a spring is connected between the swivel and the fixed plate.

[0012] Furthermore, the bottom plate includes a left side plate and a right side plate, and a telescopic rod is arranged between the two, one end of the telescopic rod passes through one side of the left side plate and is rotatably connected to the left side surface, and the other end passes through one side of the right side plate and is rotatably connected to the right side surface; both ends of the telescopic rod are respectively screwed with first threaded rods, and the external threads on the two groups of the first threaded rods are in opposite directions, and the ends of the two groups of the first threaded rods are respectively rotatably connected to one end of the inner cavity of the left side plate and the right side plate; moving blocks are respectively slidably arranged in the left side plate and the right side plate, and the two groups of the moving blocks are respectively screwed with the corresponding first threaded rods, and the tops of the left side plate and the right side plate are provided with transverse holes, and the two groups of the moving blocks are respectively penetrated with corresponding transverse holes and connected to the two groups of sliding plates.

[0013] Furthermore, the right end of the right side plate is rotatably connected to a third driving wheel, the third driving wheel is fixedly connected to the first threaded rod, the top of the right side plate is fixedly connected to a second vertical plate, the second vertical plate is rotatably connected to a second driving wheel, and the same set of second transmission belts are sleeved between the second driving wheel and the third driving wheel.

[0014] The beneficial effects of the present invention are as follows: in the clamping device for workpiece processing provided by the present invention, workers adjust the movement of two groups of sliding plates through the base, and the two groups of sliding plates approach each other, driving the two groups of contact rods to approach each other; after the contact rod contacts the workpiece again, the sliding plate will continue to move, and at this time the contact rod will be stationary and move relative to the sliding plate, and the driving rack on the contact rod will drive the driven gear to rotate, thereby driving the bidirectional lead screw to rotate, and the rotation of the bidirectional lead screw will drive the sliders on both sides to approach each other, thereby driving the clamping rings on both sides to approach each other until they are clamped on the periphery of the workpiece, quickly completing the automatic fixation of the workpiece and completing the centering of the workpiece during the fixing process, thereby optimizing the clamping steps and improving the clamping efficiency; after the workpiece is fixed, the set driving rod assembly can drive the clamped workpiece to move vertically upward to a suitable height, which is convenient for workers to process the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or 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 in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the first viewing angle of an embodiment of the present invention;

[0017] Figure 2 is a schematic diagram of a second viewing angle structure of an embodiment of the present invention;

[0018] Figure 3 It is a schematic diagram of the partial first-view structure of the clamping part according to an embodiment of the present invention;

[0019] Figure 4 It is a schematic diagram of the partial second viewing angle structure of the clamping part of an embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the bidirectional screw rod and the contact rod structure of an embodiment of the present invention;

[0021] Figure 6 This is a schematic diagram of the internal structure of the bottom plate according to an embodiment of the present invention;

[0022] Figure 7 Schematic diagram of the internal structure of the driving rod according to an embodiment of the present invention.

[0023] The markings in the figure are:

[0024] 1. Bottom plate; 101. Left side plate; 102. Right side plate; 103. Telescopic rod; 104. First threaded rod; 105. Moving block; 2. Base; 3. Sliding plate; 4. Driving rod; 401. Strip hole; 402. Second threaded rod; 403. Lower bevel gear; 404. Transmission rod; 405. Upper bevel gear; 406. Driving block; 407. Driven wheel; 5. Sliding rod; 6. Side support plate; 601. Swivel; 7. Contact rod; 701. Fixed plate; 702. Spring; 703. Drive rack; 8. Mounting plate; 9. Bidirectional lead screw; 901. Driven tooth; 10. Slider; 11. Clamping ring; 12. First vertical plate; 1201. First drive wheel; 1202. First drive plate; 1203. First transmission belt; 13. Second vertical plate; 1301. Second drive wheel; 14. Third drive wheel; 15. Second transmission belt. DETAILED DESCRIPTION

[0025] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0026] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, a clamping device for workpiece processing includes a bottom plate 1, a base 2 is arranged on the bottom plate 1, and clamping parts are symmetrically arranged at both ends of the bottom plate 1. The base 2 can drive two sets of clamping parts to move in a mirror image to clamp a rod-shaped workpiece;

