A new type of fixture for fixing workpieces

Abstract

The utility model discloses a new type of clamp for fixing a workpiece, including a reference clamping mechanism mounted on either side of a platform, and a movable clamping mechanism mounted on the other side of the platform and symmetrical to the reference clamping mechanism; the movable clamping mechanism includes a movable side plate clamp slidably mounted on the platform, a movable pressing assembly slidably mounted on the platform and located inside the movable side plate clamp and symmetrical to the movable side plate clamp, and a movable gantry clamp assembly slidably mounted in the middle of the platform and extending and moving toward the movable side plate clamp. The utility model provides a new type of clamp for fixing a workpiece, which effectively fixes the workpiece, has high stability after fixing, and has accurate fixing position, which effectively improves the accuracy of workpiece processing.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece processing, in particular to a new clamp for fixing a workpiece. Background Art

[0002] In order to realize different workpiece structures, different processing machinery mechanisms need to be set up accordingly, wherein the processing machinery structures include welding lathes for welding workpieces, fixing fixtures for fixing workpieces, etc. Conventional workpieces are rectangular or truncated, and the corresponding processing machinery for these workpieces has relatively mature products on the market. However, for some workpieces with higher precision requirements and more special shapes, such as overall cover-shaped workpieces, there are no related fixtures on the market for fixed processing, so there is a need for a fixture that can fix and clamp such workpieces. Utility Model Content

[0003] In view of the above-mentioned shortcomings, the purpose of the utility model is to provide a new type of clamp for fixing a workpiece, which can effectively fix the workpiece, and has high stability after fixation, accurate fixing position, and effectively improves the accuracy of workpiece processing.

[0004] The technical solution adopted by the utility model to achieve the above-mentioned purpose is:

[0005] A new type of clamp for fixing a workpiece, comprising a reference clamping mechanism mounted on either side of a platform, and a movable clamping mechanism mounted on the other side of the platform and symmetrical to the reference clamping mechanism; the movable clamping mechanism comprises a movable side panel clamp slidably mounted on the platform, a movable pressing assembly slidably mounted on the platform, located inside the movable side panel clamp and symmetrical to the movable side panel clamp, and a movable gantry clamping assembly slidably mounted in the middle of the platform and extending toward the movable side panel clamp.

[0006] As a further improvement of the present invention, the movable side panel clamp includes a movable side panel cylinder support frame mounted on the side of the platform, a movable side panel driving cylinder fixedly arranged on the movable side panel cylinder support frame and its output shaft is facing the middle of the platform, and a movable side panel clamping plate arranged on the output shaft of the movable side panel driving cylinder; the movable side panel clamping plate includes a movable side panel bottom plate fixedly arranged on the output shaft of the movable side panel driving cylinder and in an I-shape as a whole, a movable side panel body vertically standing on the movable side panel bottom plate, at least one movable side panel fixing plate fixed on the side of the movable side panel body facing outward and the lower end fixed on the movable side panel bottom plate, and at least one movable side panel bearing plate fixed on the inner side surface of the movable side panel body.

[0007] As a further improvement of the present utility model, the movable pressing assembly includes at least one movable pressing cylinder support frame erected on the platform and close to the middle of the platform, at least one movable pressing driving cylinder correspondingly and fixedly arranged at the upper end of the movable pressing cylinder support frame and with its output shaft facing the direction of the movable side plate clamp, a movable pressing plate fixedly arranged on the output shaft of the movable pressing driving cylinder, and at least one movable pressing bearing plate fixedly arranged on the inner side surface of the movable pressing plate.

[0008] As a further improvement of the present utility model, the movable gantry clamping assembly includes a movable gantry cylinder support frame erected in the middle of the platform, a movable gantry driving cylinder fixed at the top end of the movable gantry cylinder support frame and with its output shaft facing the direction of the movable side plate clamp, a movable gantry body fixed on the output shaft of the movable gantry driving cylinder, and at least one movable side clamping cylinder arranged on the movable gantry body.

[0009] As a further improvement of the present utility model, the movable gantry body includes a movable gantry bottom plate integrally in a U shape, and a movable gantry vertical plate vertically standing at the outer end of one side of the movable gantry bottom plate and integrally in a right trapezoid shape; the number of the movable side clamping cylinders is 3 groups, which are respectively and correspondingly fixed on the inclined side, the upper base, and the right angle side of the movable gantry vertical plate.

[0010] As a further improvement of the present utility model, the reference clamping mechanism includes a fixed side plate clamp erected on the platform, a fixed pressing assembly slidably arranged on the platform inside the fixed side plate clamp and symmetrical with the fixed side plate clamp, and a fixed gantry clamping assembly slidably arranged in the middle of the platform and extending and moving towards the direction of the fixed side plate clamp.

[0011] As a further improvement of the present utility model, the fixed side plate clamp includes a fixed side plate clamping plate erected on the side of the platform; the fixed side plate clamping plate includes a fixed side plate bottom plate erected on the side of the platform, a fixed side plate body vertically standing on the fixed side plate bottom plate, at least one fixed side plate fixing plate with its side fixed on the outer side of the fixed side plate body facing the outside and its lower end fixed on the fixed side plate bottom plate, and at least one fixed side plate bearing plate fixed on the inner side surface of the fixed side plate body.

