Rapid clamping device of engraving and milling machine

Abstract

The utility model relates to the field of clamping of engraving and milling machines, and discloses a rapid clamping device of an engraving and milling machine, which comprises a supporting seat, a fixing plate fixedly arranged on the supporting seat, a positioning plate slidably connected with the supporting seat, an ejector rod slidably connected with the supporting seat, a driving shaft rotatably arranged on the supporting seat, linked with the ejector rod, and used for abutting the ejector rod against the positioning plate. The driving shaft is provided with a locking rod, the supporting seat is provided with a plurality of locking holes corresponding to the locking rod, the supporting seat is provided with a coil spring, and one end of the coil spring is connected with the driving shaft. The utility model has the following advantages and effects: when the driving shaft is rotated, the driving shaft transmits power to the rack plate through the driving gear, the transmission gear and the driven gear, and the rack plate moves on the supporting seat under the driving of the driven gear and drives the ejector rod to abut against the positioning plate, so that the rapid positioning of a workpiece is realized; according to the utility model, the effect of quickly clamping and quickly detaching the workpiece can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping of engraving and milling machines, and particularly relates to a quick clamping device for an engraving and milling machine. Background Art

[0002] The quick clamping device of an engraving and milling machine is an auxiliary tool designed specifically to improve the clamping efficiency and accuracy of workpieces. These devices usually include a series of mechanical structures and control systems, which can achieve quick replacement and positioning of workpieces, reduce downtime, and improve production efficiency. The existing clamping devices have relatively cumbersome operation steps, and several screws or parts need to be installed and disassembled to achieve the positioning of the workpiece. The clamping and unloading of the workpiece are both relatively cumbersome. Content of the Utility Model

[0003] The purpose of the utility model is to provide a quick clamping device for an engraving and milling machine, which has the effect of quick clamping and unloading.

[0004] The above technical purpose of the utility model is achieved through the following technical solutions: A quick clamping device for an engraving and milling machine includes a support base. The support base is fixedly provided with a fixing plate and slidably connected with a positioning plate. The support base is slidably connected with a ejector rod. The support base is rotatably provided with a driving shaft. The driving shaft is linked with the ejector rod. The driving shaft is used to press the ejector rod against the positioning plate. The driving shaft is provided with a locking rod. The support base is provided with a plurality of locking holes corresponding to the locking rod. The support base is provided with a spiral spring. One end of the spiral spring is connected with the driving shaft.

[0005] By adopting the above technical solutions, by setting the positioning plate and the ejector rod, when the driving shaft rotates, the ejector rod is driven to press against one side of the positioning plate, so that the workpiece is pressed between the positioning plate and the fixing plate. When the workpiece needs to be disassembled, the spiral spring drives the driving shaft to rotate in the reverse direction. The driving shaft drives the ejector rod to move in the reverse direction, and the ejector rod is disengaged from the positioning plate. At this time, the workpiece can be manually removed from the support base, and the purpose of convenient and quick clamping and unloading of the workpiece can be achieved.

[0006] A further setting of the utility model is that: The support base is provided with a reset cavity. The driving shaft penetrates through the reset cavity. The reset cavity is fixedly provided with a reset shaft. The spiral spring is connected between the reset shaft and the driving shaft.

[0007] By adopting the above technical solutions, by setting the reset cavity, when the driving shaft rotates, the spiral spring wound around the reset shaft is wound around the driving shaft, and the spiral spring is stretched and deformed. When the locking rod and the locking hole are disengaged from contact, the spiral spring restores its deformation and drives the driving shaft to rotate in the reverse direction, and the purpose of automatic reset of the driving shaft can be achieved.

[0008] A further setting of the present utility model is that: at one end of the ejector rod away from the positioning plate, a rack plate is fixedly arranged; the support seat is rotationally connected with a driven shaft, a driven gear is coaxially arranged on the driven shaft, the driven gear meshes with the rack of the rack plate, and the driving shaft is linked with the driven shaft.

[0009] A further setting of the present utility model is that: the driving shaft and the driven shaft are linked by a belt connection or a gear connection.

[0010] A further setting of the present utility model is that: a driving gear is coaxially arranged on the driving shaft, a transmission gear is rotationally arranged on the support seat, and both the driving gear and the driven gear mesh with the transmission gear.

[0011] By adopting the above technical solution, when the driving shaft rotates forward and backward, the driven gear is driven to rotate forward and backward respectively through the transmission gear, so that the driven gear drives the rack plate to move towards the positioning plate and away from the positioning plate, and the purpose of positioning the positioning plate can be achieved.

[0012] A further setting of the present utility model is that: the diameter of the driving gear is larger than the diameter of the transmission gear, and the diameter of the transmission gear is larger than the diameter of the driven gear.