[0028] The clamping part includes a sliding plate 3, and the base 2 can drive the sliding plate 3 to move; a side support plate 6 is arranged on the top of the sliding plate 3, and a driving rod assembly is also arranged to drive the side support plate 6 to move in the vertical direction; a square hole is opened on the side support plate 6, and a contact rod 7 is slidably arranged in the square hole, and a driving rack 703 is arranged at the bottom of the contact rod 7; two groups of mounting plates 8 are arranged on a side surface of the side support plate 6 close to the center of the base 2, and a bidirectional screw rod 9 is rotatably arranged between the two groups of mounting plates 8, and the middle fixed sleeve of the bidirectional screw rod 9 is provided with a screw rod meshing with the driving rack 703 The driven teeth 901 of the two-way screw rod 9 are respectively screwed with sliders 10 on the opposite external threads on the two-way screw rod 9, and a clamping ring 11 for clamping the outer periphery of the workpiece is provided on the side of the slider 10 away from the side support plate 6, and a strip-shaped sliding hole is opened on the side of the side support plate 6 close to the slider 10, and a guide rod is provided on the slider 10, and one end of the guide rod slides in the strip-shaped sliding hole to limit the slider 10; the contact rod 7 moves to drive the two-way screw rod 9 to rotate through the driving rack 703 and the driven teeth 901, and drives the two sets of clamping rings 11 to move and clamp on the outer periphery of the workpiece;

[0029] A reset assembly for driving the contact rod 7 to reset is arranged on the side support plate 6 .

[0030] In this embodiment, the worker places the rod-shaped workpiece on the base 2, and then adjusts the base plate 1 to drive the clamping parts on both sides to approach each other so as to clamp the clamping parts and move upward so that the worker can process the workpiece;

[0031] Specifically, the worker controls the movement of the two sets of sliding plates 3 through the base 2, and the two sets of sliding plates 3 approach each other, driving the two sets of contact rods 7 to approach each other; after the contact rods 7 contact the workpiece again, the sliding plates 3 will continue to move, and at this time the contact rods 7 will be stationary and move relative to the sliding plates 3, and the driving rack 703 on the contact rods 7 will drive the driven gear 901 to rotate, thereby driving the bidirectional screw rod 9 to rotate, and the rotation of the bidirectional screw rod 9 will drive the sliders 10 on both sides to approach each other, thereby driving the clamping rings 11 on both sides to approach each other until they are clamped on the periphery of the workpiece, and at this time, the base 2 is closed to complete the fixation of the workpiece;

[0032] After the workpiece is fixed, the drive rod assembly can drive the clamped workpiece to move vertically to a suitable height, making it easier for workers to process the workpiece.

[0033] Preferably, the driving rod assembly includes a driving rod 4 and a sliding rod 5, which are symmetrically arranged on the front and rear sides of the top of the sliding plate 3; the side support plate 6 is slidably arranged between the driving rod 4 and the sliding rod 5; a driving assembly is arranged in the driving rod 4 to drive the side support plate 6 to move vertically;

[0034] The driving assembly includes a second threaded rod 402, a second threaded rod 402 is rotatably provided at the bottom of the driving rod 4, a driving block 406 is screwed on the second threaded rod 402, a strip hole 401 is opened on the driving rod 4, and the driving block 406 is fixedly connected to the side support plate 6 by penetrating the strip hole 401; a lower bevel gear 403 is fixedly sleeved on the driving rod 4, a transmission rod 404 is rotatably provided on the driving rod 4, an upper bevel gear 405 meshing with the lower bevel gear 403 is fixedly provided on one end of the transmission rod 404, and a driven wheel 407 is fixedly connected to the other end;

[0035] The sliding plate 3 is also provided with a first vertical plate 12, on which a first driving wheel 1201 is rotatably provided, and a same set of first transmission belts 1203 are sleeved between the first driving wheel 1201 and the driven wheel 407; a first driving plate 1202 for driving the first driving wheel 1201 to rotate is rotatably provided on a side of the sliding plate 3 away from the driving rod 4;

[0036] In this embodiment, the worker drives the first driving wheel 1201 to rotate through the first driving plate 1202, and the first driving wheel 1201 drives the driven wheel 407 to rotate through the first transmission belt 1203. The driven wheel 407 drives the upper bevel gear 405 to rotate through the transmission rod 404, and the upper bevel gear 405 drives the second threaded rod 402 to rotate through the lower bevel gear 403. The rotation of the second threaded rod 402 will drive the driving block 406 to move vertically, thereby driving the side support plate 6 to move vertically, and then driving the clamped workpiece to move vertically to a suitable height for the worker to process the workpiece.