[0012] As a further improvement of the present utility model, the fixed pressing assembly includes at least one fixed pressing cylinder support frame erected on the platform and close to the middle of the platform, at least one fixed pressing driving cylinder correspondingly and fixedly arranged at the upper end of the fixed pressing cylinder support frame and with its output shaft facing the direction of the movable side plate clamp, a fixed pressing plate fixedly arranged on the output shaft of the fixed pressing driving cylinder, and at least one fixed pressing bearing plate fixedly arranged on the inner side surface of the fixed pressing plate.

[0013] As a further improvement of the present utility model, the fixed gantry clamping assembly includes a fixed gantry cylinder support frame erected in the middle of the platform, a fixed gantry driving cylinder fixed at the top of the fixed gantry cylinder support frame and with its output shaft facing the direction of the fixed side plate clamp, a fixed gantry body fixed on the output shaft of the fixed gantry driving cylinder, and at least one fixed side clamping cylinder arranged on the fixed gantry body.

[0014] As a further improvement of the present utility model, the fixed gantry body includes a fixed gantry bottom plate integrally in a C shape, and a fixed gantry vertical plate vertically standing at one outer end of the fixed gantry bottom plate and integrally in a right trapezoid shape; the number of the fixed side clamping cylinders is 3 groups, which are respectively and correspondingly fixed on the hypotenuse, the upper base, and the right-angle side of the fixed gantry vertical plate.

[0015] The beneficial effects of the present utility model are as follows:

[0016] By setting the present new fixture to include a reference clamping mechanism erected on any one side of the platform and a movable clamping mechanism erected on the other side of the platform and symmetrical to the reference clamping mechanism. The workpiece is correspondingly placed between the reference clamping mechanism and the movable clamping mechanism. Taking the reference clamping mechanism as a fixed reference plane, the movable clamping mechanism is adjusted to clamp the workpiece, realizing the fixation of the workpiece, and the stability after fixation is high, the fixation position is accurate, effectively improving the accuracy of workpiece processing.

[0017] By setting the movable clamping mechanism to include a movable side plate clamp slidably arranged on the platform, a movable pressing assembly slidably arranged on the platform inside the movable side plate clamp and symmetrical to the movable side plate clamp, and a movable gantry clamping assembly slidably arranged in the middle of the platform and extending and moving towards the direction of the movable side plate clamp. When it is necessary to clamp the workpiece, the movable side plate clamp is activated to move towards the middle of the platform to press against the outer side of the workpiece to form a preliminary fixation. The movable pressing assembly is activated to move towards the direction of the movable side plate clamp, so as to press against the inner side of the workpiece to form a further fixation. The movable gantry clamping assembly moves towards the direction of the movable side plate clamp, and it presses against the upper part of the workpiece from the upper end. The lower end of the side wall of the workpiece presses against the movable side plate clamp, and the upper and lower ends of the workpiece are fixed. Cooperating with the fixation of the left and right ends, the overall fixation of the workpiece is realized, and the stability after fixation is high, adapting to the shape of the workpiece, the fixation position is accurate, effectively improving the accuracy of workpiece processing.

[0018] The above is an overview of the technical solution of the utility model. The following further describes the present utility model in combination with the drawings and specific embodiments. Description of the Drawings

[0019] Figure 1 It is an overall schematic diagram of the utility model;

[0020] Figure 2 This is an overall schematic diagram of the utility model after removing the workpiece;

[0021] Figure 3 It is a structural schematic diagram of the movable clamping mechanism;

[0022] Figure 4 is another structural schematic diagram of the movable clamping mechanism;

[0023] Figure 5 It is a structural schematic diagram of a movable side panel splint;

[0024] Figure 6 It is a structural schematic diagram of a movable pressing assembly;

[0025] Figure 7 is a structural schematic diagram of the reference clamping mechanism;

[0026] Figure 8 is another structural schematic diagram of the reference clamping mechanism;

[0027] Fig. 9 It is a schematic diagram of the structure for fixing the side panel splint;

[0028] Fig.10 It is a schematic diagram of the structure of the fixed pressing assembly;

[0029] Fig.11 It is the overall schematic diagram of the workpiece;

[0030] Fig.12 It is the internal schematic diagram of the workpiece;