[0013] By adopting the above technical solution, the rotational speed of the driving gear is less than that of the transmission gear, and the rotational speed of the transmission gear is less than that of the driven gear. By rotating the driving shaft, the driving shaft with a small rotational speed drives the driven gear and the driven shaft to rotate with a large rotational speed, and the purpose of saving force and quickly driving the ejector rod to move can be achieved.

[0014] A further setting of the present utility model is that: a handle is arranged on the driving shaft, and the locking rod is arranged as a screw rod and is threadedly connected to the handle.

[0015] A further setting of the present utility model is that: a spring is connected between the positioning plate and the support seat, and the spring presses the positioning plate against the fixed plate.

[0016] By adopting the above technical solution, by arranging the spring, the positioning plate is pulled open and the workpiece is placed between the positioning plate and the fixed plate. At this time, under the action of the spring, the positioning plate fixes the workpiece between the two plates with a slight force, which is convenient for the subsequent ejector rod to position the positioning plate, and the purpose of conveniently positioning the workpiece can be achieved.

[0017] A further setting of the present utility model is that: the support seat is provided with a first sliding groove, both sides of the positioning plate are provided with first sliding blocks, and the first sliding blocks are embedded in the first sliding groove.

[0018] A further setting of the present utility model is that: second sliding blocks are arranged on both sides of the ejector rod and the rack plate, the support seat is provided with a second sliding groove, and the second sliding blocks are embedded in the second sliding groove.

[0019] The beneficial effects of the present utility model are as follows: Place the workpiece between the positioning plate and the fixing plate. The spring initially positions the workpiece. After adjusting the position and angle of the workpiece, rotate the driving shaft. The driving shaft transmits power to the rack plate through the driving gear, transmission gear, and driven gear. The rack plate moves on the support base under the drive of the driven gear and drives the ejector rod to abut against the positioning plate, realizing the rapid positioning of the workpiece. Compared with the prior art, the present utility model can achieve the effects of quickly clamping and quickly unloading the workpiece. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0022] Figure 2 is Figure 1 A partial structural schematic diagram located at the handle.

[0023] Figure 3 It is a top view of the present utility model.

[0024] Figure 4 is Figure 3 A sectional structural schematic diagram in the C-C direction in [it].

[0025] Figure 5 is Figure 3 A sectional structural schematic diagram in the D-D direction in [it].

[0026] In the figure, 1. Support base; 11. Fixing plate; 12. Positioning plate; 121. First slider; 122. Spring; 13. Ejector rod; 131. Second slider; 132. Rack plate; 14. First chute; 15. Second chute; 16. Driving shaft; 161. Driving gear; 162. Handle; 163. Locking rod; 17. Driven shaft; 171. Driven gear; 18. Transmission gear; 19. Locking hole; 2. Reset cavity; 21. Reset shaft; 22. Torsion spring. Detailed Embodiments

[0027] The technical solution of the present utility model will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0028] Embodiment, a quick clamping device for a carving and milling machine, as Figures 1-5 shown, includes a support base 1. A fixed plate 11 is fixedly arranged at the top end of the support base 1, and a positioning plate 12 is slidably connected. The support base 1 is provided with a first chute 14. First sliders 121 are arranged on both sides of the positioning plate 12, and the first sliders 121 are embedded in the first chute 14. A spring 122 is connected between the positioning plate 12 and the support base 1, and the spring 122 presses the positioning plate 12 against the fixed plate 11. A drive shaft 16 is rotatably connected to the support base 1. A reset cavity 2 is provided in the support base 1, and a reset shaft 21 is fixedly arranged in the reset cavity 2. The drive shaft 16 passes through the reset cavity 2, and a coil spring 22 is connected between the reset shaft 21 and the drive shaft 16. A drive gear 161 is coaxially arranged on the drive shaft 16. A push rod 13 is slidably connected to one side of the support base 1 close to the positioning plate 12. The push rod 13 is fixedly connected with a rack plate 132. The push rod 13 and the rack plate 132 are both provided with second sliders 131. The support base 1 is provided with a second chute 15, and the second sliders 131 are embedded in the second chute 15. A driven shaft 17 is rotatably connected to the support base 1. A driven gear 171 is coaxially arranged on the driven shaft 17, and the driven gear 171 meshes with the rack on the rack plate 132. A transmission gear 18 is rotatably arranged on the support base 1. The driving gear and the driven gear 171 both mesh with the transmission gear 18. The diameter of the driving gear is larger than that of the transmission gear 18, and the diameter of the transmission gear 18 is larger than that of the driven gear 171. A handle 162 is arranged on the drive shaft 16, and a locking rod 163 is threadedly connected to the handle 162. The locking rod 163 is set as a screw rod, and the support base 1 is provided with a number of locking holes 19 corresponding to the locking rod 163.