[0037] Preferably, the reset assembly includes a fixed plate 701, a fixed plate 701 is fixedly provided on one side of the contact rod 7 away from the center of the bottom plate 1, a swivel 601 is rotatably provided on the side support plate 6, and a spring 702 is connected between the swivel 601 and the fixed plate 701;

[0038] In an embodiment, when the contact rod 7 moves relative to the side support plate 6, the spring 702 will stretch and deform to start storing energy; when the workpiece is processed, the worker adjusts the side support plates 6 to move away from each other and reset, and the energy stored in the spring 702 is released to push the contact rod 7 to reset for the next use.

[0039] Preferably, the bottom plate 1 includes a left side plate 101 and a right side plate 102, between which a telescopic rod 103 is arranged, one end of the telescopic rod 103 passes through one side of the left side plate 101 and is rotatably connected to the left side surface, and the other end passes through one side of the right side plate 102 and is rotatably connected to the right side surface; both ends of the telescopic rod 103 are screwed with first threaded rods 104, respectively, and the external threads on the two groups of first threaded rods 104 are in opposite directions, and the ends of the two groups of first threaded rods 104 are rotatably connected to one end of the inner cavity of the left side plate 101 and the right side plate 102, respectively; moving blocks 105 are slidably arranged in the left side plate 101 and the right side plate 102, and the two groups of moving blocks 105 are screwed with the corresponding first threaded rods 104, respectively, and the tops of the left side plate 101 and the right side plate 102 are provided with transverse holes, and the two groups of moving blocks 105 are respectively penetrated with corresponding transverse holes and connected with the two groups of sliding plates 3;

[0040] The right end of the right side plate 102 is rotatably connected to the third driving wheel 14, the third driving wheel 14 is fixedly connected to the first threaded rod 104, the top of the right side plate 102 is fixedly connected to the second vertical plate 13, the second vertical plate 13 is rotatably connected to the second driving wheel 1301, and the same set of second transmission belts 15 are sleeved between the second driving wheel 1301 and the third driving wheel 14;

[0041] In this embodiment, the worker drives the second driving wheel 1301 to rotate, the second driving wheel 1301 drives the third driving wheel 14 to rotate through the second transmission belt 15, the third driving wheel 14 drives the first threaded rod 104 to rotate, thereby driving the two groups of moving blocks 105 to move in a mirror image, and further driving the two groups of sliding plates 3 to move in a mirror image;

[0042] In addition, by setting up the telescopic rod 103, the worker can adjust the mutual distance between the left plate 101 and the right plate 102 according to the size of the workpiece, thereby adjusting the distance between the two groups of side support plates 6 and the contact rod 7, so that adaptive adjustment can be made according to the length of the workpiece, increasing the applicability of the device.

[0043] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0044] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A clamping device for workpiece processing, comprising a bottom plate (1), on which a base (2) is arranged, characterized in that: Clamping parts are symmetrically arranged at both ends of the bottom plate (1), and the base (2) can drive two groups of clamping parts to move in a mirror-like manner to clamp a rod-shaped workpiece; The clamping portion comprises a sliding plate (3), and the base (2) is capable of driving the sliding plate (3) to move; a side support plate (6) is arranged on the top of the sliding plate (3), and a driving rod assembly is also arranged to drive the side support plate (6) to move in a vertical direction; a square hole is opened on the side support plate (6), and a contact rod (7) is slidably arranged in the square hole, and a driving rack (703) is arranged at the bottom of the contact rod (7); two groups of mounting plates (8) are arranged on a side surface of the side support plate (6) close to the center of the base (2), and the two groups of mounting plates (8) are connected to each other. A bidirectional screw rod (9) is rotatably arranged between the two sides, and a central fixed sleeve of the bidirectional screw rod (9) is provided with a driven tooth (901) meshing with a driving rack (703); sliders (10) are respectively screwed on opposite external threads on the bidirectional screw rod (9), and a clamping ring (11) for clamping the outer periphery of the workpiece is provided on the side of the slider (10) away from the side support plate (6); the contact rod (7) moves through the driving rack (703) and the driven tooth (901) to drive the bidirectional screw rod (9) to rotate, thereby driving the two sets of clamping rings (11) to move and clamp on the outer periphery of the workpiece; The side support plate (6) is provided with a reset component for driving the contact rod (7) to reset.