[0031] In the figure: 1, reference clamping mechanism; 11, fixed side panel clamp; 111, fixed side panel bottom plate; 112, fixed side panel body; 113, fixed side panel fixing plate; 114, fixed side panel bearing plate; 12, fixed pressing assembly; 121, fixed pressing cylinder support frame; 122, fixed pressing drive cylinder; 123, fixed pressing plate; 124, fixed pressing bearing plate; 13, fixed gantry clamping assembly; 131 , fixed gantry cylinder support frame; 132, fixed gantry drive cylinder; 133, fixed gantry body; 1331, fixed gantry bottom plate; 1332, fixed gantry vertical plate; ; 134, fixed side clamping cylinder; 2, movable clamping mechanism; 21, movable side panel clamp; 211, movable side panel cylinder support frame; 212, movable side panel drive cylinder; 213, movable side panel clamp; 2131, movable side Plate bottom plate; 2132, movable side plate body; 2133, movable side plate fixing plate; 2134, movable side plate bearing plate; 22, movable pressing assembly; 221, movable pressing cylinder support frame; 222, movable pressing drive cylinder; 223, movable pressing plate; 224, movable pressing bearing plate; 23, movable gantry clamping assembly; 231, movable gantry cylinder support frame; 232, movable gantry drive cylinder; 233. Movable gantry body; 2331. Movable gantry bottom plate; 2332. Movable gantry vertical plate; 234. Movable side clamping cylinder; 235. Movable buffer pressure strip; 24. Movable side panel guide assembly; 241. Movable side panel guide rail; 242. Movable side panel slider; 25. Movable gantry guide assembly; 251. Movable gantry guide rail; 252. Movable gantry slider; 3. Platform; 4. Workpiece. DETAILED DESCRIPTION

[0032] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0033] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Please refer to Figures 1 to 12 The embodiment of the utility model provides a new type of clamp for fixing a workpiece, including a reference clamping mechanism 1 mounted on either side of a platform 3, and a movable clamping mechanism 2 mounted on the other side of the platform 3 and symmetrical to the reference clamping mechanism 1; the movable clamping mechanism 2 includes a movable side panel clamp 21 slidably arranged on the platform 3, a movable pressing component 22 slidably arranged on the platform 3, located on the inner side of the movable side panel clamp 21 and symmetrical to the movable side panel clamp 21, and a movable gantry clamping component 23 slidably arranged in the middle of the platform 3 and extending toward the movable side panel clamp 21.

[0037] like Figures 1 to 12 As shown, the novel clamp is configured to include a reference clamping mechanism 1 mounted on either side of the platform 3, and a movable clamping mechanism 2 mounted on the other side of the platform 3 and symmetrical to the reference clamping mechanism 1. The workpiece 4 is placed between the reference clamping mechanism 1 and the movable clamping mechanism 2, and the reference clamping mechanism 1 is used as a fixed reference surface. The movable clamping mechanism 2 is adjusted to clamp the workpiece 4, thereby achieving fixation of the workpiece 4, and the stability after fixation is high, the fixed position is accurate, and the machining accuracy of the workpiece 4 is effectively improved.

[0038] like Figures 2 to 6As shown, by configuring the movable clamping mechanism 2 to include a movable side panel clamp 21 slidably arranged on the platform 3, a movable pressing component 22 slidably arranged on the platform 3, located inside the movable side panel clamp 21 and symmetrical to the movable side panel clamp 21, and a movable gantry clamping component 23 slidably arranged in the middle of the platform 3 and extending and moving toward the movable side panel clamp 21, when the workpiece 4 needs to be clamped, the movable side panel clamp 21 starts to move toward the middle of the platform 3, pressing the outer edge of the workpiece 4 to form a preliminary fixation, and the The movable pressing component 22 starts to move toward the movable side panel clamp 21, thereby pressing the inner side edge of the workpiece 4 to further fix it. The movable gantry clamping component 23 moves toward the movable side panel clamp 21, and presses the upper part of the workpiece 4 from the upper end. The lower end of the side wall of the workpiece 4 is pressed against the movable side panel clamp 21. The upper and lower ends of the workpiece 4 are fixed, and the left and right ends are fixed, thereby realizing the overall fixation of the workpiece 4. The stability after fixation is high, adapting to the shape of the workpiece 4, and the fixing position is accurate, which effectively improves the accuracy of the workpiece 4 processing.

[0039] In this embodiment, the workpiece 4 is in the shape of a cover as a whole. Figure 11 to Figure 12 As shown, the middle part is a rectangular plate body, and both sides and the front part of the plate body are provided with special-shaped plates extending downward, which can also be arranged according to actual conditions.

[0040] The specific method of fixing the workpiece 4 by the movable side plate fixture 21 is as follows: Figures 2 to 5 As shown, the movable side plate fixture 21 includes a movable side plate cylinder support frame 211 mounted on the side of the platform 3, a movable side plate driving cylinder 212 fixedly mounted on the movable side plate cylinder support frame 211 and with its output shaft facing the middle of the platform 3, and a movable side plate clamp 213 arranged on the output shaft of the movable side plate driving cylinder 212. The movable side plate cylinder support frame 211 is used to support the movable side plate driving cylinder 212 and fix the movable side plate driving cylinder 212 at a suitable height. When it is necessary to fix the workpiece 4, the movable side plate driving cylinder 212 is started, and its output shaft extends toward the middle of the platform 3, thereby driving the movable side plate clamp 213 fixed on its output shaft to move synchronously toward the middle of the platform 3 and then press an outer side wall corresponding to the workpiece 4 to achieve preliminary fixation of the workpiece 4.