[0029] Its working principle is as follows: Pull open the positioning plate 12, place the workpiece between the positioning plate 12 and the fixed plate 11. Under the action of the spring 122, the workpiece is stably placed between the positioning plate 12 and the fixed plate 11. Then manually rotate the handle 162. The rotation of the handle 162 drives the drive shaft 16 to rotate. The rotation of the drive shaft 16 winds the coil spring 22 wound on the reset shaft 21 onto the drive shaft 16. At the same time, the drive shaft 16 drives the drive gear 161 to rotate. The drive gear 161 drives the driven gear 171 to rotate at a speed several times greater than its own through the transmission gear 18. The driven gear 171 drives the rack plate 132 to move on the support base 1. The rack plate 132 presses the ejector rod 13 against the positioning plate 12. The positioning plate 12 presses the workpiece against the fixed plate 11 and then fixes it in the locking hole 19 through the locking rod 163. At this time, the positioning is completed. When the workpiece needs to be removed, take out the locking rod 163 from the locking hole 19. At this time, the coil spring 22 resumes its deformation and quickly contracts from the drive rod onto the reset shaft 21. The coil spring 22 drives the drive rod to rotate in the reverse direction. Under the linkage of the transmission gear 18, the driven gear 171 drives the rack plate 132 to move in the reverse direction. The ejector rod 13 is disengaged from the positioning plate 12, facilitating the rapid removal of the workpiece.

Claims

1. A quick clamping device for a carving and milling machine, characterized in that: It includes a support base (1). The support base (1) is fixedly provided with a fixing plate (11) and slidably connected with a positioning plate (12). The support base (1) is slidably connected with a ejector rod (13). The support base (1) is rotatably provided with a drive shaft (16). The drive shaft (16) is linked with the ejector rod (13). The drive shaft (16) is used to press the ejector rod (13) against the positioning plate (12). The drive shaft (16) is provided with a locking rod (163). The support base (1) is provided with a number of locking holes (19) corresponding to the locking rod (163). The support base (1) is provided with a coil spring (22). One end of the coil spring (22) is connected with the drive shaft (16).

2. The quick clamping device of a carving and milling machine according to claim 1, wherein: The support base (1) is provided with a reset cavity (2). The drive shaft (16) passes through the reset cavity (2). The reset cavity (2) is fixedly provided with a reset shaft (21). The coil spring (22) is connected between the reset shaft (21) and the drive shaft (16).

3. The quick clamping device of a carving and milling machine according to claim 2, characterized in that: One end of the ejector rod (13) far away from the positioning plate (12) is fixedly provided with a rack plate (132). The support base (1) is rotatably connected with a driven shaft (17). The driven shaft (17) is coaxially provided with a driven gear (171). The driven gear (171) meshes with the rack of the rack plate (132). The drive shaft (16) is linked with the driven shaft (17).

4. The quick clamping device of a carving and milling machine according to claim 3, characterized in that: The drive shaft (16) and the driven shaft (17) are linked by a belt connection or a gear connection.

5. The quick clamping device of a carving and milling machine according to claim 4, characterized in that: The drive shaft (16) is coaxially provided with a drive gear (161). The support base (1) is rotatably provided with a transmission gear (18). Both the drive gear (161) and the driven gear (171) mesh with the transmission gear (18).

6. The quick clamping device of a carving and milling machine according to claim 5, characterized in that: The diameter of the drive gear (161) is larger than the diameter of the transmission gear (18). The diameter of the transmission gear (18) is larger than the diameter of the driven gear (171).

7. The quick clamping device of a carving and milling machine according to claim 1, characterized in that: The drive shaft (16) is provided with a handle (162). The locking rod (163) is set as a screw rod and is threadedly connected to the handle (162).

8. The quick clamping device of a carving and milling machine according to claim 1, characterized in that: A spring (122) is connected between the positioning plate (12) and the support base (1). The spring (122) presses the positioning plate (12) against the fixing plate (11).

9. The quick clamping device of a carving and milling machine according to claim 1, wherein: The support base (1) is provided with a first chute (14). Both sides of the positioning plate (12) are provided with first sliders (121). The first sliders (121) are embedded in the first chute (14).

10. The quick clamping device of a carving and milling machine according to claim 3, characterized in that: Both sides of the ejector rod (13) and the rack plate (132) are provided with second sliders (131). The support base (1) is provided with a second chute (15). The second sliders (131) are embedded in the second chute (15).

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