2. The workpiece processing clamping device according to claim 1, characterized in that: The driving rod assembly comprises a driving rod (4) and a sliding rod (5), which are symmetrically arranged on the front and rear sides of the top of the sliding plate (3); the side support plate (6) is slidably arranged between the driving rod (4) and the sliding rod (5); and a driving assembly is arranged in the driving rod (4) to drive the side support plate (6) to move vertically.

3. The workpiece processing clamping device according to claim 2, characterized in that: The driving assembly comprises a second threaded rod (402), a second threaded rod (402) is rotatably arranged at the bottom of the driving rod (4), a driving block (406) is screwed on the second threaded rod (402), a strip hole (401) is opened on the driving rod (4), and the driving block (406) is fixedly connected to the side support plate (6) by penetrating the strip hole (401); a lower bevel gear (403) is fixedly sleeved on the driving rod (4), a transmission rod (404) is rotatably arranged on the driving rod (4), an upper bevel gear (405) meshing with the lower bevel gear (403) is fixedly arranged on one end of the transmission rod (404), and a driven wheel (407) is fixedly connected to the other end.

4. The workpiece processing clamping device according to claim 3, characterized in that: The sliding plate (3) is also provided with a first vertical plate (12), on which a first driving wheel (1201) is rotatably provided, and between the first driving wheel (1201) and the driven wheel (407) is sleeved a same set of first transmission belts (1203); a first driving plate (1202) for driving the first driving wheel (1201) to rotate is rotatably provided on a side of the sliding plate (3) away from the driving rod (4).

5. The workpiece processing clamping device according to claim 1, characterized in that: The reset assembly comprises a fixed plate (701), a fixed plate (701) is fixedly arranged on a side of the contact rod (7) away from the center of the bottom plate (1), a swivel (601) is rotatably arranged on the side support plate (6), and a spring (702) is connected between the swivel (601) and the fixed plate (701).

6. The workpiece processing clamping device according to claim 1, characterized in that: The bottom plate (1) comprises a left side plate (101) and a right side plate (102), between which a telescopic rod (103) is arranged, one end of the telescopic rod (103) passes through one side of the left side plate (101) and is rotatably connected to the left side, and the other end passes through one side of the right side plate (102) and is rotatably connected to the right side; the two ends of the telescopic rod (103) are respectively screwed with first threaded rods (104), the external threads on the two groups of the first threaded rods (104) are in opposite directions, and the two groups of the first threaded rods (104) are connected to the left side plate (101) and the right side plate (102) are connected to the right side plate (102). The ends of the left plate (101) and the right plate (104) are rotatably connected to one end of the inner cavity of the left plate (101) and the right plate (102); movable blocks (105) are slidably arranged in the left plate (101) and the right plate (102), and the two groups of movable blocks (105) are respectively screwed to the corresponding first threaded rods (104); the tops of the left plate (101) and the right plate (102) are provided with transverse holes, and the two groups of movable blocks (105) are respectively penetrated by corresponding transverse holes and connected to the two groups of sliding plates (3).

7. The workpiece processing clamping device according to claim 6, characterized in that: The right end of the right side plate (102) is rotatably connected to a third driving wheel (14), the third driving wheel (14) is fixedly connected to the first threaded rod (104), the top of the right side plate (102) is fixedly connected to a second vertical plate (13), the second vertical plate (13) is rotatably connected to a second driving wheel (1301), and the same set of second transmission belts (15) are sleeved between the second driving wheel (1301) and the third driving wheel (14).

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