[0041] Regarding the specific structural arrangement of the movable side plate clamping plate 213, as shown in FIG. Figures 2 to 4As shown, the movable side plate clamping plate 213 includes a movable side plate bottom plate 2131 fixedly arranged on the output shaft of the movable side plate driving cylinder 212 and in an I-shaped shape as a whole, a movable side plate body 2132 vertically standing on the movable side plate bottom plate 2131, at least one movable side plate fixing plate 2133 whose side edge is fixed on the side of the movable side plate body 2132 facing outward and whose lower end is fixed on the movable side plate bottom plate 2131, and at least one movable side plate bearing plate 2134 fixed on the inner side of the movable side plate body 2132. The movable side plate bottom plate 2131 is connected to the output shaft of the movable side plate driving cylinder 212, so that the movable side plate driving cylinder 212 drives the entire movable side plate clamping plate 213 by driving the movable side plate bottom plate 2131, and the movable side plate body 2132 connected to the movable side plate bottom plate 2131 presses the outer wall of the workpiece 4 to achieve fixation. The movable side panel fixing plate 2133 is arranged such that the side edge is fixed on the side of the movable side panel body 2132 facing outward and the lower end is fixed on the movable side panel bottom plate 2131, so that the movable side panel body 2132 is stably fixed on the movable side panel bottom plate 2131. The movable side panel fixing plate 2133 is triangular in shape as a whole, which is more stable and not easy to collapse.

[0042] In order to make the movable side plate fixture 21 slide better on the platform 3, as shown in FIG. Figures 2 to 3 As shown, the movable clamping mechanism 2 also includes a movable side panel guide assembly 24 mounted on the platform 3 and located at the lower end of the movable side panel clamp 21, the movable side panel guide assembly 24 includes a movable side panel guide rail 241 symmetrically arranged below the two ends of the movable side panel bottom plate 2131, and at least one movable side panel slider 242 corresponding to the movable side panel guide rail 241, and the movable side panel bottom plate 2131 is fixed on the movable side panel slider 242. When the movable side panel clamp 21 slides on the platform 3, the movable side panel bottom plate 2131 moves synchronously, so that the movable side panel slider 242 fixed at the lower end of the movable side panel bottom plate 2131 is driven to slide on the movable side panel guide rail 241, and then the movable side panel bottom plate 2131 is guided and restricted by the movable side panel guide rail 241, so that the movable side panel bottom plate 2131 moves in a straight line, thereby improving the moving efficiency and accuracy of the movable side panel clamp 21, and making the fixing of the new clamp more accurate.

[0043] The specific method of fixing the workpiece 4 by the movable pressing assembly 22 is as follows: Figures 2 to 4 as well as Figure 6As shown, the movable pressing assembly 22 includes at least one movable pressing cylinder support frame 221 mounted on the platform 3 and close to the middle of the platform 3, at least one movable pressing driving cylinder 222 fixedly mounted on the upper end of the movable pressing cylinder support frame 221 and with its output shaft facing the movable side plate fixture 21, a movable pressing plate 223 fixedly mounted on the output shaft of the movable pressing driving cylinder 222, and at least one movable pressing bearing plate 224 fixed on the inner side of the movable pressing plate 223. The movable pressing cylinder support frame 221 is used to support and fix the movable pressing driving cylinder 222, and fix the movable pressing driving cylinder 222 to a suitable height position. When the workpiece 4 needs to be fixed, the movable clamping drive cylinder 222 is started, driving the movable clamping plate 223 fixed on its output shaft and the movable clamping bearing plate 224 fixed on the movable clamping plate 223 to move toward the movable side plate clamp 21, thereby pressing and fixing the inner side wall of the workpiece 4 to achieve further fixation of the workpiece 4. At least one movable pressing supporting plate 224 is arranged on the inner side surface of the movable pressing plate 223, and the movable pressing supporting plate 224 matches the shape of the workpiece 4. For example, in the present embodiment, a T-shaped rail is formed on the inner wall of the workpiece 4. In order to avoid the T-shaped rail, a total of three movable pressing supporting plates 224 are arranged, which are respectively arranged at the upper end of the inner side surface of the movable pressing plate 223, the left side of the inner side surface of the movable pressing plate 223, and the right side of the inner side surface of the movable pressing plate 223, so as to effectively avoid the T-shaped rail and effectively press against the T-shaped rail, so as to press the inner side surface of the workpiece 4 and further fix the workpiece 4. The shape and number of the movable pressing supporting plates 224 can be set according to the actual situation of the workpiece 4, so no specific limitation is made here.

[0044] Preferably, Figures 2 to 4 As shown, the number of the movable pressing driving cylinder 222 and the movable pressing cylinder support frame 221 is 2 sets, which are respectively arranged on both sides of the movable pressing plate 223, so as to apply force evenly to the movable pressing plate 223 and improve the pressing firmness of the movable pressing component 22 on the workpiece.

[0045] The specific method of fixing the upper end of the workpiece 4 by the movable gantry clamping assembly 23 is as follows: Figures 2 to 4As shown, the movable gantry clamping assembly 23 includes a movable gantry cylinder support frame 231 erected in the middle of the platform 3, a movable gantry driving cylinder 232 fixed to the top of the movable gantry cylinder support frame 231 and with its output shaft facing the direction of the movable side plate clamp 21, a movable gantry body 233 fixed to the output shaft of the movable gantry driving cylinder 232, and at least one movable side clamping cylinder 234 arranged on the movable gantry body 233. The movable gantry cylinder support frame 231 is used to support and fix the movable gantry driving cylinder 232 and lift the movable gantry driving cylinder 232 to a suitable height.

[0046] Regarding the specific structural setting of the movable gantry body 233, such as Figures 2 to 4 As shown, the movable gantry body 233 includes a movable gantry bottom plate 2331 that is integrally in a U-shaped form, and a movable gantry vertical plate 2332 that is vertically erected at one outer end of the movable gantry bottom plate 2331 and is integrally in a right trapezoidal form; the number of the movable side clamping cylinders 234 is 3 groups, which are respectively fixed to the inclined side, the upper base, and the right-angled side of the movable gantry vertical plate 2332. By arranging a movable gantry vertical plate 2332 that is vertically erected at one outer end of the movable gantry bottom plate 2331 and is integrally in a right trapezoidal form on the movable gantry bottom plate 2331, the movable side clamping cylinders 234 arranged on the movable gantry vertical plate 2332 can be arranged perpendicular to the movable gantry bottom plate 2331, which is convenient for the movable side clamping cylinders 234 to press against the outer surface of the upper end of the workpiece 4.

[0047] Preferably, as Figures 2 to 4 As shown, a movable buffer pressing strip 235 can also be correspondingly arranged on the movable gantry driving cylinder 232, so as to realize the close fitting and pressing of the workpiece 4 and prevent the damage caused by the direct pressing of the movable gantry driving cylinder 232 on the workpiece 4.

[0048] As Figures 2 to 4As shown, when the workpiece 4 needs to be fixed, the movable gantry driving cylinder 232 is started, driving the movable gantry base plate 2331 connected to its output shaft to move toward the movable side plate fixture 21, so that the movable gantry body 233 moves as a whole toward the movable side plate fixture 21, and the movable side clamping cylinders 234 arranged on the movable gantry body 233 are synchronously moved to the top of the workpiece 4, and the three groups of movable side clamping cylinders 234 are started, and their output shafts extend toward the workpiece 4, thereby driving the movable buffer pressing strips 235 arranged thereon to press toward the workpiece 4, and the movable side clamping cylinders 234 on the hypotenuse The extended movable buffer pressing strip 235 presses on the upper surface of the special-shaped plate at the front of the workpiece 4, the movable buffer pressing strip 235 extended by the movable side clamping cylinder 234 on the upper bottom presses on the upper surface of the rectangular plate of the workpiece 4, and the movable buffer pressing strip 235 extended by the movable side clamping cylinder 234 on the right-angle side presses on the upper surface of the special-shaped plate at the rear end of the workpiece 4. The three groups of movable side clamping cylinders 234 cooperate with the movable side plate clamp 21 and the movable clamping assembly 22 to stably fix one side of the workpiece 4 at multiple angles, and the stability after fixation is high, adapting to the shape of the workpiece 4, and the fixing position is accurate, which effectively improves the processing accuracy of the workpiece 4.

[0049] In order to prevent the movable gantry body 233 and the movable side plate clamping plate 213 from interfering with each other when moving toward the workpiece 4, resulting in the inability to fix the workpiece 4, as shown in FIG. Figures 2 to 4 As shown, the length of the lower bottom edge of the movable gantry upright plate 2332 is longer than the length of the movable side panel clamp 213, thereby forming a misalignment to prevent the movable gantry body 233 and the movable side panel clamp 213 from interfering with each other when moving toward the workpiece 4, resulting in the inability to fix the workpiece 4.

[0050] In order to make the movable gantry clamping assembly 23 move more accurately, as Figures 2 to 4As shown, the movable clamping mechanism 2 also includes a movable gantry guide assembly 25 arranged at the lower end of the movable gantry base plate 2331, and the movable gantry guide assembly 25 includes a movable gantry guide rail 251 stacked and arranged below the two ends of the movable gantry base plate 2331, and at least one movable gantry slider 252 corresponding to the movable gantry guide rail 251. The movable gantry base plate 2331 is fixed on the movable gantry slider 252. When the movable gantry clamping assembly 23 slides on the platform 3, the movable gantry base plate 2331 moves synchronously, so that the movable gantry slider 252 fixed at the lower end of the movable gantry base plate 2331 is driven to slide on the movable gantry guide rail 251, and then the movable gantry base plate 2331 is guided and restricted by the movable gantry guide rail 251, so that the movable gantry base plate 2331 moves in a straight line, thereby improving the moving efficiency and accuracy of the movable gantry clamping assembly 23, so that the fixing of the new clamp is more accurate.

[0051] Regarding the specific method of fixing the workpiece 4 by the reference clamping mechanism 1, as shown in FIG. Figure 2 , Figures 7 to 12 As shown, the reference clamping mechanism 1 includes a fixed side panel clamp 11 mounted on the platform 3, a fixed clamping component 12 slidably arranged on the platform 3 and located on the inner side of the fixed side panel clamp 11 and symmetrical to the fixed side panel clamp 11, and a fixed gantry clamping component 13 slidably arranged in the middle of the platform 3 and extending and moving toward the fixed side panel clamp 11. When the workpiece 4 needs to be clamped, the movable side panel clamp 21 starts to push the workpiece 4 toward the fixed side panel clamp 11, so that the side of the workpiece 4 away from the movable side panel clamp 21 is pressed against the fixed side panel clamp 11 to form a preliminary fixation, and the fixed pressing component 12 starts to move toward the fixed side panel clamp 11, thereby pressing the inner side edge of the workpiece 4 to form a further fixation, and the fixed gantry clamping component 13 moves toward the fixed side panel clamp 11, and presses the upper part of the side of the workpiece 4 away from the movable side panel clamp 21 from the upper end, and the lower end of the side wall of the workpiece 4 away from the movable side panel clamp 21 is pressed against the fixed side panel clamp 11, and the upper and lower ends of the side of the workpiece 4 away from the movable side panel clamp 21 are fixed, and the left and right ends are fixed, thereby realizing the overall fixation of the workpiece 4, and the stability after fixation is high, adapting to the shape of the workpiece 4, and the fixed position is accurate, which effectively improves the accuracy of the workpiece 4 processing.

[0052] The specific method of fixing the workpiece 4 by the fixed side plate fixture 11 is as follows: Figure 2 , Figures 7 to 9As shown, the fixed side plate fixture 11 includes a fixed side plate clamp mounted on the side of the platform 3; the fixed side plate clamp includes a fixed side plate bottom plate 111 mounted on the side of the platform 3, a fixed side plate body 112 vertically standing on the fixed side plate bottom plate 111, at least one fixed side plate fixing plate 113 whose side is fixed on the fixed side plate body 112 facing outward and whose lower end is fixed on the fixed side plate bottom plate 111, and at least one fixed side plate bearing plate 114 fixed on the inner side of the fixed side plate body 112. When the workpiece 4 needs to be fixed, the movable side plate driving cylinder 212 is started, and its output shaft extends toward the middle of the platform 3, thereby driving the movable side plate clamp 213 fixed on its output shaft to move synchronously toward the middle of the platform 3, thereby pushing the workpiece 4 to press against the fixed side plate body 112 to achieve preliminary fixation of the workpiece 4. The fixed side plate fixing plate 113 is arranged to have its side edge fixed on the side of the fixed side plate body 112 facing outward and its lower end fixed on the fixed side plate bottom plate 111, so that the fixed side plate body 112 is stably fixed on the fixed side plate bottom plate 111. The fixed side plate fixing plate 113 is triangular in shape as a whole, which is more stable and not easy to collapse.

[0053] Regarding the specific method of fixing the workpiece 4 by the fixing and pressing assembly 12, as shown in FIG. Figure 2 , Figures 7 and 8 as well as Fig.10As shown, the fixed pressing assembly 12 includes at least one fixed pressing cylinder support frame 121 mounted on the platform 3 and close to the middle of the platform 3, at least one fixed pressing driving cylinder 122 fixedly arranged on the upper end of the fixed pressing cylinder support frame 121 and with its output shaft facing the direction of the movable side plate clamp 21, a fixed pressing plate 123 fixedly arranged on the output shaft of the fixed pressing driving cylinder 122, and at least one fixed pressing bearing plate 124 fixed on the inner side of the fixed pressing plate 123. The fixed pressing cylinder support frame 121 is used to support and fix the fixed pressing driving cylinder 122, and fix the fixed pressing driving cylinder 122 to a suitable height position. When the workpiece 4 needs to be fixed, the fixed clamping drive cylinder 122 is started, driving the fixed clamping plate 123 fixed on its output shaft and the fixed clamping bearing plate 124 fixed on the fixed clamping plate 123 to move toward the fixed side plate clamp 11, thereby pressing and fixing the workpiece 4 away from the inner side wall of one end of the movable clamping mechanism 2, thereby further fixing the workpiece 4. At least one fixed clamping bearing plate 124 is arranged on the inner side surface of the fixed clamping plate 123, and the fixed clamping bearing plate 124 matches the shape of the workpiece 4. For example, in the present embodiment, a T-shaped rail is formed on the inner wall of the workpiece 4. In order to avoid the T-shaped rail, the fixed clamping bearing plate 124 is provided with a total of blocks, which are respectively arranged at the upper end of the inner side surface of the fixed clamping plate 123, the left side of the inner side surface of the fixed clamping plate 123, and the right side of the inner side surface of the fixed clamping plate 123, so as to effectively avoid the T-shaped rail and effectively press against the T-shaped rail, so as to press the inner side surface of the workpiece 4 and further fix the workpiece 4. The shape and number of the fixed clamping bearing plate 124 can be set according to the actual situation of the workpiece 4, so no specific limitation is made here.

[0054] The specific method for fixing the upper end of the workpiece 4 by the fixed gantry clamping assembly 13 is as follows: Figure 2 , Figures 7 and 8 As shown, the fixed gantry clamping assembly 13 includes a fixed gantry cylinder support frame 131 erected in the middle of the platform 3, a fixed gantry drive cylinder 132 fixed to the top of the fixed gantry cylinder support frame 131 and with its output shaft facing the direction of the fixed side plate clamp 11, a fixed gantry body 133 fixed on the output shaft of the fixed gantry drive cylinder 132, and at least one fixed side clamping cylinder 134 arranged on the fixed gantry body 133. The fixed gantry cylinder support frame 131 is used to support and fix the fixed gantry drive cylinder 132, and lift the fixed gantry drive cylinder 132 to a suitable height.

[0055] Regarding the specific structural arrangement of the fixed gantry body 133, as shown in FIG. Figure 2 , Figures 7 and 8As shown, the fixed gantry body 133 includes a fixed gantry bottom plate 1331 that is integrally C-shaped, and a fixed gantry vertical plate 1332 that stands vertically at one outer end of the fixed gantry bottom plate 1331 and is integrally right trapezoidal; the number of the fixed side clamping cylinders 134 is 3 groups, which are respectively fixed on the hypotenuse, the upper base, and the right-angled side of the fixed gantry vertical plate 1332. By providing a fixed gantry vertical plate 1332 that stands vertically at one outer end of the fixed gantry bottom plate 1331 and is integrally right trapezoidal on the fixed gantry bottom plate 1331, the fixed side clamping cylinders 134 provided on the fixed gantry vertical plate 1332 can be arranged perpendicular to the fixed gantry bottom plate 1331, facilitating the fixed side clamping cylinders 134 to press against the upper outer surface of the workpiece 4.

[0056] Preferably, as Figure 2 , Figures 7 and 8 shown, a fixed buffer pressing strip 235 can also be correspondingly provided on the fixed gantry driving cylinder 132, so as to achieve close fitting and pressing against the workpiece 4 and prevent damage caused by the direct pressing of the fixed gantry driving cylinder 132 on the workpiece 4.

[0057] As Figure 2 , Figures 7 and 8 shown, when it is necessary to fix the workpiece 4, the fixed gantry driving cylinder 132 is started, driving the fixed gantry bottom plate 1331 connected to its output shaft to move towards the fixed side plate fixture 11, so that the entire fixed gantry body 133 moves towards the fixed side plate fixture 11. The fixed side clamping cylinders 134 provided on the fixed gantry body 133 move synchronously above the workpiece 4. The 3 groups of fixed side clamping cylinders 134 are started, and their output shafts extend towards the workpiece 4, thereby driving the fixed buffer pressing strips 235 provided thereon to press against the workpiece 4. The fixed buffer pressing strips 235 extended by the fixed side clamping cylinders 134 on the hypotenuse press against the upper surface of the special-shaped plate body at the front part of the workpiece 4 away from one end of the movable clamping mechanism 2. The fixed buffer pressing strips 235 extended by the fixed side clamping cylinders 134 on the upper base press against the upper surface of the rectangular plate body of the workpiece 4. The fixed buffer pressing strips 235 extended by the fixed side clamping cylinders 134 on the right-angled side press against the upper surface of the shaped plate body at the rear end of the workpiece 4. The group of fixed side clamping cylinders 134 cooperate with the fixed side plate fixture 11 and the fixed pressing assembly 12 to stably fix one side of the workpiece 4 at multiple angles. Moreover, the stability after fixation is high, adapting to the shape of the workpiece 4, the fixing position is accurate, and the machining accuracy of the workpiece 4 is effectively improved.

[0058] In order to prevent the situation that the fixed gantry body 133 and the fixed side plate clamping plate interfere with each other when moving towards the workpiece 4, resulting in the inability to fix the workpiece 4, as Figure 2 , Figures 7 and 8 As shown, the length of the lower bottom edge of the fixed gantry upright 1332 is longer than the length of the fixed side panel clamp, thereby forming a misalignment to prevent the fixed gantry body 133 and the fixed side panel clamp from interfering with each other when moving toward the workpiece 4, resulting in the inability to fix the workpiece 4.

[0059] Preferably, in order to make the fixed gantry clamping assembly 13 move more precisely, the fixed clamping mechanism also includes a fixed gantry guide assembly arranged at the lower end of the fixed gantry base plate 1331, and the fixed gantry guide assembly includes a fixed gantry guide rail stacked below the two ends of the fixed gantry base plate 1331, and at least one fixed gantry slider corresponding to the fixed gantry guide rail, and the fixed gantry base plate 1331 is fixed on the fixed gantry slider. When the fixed gantry clamping assembly 13 slides on the platform 3, the fixed gantry base plate 1331 moves synchronously, so that the fixed gantry slider fixed to the lower end of the fixed gantry base plate 1331 is driven to slide on the fixed gantry guide rail, and then the fixed gantry base plate 1331 is guided and restricted by the fixed gantry guide rail, so that the fixed gantry base plate 1331 moves in a straight line, thereby improving the movement efficiency and movement accuracy of the fixed gantry clamping assembly 13, so that the fixing of the new clamp is more accurate.

[0060] It should be noted that the new clamp for fixing the workpiece disclosed in the utility model is an improvement on the specific structure, and the specific control method is not the innovation point of the utility model. The guide rails, sliders, cylinders and other components involved in the utility model can be general standard parts or components known to those skilled in the art, and their structures, principles and control methods are all known to those skilled in the art through technical manuals or conventional experimental methods.

[0061] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, other structures obtained by adopting the same or similar technical features as the above embodiments of the present invention are within the protection scope of the present invention.

Claims

1. A new type of fixture for fixing a workpiece, characterized in that: It includes a reference clamping mechanism installed on one side of the platform, and a movable clamping mechanism installed on the other side of the platform and symmetric with the reference clamping mechanism; the movable clamping mechanism includes a movable side plate clamp slidably arranged on the platform, a movable pressing assembly slidably arranged on the platform inside the movable side plate clamp and symmetric with the movable side plate clamp, and a movable gantry clamping assembly slidably arranged in the middle of the platform and extending and moving towards the direction of the movable side plate clamp.

2. The novel clamp for fixing a workpiece according to claim 1 is characterized in that: The movable side plate clamp includes a movable side plate cylinder support frame installed on the side edge of the platform, a movable side plate driving cylinder fixedly arranged on the movable side plate cylinder support frame and with its output shaft facing the middle of the platform, and a movable side plate clamping plate arranged on the output shaft of the movable side plate driving cylinder; the movable side plate clamping plate includes a movable side plate bottom plate fixedly arranged on the output shaft of the movable side plate driving cylinder and integrally in an I shape, a movable side plate body vertically standing on the movable side plate bottom plate, at least one movable side plate fixing plate with its side fixed on the outer side of the movable side plate body facing the outside and its lower end fixed on the movable side plate bottom plate, and at least one movable side plate bearing plate fixed on the inner side surface of the movable side plate body.

3. The novel clamp for fixing a workpiece according to claim 1 is characterized in that: The movable pressing assembly includes at least one movable pressing cylinder support frame installed on the platform and close to the middle of the platform, at least one movable pressing driving cylinder correspondingly fixedly arranged at the upper end of the movable pressing cylinder support frame and with its output shaft facing the direction of the movable side plate clamp, a movable pressing plate fixedly arranged on the output shaft of the movable pressing driving cylinder, and at least one movable pressing bearing plate fixedly arranged on the inner side surface of the movable pressing plate.

4. The novel clamp for fixing a workpiece according to claim 1 is characterized in that: The movable gantry clamping assembly includes a movable gantry cylinder support frame installed in the middle of the platform, a movable gantry driving cylinder fixed at the top end of the movable gantry cylinder support frame and with its output shaft facing the direction of the movable side plate clamp, a movable gantry body fixed on the output shaft of the movable gantry driving cylinder, and at least one movable side clamping cylinder arranged on the movable gantry body.

5. The novel clamp for fixing a workpiece according to claim 4 is characterized in that: The movable gantry body includes a movable gantry bottom plate integrally in a U shape, and a movable gantry vertical plate vertically standing at the outer end of the movable gantry bottom plate and integrally in a right trapezoid shape; the number of the movable side clamping cylinders is 3 groups, which are respectively and correspondingly fixed on the inclined side, upper base, and right angle side of the movable gantry vertical plate.

6. The novel clamp for fixing a workpiece according to claim 1 is characterized in that: The reference clamping mechanism includes a fixed side plate clamp installed on the platform, a fixed pressing assembly slidably arranged on the platform inside the fixed side plate clamp and symmetric with the fixed side plate clamp, and a fixed gantry clamping assembly slidably arranged in the middle of the platform and extending and moving towards the direction of the fixed side plate clamp.

7. The novel clamp for fixing a workpiece according to claim 6 is characterized in that: The fixed side plate fixture includes a fixed side plate clamping plate mounted on the side of the platform; the fixed side plate clamping plate includes a fixed side plate bottom plate mounted on the side of the platform, a fixed side plate body vertically standing on the fixed side plate bottom plate, at least one fixed side plate fixing plate with its side fixed on the outer side of the fixed side plate body facing the outside and its lower end fixed on the fixed side plate bottom plate, and at least one fixed side plate bearing plate fixed on the inner side surface of the fixed side plate body.

8. The novel clamp for fixing a workpiece according to claim 6 is characterized in that: The fixed pressing assembly includes at least one fixed pressing cylinder support frame mounted on the platform and close to the middle of the platform, at least one fixed pressing driving cylinder correspondingly and fixedly arranged at the upper end of the fixed pressing cylinder support frame with its output shaft facing the direction of the movable side plate fixture, a fixed pressing plate fixedly arranged on the output shaft of the fixed pressing driving cylinder, and at least one fixed pressing bearing plate fixedly arranged on the inner side surface of the fixed pressing plate.

9. The novel clamp for fixing a workpiece according to claim 6 is characterized in that: The fixed gantry clamping assembly includes a fixed gantry cylinder support frame mounted in the middle of the platform, a fixed gantry driving cylinder fixed at the top of the fixed gantry cylinder support frame with its output shaft facing the direction of the fixed side plate fixture, a fixed gantry body fixed on the output shaft of the fixed gantry driving cylinder, and at least one fixed side clamping cylinder arranged on the fixed gantry body.

10. The novel clamp for fixing a workpiece according to claim 6 is characterized in that: The fixed gantry body includes a fixed gantry bottom plate integrally in a U shape, and a fixed gantry vertical plate vertically standing at the outer end of the fixed gantry bottom plate and integrally in a right trapezoid shape; the number of the fixed side clamping cylinders is 3 groups, which are respectively and correspondingly fixed on the inclined side, the upper base, and the right angle side of the fixed gantry vertical plate.

Images